GENETIC ANALYSIS FOR YIELD AND ITS COMPONENTS IN GRAIN AMARANTH (Amaranthus hypochondriacus L.)
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Date
2018
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Indira Gandhi Krishi Vishwavidhyalaya, Raipur
Abstract
The evaluation of genotype is one of the basic criteria in order to provide fundamental information for plant breeding programme. Present investigation was carried out at Research cum Instructional Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (Chhattisgarh) during 2015-16. The experimental material comprised of 18 germlpasm accession of grain amaranth including 3 checks were sown on 19th November, 2015.
Results of variability analysis revealed that, mean sum of squares due to genotypes were highly significant for all the characters indicated chance of genetic improvement in accessions.
The highest heritability was recorded for the characters protein content, number of panicles/plant, panicle length, grain yield/plant, test weight, grain weight/panicle, plant height, panicle width, days to flowering and days to maturity.
High heritability coupled with high genetic advance was found for traits viz., grain yield/plant, grain weight/panicle, panicle length, number of panicles/plant, protein content and test weight. Which indicated that the predominance of additive gene action in the expression of these characters which could be utilized through selection for the genetic improvement of these characters.
Correlation coefficient studies revealed that grain yield/plant showed the highest significant positive correlation with panicle width followed by panicle length, number of panicles/plant and test weight. Which indicated direct selection for those characters may be advantageous for selecting the high yielding genotypes in grain Amaranth from the available accessions.
Path coefficient analysis revealed that panicle width exhibited maximum positive direct effect on grain yield followed by number of leaves/plant, test weight, number of panicles/plant, grain weight/panicle and days to maturity, whereas days to flowering, panicle length and plant height had negative but significant direct effect on grain yield.
Description
GENETIC ANALYSIS FOR YIELD AND ITS COMPONENTS IN GRAIN AMARANTH (Amaranths hypochondriacus L.)
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