Ecology, Environment and Conservation Paper

Vol 22, Dec 2016 Suppl. Issue; Page No.(241-246)

FRUITING BEHAVIOUR OF PROMISING GUAVA (PSIDIUM GUAJAVA L.) VARIETIES UNDER N-INDIAN CONDITIONS

Dharmendra Singh, M.I.S. Gill and N.K. Arora

Abstract

To recognize guava with promising traits, 13 varieties grafted on L-49 rootstock were evaluated for fruit physico-chemical and seed characters based on UPOV descriptors under N-Indian conditions. Amongst various varieties, the Punjab Pink was earliest to show mature fruits, i.e. on 10th November and variety Allahabad Safeda had maximum (386) number of fruits per tree obtained whereas, fruit weight (254.16 g) was obtained maximum in G. Bilas during winter season crop as compared to other varieties. The variety Pant Prabhat had maximum thickness of flesh (12.90 mm) whereas, variety Thailand guava recorded minimum seed core diameter (31.87 mm). Maximum mean TSS (12.42 %) was recorded in variety Hisar Surkha while minimum fruit acidity (0.255 %) was recorded in variety Thailand. Average vitamin C content among different guava varieties for winter season crop varied from 129.63 mg/100 g in variety Arka Amulya to 251.77 mg/100 g in variety L-49. The variety Allahabad Safeda showed least (1.390 g) seed weight per 100 g of fruit. Average hardness of seeds was recorded minimum (10.84 Kg/cm2) in variety Hisar Safeda. Amongst various varieties Allahabad Safeda, L-49, Arka Amulya and Hisar Safeda were white fleshed, while Punjab Pink, 17-16, Lalit, Pear Shaped and Hisar Surkha were pink fleshed.

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