Assessment of genetic variability, heritability and genetic advance for yield and fruit traits in arecanut (Areca Catechu L.)
Virupakshi Hiremata, Narayanaswamy M, Gangaprasad S, Satish KM, Narayanswamy H
Arecanut is the high value commercial crop of coastal and malnad regions of India. India stands first in area and production. It is used for chewing purposes and also in Ayurveda and veterinary medicines. Partitioning of genetic variability into various components helps in understanding the genetic nature of yield and its components. The experiment was conducted at Agricultural and Horticultural Research Station, Sringeri, Karnataka, India, using 10 cultivars in a randomized block design to know the pattern and degree of genetic variability. The analysis of variance indicated a significant variation among genotypes for all the characters. The genotype Mangala recorded higher mean value for characters like fruit length, fruit breadth, husk thickness, fresh weight of husk, fresh nut yield, bunch weight, fresh weight of kernel, dry weight of kernel, fresh weight of husk per palm, dry weight of husk per palm and number of inflorescences. High estimates of PCV (%), GCV (%), heritability coupled with high genetic advance as per cent mean were observed among the characters. The higher value of PCV and GCV were observed for yield (81.26 per cent and 79.74 per cent), dry husk weight (69.93 per cent and 67.78 per cent) and fresh kernel weight (65.05 per cent and 64.03 per cent). Heritability estimates varied from 13.23 to 99.0 per cent. Hence, these characters were found highly influenced by the additive gene action and could be used in genetic improvement through direct selection.
Virupakshi Hiremata, Narayanaswamy M, Gangaprasad S, Satish KM, Narayanswamy H. Assessment of genetic variability, heritability and genetic advance for yield and fruit traits in arecanut (Areca Catechu L.). International Journal of Ecology and Environmental Sciences. 2020; 2(4): 228-232.