Title
Name of the student
Guide
Degree
Year
Key words
:
:
:
:
:
:
Survey and screening of Ambri in Kashmir
Irfan Ahmad Bisati
Prof. K.D. Farooqui
Ph.D
2012
Ambri, mahalanobis, parents, hybridization
ABSTRACT
The present investigation entitled “Survey and screening of Ambri in Kashmir” was
carried out in order to survey available germplasm and to obtain information on the magnitude of
variability of several morphological and horticultural traits; predict heritability and genetic
advance and estimate divergence. The survey was conducted in three districts of Kashmir valley
namely Shopian, Pulwama and Budgam wherein forty genotypes of Ambri were covered in the
course of survey and screening (UPOV).Wide variability in various descriptive and quantitative
characteristics was recorded in the genotypes under study.
Analysis of variance revealed presence of significant variability among the genotypes for
all the traits. G x E interaction was also significant. Heritability estimates were high for all the
traits. High heritability along with maximum genetic gain (% of mean) was recorded for yield
tree-1.Length breadth ratio, fruit size and TSS showed positive significant association with yield .
Path analysis revealed that maximum positive direct contribution to yield came from length
breadth ratio. Significant positive in direct contribution came from all the traits except length
breadth ratio.
Analysis of divergence, in forty Ambri genotypes using Mahalanobis D2 statistics revealed high
significance, while these genotypes got grouped into five clusters in pooled analysis. Inter cluster
distance was maximum between cluster I- and-III in pooled analysis. The maximum contribution to
divergence came from yield tree-1 followed by acidity. The existing diversity in Ambri can be gain
fully exploited either by the way of direct selection of individual genotypes or as prospective parents
in hybridization programme, in light of high magnitude of genetic advance and heritability (b.s.) in
various traits of horticultural interest. Of the forty genotypes screened, two genotypes have been
found excellent in terms of quality and yield in addition to other positive features.