众多非生物的和生物的逆境导致高粱的减产。所谓产量稳定性亦即各种逆境因子对一个栽培品种产量的影响尚未达到显著的程度,或者这个品种产量受到的影响低于全部种植品种降低的平均值。减产因子主要包括土壤亏水热害、病害、虫害、养分缺乏和毒害,以及籽粒成熟过程中湿度过大等。 Numerous abiotic and biological adversities lead to the loss of sorghum. The so-called yield stability, that is, the effect of various adverse factors on the yield of a cultivated species has not yet reached a significant level, or the yield of this variety is affected less than the average decrease of all cultivated species. Yield reduction factors include soil water loss and heat damage, diseases, insect pests, nutrient deficiency and poisoning, as well as excessive moisture in the grain ripening process.