Flowering and Its Modification In Cucurbits

Authored by: Meenu Kumari , H.S. Singh , T.K. Behera

Handbook of Cucurbits

Print publication date:  February  2016
Online publication date:  February  2016

Print ISBN: 9781482234589
eBook ISBN: 9781482234596
Adobe ISBN:

10.1201/b19233-15

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Abstract

Flowering in cucurbits is a major enigma since the eighteenth century, and it encompasses a large variation from sex expression to floral biology. Cucurbits are unique among other vegetable crops for sex expression and its regulation, hence amenable for manipulation, not only for economic production of hybrid seeds but also for development of new fruit types and maintenance of gynoecious lines in cucumber, muskmelon, and bitter gourd. During the last five decades, numerous efforts have been made to understand the sex mechanism of cucurbits at endogenous and exogenous levels by various physiological and molecular experiments. Flowering in cucurbits normally starts from 40 to 45 days after sowing of seeds, although it depends on soil and weather conditions for availability of mineral nutrition and photoperiodic regulations. Cucurbitaceous vegetable crops differ in their flowering time, and details on its major crops are given in Table 10.1.

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