June 2015

Generation mean analysis to estimate genetic parameters of some traits for rice–weed competitiveness

Weeds are the most widespread biotic production constraint of rice in Africa and one of the major factors limiting grain yield. An efficient breeding strategy could be particularly important for improving weed management in sub-Saharan Africa (SSA) because most smallholder rice farmers use few external inputs. To understand rice weed competitiveness, experiments on reciprocal interspecific crosses derived from FKR19...

Author(s): Moukoumbi Yonnelle Dea, Sie Moussa, Dieng Ibnou, Yao Kouadio Nasser and Ahanchede Adam

June 2015

Climatic conditions requirements of maize germplasm for flowering in the rainforest Agro-ecology of Nigeria

The number of days from planting to flowering in maize (Zea mays L.) is of interest to maize breeders because of its importance in the selection of appropriate hybrid parents. Highly significant interaction of planting dates with varieties for flowering traits have been observed during the early and late cropping seasons in the rainforest agro-ecology of South West Nigeria. This makes the use of flowering dates as...

Author(s): Abimbola Oluwaranti, Morakinyo Abiodun Bamidele Fakorede, Abebe Menkir and Baffour Badu-Apraku

June 2015

Genetic diversity and association of physio-morphological traits for drought resistance in wheat (Triticum aesitivum)

Wheat (Triticum aestivum L.) occupied 17 percentage of the total cultivated land in the world whereas it has contributed major role to maintain the Nepalese agricultural gross domestic products (MOAC, 2012) but area of cultivation has been decreasing. Moreover, potential yield of popular varieties have reduced by the effect of drought. To combat from drought loss, tolerant variety is one of the major solutions to...

Author(s): Rudra Bhattarai, Surya Kant Ghimire, Dhruba Bahadur Thapa and Madhav Prasad Pandey

June 2015

Analysis of phenotypic responses influencing leaf growth rate and harvest parameters in cassava (Manihot esculenta Crantz) under hydrothermal stress

Plants under hydrothermal stress show a variety of responses aimed at reducing leaf growth and total leaf area, thereby reducing physiological processes such as transpiration and photosynthesis. The effects of hydrothermal stress on cassava plant growth parameters were thus investigated. Twenty cassava varieties representing a broad range of genetic diversity were used. Plants were grown in the field, physical...

Author(s): Ephraim Nuwamanya, Patrick R. Rubaihayo, Joseph F. Hawumba, Robert Kawuki and Yona Baguma