ASSESSMENT OF GENETIC VARIABILITY OF CORIANDER (Coriandrum sativum L.) GENOTYPES FOR FOLIAGE YIELD AND QUALITY PARAMETERS
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Date
2019-09-16
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K.R.C COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
The investigation on “Assessment of genetic variability of coriander (Coriandrum sativum L.) genotypes for foliage yield and quality parameters” was undertaken in the year 2018-19 at department of vegetable science, Kittur Rani Chennamma College of Horticuluture, Arabhavi, Gokak of Belagavi district (Karnataka). The experiment was laid out in RCBD design with two replications and 30 genotypes of coriander were used for the study.
The analysis of variance revealed that highly significant variation among the genotypes for all the characters studied indicating the higher magnitude of variability in germplasm. Higher estimates of heritability coupled with high values of genetic advance over per cent mean ( GAM ) were observed for most of the traits studied except for plant height at 30 and 40 days after sowing (DAS), petiole length and root length at 50 DAS. This indicates the predominance of additive components for these traits and hence direct selection could be more effective in improving these traits.
Foliage yield per plant indicated highly significant and positive correlation with dry weight of the plant, stem base diameter, dry stem weight, dry leaf weight, number of leaves, fresh leaf weight, number of branches, fresh stem weight, leaf area, plant height, root length, root weight and petiole length. These traits also recorded maximum direct effect on foliage yield per plant. Hence, these traits can be considered while selecting for foliage yield per plant in coriander.
Based on Mahalonobi’s D2 analysis, 30 genotypes were grouped into eight clusters. Cluster II was found to be with maximum number with 9 genotypes and highest intra-cluster distance was observed in cluster V.
The genotypes viz., DCC-46, DCC-32, DCC-39, DCC-44 and DCC-37 were identified as best genotypes with respect to yield per plant. Genotype DCC-46 was also observed to have good amount of vitamin C as well as protein content, DCC-44 for vitamin C content only and DCC-39, DCC-37 for only protein content of coriander leaves. Therefore, these genotypes could be further assessed for their stability.
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