水稻待测粳型亲籼系的亲籼性鉴定

目的]选育粳型亲籼系。方法]选用6个籼稻、6个粳稻和6个广亲和测验种，以F，代花粉育性和小穗育性为指标，测定了5个待测粳型亲籼系的亲籼性。结果]待测粳型亲籼系G2123、G2417、G2410和G3005亲籼、不亲粳，为特异亲籼系；G2615不亲籼，也不亲粳，为不亲和系。同时探讨了粳型亲籼系亲籼性测定时的测验种、育性指标、花粉育性和小穗育性的测定方法，分析了G2417高亲籼性的原因。结论]G2417自交结实率（小穗育性）95．1％，与6个籼稻测验种杂交的F，代平均结实率（小穗育性）94．9％，是个亲籼性极好、综合性状优良的亲籼系。

Test on Indica-compatibility of Candidate Indica-compatible Japonica Lines in Rice

Objective] The aim was to breed the indica-compatible japonica lines (ICJL). Method] The indica-compatibility of 5 candidate ICJLs were tested based on the pollen fertility and spikelet fertility of F1 hybrids with 6 indica testers,6 japonica testers and 6 and middle testers. Result] Candidate ICJL G2123, G2417, G2410 and G3005 were grouped into the exceptionally indica-compatible lines based on their high indica-compatibility and low japonica-compatibility. Candidate ICJL G2615 was grouped into the non-...