JOURNAL OF APPLIED HORTICULTURE
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Journal of Applied Horticulture. 1999: 1(2): 101-102

Physico-chemical characteristics of some ber varieties in relation to fruit fly incidence

Arora, P K; Nirmal Kaur; Batra, R C; Mehrotra, N K

Regional Fruit Research Station, Abohar 152116, India.

Physicochemical characteristics of fruits of eight ber (Ziziphus mauritiana) varieties, Chhuhara, Gola, Elaichi, Kaithli, Nazuk, Sanaur 2, Umran and ZG-2 in relation to fruit fly infestation were studied at Abohar. Fruit fly (Carpomya vesuviana) infestation was positively correlated with fruit weight, pulp-stone ratio, total soluble solids (TSS) and total sugars, whereas, it was negatively correlated to acidity, vitamin C [ascorbic acid] and total phenols. The varieties high in pulp content, TSS, total sugars, low acidity, vitamin C and total phenols were highly susceptible to fruit fly attack. The most resistance varieties were Umran (49% incidence), Gola (40%) and ZG-2 (33%).

 

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