Study on Genotypic Response and Correlation Analysis of the Yield and Yield Attributing Traits of Different Barley (Hordeum Vulgare) Genotypes

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.

Assessment of Phenotypic Diversity in Breeding Lines of Barley at Rampur, Chitwan

“…In the article published by (Vitrakoti et al, 2016),grain yield in keeping with hectare had advantageous and noticeably massive end resultwith thousand seed weight (which was positive but non-significant in our result), positive and significant correlation with spike length (which was negative and non-significant in our result) whereas grain yield per hectare showed negative highly significant correlation with days to flowering. Although there exists positive relationship between yield and the other components, the negative correlation between some of them cannot make a useful choice for all as a factor in increasing the yield (Kannenberg 1976).There was nonsignificant positive correlation between plant height and thousand seed weight (Drikvand 2011), which was positive and highly significant in our result.…”

“…Highly significant favorable correlation among yield attributing tendencies suggests that, the unit increment in one of the trait will motive a unit increment inside the every other relatedtraits, which in turn will lead to increase in the grain yield. Hence, these traits could be pointed and noted for the improvement of grain yield by focusing on the associated traits (Vitrakoti 2016).…”

“…Barley is a short seasoned, early maturing annual grain crop with some degree of tolerance to drought and salinity, which allows its production in a wide range of climatic zones including both irrigated and dry land production areas (Baniya, 1989). The genetic system of the crop is simple; however the species are genetically diverse (Vitrakoti et al, 2016).Barley is cultivated in extensive variety of environments in Nepal (Baniya et al, 1997).It has the capability to evolve well in adverse climatic and stress conditions and moreover, can be managed with little input. The geographical diversification of Nepal including fertile plains, sub-alpine forest hills and the Himalayas serves for the disproportionately large biodiversification, relative to its size.…”

Morphological, Physiological, Biochemical and Molecular Response of Barley (H. Vulgare L.) to Water Deficiency

“…The effects of stress depended on the time, duration and intensity. Although it has been higher under irrigated condition, plant height of barley showed low positive correlation with yield [9]. Okuyama et al [10] reported that under non-irrigated condition, yield has a positive moderate correlation with culm diameter and plant height.…”