May 2017
Neonicotinoid insecticide treatment improves physiological performance of melon and watermelon seeds
Thiamethoxam is a neonicotinoid insecticide, which is believed to induce the expression of enzymes and proteins that activate plant defense mechanisms, thus improving the plant resistance to stress factors. The aim of this study was to evaluate the physiological performance of melon and watermelon seeds treated with thiamethoxam. The seed treatment consisted of five doses of thiamethoxam, 0, 2, 4, 6 and 8 mL per...
May 2017
Evaluation of cowpea root system and yield traits in humid tropical agro-ecology
Roots are essential to plants and can be the focus for yield improvement in the environment the plant grows. The objectives of this study were to evaluate some yield components and root traits in cowpea (Vigna unguiculata (L) Walp) and establish the linear association between the yield and root traits to explore improvement potentials of the crop in humid ecosystem. Ten cowpea accessions were tested in Calabar, Nigeria...
May 2017
Traditional sheep production systems and breeding practice in Wolayita Zone of Southern Ethiopia
The study was conducted in Wolayita zone of Southern, Nations, Nationalities and People Regional State with the objectives to explain its production systems, breeding practice with major constraints of sheep productivity. Purposive sampling techniques were employed to select target farmers. Structured questionnaire, focused group discussions, secondary data sources and field observations were used to generate the...
May 2017
Leaf detector box: Artificial vision system for leaf area identification
The detection of leaf area in plants is a very important parameter to evaluate growth rates. Nowadays, this analysis is performed manually through a process of counting, cutting and weighing leaf that involves long periods of time, providing subjective results and with low repeatability. The purpose of this research was to develop a computational tool (leaf detector box) to detect leaf area through image processing...
May 2017
Intercropping of sweet flag (Acorus calamus L.) with early and late maturing cultivars of rice (Oryza sativa L.)
Field experiments were conducted to explore possibility of introducing Acorus calamus (Sweet flag) under rice ecosystem either as an Intercrop or main crop for optimizing maximum return. In the first experiment, Sweet flag was intercropped with two rice cultivars early IR-64 and late MTU-7029 “Swarna” in additive series where sweet flag was introduced between two normal rows of rice and in replacement...
May 2017
Combining ability analysis of quality protein maize (QPM) inbred lines for grain yield, agronomic traits and reaction to grey leaf spot in mid-altitude areas of Ethiopia
A study was carried out to study the combining ability effects of diallel cross hybrids for grain yield, agronomic traits and reaction to grey leaf spot (GLS). Forty five experimental diallel cross hybrids made from ten quality protein maize (QPM) inbred lines with varying level of resistance to GLS were evaluated along with three checks at Bako and Jima Research Centers during 2014/2015 cropping season. Analysis of...
May 2017
Performance of cassava (Manihot esculanta. Cratz) clones in potential and low moisture stressed areas of Ethiopia
Cassava (Manihot esculanta. Cratz) is one of the most important food crops that constitute a considerable portion of the daily diet of the people and also serves as one of the major source of carbohydrate. Despite its importance, production of cassava in Ethiopia has different constraints and opportunities. Among which, shortage of improved varieties is the first and the most important one. It is mainly cultivated...
May 2017
Guidelines for sustainable irrigation system design and management in sub-Saharan Africa
Despite the fact that the economies of most countries in sub-Saharan Africa (SSA) are dominated by the agriculture sector, the productivity of the sector is still very low. One of the factors responsible for this is the fact that agriculture in SSA is mainly rain fed despite the abundant water resources in the region. Many attempts have been made in SSA to expand irrigation but most of these efforts have not been...
May 2017
Behavior and water needs of sesame under different irrigation regimes: Analysis of growth
The aim of this work was to evaluate the growth of sesame BRS 196 CNPA G4 in different irrigation depths (305, 436, 567 and 698 mm), applied on the basis of crop evapotranspiration– ETc (the depth of 567 mm was equal to 100% ETc). It was conducted at Embrapa Cotton, in Barbalha County, Ceará State, Brazil, 2012. The experiment was in randomized blocks, with treatments distributed in plots with three...
May 2017
Integration of climate change information into drylands crop production practices for enhanced food security: A case study of Lower Tana Basin in Kenya
Climate change and variability poses the greatest challenges to agricultural production in the developing countries and especially drylands. Across Africa, yields of staple crops such as maize, wheat, sorghum and a variety of fruit crops have significantly decreased in the recent years, thus, widening food insecurity gaps. In the dryland areas of Kenya, the situation is further aggravated by low adaptive capacities and...
May 2017
Effect of arbuscular mycorrhizal fungi on survival and growth of micropropagated Comanthera mucugensis spp. mucugensis (Eriocaulaceae)
The use of micropropagation technique has been an alternative to conservation of endangered species, Comanthera mucugensis subsp. mucugensis (popular namely sempre viva de Mucuge); however, there is no information on the effect of arbuscular mycorrhizal fungi (AMF) on the acclimation process of micropropagated plants. This study evaluated the survival, growth and nutritional aspects of the species, C. mucugensis subsp....
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