Signs of incomplete pollination in cucurbits included bottlenecked fruit or fruit with a pinched end, crooked or lopsided fruit, fruit small in size or nub-like; and fruits with prominent lobes or that are triangular in shape. Causes of incomplete pollination may be inadequate pollen transfer by pollinating insects; inadequate pollen sources (pollenizers); or hot, dry weather that reduces pollen viability or that desiccates flower parts druing pollination. Research has shown that a minimum of 1,000 grains of pollen are required to be distributed over the three lobes of the stigma of the female flower distributed over the three lobes of the stigma of the female flower of the watermelon to produce a uniformly shaped fruit.
We’ve noticed some of our yukon gold potatoes have “hollow heart”. Basically this is an air pocket in the cavity of the tuber. Most of the time it is nothing more than that and you can use the potato per usual. This occurs during rapid growth after a chilling period. We had a late freeze this year followed by an unseasonably warm spring.