按照nature communications期刊的语言标准润色下面的话：Recent works find that heat exposure during flowering ±7 days around silking stage maize shown to decrease grain number grain size and final grain yield

Recent studies have revealed that heat exposure during the flowering stage, which occurs approximately 7 days before and after silking in maize, has been found to lead to a reduction in grain number, grain size, and ultimately the final grain yield.