Author : Zeru yimer kebede
Keyword : Sorghum, heterobeltiosis, heterosis, traits
Subject : Agriculture
Article Type : Original article (research)
Article QR Code
Article File : Full Text PDF
Abstract : Abstract – Shortage of improved sorghum varieties was a challenge for the production of sorghum in China. Hence, the aim of the study was to exploit the genetic potential of sorghum varieties, to characterize the phenotypic traits, and estimate percentage of heterosis. Nine planting materials were laid out in randomized complete block design with three replications. Hybrid vigor was estimated by mid-parent and better- parent heterosis / heterobeltiosis methods. The ANOVA result indicated that, there was significant difference among the sorghum varieties and their hybrids, (p < 0.05). Grain yield varied from 2080.1 (GZ) to 5097.1 (RED1) kg/ha. RED1 had 8.40 % yield advantage over the parents, 623B and QS. Hundred seed weight varied from 2.07 (SLM) to 3.55 gram (White-1). The negative average heterosis for grain yield varied from -19.22 (White-1) to -0.76 (623A/RED2); heterobeltiosis ranged from -21.14 (White-1) to -2.30 (623A/RED2), implied hybrids were low yielders. Heterotic response for grain yield ranged -19.22 (White-1) to 8.40 (RED1); heterobeltiosis ranged -21.14 (White-1) to 5.55 (RED1). The average heterosis for hundred seeds weight varied from 5.4 (623A/ RED2) to 18.53 (White-1), heterobeltiosis ranged from 5.23 (623A/ RED2) to 18.53 (White - 1). Correlation was significant in all pairs of characters (p < 0.05). Grain yield positively correlated with days to maturity (0.064), head weight (0.323), and hundred seed weight (0.392*). Dendrogram confirmed, there was narrow genetic distance among testing materials. However, biplot of the principal component analysis (PCA) for sorghum traits revealed 60.16% variations. Based on the performance, at field condition, variation occurred among the tested sorghum varieties; therefore, we recommended the tested materials for future improvement of sorghum.
Article by : Zeru Yimer Kebede
Article add date : 2021-04-03
How to cite : Zeru yimer kebede. (2021-April-03). Genetic diversity and estimation of heterosis of sorghum (sorghum bicolor l. moench) varieties and their hybrids for grain yield and other traits at, baoding, hebei province, china. retrieved from https://www.openacessjournal.com/abstract/686