植物的适时断顶能够提高经济部分的产量或品质。 芝麻属于无限花序作物,在终花期前断顶均可产生优势性状。初花期以前(苗期)断顶,能促分枝,使其呈双茎或丛茎型;初花期断顶,能引发顶部分杈等,呈杈顶型或棍棒型;初花期以后断顶,能促进粒重的提高,植株呈秃顶型。河南省是夏芝麻产区,正 The timely breaking of plants can increase the yield or quality of the economy. Sesame is an inflorescence inflorescence crop, which can produce dominant traits before the final flowering. Before the first flowering (seedling) off the top, can promote the branches, so that it was double stems or tufts; first flowering off the top, can cause the top of the branches and other branches, was twig-top or stick-type; , Can promote the improvement of grain weight, plant was bald type. Henan Province is the summer sesame production area, is