http://ir.lib.ruh.ac.lk/handle/iruor/19218 Sun, 26 Apr 2026 18:38:38 GMT 2026-04-26T18:38:38Z http://ir.lib.ruh.ac.lk/handle/iruor/19745 Farmers’ perceived impact of climate change on agricultural activities in Otukpo local government area of Benue state, Nigeria. Akinnagbe, O.M.; Onah, C.P.; Olaolu, M.O.; Ajayi, A.R. The study was undertaken to ascertain farmers’ perceived impact of climate change on agricultural activities in Otukpo local government area of Benue State, Nigeria. Data were collected from 60 respondents using interview schedule. Multistage random sampling technique was used to select the farmers. Data were analyzed using percentage and mean statistic. Farmers were aware of the phenomena related to climate change such as rise in both day and night temperature (M= 1.83) and increased variability in rainfall (M= 1.78). The major perceived impacts of climate change on agricultural activities were decrease in agricultural production (M=2.63) and decrease in area for cultivation as a result of erosion (M=2.58). The adaptation methods used to cushion the impact of climate change in the area were planting of cover crops like melon and groundnut (95.0%), practicing of crop rotation (93.3%) and early harvesting of crops (93.3%). The paper recommended that farmers’ adaptation capacities to climate change need to be urgently strengthened by extension agents visitation to disseminate more recent information on climate change Fri, 25 Jul 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19745 2014-07-25T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19744 Effects of water stress on the growth and reproduction of black gram (vigna mungo l.) Dahanayake, N.; Ranawake, A.L.; Senadhipathy, D.D. Black gram (Vigna mungo L.; Fabaceae) is one of the most highly prized pulses in tropical countries especially in India. The green pods are eaten as vegetable and they are highly nutritious. Grain legumes play a vital role in im proving soil health through biological N fixation and are the cheapest source of dietary protein for human and livestock. Their yield is low and unstable due to water stress during growth stages. Low rain fall with concomitant high temperature along with the increased solar radiation due to reduced cloud cover is responsible for limited water supply to crops in many tropical regions which results in shortages of black gram around the world. Water is a primary input not only in enhancing the crop production but also involved directly or indirectly in all the physiological processes in plants which directly changes morphological characters of plants. In the present study changes in morphological characters due to the ten-day water stress were observed at vegeta-tive and reproductivestages (flowering stage and fruiting stage). All characters observed viz. plant height, wet and dry weight of shoots and roots, root length, number of pods, wet and d ry weight of pods, wet and dry weight of seeds were significantly affected by the water stress condition. Water stress at vegetative stage seriously limited the plant height, wet and dry weight of shoots and roots and root length, whereas water stress at reproductive stage showed clear impact on the number of pods, wet and dry weight of pods, wet and dry weight of seeds. The least plant height (46.76cm) and root length (15.98 cm) were observed at vegetatives tage under water stress while control plants showed 88.89cm plant height and 21.85 cm root length. The reduction of the number of pods per plant was more pronounced under soil moisture stress at the flowering stage compared to that under fruiting stage. Therefore, the least number of pods per plant, 2.04, and wet weight of seeds per pod, 0.0031 g, were ob-served in plants stressed at flowering stage while plants under controlled conditions showed 14.9 pods per plant and 0.0907 g of seed wet weight per pod . Water stress at fruiting stage resulted in a wrinkling appearance of seeds with unfilled grains. Number of root nodules was reduced significantly due to drought condition at vegeta-tive stage compared to that under reproductive stages. Wed, 24 Sep 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19744 2014-09-24T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19739 Training needs of women vegetable farmers in Akinyele local government area of Oyo state, Nigeria Yekinni, O.T.; Oguntade, M.I. The need to strengthen the intellectual capabilities of women in their enterprises is important so as to improve their capacities to contribute to household and national development. Any of such intervention should be based on knowledge of the situation to be meaningful. The study assessed the training needs of women farmers on vegetable productions. The study was carried out in Akinyele local government area of Oyo state, Nigeria. Multistage sampling proce-dure was used to obtain primary data from 120 women farmers cultivating vegetable in the local government area. The data was analysed using descriptive statistics such as frequency and percentages while binomial logit regression model was used to analyse the variables in the hypothesis of the study. The result of the analysis re-vealed that the mean age of the women vegetable farmers was 46.45 years and areas of training needs identified by the women were in the areas of chemical weed control, fertiliser selection/rate/application, compost manure preparation. The result of the binomial logit analysis established that involvement in food crop production signifi-cantly influenced the training needs of women vegetable farmers (β=-0.274, p=0.040). The study emphasised the need for the extension agencies to design adequate training programme to meet the needs of women vegetable farmers in the areas of identified training deficiencies. Wed, 01 Jan 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19739 2014-01-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19734 Screening for heat tolerance in spring wheat (triticum aestivum l.) Khan, A.A.; Shamsuddin, A.K.M.; Barma, N.C.D.; Alam, M.K.; Alam, M.A. The present investigation was undertaken to identify the promising heat tolerant lines and to evaluate their heat stress responses. Twenty five spring wheat genotypes were studied in non-stressed (optimum sowing) and stressed (late sowing) environments. The experiments were conducted at Regional Wheat Research Centre, Bangladesh Agricultural Research Institute, Gazipur, during the cropping season of 2009-10. Randomized complete block design was used with three replications. Yield and yield contributing phenological and physiological characters varied among the genotypes under both optimum and late sowing conditions. Ground cover, grain filling duration, canopy temperature at grain filling and biomass production were severely affected by the heat stress leading to low grain yield under late sowing condition. G-12, G-13, G-14, G-18, and G-19 were identified as heat tolerant genotypes based on their relative performance in yield components, grain yield and heat susceptibility indices. Present genotypes are found to be ideal candidates to be used in developing heat tolerant wheat varieties. Fri, 12 Sep 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19734 2014-09-12T00:00:00Z