Culture methods to reduce the occurrence of the bottle-gourd-shaped fruits in the greenhouse of fall-cropped cucumber plants [Cucumis sativus]
2007
Hirama, N.(Tohoku Seed Co. Ltd., Utsunomiya (Japan)) | Mizusawa, H. | Azuhata, F. | Matsuura, S.
When cucumber plants are grown in a greenhouse kept at 25 deg C with 40% RH in the forenoon to improve working environment, the occurrence of bottle-gourd-shaped fruits increased. We tried some cultural management practices to decrease the occurrence of such fruits. As a result, removing several first lateral branches after their cucumber fruits were harvested reduced the proportion of bottle-gourd-shaped fruits induced by rising soil temperature. Pinching the alternate lateral branches of the 11, 13 and 15th node on the main stem improved the number of fruiting nodes and prevented a decrease in the number of harvested fruits. Treatment with 0.l% potassium sulfate solution also decreased the proportion of bottle-gourd-shaped fruits, and increased the proportion of marketable cucumbers.
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