IDENTIFICATION OF DUAL TYPE SORGHUM GENOTYPES BASED ON CORRELATION AND PATH COEFFICIENT STUDIES

SU MON THANT*, PUMMY KUMARI, S. K. PAHUJA, JAYANTI TOKAS AND SHIKHA YASHVEER
*Other Cereal Research Session, Department of Agriculture Research, Yezin, Nay Pyi Taw, Myanmar
Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
Department of Biochemistry, CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
Department of Molecular Biology & Biotechnology, CCS Haryana Agricultural University,
Hisar-125004 (Haryana), India
*(e-mail : sumonthantdarrice@gmail.com)
(Received : 6 February 2021; Accepted : 15 March 2021)

SUMMARY

Knowledge about the relationship between green and dry biomass yield, grain yield, and quality traits is important for any dual-purpose sorghum development program. Thus, the objective of this study was to determine correlations and path-coefficients between green fodder yield, stover yield, grain yield and quality traits. The field experiment was conducted at Research Area of Forage Section, Department of Genetics and Plant Breeding, CCS HAU, Hisar during kharif 2019 by using 30 genotypes to study the variability, heritability, genetic advance and genotypic and phenotypic correlations on the basis of nineteen agro-morphological and biochemical parameters. Analysis of variance showed highly significant variation for 19 quantitative parameters under study. Significant variation among all the genotypes was recorded for all the characters. High heritability coupled with high genetic advance was reported for green fodder yield, stover yield and protein yield. In correlation studies, it was observed that green fodder yield was found positively associated with plant height, leaf length, leaf breadth, stem diameter, stover yield, dry fodder yield, grain yield, panicle length, 100 grain weight, protein content and protein yield. HCN content was negatively correlated with green fodder yield and dry fodder yield. In path coefficient analysis, green fodder yield (0.4165), grain yield (0.7330), stover yield (0.6543), plant height (0.6983), TSS content (0.3873) had high positive direct effect on dry fodder yield. However, traits like panicle length (-1.0237), no. of tillers/plant (-0.5931), leaf breadth (-0.4657) and stem diameter (-0.4657) had shown negative direct effect on DFY.

Key words: Green fodder yield, dual purpose, grain yield, quality

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