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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jan 2019, 40 (1)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Assessment of genetic divergence of mango genotypes using multivariate techniques

 

Paper received: 09.06.2017 Revised received: 13.01.2018 Re-revised received: 22.04.2018 Accepted: 02.06.2018

 

Authors Info

S. Lal1*, S.K. Singh2,

A.K. Singh3 and N.K. Singh4 

 

1ICAR-Central Institute of Temperate

Horticulture, Srinagar-191 134, India

 

2Division of Fruits and Horticultural

Technology, ICAR-Indian Agricultural

Research Institute,

New Delhi-110 012, India

 

3Horticultural Sciences, ICAR,

New Delhi-110 012, India

 

4ICAR-National Research Centre

on Plant Biotechnology,

New Delhi-110 012, India

 

 

*Corresponding Author Email :

shivcith@gmail.com

 

 

Abstract

Aim: The study was carried out to assess the overall genetic variability of 60 mango (Mangifera indica) genotypes for important fruit quality and yield characteristics to select better parents for mango breeding programme.  

 

Methodology: A total of 17 variables were scored and subjected to multivariate analysis. ANOVA, descriptive statistics, cluster analysis and principal component analysis were used to investigate variability among the genotypes for the selected traits.

 

Results: Significant phenotypic variability was observed for studied traits. Cluster analysis classified all genotypes into two major groups according to shared similarity. Principal component analysis revealed that traits like fruit weight, fruit diameter, pulp content and pulp: stone ratio contributed positively, while fruit shape index, TSS:acid ratio, stone and peel traits contributed negatively for a large proportion of the observed variability.

 

Interpretation: Pusa Arunima, Pusa Shresth, Pusa Lalima, Mallika, Ramkela, Amrapali, Extreema, Neelum, Gulab Jamun, S.B. Alibagh, Tommy Atkins, Primor-de-Amoreira genotypes were found unique for fruit and yield attributing traits, thus making them potential donor parent for fruit weight, fruit color, fruit diameter, fruit shape, pulp and pulp: stone traits in mango hybridization programme.

 

Key words: Genetic divergence, Mango genotypes, Multivariate analysis, Techniques

 

 

 

 

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