Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009
  • Published Articles: 442

JPBCS Articles

Characterization and correlation analysis of economically important parameters of lentil exotic germplasm

November 2018

The basic aim of this study is to evaluate the exotic lentil germplasm (BIGMP LIEN-MH-18) received from ICARDA. Economically desirable characters were studied and correlated to select the genotypes for the targeted breeding programme. Thirty-six lentil exotic entries were studied. The exotic genotypes 36102 and 36108 yielded 665 and 625 kg/ha respectively similar to our local recommended check (Punjab Masoor-09) that...

Author(s): Muhammad Rafiq, Sadia Kaukab, Aqsa Tahir, Masood Qadir, Muhammad Sajjad Saeed, Busharat Hussain and Gulfam Riasat  

Morphological characterization of common bean (Phaseolus vulgaris L.) landraces of Central region of Benin Republic

November 2018

Common bean (Phaseolus vulgaris L.) is an important food consumed in every region in Republic of Benin; however, it remains a neglected and under-utilized crop. In order to assess the value of bean germplasm of the central region in the Republic of Benin for useful breeding programs, 57 accessions were collected from 23 villages. After a classification based on the morphological variables of the seeds, these accessions...

Author(s): Laura Estelle Yêyinou Loko, Azize Orobiyi, Arlette Adjatin, Joel Akpo, Joelle Toffa, Gustave Djedatin and Alexandre Dansi  

Genetic variability of some chickpea (Cicer arietinum L.) genotypes and correlation among yield and related traits in humid tropics of southern Ethiopia

October 2018

The current investigation evaluated the genetic variability of some chickpea (Cicer arietinum L.) genotypes and correlation among yield and related traits in Abaya Woreda. Five improved chickpea genotypes along with one local variety were laid out in randomized complete block design with three replications. Data were recorded from phenological, growth parameters; and yield and related traits depicted the ranges of mean...

Author(s): Mieso Keweti Shengu, Dereje Hirpa and Zenabu Wolde  

Correlation and path coefficient analysis of yield and quality components of garden cress (Lepidium sativum L.) genotypes in Ethiopia

October 2018

The improvement for a trait of interest can be achieved by both direct and indirect selection of characters that are more heritable and easy to select. The aim of this study was to determine the degree and nature of associations among seed yield and seed quality related characters. One hundred eight garden cress (Lepidium sativum L.) genotypes were evaluated for their yield and seed quality related traits using a...

Author(s): Legesse Tadesse, Firew Mekbib, Adugna Wakjira and Zerihun Tadele  

Genetic variability, heritability and genetic advance of maize (Zea mays L.) inbred lines for yield and yield related traits in southwestern Ethiopia

October 2018

Understanding the genetic variability, heritability and genetic advance of traits in any plant population is an important pre-requisite for breeding program. The experiment was conducted to assess the magnitude of genetic variability, heritability and genetic advance of 24 maize inbred lines for 16 quantitative traits. The field experiment was conducted during 2016 cropping season at Jimma Agricultural Research Center...

Author(s): Tadesse Jilo, Leta Tulu, Techale Birhan and Lemi Beksisa  

Evaluation of agronomic performance of beta-carotene rich (yellow fleshed) cassava varieties in Nigeria

October 2018

Twenty-five yellow fleshed cassava varieties including three checks (two improved and one local) were evaluated in a randomized complete block design with four replications in three locations in Nigeria. Tuber yield, dry matter content, root size, fiber content, harvest index, sprouting and vigor of the varieties evaluated were all significant at 0.05 significant levels across the locations. Taste, color of unexpanded...

Author(s): Adetoro N. A., Ogunbayo S. A., and Akinwale M. O.  

Assessment of salt tolerance and variability within some rice germplasm using microsatelittes

October 2018

Soil salinity is a major abiotic stress that affects rice production. It can reduce yield drastically and result in total crop failure. The objectives of this study are to determine the genetic diversity within thirty-six rice accessions and to identify genotypes that are tolerant to salinity. Thirty-six rice accessions including three check varieties were sown in experimental pots and their leaves harvested for DNA...

Author(s): Anyomi W. E., Ashalley R., Amoah N.K.A, Blay E.T. and Ofori K.  

Inheritance and combing ability in maize using a 7x7 diallel cross

September 2018

Twenty one F1s produced from 7x7 diallel mating along with the 7 parents were evaluated to notice the inheritance and combining ability of different traits to obtain high heterotic crosses. Genetic analysis and combing ability were analyzed following Hayman’s and Griffing’s diallel analyses, respectively. Hybrids projecting positive or negative potency ratio with >1.0 value for those traits is also the...

Author(s): S. Begum, S. S. Alam, S. H. Omy, M. Amiruzzaman and M. M. Rohman  

Stability for descriptors of Solanum aethiopicum Shum group (family Solanaceae)

September 2018

Solanum aethiopicum Shum group is a nutrient-rich and income-generating crop enterprise in various sub-Saharan Africa countries. Despite its importance, the development of its improved varieties has not been prioritized. Until now, no field-based descriptor development reference for the crop is available for testing candidate varieties for distinctiveness, uniformity and stability. The purpose of this study is to...

Author(s): Nahamya Pamela Kabod, Godfrey Sseremba, Ruth Buteme, Michael Masanza, Elizabeth Balyejusa Kizito and Katwijukye Apolo Kasharu  

Inheritance and combining ability of cowpea resistance to bruchid (Callosobruchus maculatus F.)

September 2018

The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substantial losses to cowpea during storage in tropical and subtropical regions. The development of successful breeding strategy requires knowledge on gene action and trait inheritance in local and improved sources. In this study, the mode of inheritance, the types of gene action and maternal effects of cowpea resistance to...

Author(s): Weldekidan Belay Miesho, Ulemu Mercy Msiska, Hailay Mehari Gebremedhn, Geoffrey Maxwell Malinga, Patrick Obia Ongom, Patrick Rubaihayo and Samuel Kyamanywa  

Genotype by environment interaction and stability analysis of cowpea [Vigna unguiculata (L.) Walp] genotypes for yield in Ethiopia

September 2018

Ethiopia is claimed to be a center of diversity for cowpea production. The crop is the most drought tolerant and could help the country overcome the recurrent drought problem; however, the yield is very low due to lack of effort to develop varieties. This research was conducted to evaluate the stability of cowpea genotypes and to estimate the magnitude of genotypes by environment interaction (GEI) effect on grain yield....

Author(s): Tariku Simion, Wassu Mohammed and Berhanu Amsalu  

Evaluations of faba bean (Vicia faba L.) varieties for yield and yield related traits in central zone of Tigray, Northern Ethiopia

September 2018

A field experiment was carried out at Laelay maichew and Tahtay maichew districts in central zone of Tigray, Northern Ethiopia, for two consecutive seasons (2014/2015 to 2015/2016) under rain fed conditions. The objective of the study was to evaluate and select best performing faba bean varieties. Ten faba bean varieties including the local check were evaluated in randomized complete block design (RCBD) in three...

Author(s): Kiros Wolday  

Evaluation of constraints in production of root and tuber crops in Ethiopia: Overview of policy neglected climate resilient food security crops

August 2018

The objective of the current study was to examine the major constraints in production of root and tuber crops in Ethiopia with emphasis on identifying the policy gaps. This appraisal was based on survey report of Central Statistical Agency (CSA) for the period of 2011 to 2015. Data of CSA report was chosen for the current study with the view to gain an overview of policy packages in root crops in contrast with other...

Author(s): Semeredin Yimer and Tsegaye  Babege  

Varietal screening for resistance against field and storage crop pests: An implication for Ethiopian crop variety development

August 2018

Food security in developing countries like Ethiopia has been a challenge for many years due to pre and post-harvest losses of agricultural products which are caused by different biotic and abiotic factors.  Grain losses from pest infestation prior to harvest and during storage are a serious problem, particularly in developing countries like Ethiopia. More than 70% insect pests have been identified; they attack...

Author(s): Muez Berhe Gebremdein  

Agro-morphological characterization of some taro (Colocasia esculenta (L.) Schott.) germplasms in Ghana

August 2018

Taro (Colocasia esculenta (L) Schott.) is one of the underutilized crops in Ghana which has great potential in terms of food and nutritional value. Eighteen (18) accessions collected from Samoa (8), Malaysia (2), Indonesia (2) and Ghana (6) were studied under field conditions to collect data on their agro-morphological characteristics and yield potential for the development of the crop. The study was conducted at...

Author(s): R. Boampong, L. M. Aboagye, D. Nyadanu and M. Esilfie  

Potential in a collection of adapted and exotic tropical maize inbred lines as resistance source for stem borers

August 2018

Lepidopteran borers are the most devastating field pests of maize in West and Central Africa. In view of the rapidly changing climate which favours an upsurge of more destructive biotypes of insect pests, diverse sources of resistance from different genetic backgrounds need to be harnessed for crop improvement purposes. Forty tropical maize inbreds comprising adapted and exotic lines from International Institute of...

Author(s): Qudrah Olaitan Oloyede-Kamiyo, Sam Oyewole Ajala and Anthony Oluwatoyosi Job  

On farm demonstration of improved lettuce variety (Lactuca Sativa) in Southeastern zone of Tigray, Ethiopia

July 2018

Improved slow bolting lettuce variety is one of the important traits of lettuce for farmers in the study area to increase their production and income. Therefore a field experiment was conducted in Enderta district of South eastern zone of Tigray with the objective to evaluate and demonstrate the slow bolting lettuce variety, enhance the income of farmers by increasing production and productivity, and participate farmers...

Author(s): Luchia Tekle, Niguse Abebe and Mehari Asfaw

Phenotypic and serological evaluation of cowpea (Vigna unguiculata L.Walp) genotypes for resistance to viral infection under field conditions

July 2018

Viral infections are a major challenge to sustainable cowpea production in sub-Saharan Africa (SSA). Nine cowpea (Vigna unguiculata L. Walp) genotypes were evaluated for resistance against viral infection in a field trial involving randomized complete block design with 4 replications. Viral disease severity was assessed at 2, 4 and 6 weeks after planting (WAP) based on disease symptoms. Double antibody sandwich-enzyme...

Author(s): Elvis Asare-Bediako, Vera Essandoh A. and Aaron Asare T.

Incidence of seed borne fungi in farm saved rice seeds, quality declared seed and certified seed in Morogoro Region in Tanzania

July 2018

Rice (Oryza sativa L.) is the second most important food crop after maize in Tanzania. It faces many challenges like diseases, pests and physical damages, which reduce the seed quality. This article identified microorganisms and the district where they occurred. 13 fungal species comprising of 11 pathogenic and 2 saprophytic fungi were detected and the incidence level varied among sample. Mvomero District showed the...

Author(s): A. D. Kwaloe, , D. G. Msuya, S. Nchimbi-Msolla, D. P. Tokpah and Z. Luther  

Genetic variability in a quality protein maize (QPM) population under double viral infections

July 2018

The type of gene action conferring combined resistance to maize streak virus (MSV) and maize stripe virus (MStV) was investigated in a Quality Protein Maize (QPM) population, ART/98/SW6-OB. Full-sib and half-sib progenies generated using North Carolina Design I mating scheme were evaluated in 2015 and 2016 in two locations endemic to the viral diseases in Nigeria. Serological study was also conducted on the progenies to...

Author(s): Qudrah Olaitan Oloyede-Kamiyo, Kehinde Titilope Kareem and Amos Oluwaseun Ajagbe

Genetic variation of tef [Eragrostis tef (Zucc.) Trotter] genotypes for reaction to tef shoot fly [Atherigona hyalinipennis Van Emden], at Maysiye, Northern Ethiopia

June 2018

One of the major biotic stresses that limits tef yield is insect pests attack. Of these tef, shoot fly is sporadically important insect pest in various tef growing areas of Ethiopia. Evaluation of diversity of tef germplasm in Ethiopia for the reaction tef shoot fly might give a chance to get host plant resistance. The main objective of this study was to assess the genetic variation among tef genotypes for their...

Author(s): Chekole Nigus

Effect of heat stress on common bean under natural growing conditions in three locations in different climate zones in the state of São Paulo, Brazil

June 2018

Common bean (Phaseolus vulgaris L.) originated in medium to high altitude regions and is sensitive to high temperatures. Climate changes from an increase in global temperatures are foreseen, and therefore better understanding of the mechanisms of heat tolerance is necessary. In this context, the aim of this study was to investigate the effects of heat stress on twelve common bean genotypes under natural growing...

Author(s): Daiana Alves da Silva, Raquel Luiza de Moura dos Reis, João Guilherme Ribeiro Gonçalves, Sérgio Augusto Morais Carbonell and Alisson Fernando Chiorato

Development of two high-yielding, consumer-acceptable apple banana hybrids (Musa species, AAB genome group) with resistance to Fusarium oxysporum f. sp. cubense race 1

June 2018

Fusarium wilt of bananas (Musa species) is caused by Fusarium oxysporum f. sp. cubense (Foc). Foc race 1 in particular affects dessert bananas in Uganda, causing >60% yield loss. This study was conducted to assess the performance of two new apple banana genotypes for bunch yield, resistance to Foc race 1 and consumer acceptability. The new apple banana genotypes (NAMU1 and NAMU2), along with two check cultivars, one...

Author(s): Henry Buregyeya,, Robooni Tumuhimbise, Jerome Kubiriba, David Talengera, Kephas Nowankunda, Geofrey Arinaitwe, Wilberforce K. Tushemereirwe, Deborah Karamura, Eldad Karamura and Patrick Rubaihayo

Inheritance and combining ability study on drought tolerance and grain yield among early maturing inbred lines of maize (Zea mays L.)

June 2018

Utilization of stress tolerant maize is key to sustainable production and food security. Limited knowledge on genetics of drought tolerance hampers development of drought tolerant varieties. The aim of this study was to study inheritance and combining ability of drought tolerance and grain yield among early inbred lines of maize. Five inbred lines were mated in full diallel in 2015 major season. The resultant 20...

Author(s): Issa Z. M. M., Nyadanu D., Richard A., Sangare A. R., Adejumobi I. I. and Ibrahim D.

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

May 2018

Maize weevil (Sitophilus zeamais Motschulsky) is a major maize (Zea mays L.) storage insect pest in the tropics which reduces the quantity and quality of maize hence facilitating establishment of aflatoxin and other mycotoxins. The objective of this study was to evaluate maize weevil resistance on selected inbred lines. Twenty eight inbred lines with 2 checks (MTPO701-reistant and Duma 41-susceptible) were used in this...

Author(s): Khakata S., Mbute F. N., Chemining’wa G. N., Mwimali M., Karanja J., Harvey J. and Mwololo J. K.

Genetic variability and diversity studies in Durum wheat (Triticum turgidum L. var. durum) genotypes based on cluster analysis using agronomic and quality traits in Southern Ethiopia

May 2018

Genetic diversity is worthwhile for durum wheat breeding and consequently results in production of more efficient varieties under different conditions. Cluster analysis based on Euclidean distances was carried out with 21 durum wheat genotypes to assess the genetic diversity for agronomic and quality traits. The Unweighted Pair Group Average using Arithmetic Mean as linkage rule was used for the analysis of the...

Author(s): Yonas Shimelis, Wassu Mohammed and Tesfaye Letta

Combining ability assessment in Helianthus annuus L. through line × tester analysis for quantitative traits and quality parameters

May 2018

The cross combinations of different lines and testers (L×T) for high yielding sunflower (Helianthus annuus) hybrids were evaluated. Plant materials were utilized by L×T mating design of 7 lines and 3 testers and their 21 hybrids were sown in the field during 2015 autumn season in RCBD design with 3 replications. Genetic variability, general combing ability (GCA) and specific combining ability (SCA) among...

Author(s): Muhammad Azeem ur Rahman Khalid, Dr Muhammad Ahsan Iqbal, Muhammad Zubair, Amanullah Zafar, Asad Butt, Sulman Abid, Yasir Shahzad, Muhammad Ajmal and Ali Adnan Liaqat

Genotypes × Environment interaction analysis for Ethiopian mustard (Brassica carinata L.) genotypes using AMMI model

April 2018

The genotype x environment interaction (GEI) has an influence on the selection and recommendation of genotypes. To this end, G x E interaction and grain yield stability study was conducted for 17 advanced Ethiopian mustard across three districts (Sinana, Adaba and Agarfa) in the highlands of Bale zone during 2014 and 2015 main cropping season. Randomized complete block design with four replications was used. The...

Author(s): Tadele Tadesse, Gashaw Sefera and Amanuel Tekalign

Compatibility studies in Cola nitida genotypes

April 2018

Cross and self-pollination compatibility studies were carried out using 10 Cola nitida genotypes from the Cocoa Research Institute of Nigeria, Ibadan. The few genotypes that were self-pollinated tended to show low pod production; whereas, crosses between the genotypes showed higher pod production. These data would suggest that multiple genotypes should be included in plantations to achieve higher levels of...

Author(s): Odutayo, O. I., Adeyemi, F. A., Adebola, P. O. and Sotimehim, O. I.

Field assessment of disease resistance status of some newly-developed early and extra-early maize varieties under humid rainforest conditions of Nigeria

March 2018

Periodic assessment of resistant status of genetic materials in a breeding program is an important activity to ensure its continued progress. Forty newly-developed early and extra-early maize varieties were evaluated under natural field infection conditions for two years to assess their resistance status to some common diseases prevalent in the humid rainforest agro-ecology, and to determine effect of the diseases on...

Author(s): Akinwale R. O. and Oyelakin A. O.

Are nonwoven synthetic pollination bags a better choice for sorghum breeding?

March 2018

This work investigated the effects of seven pollination bag treatments on three varieties of sorghum for: grain loss to birds; total weight of five panicles (g); total grain weight of five panicles (g); average grain weight per panicle (g); germination per cent; and occurrence of grain mold during 2016. Varieties were: 1167048 hybrid (brown seeded); BR007B (red seeded); and P9401 (white seeded). The bag treatments were:...

Author(s): R. E. Schaffert, D. S. Virk and H. Senior

Screening cotton (Gossypium hirsutum L.) genotypes for drought tolerance under screen house conditions in Malawi

February 2018

Drought stress is a major factor decreasing cotton productivity in Malawi. To identify drought tolerant cultivars, a study was conducted in 2012 at Bunda College to evaluate the performance of 20 cotton genotypes under water stress conditions. A screen house pot experiment was carried out using a randomized complete block design and data were recorded on tap root length, lateral root number, fresh root weight, dry root...

Author(s): Jessie Mvula, James M. Bokosi, Venon Kabambe and Mackson H. P. Banda

Production of groups of tomatoes in substrate at different concentrations of phosphorus

February 2018

The development of production technologies, such as greenhouses, was highlighted in the growth of horticultural crops. However, these products are often offered without basic instructions to farmers who can generate financial losses. One outstanding production technology is substrate cultivation, which would be very useful in the cultivation of protected plants. Like this, in order to evaluate the effects of different...

Author(s): Douglas José Marques, Tales Machado Lacerda, Wellington Ferrari da Silva, Márcio de Souza Dias and Hudson Carvalho Bianchini

Phenological, morphological and agronomic characterization of sixteen genotypes of cotton plant (Gossypium hirsutum L.) in rainfed condition in Benin

February 2018

In Benin, cotton cultivation is rain fed. There is a need to develop varieties adapted to the current diversity of growing conditions caused by climate disruptions. To identify types of varieties that may be used in crossing to adapt varietal offer to climatic disturbances, sixteen genotypes of diverse origins were characterized with a randomized complete block design with four replications. Fifteen agro-morphological...

Author(s): Emmanuel SEKLOKA, Albert Kora SABI, Valérien Amégnikin ZINSOU, Abib ABOUDOU, Cyrille Kanli NDOGBE, Léonard AFOUDA and Lamine BABA-MOUSSA

Inheritance of cowpea resistance to flower thrips in Uganda germplasm

January 2018

Flower thrips [Megalurothrips sjostedti (Trybom)] is the most damaging insect pest on cowpea. However, information regarding the nature of gene action governing the inheritance of resistance to thrips is not available for cowpea genotypes in Uganda. This study was carried out to determine the inheritance pattern of cowpea resistance to flower thrips. Five resistant cowpea genotypes and three susceptible genotypes were...

Author(s): Symphorien Agbahoungba, Jeninah Karungi, Arfang Badji, Kassim Sadik, Paul Gibson, Richard Edema, Achille E. Assogbadjo and Patrick R. Rubaihayo

Performance of Solanum aethiopicum Shum group accessions under repetitive drought stress

January 2018

Drought is a serious climatic hazard to crop production, more especially when it occurs repeatedly. This created a need to identify repetitive drought tolerant varieties that recover following exposure to drought. Twenty accessions of Solanum aethiopicum Shum group were evaluated for their response to repeated drought exposure in a screen house at Uganda Christian University stressed and well-watered conditions in a...

Author(s): Mildred Julian Nakanwagi, Godfrey Sseremba, Michael Masanza and Elizabeth  Balyejusa Kizito

Evaluation of crossability studies between selected eggplant accessions with wild relatives S. torvum, S. anguivi and S. aethopicum (Shum group)

January 2018

Wild relatives of eggplants represent a good source of variation for breeding programmes, in particular for traits related to biotic and abiotic stresses and also fruit quality traits. However, wild species remain largely unexploited for eggplant breeding compared to other crops like tomato. Seven cultivated eggplant accessions (SM001-02, SM001-04, SM001-06, SM001-07, SA002-02, SA002-03 and SMA003-03) were crossed with...

Author(s): Afful N. T., Nyadanu D., Akromah R., Amoatey H. M., Annor C. and Diawouh R. G.

Estimates of combining ability for resistance to pod shattering in soybean (Glycine max (L.) Merrill) genotypes

December 2017

Combining ability estimates were studied for pod shattering and other agronomic traits in eight  parental soybean genotypes of different pod shattering group namely: susceptible to pod shattering, moderately resistant to pod shattering were crossed in a 4 x 4 North Carolina mating design II to generate 16 crosses, due to missing stands encountered in some crosses, 9 successful F1S hybrids were obtained in the...

Author(s): F. A. Umar, M. S. Mohammed, M. Oyekunle, I. S. Usman, M. N. Ishaq and S. N. Dachi

Assessment of the inheritance pattern of the novel "female only flower" trait in Jatropha curcas L. as potential for hybrid seed production

December 2017

Jatropha curcas L. (JLC) is a perennial shrub, originating in Central and South America and widely distributed in the tropical regions of the world. It is important in the bioenergy industries due to the characteristics of its oil which can be transformed into high quality biofuel for the substitution of diesel and jet fuel. The native gene, female only flower (FOF), is a desirable trait in the production of hybrid seed...

Author(s): Gongora-Canul, C. C., Aguilera-Cauich, E. A. and Martinez-Sebastián, G.

Genetic diversity in speckled bean (Phaseolus vulgaris L.) genotypes in Ethiopia

November 2017

In the present investigation, the genetic variability of 64 speckled type common bean genotypes were evaluated at Haramaya University during 2015 cropping season using 8 × 8 simple lattice design with three replications. The analysis of variance indicated highly significant (P<0.01) differences among genotypes for all the nine characters studied. High genotypic coefficient of variation (GCV) was observed for...

Author(s): Yonas Moges Gelaw

Evaluation of five botanical powders against maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on maize (Jibat variety) under laboratory condition

November 2017

The present study was emphasized on low input technology entitled “Evaluation of five botanical powders against maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on maize (Jibat variety) under laboratory condition”, thereby decreasing the loss of maize in storage. Leave powder of five botanical used at four doses such as 2, 5, 8 and 11% weight by weight with maize seeds were evaluated in...

Author(s): Tufa Bulto, Mohammad Dawd and Surendra Kumar Singh

Combining ability of tropical early maize (Zea mays L.) inbred lines for grain yield and resistance to maize streak virus disease

October 2017

Maize is an important cereal crop in sub-Saharan Africa but production is adversely affected by maize streak virus disease (MSVD). In Ghana, re-occurrence of the disease has been reported in several regions, therefore, necessitating the development of resistant hybrids as the most sustainable and economical option. The objectives of the study were to identify parents and hybrids that combine MSVD resistance with high...

Author(s): Adenike Damilola Ige, Richard Akromah, Allen Oppong and Idris Ishola Adejumobi

Genetic variability, correlation and path analysis of yield and grain quality traits in bread wheat (Tritium aestivum L.) genotypes at Axum, Northern Ethiopia

October 2017

Forty-nine bread wheat genotypes were tested at Axum, Northern Ethiopia in 2016/17, with the objective of assessing the extent of genetic variation, correlation and path analysis of wheat genotypes in yield and grain quality traits using 7 x 7 triple lattice design. Data were collected for 17 agronomic and grain quality characters. For each of the test entries, samples of 500 g grains were taken from each plot for...

Author(s): Berhanu Meles, Wassu Mohammed and Yemane Tsehaye

Genetic inheritance of resistance to Fusarium redolens in cowpea

October 2017

Fusarium related root rots have been associated with reduced cowpea productivity in Uganda. Sources of genetic resistance to Fusarium redolens which was found to be the most virulent have been identified but the mode of inheritance of the genes conferring the resistance is unknown. This study aims to investigate how the genes for resistance to F. redolens are inherited in cowpea. Four F. redolens root rot resistant...

Author(s): Namasaka Roy Wanjala, Geoffrey Tusiime, Orawu Martin, Paul Gibson, Symphorien Agbahoungba, Alladassi Mahulé Elysé Boris and Richard Edema

Performances of selected tropical white maize single-cross hybrids for yield and yield attributing traits

September 2017

In Ghana, the production of hybrid maize is at its infant stage, occupying only about 3% of the area devoted for maize production. Therefore, the yields of this crop are low, 1.7 t ha-1 due to the use of open pollinated varieties (OPVs), shortage of high yielding varieties, biotic and abiotic stresses. Thus, the present study was designed to identify superior crosses based on their agronomic performance. Thirty-two...

Author(s): Yazachew Genet Ejigu, Pangirayi Bernard Tongoona and Beatrice Elohor Ifie

Estimation of heterosis and combining ability in maize (Zea mays L.) for maize lethal necrosis (MLN) disease

September 2017

Nature of gene action and genetic parameters for disease resistance are important attributes in developing resistant cultivars. This provides the sustainable, economically justifiable and environmentally friendly means of controlling plant diseases. In this study 6 x 6 full diallel cross involving genetically divergent maize inbred lines was performed with the aim of developing resistant cultivars against Maize Lethal...

Author(s): Kiyyo J. G. and Kusolwa P. M.

Evaluation of seventy six sugarcane families at early selection stages

September 2017

An experiment was conducted on sugarcane families belonging to the early selection stage of the Sugarcane Research Institute, Kaiyuan, Yunnan Academy, China, to evaluate them for the selection of superior families for the later stages of the breeding program. Seventy-six full-sib families and check variety were evaluated. The experiment was conducted during two growing seasons, corresponding to the plant cane and first...

Author(s): Eid M. Mehareb, Yang kun, Zhao Jun, Fouz  F Aboelenen, Qin Wei, Zan Fenggang, Liu Jiayong,  Xia Hongming, Yao Li, Zhao Peifang, Zhao Yong and Wu Caiwen

Morphological distinctiveness between Solanum aethiopicum Shum group and its progenitor

August 2017

Use of morphological markers offers an alternative in germplasm discrimination of research-neglected crop species. A collection of 25 accessions including five wild progenitors was evaluated in screen house to identify the morphological difference between Solanum aethiopicum Shum and Solanum anguivi. An Unweighted Pair Group Method with Arithmetic mean hierarchical clustering revealed presence of moderate structure with...

Author(s): Godfrey Sseremba, Pangirayi Tongoona, John Savior Yaw Eleblu, Eric Yirenkyi Danquah, Nahamya Pamela Kabod, and Elizabeth Balyejusa Kizito

Introgresion of the SH3 gene resistant to rust (Hemileia vastatrix) in improved lines of CASTILLO® variety (Coffea arabica L.)

August 2017

The genetic improvement at Cenicafé has developed varieties with resistance to Coffee Leaf Rust (CLR) (Hemileia vastatrix) derived from the Timor Hybrid. These varieties have durable rust resistance, especially against race II, the predominant race. In Colombia, these varieties have been cultivated for three decades and still show resistance. Recently, new rust races have appeared attacking these varieties....

Author(s): Andrea Valencia, Alexa Yadira Morales, María del Pilar Moncada, Hernando Alfonso Cortina, and Juan Carlos Herrera

Agronomic performance evaluation of cowpea [Vigna unguiculata (L.) Walp] varieties in Abergelle District, Northern Ethiopia

August 2017

Cowpea (Vigna unguiculata L.) is one of the most important grain legumes in the semi-arid regions of many African countries including Ethiopia. However, it is less cultivated and scarcely distributed pulse crop in Abergelle due to a lack of improved varieties. A field experiment was conducted during the 2014 and 2015 main cropping seasons using a randomized complete block design with three replications to evaluate seven...

Author(s): Fantaye Belay, Atsbha Gebreslasie and Hintsa Meresa

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