They are an all female variety, regularly watered, in a greenhouse with plenty of light. Door and window open every day. Started with lots of small cucumbers and only 3 have fully developed, the rest got no bigger than 2 - 3 inches then shivelled and turned yellow (from the flower end). Any suggestions as to what the problem is please ?
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Abortion on cucumbers and other cucurbitaceae is quite common.
This is a way for the plant to regulate its resources and prepare for optimal growth during the season. It might be a fertilizer issue. You may try to limit the growth of the plant by pinching out, to help it concentrate on its fruits.
It could also be a pollination issue, as suggested here by Bamboo. Why did my young cucumbers turn yellow and fall off?
J. Chomel
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Mine were the same, Every year, produces aprox. 3 or 4 per plant then following ones yellow shrivel and fall off. This year decided to try pinching out all side shoots resulting in one tall stem per plant, leaving one cucumber per leaf axil, lot more success, plants 6ft tall loads of cucumbers but now leaves yellowing and young cucumbers falling off, think mine may now be over watering problem as went away leaving leaky hose on 15 mins. per day, water standing in tray at base when I returned home, will cut down on watering and wait and see.
Cassie
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