Grapes are formed as a result of seed abortion. It has been observed that the number of mature small granule seeds is equal to that of large granule seeds, but the young material seeds are all in the young stage and are small and non-human. If there is a mature seed in the fruit, the fruit can be slightly larger; when there are 2 mature seeds, the fruit can grow into a medium size; when there are 3 mature seeds, it can develop into normal large particles. fruit. So, how to prevent grapes from producing small grains? 1 The management of fertilizer and water is strengthened during the flowering period to ensure that there are sufficient nutrients for the “critical period of fruit setting nutrition†and “critical period for seed development and nutrition†after flowering. 2 In the early flowering period to the full flowering period of the grape, spray 0.2% borax solution once every 7 days, spray 2-3 times, promote pollen tube germination and increase fertilization rate. 3 Strengthen summer cuts. From the beginning of flowering to the full flowering stage, the result of the branch was topping and removing all the lateral side shoots, leaving only one tip at the top, and then leaving 1-2 leaves for the tip of the top tip after 7 days. If it sprouts 2 times, it will be timely. Erase. 4 Artificial spike tip. 1/5-1/4 of spikes were removed 2-3 days before flowering. This measure has obvious effects on the rose and new rose varieties, with high spike rate and large spikes. China Agricultural Network Editor