Pinching of male buds before anthesis in the female parents of cucurbitaceous vegetables was 1^st suggested by

Pinching of male buds before anthesis in the female parents of cucurbitaceous vegetables was 1^st suggested by Choudhary and Singh.
F1 hybrid production in Cucurbitaceae can economically be done on large scale by pinching all the male flowers before opening from the female parent and the male parent is allowed to grow side alongside the side of a female parent for natural cross-pollination in isolation.
One row of the male parent can be sown after every three rows of the female parent as suggested by Chaudhary and Singh, in 1971 for producing F1 hybrid seeds.