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Determination of genetic diversity in onion (Allium cepa L) by multivariate analysis under long day conditions

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Title Determination of genetic diversity in onion (Allium cepa L) by multivariate analysis under long day conditions
Not Available
 
Creator S R SINGH
N AHMED
S LAL
S A GANIE
A MUDASIR
J NUSARAT
A AMIN
 
Subject Genetic divergence
multivariate analysis
hybridization
principal
component
analysis
 
Description Not Available
The present investigation was conducted on thirty eight accessions of onion at the experimental farm
of Central Institute of temperate Horticulture to study the variability and their interrelationship and
divergence pattern based on quantitative and qualitative traits during 2009 to 2011. Multivariate analysis
was used to classify 38 long day onion accessions. All accessions were grouped into six different
clusters. The highest inter cluster distance was observed between IV and V and lowest between II and
VI. Based on cluster means the important cluster was I for plant height and percent marketable bulbs
cluster IV for mean yield, total yield and equatorial diameter and cluster III for the number of leaves,
collar thickness and average bulb weight. Accordingly, parents could be selected for hybridization.
Principal component analysis, first two principal component accessions accounted for 59.29% of the
variance among 38 accessions. The greater part of the variance was accounted for other traits such as
plant height, collar thickness, percent marketable bulb yield, polar diameter of the bulb and neck
thickness. The high diversity found in the accessions showed its great potential for improving
qualitative as well as quantitative traits in long day onion.
Not Available
 
Date 2021-08-26T09:06:16Z
2021-08-26T09:06:16Z
2013-01-01
 
Type Research Paper
 
Identifier Not Available
1991-637X
http://krishi.icar.gov.in/jspui/handle/123456789/60796
 
Language English
 
Relation Not Available;
 
Publisher Academic Journals