African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 728

AJPS Articles

Effects of slash and burning on soil microbial diversity and abundance in the tropical rainforest ecosystem, Ondo State, Nigeria

September 2010

  This study was carried out to examine the effects of slash and burn on the diversity and abundance of soil microorganisms. Composite soil samples were collected from the study area before burning and two weeks after burning progressively for a period of three (3) months. The bacteria and fungi in the soil samples were isolated and identified. In addition, the pH, soil temperature and soil moisture content of...

Author(s): Adeduntan Sunday Adeniyi

Evaluation of cassava varieties for cassava mosaic disease resistance jointly by agro-inoculation screening and molecular markers

September 2010

  The whitefly-transmitted cassava mosaic disease (CMD) has become a potential threat to cassava (Manihot esculenta Crantz) cultivation in ASEAN countries because of its devastating impact on cassava and overgrowth of whitefly vector regionally. To reduce the risk caused by the disease, it is necessary to evaluate the capacity of major cassava germplasms for CMD resistance to guide local farmers in...

Author(s): Huiping Bi, Mahender Aileni, and Peng Zhang

Effects of low cost drying methods on seed quality of Sorghum bicolor (L.) Monech

September 2010

  The effect of low cost drying methods on the seed quality of different genotypes of sorghum was investigated. Fresh seeds from five genotypes were subjected to three drying regimes, namely sun, shade and silica gel, and were compared to the standard recommended drying condition using a seed dryer (Munter seed dryer Model M120) as control. The effects of the drying regimes on seed moisture content, viability...

Author(s): Ali Zakaria Babiker, Mohammad Ehsan Dulloo, M. A. Mustafa El Balla and El Tahir Ibrahim

Response of some ornamental flowers of family Ranunculaceae to sucrose feeding

September 2010

  The effect of different concentrations of sucrose on some ornamental flowers of family Ranunculaceae was examined. Sucrose was found to enhance vase life in cut spikes of Aquilegia vulgaris and Consolida ajacis cv. Violet blue; besides it improves blooming, fresh and dry mass of flowers. A. vulgaris and C. ajacisexhibits abscission type of flower senescence, while senescence...

Author(s): Waseem Shahri, Inayatullah Tahir, Sheikh Tajamul Islam and Mushtaq Ahmad

Seed germination and viability in two African Acacia species growing under different water stress levels

September 2010

  Acacia species are important in forestation programs and for producing non-timber forest products in arid and semiarid zones, but few studies have been carried out concerning the effects of drought in the germination in order to understand the regeneration process of the species. In this paper, we studied the morphology and the germination pattern under different water stress of Acacia...

Author(s): Amelework Kassa, Ricardo Alía, Wubalem Tadesse, Valentin Pando and Felipe Bravo,

Ecological distribution and feeding preferences of Iran termites

September 2010

  From nine province of Iran, surveyed for wood destroying termites carried out, in 2008 - 2009, sixteen species were collected. Out of the 1050 plants examined in the nine provinces, only 190 were infested by termites. Maximum infestation (22.41%) was recorded in province of Sistan and Baluchestan. Anacanthotermesvagans (Hagen) and Microcerotermes diversus (Silvestri) were more...

Author(s): S. Ravan

Determining genetic diversity based on ribosomal intergenic spacer length variation in Marama bean (Tylosema esculentum) from the Omipanda area, Eastern Namibia

September 2010

  Marama bean [Tylosema esculentum (Burchell) L. Schreiber] is an under-utilized non-nodulating legume, native to the arid and semi-arid areas of Southern Africa, including Namibia, South Africa and Botswana. Its primary benefit to man is based upon the high nutritional value of the seeds. The protein content is slightly higher than that of soybeans and the oil content is twice that of soybeans and...

Author(s): E. Nepolo, P. M. Chimwamurombe, C. A. Cullis and M. A. Kandawa-Schulz

Effect of sowing date and planting density on seed production of carrot (Daucus carota var. sativa) in Ethiopia

August 2010

  An experiment was conducted in 2006 and 2007 cropping seasons to investigate the effect of sowing date and planting density on yield and quality of carrot seed. The crop was grown in factorial combination of four sowing dates (mid November, December, January and February) and four different planting densities (133 333, 200 000, 266 666, and 400 000 plants/ha) in randomized block design with three...

Author(s): Tesfu Mengistu and Charles Yamoah

Factors influencing soil CO2 efflux in Northeastern Indian oak forest and plantation

August 2010

  Temporal changes in soil CO2 efflux rates were measured in a subtropical natural mixed oak forest and managed oak plantation in the Northeastern Himalayan region. Soil CO2 efflux rates in two ecosystems were correlated with key soil biotic (e.g. fungal, bacterial and actinomycetes populations) and abiotic (e.g. soil moisture, temperature, pH and organic carbon concentration) variables. Rate of...

Author(s): R. R. Pandey, G. Sharma, T. B. Singh and S. K. Tripathi

Effect of cutting positions and growth regulators on rooting ability of Gonystylus bancanus

August 2010

  The effect of cutting positions and growth regulators on rooting ability ofGonystylus bancanus were studied. This study, aims to determine the effects of cutting positions (top, middle, and bottom) and hormonal treatments (control, Seradix 3, Planton 3000, IBA 100 mg and IBA 150 mg) on the rooting ability of G. bancanus. The top position recorded the highest survival percentage of 90.7%...

Author(s): A. S. Nor Aini, V. S. Guanih and P. Ismail

Some observations on the culture of attached groundnut (Arachis hypogaea L.) gynophores in simplified nutrient solutions

August 2010

  Attached groundnut gynophores of Virginia line Virginia bunch strain 1 (VB-1), Spanish line TMV-3 and Valencia line CBBR4 were cultured singly in aerated, simplified nutrient solutions consisting of (2 μM iron (Fe) and 0.5 μM zinc (Zn) with or without 100 μM calcium (Ca). In all lines, normal and apparently healthy pods were produced in solutions containing Ca, whereas, pod growth was severely...

Author(s): E. Godfrey Zharare, F. C.  Pax Blamey and L. Colin Asher

Antimicrobial activity evaluation of the oleoresin oil of Pistacia vera L.

August 2010

  The hydrodistilled essential oils from the exudates of Pistacia vera L. stems have been tested against three bacteria, Escherichia coli, Staphylococcus aureus andProteus using three methods: agar disc diffusion method, determination of MIC (minimal inhibitory concentrations) and in the liquid phase, by Maruzella method.The results obtained showed that E....

Author(s): Bachir Raho Ghalem and Benali Mohamed

The effects of some cryptogamic extracts on the primary productivity of Vigna unguiculata L. Walp

August 2010

  The effects of hot and cold aqueous extracts of Barbula lambarenensis, Dryopteris flix-max; Nephrolepis davalloides, Phymatodes scolopenta, Platyceriumangolense and Azadrachta indica and Karate 2.5EC (chemical) on the primary productivity of cowpea were investigated. The extracts of the plant materials and the chemical were appropriately used to irrigate the cowpea twice a week...

Author(s): P. O. Fatoba and O. Rebecca Akolo

Evaluation of intra and interspecific rice varieties adapted to valley bottom conditions in Burkina Faso

August 2010

  Rice is one of the major staple foods in Burkina Faso and in-country production covers about 60% of the demand and 40% is met from imports. The immense potential of the lowlands in Burkina Faso for durable intensification of rice cropping have not been realised due to biotic and abiotic constraints. Hence, there is an urgent need to increase and improve the production of rice in order to meet up with the...

Author(s): M. Sié, S. A. Ogunbayo, D. Dakouo, I. Sanou, Y. Dembélé, B. N’dri, K. N. Dramé, K. A. Sanni, B. Toulou and R. K. Glele

An efficient protocol for in vitro clonal propagation of natural sweetener plant (Stevia rebaudiana Bertoni)

August 2010

  Leaf segments of Stevia were cultured on MS medium supplemented with varying concentrations (0.5, 1.0, 1.5, 2.0, 2.5 mg/L-1) of growth regulators (BAP and 2, 4-D). Ninety one percent aseptic cultures were obtained when sterilized with 0.1% HgCl2 for 10 min. The highest amount of callus was obtained in MS medium supplemented with1.0 mg/L-1 BAP+0.5 mg/L-1 2, 4-D, respectively. On the...

Author(s): Ashish Ojha, V. N. Sharma and Vinay Sharma

Influence of watering regime and mycorrhizae inoculations on the physiology and early growth of Acacia senegal (L.) Wild.

July 2010

  Acacia senegal is endowed with features that give it potentials for ecosystem stabilization, anti-desertification and for production of high quality gum-Arabic. However, the natural population which is becoming low has been traced to poor seed germination and seedling survival. The influence of watering regime and mycorrhiza inoculation on some physiological parameters and early growth of A....

Author(s): M. B. Oyun, S. A. Adeduntan and S. A. Suberu

High and low pressure gene gun devices give similar transformation efficiencies in maize calluses

July 2010

  Maize (Zea mays) is a major food crop of the world. Biotechnology plays an important role in plant genetic improvement, particularly for the introduction of novel traits in order to improve agronomic performance, medical and industrial applications and food quality. Particle bombardment is a rapid and simple method that enables the generation of events and affords genes expression studies. Nonetheless, an...

Author(s): Cecilia Décima Oneto, Ezequiel Bossio, Germán González, Paula Faccio and Dalia Lewi

Effects of leaf harvest and season on the fruit yield of summer squash genotypes in Madagascar

July 2010

  Summer squash (Cucurbita pepo L.) is one of the most popular vegetables in Madagascar, where it is grown for both leaves and fruit. Previous breeding efforts concentrated solely on high fruit yield. In recent years the demand for varieties that can produce edible fresh leaves and high fruits yield has increased. Our objective in this study was to evaluate the effects of leaf harvest and season on...

Author(s):   M. A. Yeboah, V. Katoch, R. Rakoto-Herimandimby, A. Rahantanirina and B. Rakotoarisoa

Genetic diversity and characterization of African eggplant germplasm collection

July 2010

  Genetic diversity among 70 “scarlet eggplant” (Solanum aethiopicum L.) entries from different geographical origins was assessed. Entries were firstly evaluated for the main morphologic traits and chlorogenic acid content. Standard statistics and multivariate analyses were utilized to assess the phenotypic diversity and grouping the entries. In addition, amplified fragment length...

Author(s): F. Sunseri, G. B. Polignano, V. Alba, C. Lotti, V. Bisignano, G. Mennella, A. D’Alessandro, M. Bacchi, P. Riccardi, M. C. Fiore and L. Ricciardi

A comparative study of morphological and molecular diversity in Ethiopian lentil (Lens culinaris Medikus) landraces

July 2010

  Genetic diversity assessment with different methods and their comparison could provide complementary information for improvement and conservation programs. However, such information is not available for Ethiopian lentil landraces. To fill this gap, nine morphological traits and four ISSR primers were used on seventy Ethiopian lentil landrace accessions to study morphological and genetic diversity among the...

Author(s): Edossa Fikiru, Kassahun Tesfaye and Endashaw Bekele

Assessment of traditional medicinal plants in Endrta District, South-eastern Tigray, Northern Ethiopia

July 2010

  Ethnobotanical data were collected between September and December, 2009 on six field trips to investigate medicinal knowledge and application of medicinal plants in Endrta Wereda (the lowest administrative unit in Ethiopia), South-eastern Tigray, Northern Ethiopia. Semi-structured interviews, observation and guided field walks with informants were employed to obtain ethnobotanical data. A total of 35...

Author(s): Gidey Yirga

Comparative study on physicochemical variation for different samples of Cassia grandis Linn. leaves

July 2010

  The present study is intended primarily to confirm changes with respect to quality of the drug. The variability in proper production unit, supply unit, methodology of collection and storage conditions were used to change the crude herbal drugs. The lack of knowledge of proper methodology, availability and more demands of herbal drugs for better treatment are promoting the practices of adulteration and...

Author(s): Mukesh Kumar Meena, Subodh Chand Pal, Abhishek Kumar Jain, Chandra Prakash Jain, Mahendra Singh Ashawat, Kalpesh Gaur and Anamika Jain

Seed coating of safflower (Carthamus tinctorius L.) in order to delay germination

July 2010

  The idea tested was the restriction of water uptake as a means of influencing the germination rate of the coated seed. This led to the choice of an acrylic plastic polymer to be used as coating material. Assembled spinning disc equipment was used for coating the seeds. The germination tests of the coated seeds were performed in Petri dishes in a randomized complete blocks design with five replications. With...

Author(s): Khoshnood Alizadeh Dizaj

Chemical manipulation of tomato growth and associated biochemical implications on flavonoid, lycopene and mineral contents

June 2010

  The consumption of tomato (Solanum lycopersicon) has been linked with reduced risk of chronic degenerative diseases. Therefore, this study was carried out to investigate the biochemical implications of bioregulator application on flavonoids, lycopene, calcium, magnesium, potassium, sodium, phosphorus and iron contents of tomato. Seeds of the tomato, genotype JM 94/47 were subjected to pre –germination...

Author(s): C. O. Olaiya and A. A. Adigun

Anatomy and morphology of Nicotiana glauca with regard to its crystals characterization

June 2010

  Nicotiana glauca belongs to the Solanacese family of which Nicotiana tabacumand Nicotiana rustica are best known for their use as tobacco. N. glauca attains the greatest abundance and diversity in Central Argentina where it is considered native, and has been known as a weed in South Africa since the 19th Century. Extensive work on toxic effect of secondary metabolites extracted...

Author(s): Zoleka Mhinana, Buyisile Mayekiso and Michael L. Magwa

Changes in photosynthetic quantum yield of developing chloroplasts in lotus (Nelumbo nucifera Gaertn.) leaf during vegetative, bud and flowering stages

June 2010

  Photosynthetic characteristics of the rotund or orbicular leaves of a monocarpic aquatic plant lotus (Nelumbo nucifera Gaertn.) leaves growing under direct sun light of tropics is studied and the developmental pattern of chloroplast along the foliage during vegetative, bud and flowering stages are studied by the measurement of the quantum efficiency of PS II photochemistry or photosynthetic quantum yield...

Author(s): Meena Misra and Amarendra Narayan Misra

Ethno-botanical survey of the non-timber forest products in Sapele Local Government Area of Delta State, Nigeria

June 2010

  An ethno-botanical survey of the non-timber forest products (NTFPs) in Sapele Local Government Area of Delta State, Nigeria was carried out in 2008 with a view to determining the usefulness of the resources to farmers in peasant subsistence. A total of 150 useful species of both plant and animal origins was recorded as having various applications in the lives of the rural dwellers in the area. The result...

Author(s): O. M. Agbogidi

Seasonal distribution of soil fungi and chemical properties of montane wet temperate forest types of Tamil Nadu

June 2010

  Forty eight soil samples were collected from Wet evergreen forest of Tamil Nadu, Southern India; the fungi from these soil samples were isolated in (June – July) South West monsoon and (November – December) North East resting monsoon both seasons. About different species belongs to various groups viz; Ascomycotina, Zygomycotina and Deuteromycotina were identified with the help of relevant...

Author(s): K. Saravanakumar and V. Kaviyarasan

Essential oils analysis of the rhizomes of Alpinia conchigera Griff. and leaves of Alpinia malaccensis (Burm. f.) Roscoe from Bangladesh

June 2010

  The essential oils obtained by hydrodistillation of the rhizomes of Alpinia conchigera Griff. and leaves of Alpinia malaccensis (Burm. f.) Roscoe were analysed by gas chromatography mass spectrometry (GC-MS). 74 compounds were identified in A. conchigera rhizome oil among them, 40 had not been detected previously. The major chemical class was terpenoids, with eucalyptol (25.85%),...

Author(s): Mohammad Nazrul Islam Bhuiyan, Jasim Uddin Chowdhury, Jaripa Begum and Nemai Chandra Nandi

Antibacterial potential of crude leaf extracts of Eucalyptus camaldulensis against some pathogenic bacteria

June 2010

  The antibacterial activity of the crude leaf extracts of Eucalyptus camaldulensis  were determined using the agar well diffusion method against clinical isolates of Escherichia coli, Staphylococcus aureus, Salmonella typhi, Proteus mirabilis andKlebsiella pneumoniae. At an extract concentration of 50 mg/ml, the growths of all the pathogenic bacteria were arrested, though to...

Author(s): El-Mahmood Muhammad Abubakar

Molecular genotyping of selected soybean (Glycine max L.) genotypes grown in different regions of East Africa

May 2010

  Soybean (Glycine max (L.) Merril) is one of the most popular pulses because of its protein content and nodulating ability. However, most farmers and researchers do not have sufficient genetic information of the genotypes that they grow. This research aimed at determining the molecular characteristics of selected soybean genotypes grown in different regions of East Africa and make recommendations to the...

Author(s): Fredrick M. Njoka, Zedekiah A. Okwany and Elijah K. Githui

Dry matter yields and hydrological properties of three perennial grasses of a semi-arid environment in East Africa

May 2010

  Enteropogon macrostachyus (Bush rye), Cenchrus ciliaris L. (African foxtail grass)and Eragrostis superba Peyr (Maasai love grass) are important perennial rangeland grasses in Kenya. They provide an important source of forage for domestic livestock and wild ungulates. These grasses have been used extensively to rehabilitate denuded patches in semi-arid environment of Kenya. This study...

Author(s): Kevin Z. Mganga, Nashon K. R. Musimba, Dickson M. Nyariki, Moses M. Nyangito, Agnes W. Mwang’ombe, Wellington N. Ekaya, Daniele Clavel, Judith Francis, Ralph von Kaufmann, Jan Verhagen and William M. Muiru

Low intensity tapping systems applied to clone PR 107 of Hevea brasiliensis (Muell. Arg.): Results of 21 years of exploitation in South-eastern Côte d’Ivoire

May 2010

  The cultivation of Hevea brasiliensis, which is the main source of natural rubber, is facing a problem of scarcity and/or high cost of skilled labour. One of the means to remedy this constraint is to reduce the intensity of tapping. This work aims at studying tapping systems of low intensity tapping but highly stimulated (S/4 d3 6d/7 8-10/y(m) and S/2 d6 6d/7 8-10/y(m)) which enable to reduce the need...

Author(s):   Eric Francis Soumahin, Samuel Obouayeba, Koulaka Emmanuel Dick, Denezon Odette Dogbo and Abo Pierre Anno

Phytotoxicity of uncomposted and composted poultry manure

May 2010

  Different uncomposted and composted poultry manure types (laying hen and broiler), mixed at increasing rates (0, 25, 50, 75 and 100%) with two amended peat substrates, were tested to study the phytotoxicity using the cress (Lepidium sativum, L.) germination method. The results showed that composting generally reduced the phytotoxicity of the manure mixtures. The germination index was highest in both amended...

Author(s): M. Mar Delgado, José V. Martin, Rosario Miralles De Imperial, Cristina León-Cófreces and M. Cruz. García

Isolation of potential antibacterial and antioxidant compounds from Acalypha indica and Ocimum basilicum

May 2010

  In recent years multiple drug resistance has been developed in many microbes due to indiscriminate use of existing antimicrobial drugs in the treatment of infectious diseases. This paves the way for reconsidering traditional medicine; hence a study was carried out to explore the antimicrobial activities of the acetone and ethanol extract of Acalypha indica and Ocimum...

Author(s): K. Ramya Durga, S. Karthikumar and K. Jegatheesan

Study of pollen tube growth, cross-compatibility and fruit set in some almond genotypes

May 2010

  Almond is one of the most important nut crops of Maragheh, Iran. In the present study, six Maragheh indigenous genotypes with favorable traits were selected for the investigations of pollen tube growth, fruit set and their compatibility. Genotypes were pollinated by the pollen of each other. Fruit set was studied in the filed, and pollen tube growth was studied in the laboratory with florescence microscopy....

Author(s): Y. Sharafi, M. Karimi and M. Ghorbanifar

Application of a satellite-based climate-variability impact index for crop yield forecasting in drought-stricken regions

April 2010

  A quantitative index is applied to monitor crop growth and predict agricultural yield in drought-stricken regions. This Climate-Variability Impact Index (CVII), defined as the monthly contribution to overall anomalies in growth during a given year, is derived from 1 km MODIS Leaf Area Index. The CVII integrated over the growing season represents the percentage of the climatological production either gained or...

Author(s): Ping Zhang, Bruce Anderson, Mathew Barlow, Bin Tan and Ranga B. Myneni

Assessment of physical properties of gum arabic from Acacia senegal varieties in Baringo District, Kenya

April 2010

  A study was conducted to assess the physical properties of gum arabic obtained from two Acacia senegal varieties (var.senegal and var.kerensis). in Marigat division, Baringo district. Gum arabic samples from the experimental sites at Solit, Kapkun, Kimorok and Maoi were collected, dried and analysed to establish their physical characteristics. Moisture content in gum arabic obtained from...

Author(s): J. K. Lelon, I. O. Jumba, J. K. Keter , Wekesa Chemuku and F. D. O. Oduor

Agronomic, economic and ecological aspects of the papaya (Carica papaya) production in Tabasco, Mexico

April 2010

  The cultivation of papaya is important in the tropic because it provides source of income to the farmer within a short time. Statistical data were obtained from farmers located in the Chontalpa, Rios and Centro-Sierra regions; the size of the survey was 67 farmers. The study shows the results of the farmers’ problem in a drastic reduction of their productivity because of the virosis and low prices in...

Author(s): E. Guzman-Ramon, R. Gomez Alvarez, J. M. Pat-Fernandez, H. A. J. Pohlan, J. C. Alvarez-Rivero, V. Geissen, F. Mirafuentes and R. Ramos

Seed metrics for genetic and shape determinations in African yam bean [Fabaceae] (Sphenostylis stenocarpa Hochst. Ex. A. Rich) harms

April 2010

  The metric measures on seeds, their correlation and relationship are important for systematic breeding for seed yield and shape determination. Variations among eighty genotypes of African yam bean (AYB) for six metric seed characters (seed length, width and thickness and their ratios) were evaluated in this study. Paired comparison among the six characters revealed very high significance (P < 0.001),...

Author(s): B. D. Adewale, O. B. Kehinde,  J. O. Popoola and C. O. Aremu

Structure and composition of vegetation in subtropical forest of Kumaun Himalaya

April 2010

  An extensive sampling was conducted for vegetational analysis in different forest sites between 1600 and 2600 m asl in Kumaun Himalaya. Quercus leucotrichophora A. Campus, Quercus floribunda Lindl. ex Rehder, Quercus semecarpifolia J. E. Smith and Pinus roxburghii Sarg. are the dominant tree species in Banj-oak, Tilonj-oak, Kharsu-oak and Chir-pine forests,...

Author(s): Geeta Kharkwal, and Yaswant Singh Rawat

Development of a lemon sorting system based on color and size

April 2010

  Grading systems give us many kinds of information such as size, color, shape, defect, and internal quality. Among these color and size are the most important features for accurate classification and/or sorting of citrus such as oranges, lemons and tangerines. Basically, two inspection stages of the system can be identified: external fruit inspection and internal fruit inspection. The former task is...

Author(s): M. Khojastehnazhand, M. Omid and A. Tabatabaeefar

Effects of Terralyt - Plus® on soil pH, nutrient uptake and dry matter yield of maize

March 2010

  Acid soils are common in the tropics and managing them for sustainable cropping usually demands soil amendments. A greenhouse experiment was conducted at the Institute of Agricultural Research and Training, Ibadan, Nigeria to evaluate the effects of a soil amendment substance - organic biostimulator - Terralyt-Plus® on the growth, soil pH, nutrient uptake and dry matter production of maize. The soils...

Author(s): M. O. Akande E. A.  Makinde,    L. B. Taiwo  and J. A. Adediran

Antimicrobial and antioxidant activities of essential oil and methanol extract of Jasminum sambac from Djibouti

March 2010

  The essential oil was subjected to screening for their possible antioxidant activity by two complementary test systems, namely DPPH free radical scavenging and β-carotene-linoleic acid assays. Butylated hydroxytoluene (BHT) was used as positive control in both test systems. In the DPPH test system, the IC50 value of essential oil and methanol extract were respectively 7.43 and 2.30...

Author(s): Fatouma Abdoul-Latif, , Prosper Edou, François Eba, Nabil Mohamed, Adwa Ali, Samatar Djama, Louis-Clément Obame, Ismael Bassolé and Mamoudou Dicko

Morphometric study of the genus Senna Mill. in South-western Nigeria

March 2010

  Thirteen quantitative characters of the leaves, fruits, seeds and flowers were used in the study of eight Senna Mill. species. The characters include leaflet length, leaflet width, leaflet length/width, Number of leaflets, lamina length, petiole length, pedicel length, petal length, fruit length, fruit width, fruit length/width, seed length and seed width. These characters were measured with the aid...

Author(s): Mike O. Soladoye, Monsurat A. Onakoya, Emmanuel C. Chukwuma, Mubo A. Sonibare

How fertilization affects yam (Dioscorea alata L.) growth and tuber yield across the years

March 2010

  This study deals with the response of Dioscorea alata to NPK-Ca fertilization as affected by differences in weather conditions in two growing seasons. Experiments were conducted in the central Côte d’Ivoire in 2006 and 2007. The experimental design was a randomised complete block design with 4 replications. The dose of 160-10-180-110 kg ha-1 of NPK-Ca, respectively was compared to...

Author(s): V. K. Hgaza, , L. N. Diby, , A. Assa and S. Ake

Degradation of fungal cell walls of phytopathogenic fungi by lytic enzyme of Streptomyces griseus

March 2010

  In vitro tests of interactions between Streptomyces griseus strains and some soil-borne plant pathogens (Fusarium oxysporum, Alternaria alternate, Rhizoctonia solani and Fusarium solani) and 2 isolates of Aspergillus flavus were studied on PDA medium. Strains tested produced a metabolite that inhibited growth of plant pathogenic fungi on PDA medium (dual culture...

Author(s): A. Anitha and M. Rabeeth

S1 selection of local maize landraces for low soil nitrogen tolerance in Zambia

March 2010

  Low soil nitrogen (N) limits maize production in Zambia. S1 selection was used to select for tolerance to low N among ninety-six maize landraces during 2004 - 2007 in Zambia. The landraces were evaluated under low N, drought and optimal conditions; and selfed in a nursery, under optimal conditions. Data on grain yield (GY), number of ears per plant, leaf senescence and anthesis-silking interval were used...

Author(s): Francisco Miti, Pangirayi Tongoona and John Derera

Genetic variability of some agronomic traits in the Iranian Fenugreek landraces under drought stress and non-stress conditions

February 2010

This study was carried out to assess the genetic diversity and heritability of various agronomic traits using twenty fenugreek landraces from Iran. The trial was conducted at Maragheh experiment station in North-west of Iran under rainfed (RF) and irrigated (IR) conditions during 2008 cropping season. Results of combined analysis of variance showed significant differences among landraces for all traits except for...

Author(s): Davoud Sadeghzadeh-Ahari, M. R. Hassandokht, A. K. Kashi, A. Amri and K. H. Alizadeh

Effect of chemical properties of soils on gum elementary compositions from Acacia senegal var. kerensis in Samburu and Marsabit Districts

February 2010

  Geographical Positioning System was used to mark the sites of Acacia senegalvar. kerensis in Marsabit and Samburu districts. Soil and gum samples were collected for analysis of pH, carbon, nitrogen and phosphorus. Soil pH (6.0 - 6.7) varied significantly (p < 0.05) with pH of gum (4.54, 4.50, 4.51 and 4.52) in all the sites. In Merrile, organic carbon in gum (0.15%) was significantly...

Author(s): Joseph K. Lelon, Meshack O. Muga, David W. Odee, Chemuku Wekesa and Beatrice Ndakwe

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