杂交稻种子质量四大指标中最主要的为纯度,直接影响杂种优势的体现,保证种子纯度是确保杂交水稻能增产、增效的重要举措。 一、严把亲本种源关 引用高纯度的亲本是确保生产出优质杂交种子的前提,亲本纯度与杂交种子度成正相关。在由种子公司发放给制种户时尽量减少不必要的环节,避免造成人为混杂。 The four major indicators of hybrid rice seed quality of the most important for the purity, directly affect the embodiment of heterosis, to ensure the purity of the seed is to ensure that hybrid rice can increase yield and efficiency of an important measure. First, strict reference to the parent source High purity of the parent reference is to ensure the production of high-quality hybrid seeds on the premise that the parental purity and degree of hybridization is a positive correlation. Try to reduce unnecessary links when seed companies issue seeds to the seed companies to avoid any confusion.