Indian Society of Genetics & Plant Breeding

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HETEROSIS AND COMBINING ABILITY STUDIES IN CHILLIES

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To estimate heterosis and combining ability, six chilli varieties (LCA 206, LCA 1079, LCA
960, LIC 13, X-235 and G 4) were crossed in a half dialle!. Involvement of both additive and
nonadditive gene actions was detected for days to 50% flowering, days from fruit set to fruit
maturity, fruit length, fruit girth, fruits/plant, fresh fruit weight, 100-dry fruit weight, and
10o-seed weight with greater predominance of nonadditive gene action. Taking into
consideration the per se perfomlance, sca effects and heterosiS, LCA 206 x LCA 960 was the
best hybrid, yielding 638.3 g/plant, followed by LCA 206
X LA 1079 (535.2 glplant). The
varieties LCA 960, LCA 206 and G 4 were the best general combiners for majority of the
characters, which gave high gca effects for yield/plant with positive and significant gca
effects for many of the yield characters. Out of the 13 characters studied, the manifestation
of heterosis over midparent was maximum (upto 160.3%) for number of branches/plant.
  

Keywords: Chilli, heterosis, combining ability.

Info

Year: 1991
Volume: 51
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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