Genetic variability estimates in Indian jujube (Ziziphus mauritiana) under semi-arid conditions of Rajasthan

H D CHOUDHARY, O P GARHWAL, M R CHOUDHARY

Abstract


A study was conducted to analyse the genetic variability for different characters using 20 diverse genotypes of Indian jujube or ber (Ziziphus mauritiana Lamk.) during 2014-15 and 2015-16 under semi-arid conditions of Rajasthan. The study comprised 14 year old trees of diverse genotypes of ber, viz. Saphar Chandni, Gola, Tikadi, Phalisa Alwari, Thornless, Katha, Katha Bombay, Tabes Taso, Meharun, Dharkhi, Lakhan, Ilaichi, Pathani, Chhuhara, Nazuk, Kheera, ZG-3, Kathaphal, Sukhawani and Ashapuri-2 planted at Asalpur Farm, Department of Horticulture, SKN College of Agriculture, Jobner, Jaipur, Rajasthan in RBD replicated thrice. Analysis of variance revealed that there are highly significant difference among the 20 genotypes tested for all characters studied indicating the presence of variability. The PCV value was relatively greater than GCV for all traits. High GCV along with high heritability and genetic advance as percent of mean was found in fruit weight, volume of fruit, pulp weight, pulp: stone ratio, total acidity, ascorbic acid, TSS: acid ratio and fruit yield/ tree therefore, these characters may be of great importance to a breeder in selecting a desirable genotype.

Keywords


Genetic advance, Genetic variability, Heritability, Indian jujube,

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