我省为水稻主产区,早稻也是夏季粮食主要作物,是农民夏收主要经济来源之一。目前早稻空秕粒偏高已成为制约其产量、品质的主要因素。空秕粒是水稻不能正常发育的总称,包括空壳和秕粒。空壳是雌雄性器官发育不良及其他原因形成的;秕粒是颖花已授精,但子房胚乳中途停止发育而形成的半饱谷粒。一般正常年份空壳率在7.6%左右。 The province is the main paddy producing area, and early rice is also the main grain crop in summer and one of the major economic sources for summer harvest of farmers. At present, the high rice grain size in early rice has become a major factor that restricts its yield and quality. Kongjiao grain is a general term that rice can not develop normally, including shell and grain. Empty shell is the male and female organ dysplasia and other causes of formation; 秕 grain is spikelets have been fertilized, but the ovary endosperm stopped developing half-grain formation. The average normal shell rate of about 7.6%.