Genetic divergence in khirni (Manilkara hexandra) under semi- arid ecosystem of western India

SANJAY SINGH; A K SINGH; V V APP RAO; R BHARGAVA

doi:10.56093/ijas.v87i3.68705

Authors

SANJAY SINGH ICAR–Central Institute of Arid Horticulture Vejalpur, Godhra, Panchmahals, Gujarat 389 340
A K SINGH ICAR–Central Institute of Arid Horticulture Vejalpur, Godhra, Panchmahals, Gujarat 389 340
V V APP RAO ICAR–Central Institute of Arid Horticulture Vejalpur, Godhra, Panchmahals, Gujarat 389 340
R BHARGAVA ICAR–Central Institute of Arid Horticulture Vejalpur, Godhra, Panchmahals, Gujarat 389 340

https://doi.org/10.56093/ijas.v87i3.68705

Keywords:

Ecosystem, Genotypes, Pollen germination, Pollen viability

Abstract

The present study was undertaken to evaluate the performance of 30 genotypes of khirni [Manilkara hexandra (Roxb.) Dubard], at Experimental Farm of Central Horticultural Experiment Station (ICAR-CIAH), Vejalpur, Panchmahals (Godhra), Gujarat under rainfed hot semi-arid ecosystem of western India during 2011-14. The results of study revealed that the different genotypes of khirni exhibited considerable variation for vegetative, floral, yield and physicochemical characters. The vegetative growth in terms of plant height, rootstock girth, scion girth, plant spread (East-West) and plant spread (North-South) varied between 2.50-5.54 m, 30.12-53.45 cm, 26.12-44.42 cm, 2.10-5.10 m and 2.30-5.20 m, respectively. Number of leaves/shoot varied between 10.12-16.12. The period of flowering was recorded in November-December in all the genotypes. Pollen viability and pollen germination ranged from 84.23-94.86% and 15.00-23.56% respectively, being highest in CHESK-10. Fruit set per cluster ranged from 2.00 to 3.70 being highest in CHESK-10. Peak period of ripening in majority of the genotypes was recorded in May. Maximum fruit yield (10.10 kg/plant), fruit weight (5.20 g), pulp (87.50%), TSS (24.73° Brix), total sugar (17.80%) and carotene (6.80 mg/100 g) was recorded in CHESK-10. Based on the horticultural traits studied, the genotypes, CHESK-10, CHESK12, CHESK-15 and CHESK-4 were found to be promising under rainfed hot semi-arid conditions of western India. The genotype CHESK-10 was released as variety named as Thar Rituraj.

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