LINE X TESTER ANALYSIS FOR YIELD AND QUALITY TRAITS IN RED CHILLI (Capsicum annuum var. longum (DC) Sendt.)
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Date
2004
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AAU, Anand
Abstract
Chilli is an important vegetable crop from Solanaceae family. Due to wide variability, it holds potential for further improvement. The present investigation on chilli comprised of 4 GMS based females, 9 males, 36 F1 hybrids and 2 check varieties S-49 and Jwala. The experiment was laid out in randomized block design with 3 replications at Main Vegetable Research Station, Gujarat Agricultural University, Anand Campus, Anand, during kharif-rabi 2002-2003. Heterosis, combining ability and components of genetic variance were studied for 10 characters viz. days to flower initiation, plant height, fruit length, fruit girth, fruits per plant, fruit weight, red ripe fruit yield per plant, ascorbic acid content capsaicin content and moisture content. The analysis of variance indicated significant differences among genotypes for all the characters. Several hybrids exhibited heterobelriosis and economic heterosis for red ripe fruit yield and other characters. The hybrids worth for commercial exploitation of heterosis were ACMS-3 X ACS-2000-2, ACMS-4 X RHRC Pendant, ACMS-4 X ACS-97-2, ACMS-3 X LCA-301 and ACMS-3 X RHRC Pendant. The analysis of combining ability suggested predominant role of non-additive gene action for days to flower initiation, capsaicin content and moisture content. While both additive and non-additive gene actions were observed to be important for the traits namely plant height, fruit length, fruit girth, fruits per plant, fruit weight, red ripe fruit yield per plant and ascorbic acid content. The estimates of gca effects revealed that GMS lines ACMS-3 and ACMS-4 and male parents ACS-2000-2, ACS-2000-3, RHRC Pendant and GC-1 appeared to be good general combiners for red ripe fruit yield per plant and some of the other yield attributes and quality parameters. The estimates of specific combining ability effects indicated that cross combinations ACMS-3 X LCA-301, ACMS-1 X ACS-2000-1, ACMS-4 X ACS-97-2 and ACMS-3 X ACS-2000-2 were good cross combinations for red ripe fruit yield, its major components as well as quality characters. The three hybrids ACMS-3 X ACS-2000-2, ACMS-4 X ACS-97-2 and ACMS-3 X LCA-301, which showed high per se performance, higher heterotic effects and significant sea effects could be exploited for heterosis and for developing high yielding varieties following appropriate breeding methodology.
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PLANT BREEDING AND GENETICS, AGRICULTURE, AN ANALYSIS