STUDIES ON HERITABILITY AND CORRELATIONS IN CROSS DERIVATIES OF CHILLI (Capsicum annuum L.) IN THE Fl AND F2 GENERATIONS
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Date
1990
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ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY RAJENDRANAGAR, HYDERABAD.
Abstract
A study of four F2 progenies involving LCA 206/LCA 960,
LCA 206/LCA 1079, X-235/G4 and G4/LCA 206 along with
corresponding five parents was used for the estimates of
neritability, character association, intergeneration
correlation between parents-F1 and F1-F2 , path coefficient
analysis and analysis of variance for the characters plant
height, number of branches per plant, days to 50 per cent
flowering, time taken to fruit maturity, fruit length, fruit
girth, number of fruits per plant, fresh fruit weight,
1undred dry frllit weight, number of seeds per fruit, hundred
seed weight, a~corbic acid content in green chilli and yield
per plant.
High estin1ates of heritability and genetic advance were
recorded in F
2
generation for the characters number of fruits
per plant, asr.orbic acid content in green chilli and yield
per plant in the cross X-235/G4 , whereas high heritability
and moderate genetic advance for the char2cters plant height
and number of seeds per fruit and high genetic advance for
yield per pla11·: in the F2 population of the cross LCA 206/LCA
1079. Moderate heritability and mG~erate genetic adva11ce
for number o f seeds per fruit and ascorbic acid content in
the F2 genera·: ion of the cross LCA 206/LCA 960 were observeq,
while highest heritability with low genetic advance for the
characters fruit girth and hundred seed weight~recorded in
the cross G4/LCA 206.
ttighlfsignificant correlation between parent-F1
.
generation f ~r the characters, number of fruits per plant,
number of seeds per fruit, ascorbic acid content in green
chilli and number of branches per plant in the crosses and
non-significant. correlations were observed of the same
characters in the F
1
-F2 generation. This difference might be
15ue advancing of different generations in different seasons
and generation x environmental interaction might play a role
in masking of the genetic parameters.
The association of yield per plant with number of
branches per plant, number of fruits per plant and ascorbic
acid content in green chilli was found to be positively
~ignificant,while negative association was observed with days
to 50 per ·cent flowering, time taken to fruit maturity and
f ru·i t length i· n d i· cati·n g,h.reoca r 1 y f 1 oweri· ng an d fruit maturity
increased the ~· :~ eld per plant.
The path coefficient analysis for characters like number
of branches pa~ plant, fruit girth and number of fruits per
plant were found to be high and they - .. directly u,;tllence.~
the yield. Selection of these characters will improve the
rield in chilli.
From the ~tudy it can be inf erred that the F2 progenies
of cross X-235/G4 , LCA 206/LCA 1079 and LCA 206/LCA 960 are
found to be superior in the d~cending order of priority with
regards to their performance for the advancement in later
generations.
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Keywords
STUDIES, HERITABILITY, CORRELATIONS, CROSS, DERIVATIVES OF CHILLI (Capsicum annuum L.) IN THE Fl AND F2 GENERATIONS