VARIABILITY STUDIES IN TOMATO
KrishiKosh
View Archive InfoField | Value | |
Title |
VARIABILITY STUDIES IN TOMATO
|
|
Creator |
Kiran, M. Likhita
|
|
Contributor |
Mishra, H.N.
|
|
Subject |
VARIABILITY, TOMATO
|
|
Description |
The genetic parameter for 12 quantitative and qualitative characters were estimated in a set of germplasm (45 genotypes) at AICRP on vegetable crop, OUAT, Bhubaneswar following randomized block design with 3 replications during rabi 2013-2014 A wide range of variation for all the characters studied were observed among the genotypes. The genotypes BT-22-4-1 (V7), BT-442-2 (V1), BT-3 (V28), BT-17-2 (V18) and BT-437-1-2 (V2) are good yielders among the set of germplasm evaluated and are identified to be grown in Odisha conditions. Further phenotypes represented truly to genotype. High estimate of genotypic co-efficient of variation , heritability in broad sense and genetic advance were observed for the traits such as yield per plant, plant height , Number of fruits per plant , average fruit weight , number of bunches per plant, number of locules per fruit suggesting additive gene action for expression of these characters. So direct selection based on these characters will be more effective in improvement of tomato. Correlation studies depicted that strong inheritant association between yield per plant with number of bunches per plant, number of fruits per plant, average fruit weight, length of the fruit and girth of the fruit, plant height with number of primary branches per plant and TSS, number of primary branches per plant with number of fruits per bunch and number of fruits per plant, number of fruits per bunch with number of fruits per plant, average fruit weight with number of locules per fruit, length of fruit and girth of fruit and number of locules per fruit with girth of the fruit and length of the fruit with girth of the fruit are important correlated characters contributing towards fruit yield in tomato. Path analysis study showed that average fruit weight, number of fruits per plant, number of locules per plant, plant height, number of bunches per plant and length of the fruit have direct positive effect on fruit yield. By using D2statistics 45 genotypes were grouped into nine clusters out of which cluster III and cluster VI are more divergent consisting of seven and two number of genotypes and some valuable heterotic hybrids may be obtained by hybridization using the parents included in this two divergent clusters. Plant height contributed maximum towards genetic divergence followed by number of fruits per plant, average fruit weight and yield per plant. |
|
Date |
2017-01-03T12:06:50Z
2017-01-03T12:06:50Z 2014 |
|
Type |
Thesis
|
|
Identifier |
http://krishikosh.egranth.ac.in/handle/1/94123
|
|
Language |
en
|
|
Relation |
Th;4191
|
|
Format |
application/pdf
|
|