PHYSIOLOGICAL BASIS OF VARATION IN PRODUCTIVITY POTENTIAL OF CHILLI {Capsicum annuum L.) GENOTYPES

NAWALAGATTI, C M

PHYSIOLOGICAL BASIS OF VARATION IN PRODUCTIVITY POTENTIAL OF CHILLI {Capsicum annuum L.) GENOTYPES

Files

TH-4839.pdf (4.39 MB)

Date

1997

Authors

NAWALAGATTI, C M

Publisher

University of Agricultural Sciences GKVK, Bangalore

Abstract

Field experiments were conducted at College of Agriculture Farm, University of Agricultural Sciences, Dharwad during kharif 1990 and 1991 to findout the physiological basis of variation in productivity potential and the biochemical basis of murda syndrome complex in four varieties, six lines and two hybrids of chilli. Results revealed that, the morpho-physiological traits differed significantly among the lines, varieties and hybrids, with hybrids recording significantly higher dry weight of leaf, stem, reproductive parts and TDM and having significant positive correlation with yield and yield components. Similarly, the growth parameters viz., AGR, CGR, NAR, SLW, LWR, LAR, LAD and BMD also differed significantly among lines, varieties and hybrids and had significant positive correlation with yield and yield components, except NAR, LWR and LAR.Fruit yield, number of fruits per plant, per cent fruit set, HI,fruitgirth,100-fruit weight, number of seeds per fruit, 1000-seed weight indicated significant differences among the genotypes. The fruit yield and the yield components were significantly higher in hybrids as compared to lines and varieties. The dry fruit yield was found to have significant negative correlation with plant height, days to 50 per cent flowering and stalk length. The capsaicin content and total colouring matter were significantly higher in varieties. Whereas, the ascorbic acid and oleoresin contents were significantly higher in hybrids.The influence of murda syndrome complex resulted in a significant decrease of chlorophyll, total sugars, total phenols and fruit yield in all the varieties, lines and hybrids, but the extent of reduction was more in hybrids and less in GPC-69, GPC-80 among lines, and Jwala among the varieties. It is thus inferred from the present study that, the dry weight of reproductive parts, LAD, SLW, AGR, CGR, HI, number of fruits per plant, 100-fruit weight, number of seeds per fruit, 1000-seed weight, per cent fruit set and fruit girth are important growth and yield parameters for enhancing productivity potential in chilli.