1. About the topping of the gourd: topping of the gourd is also called topping, that is, pinching off the top of the main vine, how long it is, and pinching off the part that does not protrude. The topping of the gourd is only used for the main vine, and the main vine will send out side branches after topping. The side branch on the main vine is called the auxiliary vine, which is the son of the main vine. The auxiliary vine is easier to set fruit than the main vine. The side branch of vine regeneration is called Sun Man, which is easy to bear fruit, and almost every female flower can bear fruit. Therefore, a small waisted gourd bears fruit with sun man, which is the central intention of gourd topping. If it is a gourd variety, it is enough to have vines hanging fruit. After all, the burden of a seedling is limited.

2, only flowering without fruit: the main vine has few female flowers and it is difficult to bear fruit. It's a gourd. It behaves differently, but it just goes back to the top.

3. Pollination: The male flower of the gourd is several times that of the female flower. Pick a male flower as soon as possible, take off the petals and rub the flower heart on the stamen of the female flower a few times. If it's a gourd, as long as there is a sun vine, it doesn't need pollination.