Abstract
Barley, being a tremendous opportunities crop, we are far back regarding study, research and utilization. An experiment was conducted 2014-2015 to evaluate the barley genotypes for their yield attributing traits and correlation and causation. Eleven yield contributing traits viz., days to booting, heading and flowering; peduncle length, spike length, plant height, flag leaf area, flag leaf-1 area, thousand grain weight, biological weight and yield per hectare were recorded. High significant variation among genotypes was found for traits under study. Genotypes SBYT3-13#1115 (1960 kg), 14-SB-NAK-MR#17 (1760 kg) and AM POP#26 (1660 kg) were found to be superior for their per se performance based on grain yield per hectare, yield attributing and other quantitative traits. Thousand grains weight (0.333) had positively highest significant correlation with grain yield per hectare followed by spike length (0.310). Grain yield per hectare showed negative highly significant correlation with days to flowering (-0.796) followed by days to heading (-0.761) and days to booting (-0.663). Peduncle length (0.229), plant height (0.226), biological weight (0.181) and flag leaf area (0.032) were positively correlated with grain yield per hectare while flag leaf-1 area(-0.029) was negatively correlated. Thus, selection for genotypes with higher thousand grain weight and spike length accommodating earlier days to flowering, heading and booting is a prerequisite for attaining improvement in grain yield per hectare.Int J Appl Sci Biotechnol, Vol 4(4): 529-536
Highlights
Barley (Hordeum vulgare) is one of the oldest and first domesticated crop, considered to be grown even during the Stone Age (Salamini et al, 2002)
Observations were taken for days to booting, days to heading, days to flowering, area of flag leaf, area of flag leaf -1, peduncle length, spike length, plant height, thousand grain weight, biological weight, grain yield per hectare
Five plants were tagged randomly for recording observations for each entry for all the quantitative traits except for days to booting, heading and flowering, thousand grain weight, biological weight and grain yield per hectare for which whole plant from each plot is taken into consideration
Summary
Barley (Hordeum vulgare) is one of the oldest and first domesticated crop, considered to be grown even during the Stone Age (Salamini et al, 2002). The area of production of barley production is limited, but it is grown from the terai up to an elevation of 4000 m It is a staple food crop mainly in the hills and mountains in the west of the country. Barley is an annual cereal, cultivated worldwide in all temperate climate zones It is considered as a major animal feed crop, with lower amounts used for malting and human food. In developing countries like Nepal, research activities are only intense in the major crop like Rice, Wheat and Maize whereas very few efforts had been made in the minor crop like Millet, Buckwheat, Barley. Barley having major importance and many uses in the country, it is still considered as underutilized crop These minor crops are staple food in the upper hilly and mountain region. Planting was done at 1st December, 2014 manually in continuous line sowing
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