将10份不同类型的粳稻材料在浙江杭州(杭)和海南陵水(琼)两地种植,比较结果表明,其主要农艺性状在两地间表现明显不同。除播抽历期外,参试性状杭琼间表型相关程度显著。可见在粳稻育种南繁加代时,对株高、剑叶长、主穗总粒数、结实率等性状应加强选择压,但对生育期选择,切忌简单化。 Ten different varieties of japonica rice were planted in Hangzhou, Zhejiang Province and Lingshui, Hainan Province. The results showed that the main agronomic traits of the two varieties were significantly different between the two places. In addition to the broadcast duration, the phenotypic correlation between Hangqiong and Qiongxiong was significant. It can be seen that when the japonica rice breeding Nanbanjia was replaced, the selection pressure should be strengthened for the traits of plant height, flag leaf length, total grain number of main ear, seed setting rate, etc., but the selection should not be simplified during the growth period.