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Genetic variability and multivariate analysis in tall coconut germplasms

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Title Genetic variability and multivariate analysis in tall coconut germplasms
Not Available
 
Creator Subramanian, A.
Nirmal Raj, R.
Maheswarappa, H.P.
Shoba, N.
 
Subject genetic variability
heritability
genetic advance
correlation
cluster analysis
 
Description Not Available
Coconut is a perennial plantation crop grown extensively throughout the tropics and sub-tropics.
Exploitation of available genetic variability forms the primary step in any crop improvement program. In
this study, 18 Tall coconut germplasms, comprising of 12 exotic and six indigenous populations
maintained under AICRP on Palms – Crop Improvement trials at Coconut Research Station, TNAU,
Aliyar Nagar were used. The experiments were laid in randomized block design with two replications.
Observations were recorded on seven morphological traits viz., palm height, palm girth, leaf length,
petiole length, leaflet length, leaflet breadth and nut yield per palm per year for three years (from 2014 –
15, to 2016 – 2017). Analysis of the data revealed that the accession Seychelles recorded statistically
significant mean value for nut yield. High heritability and genetic advance was recorded for nut yield
indicating additive genetic control of the trait. In correlation studies, out of the six yield contributing
traits, none showed significant correlation with nut yield. A total of three principal component axes
explained the total variability. Cluster analysis showed that it would be advantageous to utilize the
coconut genotypes in cluster I (Java, Federated Malay States), Cluster IV (Seychelles) and cluster V
(Nadora Tall) in breeding programmes.
Not Available
 
Date 2019-11-06T06:58:46Z
2019-11-06T06:58:46Z
2019-01-01
 
Type Article
 
Identifier Journal of Pharmacognosy and Phytochemistry 2019; 8(3): 1949-1953
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/24472
 
Language English
 
Relation Not Available;
 
Publisher Not Available