EVALUATION OF ADVANCE BREEDING MATERIALS OF PIGEONPEA [Cajanus cajan(L.)Millsp.] FOR YIELD AND BIOTIC STRESSES
Loading...
Date
2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Birsa Agricultural University, Ranchi
Abstract
A total of 14 medium duration genotypes of Pigeonpeawere taken up for study,
evaluation, and for characterization for the present investigation in two different
environmental conditions (Environment I and Environment II). The entries consisted of
six genotypes of F6 generation with negligible segregation along with three national
checks BDN-2, JKM-189, ASHA and one local check BA-1, with two multi-resistant
(Wilt and SMD resistance) checks BSMR-736 and BSMR-853 and two highly
susceptible checks MARUTI for susceptibility to Sterility Mosaic Disease and ICP 2376
for susceptibility to FusariumWilt. The different mean data recorded of each genotype or
treatments along with the checks or control was subjected to statistical analysis for
variance, covariance, heritability, genetic advance, correlation and path analysis, to find
out the individual as well as the combined comparative effects of each treatment on each
other. The GCV & PCV were recorded highest for the character number of secondary
branches, final plant stands, 100 seed weight, initial plant stands, 100 seed weight, and
number of pods per plant in both the environmental conditions. In both the
environmental condition characters such as wilt incidences, final plant stands, number of
secondary branches, initial plant stands, and 100 seed weight were recorded to have high
heritability and high genetic advances which indicates that the selection would be
effective and that these characters have dominance of additive gene action in their
expression. highly significant and positive correlation (both phenotypic and genotypic
level) was found between the yield and the characters like number of primary branches,
number of secondary branches, number of pods per plant, final plant stands, number of
seeds per pod,100 seed weight and with harvest index also in Environment I it was
found that the a positive and highly significant correlation was observed between yield
and the characters such as initial plant stands, number of primary branches, number of
secondary branches, plant height number of pods per plant, final plant stands, pod size,
and 100 seed weight and with harvest index. The incidences of wilt were recorded to be
of higher magnitudes in Environment II (Wilt testing plot) than in the Environment-I
(field condition). Wilt incidences was found to be negatively and highly correlated with
the yield and directly affected the yield in both negative and positive direction. Whereas
the incidences of Sterility Mosaic Disease and Pod Borer were found to be nonsignificantly
correlated with the yield and had negligible indirect effect on the yield.
Expression of secondary branches was higher in case of genotypes BAUPP 19-6 also
having maximum number of primary branches under sick plot and genotype ICPL 87119
under natural condition. BA-1 was found to be the tallest among all the genotypes under
study in two different environments. The genotypes BAUPP19-6 had the highest number
of pods per plant under sick plot condition and best check was found to be BA-1 that had
the highest number of pods in both the environment. On the basis of the statistical
analysis and the comparison of the mean values of all the genotypes it was significantly
recognized that the genotype BAUPP19-6 had highest yield under in both the
environmental conditions followed by BAUPP19-4 and BAUPP19-3.
Description
EVALUATION OF ADVANCE BREEDING
MATERIALS OF PIGEONPEA [Cajanus
cajan(L.)Millsp.] FOR YIELD AND BIOTIC
STRESSES