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Genetic divergence in mango varieties and possible use in breeding

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Title Genetic divergence in mango varieties and possible use in breeding
Not Available
 
Creator S Rajan, LP Yadava, Ram Kumar, SK Saxena
 
Subject Fruit, genetic divergence, heritability, mango, pulp, peel, stone, Tocher’s method, variance.
 
Description Not Available
Indian subcontinent is well known for rich genetic diversity in mango. Forty two important cultivars with potential
use in breeding programme were studied for heritability and divergence in fruit characters. Data on 14 quantitative
fruit traits were subjected to analysis of genotypic and phenotypic coefficient of variation, heritability, genetic
advance and clustering using D2
with group constellation following Tocher’s method. Weight of pulp, fruit, stone and
peel, pulp: stone ratio, length of fruit and stone had high genotypic coefficient of variation and heritability accompanied
with greater genetic advance as percent of mean indicating important role of these traits for selecting parents in
hybridization programme. Using group constellation, cultivars were grouped into three distinct clusters. Cultivar
with higher mean for weight of fruit and peel, fruit length, width and thickness of fruit and stone, fruit length and width
ratio (FLWR) and pulp: stone ratio were grouped in cluster III and high pulp weight and percent, TSS, weight, length
and width of stone were grouped in cluster II. Highest intra-cluster distance was observed in cluster I, while highest
inter-cluster distance was between cluster I and II. Pulp weight contributed maximum towards the genetic divergence
(34.03%) followed by peel weight (22.65%), TSS (10.22%) stone weight (7.90%) and width (5.46%). These fruit traits
may be considered for selecting promising parents.
Not Available
 
Date 2017-10-17T09:13:39Z
2017-10-17T09:13:39Z
2009-01-01
 
Type Research Paper
 
Identifier Not Available
Print ISSN : 0972-8538. Online ISSN : 0974-0112
http://krishi.icar.gov.in/jspui/handle/123456789/5541
 
Language English
 
Relation Not Available;
 
Publisher The Horticultural Society of India