African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6274

Table of Content: February, 2020; 15(2)

February 2020

Analysis of farmers’ perceived and observed climate variability and change in Didessa sub-basin, Blue Nile River, Ethiopia

Farmers’ local knowledge of how the climate is changing is crucial in anticipating the effects of climate change, as only farmers who know/perceive the impacts will develop coping and adaption measures. The study is designed to assess farmers’ perception and understanding in climate variability and change and to establish the observed climate change parameters with farmer’s perception and climate...

Author(s): Chala Dechassa, Belay Simane and Bamlaku Alamerew  

February 2020

Identification and mapping QTLs of bolting time in purple cai-tai (Brassica rapa L. var. purpurea)

Bolting time is a crucial agronomic trait for yield and quality in purple cai-tai (Brassica. rapa L. var. purpurea), but the genetic mechanism controlling the procedure remains unknown. In the present study, a double haploid (DH) population derived from two inbred lines of purple cai-tai 4-1 and 040-3 was constructed to identify the quantitative trait loci (QTLs) of bolting time. Genetic linkage map was performed by...

Author(s): Xiao-Hui Deng, Qi-Jun Nie, Zheng-meng Qiu, Cai-xia Gan, Lei Cui, and Feng-Juan Zhu,  

February 2020

Sensory evaluation of coffee cultivars in the Campo das Vertentes Mesoregion, Minas Gerais

The objective of this study was to evaluate the sensory characteristics of coffees from Coffea arabica L. groups, in municipalities located in the Campo das Vertentes mesoregion, in the State of Minas Gerais. Natural and parchment coffees, after drying, consisted of 100% mature fruits. The experiment was carried out on 14 coffee farms located in the municipalities of Carmo da Mata, Oliveira, Santo Antônio do...

Author(s): Bruno Batista Ribeiro, Antonio Nazareno Guimarães Mendes, Alex Mendonça de Carvalho, Francisco Mickael de Medeiros Câmara and Renato Ribeiro Lima

February 2020

Heterosis and combining ability for storage root, flesh color, virus disease resistance and vine weight in Sweet potato [Ipomoea batatas (L.) Lam.]

This study was done to determine the mid-parent heterosis, the general (GCA) and specific (SCA) combining abilities of storage root yield, sweet potato virus resistance (SPVD), flesh color and vine weight of candidate sweet potato clones. Sixteen selected genotypes from two gene pools were crossed in an 8B×8A cross having 64 families. Trials were conducted with 1,896 offsprings and 16 parents during two seasons at...

Author(s): Aliou Ba., Dorcus C. Gemenet, Justus Onguso, Diaga Diouf, Thiago Mendes, Reuben T. Sali, Robert O. M. Mwanga and Mercy Kitavi  

February 2020

Spatial distribution and sampling size for monitoring of African maize stem borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae) on maize (Zea mays L.) in Southern Ethiopia

The African maize stem borer (Busseola fusca) is one of the important biotic constraints for maize production in sub-Saharan African. This study determined the spatial distribution and sampling sizes for African maize stem borer in Southern Ethiopia. Twenty four maize farms were visited in 12 localities at three growth stage of maize. Data were collected on the number of infested and not-infested plants, and the number...

Author(s): Abrham Taddele, Ferdu Azerefegne and Yibrah Beyene

February 2020

Evaluation of the performance of coffee varieties under low moisture stressed areas of Southern Ethiopia

The experiment was conducted by using seven released coffee varieties at three locations in southern Ethiopia, Halaba, Loka Abaya and Dilla, to select coffee varieties with higher yield and tolerant to low soil moisture stress. It was arranged in RCBD having three replications. The result indicated that the varieties showed significant difference on main stem diameter, plant height at harvesting, plant height up to the...

Author(s): Tesfaye Tadesse Tefera, Bizuayehu Tesfaye and Girma Abera  

February 2020

Modeling the sensitivity of strategic plans to risks and uncertainties in forest management

Forest operations are associated with products of a biological source and long-term plans. This makes forest management plans affected by market and environmental uncertainties, which can cause differences between the strategic and operational plans. Risks related to disease spread, adverse weather, timber demand, and available capital can cause a reduction in planted areas. It is necessary that forest management plans...

Author(s): Ricardo Rodrigues de Oliveira Neto, Simone Silva, Ana Carolina de Albuquerque Santos, Rodrigo Vieira Leite, José Marinaldo Gleriani, Helio Garcia Leite, Daniel Henrique Breda Binoti, Aline Edwiges Mazon de Alcântara and Leonardo Pereira Fardin  

February 2020

Successive off take of elements by maize grown in pure basalt powder

Basalt powder wastes from mining activities have potential to be used as a natural fertilizer. Basalt minerals in agricultural soils may release plant nutrients and increase soil negative charge. In this work, the weathering of basalt promoted by maize rhizosphere was investigated. We studied the chemical and mineralogical composition of basalt, including cation exchange capacity, as well as the rate of elements offtake...

Author(s): Luise Lottici Krahl, Simone Patrícia Aranha da Paz, Rômulo Simões Angélica, Leonardo Fonseca Valadares, José Carlos Sousa-Silva, Giuliano Marchi and Éder de Souza Martins  

February 2020

Relation of macrofauna diversity and chemical soil properties in rice field ecosystem, Dukuhseti district, Pati regency, Indonesia

Indonesia is a country with the third largest biodiversity after Brazil and Madagascar. Of the about 325.530 species of flora and fauna globally, an estimated 25% of the world's species are found in Indonesia. Macrofauna, a land animal that plays a role in influencing the soil ecosystem has specific environmental requirements that enables it to be used as biological indicators of ecosystem conditions, mainly rice...

Author(s): Denni Ramadhan Tanjung, Agus Alfian, Joko Winarno, Rosariastuti Retno, Sumani Sumani, Suntoro Suntoro and Supriyadi Supriyadi  

February 2020

Extent of rumen contents use in livestock diets among farmers in Uganda

This study was conducted with the aim of finding how rumen contents are used in livestock diets, problems encountered and areas that needs improvement to enhance livestock production. One hundred livestock farmers from Kampala, Wakiso and Mukono districts were interviewed using a structured questionnaire. The results showed that majority of the work force involved in livestock farming were middle aged adults between 30...

Author(s): Mwesigwa Robert, Karubiu Perminus Migwi, King’ori Anthony Macharia and Onjoro Paul Anthans  

February 2020

Effects of Faidherbia albida on some important soil fertility indicators on agroforestry parklands in the semi-arid zone of Ghana

A study was conducted in the Guinea and Sudan Savannah zones in the Upper East Region of Ghana to investigate the effects of Faidherbia albida on some important soil fertility indicators. Soil sampling and analysis, litter trap, and litter bag techniques were employed to determine the soil’s content of major nutrients, the rate of litterfall production and litter decomposition, respectively. Analysis of variance...

Author(s): Stephen Edem Akpalu, Evans Kwasi Dawoe and Akwasi Adutwum Abunyewa  

February 2020

Evaluation of morphological and quality characteristics of introduced grape cultivars produced under greenhouse conditions in Kenya

Grape production in Kenya is low and the country imports approximately 4,000 metric tons of wine every year. Three Chinese table grape cultivars (Jingyan, Jingxiangyu and Jingcui) and two Chinese wine grape cultivars (Beihong and Beifeng) as well as three French hybrid wine grape cultivars (Chenin Blanc, Sauvignon Blanc and Cabernet Sauvignon) were evaluated for fruit morphology (berries and bunches) and quality...

Author(s): Dennis Njoroge Kuria, Aggrey Bernard Nyende and Fredah Karambu Rimberia  

February 2020

Multi environment and spatial analysis of early maturing sorghum [Sorghum bicolor (L.) Moench] genotypes in dry lowland areas of Ethiopia

Multi environment and spatial analysis of early maturing sorghum [Sorghum bicolor (L.) Moench] genotypes in dry lowland areas of Ethiopia   Amare Seyoum1, Amare Nega1, Kedanemaryam Wagaw1, Taye Tadesse2, Diriba Tadesse2, Alemu Tirfessa1, Habte Nida3, Adane Gebereyhones1, Sewmehone Siraw1, Tsegaye Gebremariam4, Chalachew Endalamaw1, Hailemariam Solomon1, Tamirat Bejiga1, Tokuma Legesse1, David Jordan5, Emma...

Author(s): Amare Seyoum, Amare Nega, Kedanemaryam Wagaw, Taye Tadesse, Diriba Tadesse, Alemu Tirfessa, Habte Nida, Adane Gebereyhones, Sewmehone Siraw, Tsegaye Gebremariam, Chalachew Endalamaw, Hailemariam Solomon, Tamirat Bejiga, Tokuma Legesse, David Jordan, Emma Mace, Daniel Nadew, Ligaba Ayele and Meron Bogale  

February 2020

Characterization of wheat leaf rust pathogen (Puccinia triticina) in some parts of Ethiopia and seedling evaluation of durum wheat (Triticum turgidum) cultivars to the pathogen

Leaf rust caused by the pathogen Puccinia triticina is one of the important diseases of wheat in Ethiopia; and yield loss due to this disease has reached up to 75%. A study was carried out to detect physiologic races of the pathogen from some parts of Bale, Gondar and Shewa and to identify seedling resistance of Ethiopian durum cultivars. Twenty-four mono pustule isolates were made, and out of those, only three P....

Author(s): Habtamu Tesfaye, Ayele Badebo and Mashilla Dejene  

February 2020

Food transition in the Gulf Cooperation Council Region

This study investigates (and forecasts) food consumption patterns in the Gulf Cooperation Council (GCC) region from 1961 to 2023. A vector auto-regressive model (VAR) was used to estimate systems of equations of per capita food consumption of major food items, and their trends over time, for the purpose of highlighting changes in the region’s dietary patterns. The study area had shown symptoms of diet transition...

Author(s): ELSHEIKH Omer Elgaili, ALDERINY Mahmoud Mohamed and ALKAHTANI Safar H. Abdullah  

February 2020

Volumetric space distribution of wood as a tool in sustainable forest

The objective of this work was to evaluate the distribution of forest volume identified through interpolation maps from data obtained from the forest. We sampled 36 plots with 1-ha area. Special maps were used by means of interpolation adjusted by the Spline method. The results indicate that after 20 years of traditional exploration, no significant oscillations were identified for volumes. However, the area explored...

Author(s): Klewton Adriano Oliveira Pinheiro, Francisco de Assis Oliveira, Ademir Roberto Ruschel, Javier Dias Pita, Gideão Costa Santos, Felix Lélis da Silva, Alex da Silva Frazão, Francimary da Silva Carneiro and Marcos Francisco Serafim de Souza

February 2020

Fertilizer management and nutrient use efficiency on rice paddy in integrated system

Nitrogen budget under integrated production system in fish farming is one of the acceptable practices in maintaining ecological balance and circulation. This result reveals the patterns of pond water and nutrient flows which were strongly influenced by the main fish farming activities resulting to large amount of nitrogen inputs. The main nutrient input sources of nitrogen into the system were found to be pig manure,...

Author(s): Abraham, O. V., Akinwole, A. O and Davies, O. A.