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本文是系列论文水稻耐冷性研究的第二部分 ,从云南稻种资源芽期耐冷性鉴定、苗期耐冷性鉴定、孕穗开花期耐冷性鉴定3个方面系统地阐述了研究结果。早红谷、紫糯、攀农 1号、马登红谷、澜沧花糯、攀天阁黑谷、宁蒗托托谷和海排谷等是芽期强耐冷性资源 ,芽期耐冷性存在稻种类型间差异。黑选 5号、马登红谷、鲁甸黑谷、龙树红谷、七河大红谷、凤仪小白谷、小白谷、背子糯和细黄糯等是苗期耐冷性极强资源。黑选 5号、海排谷、勐谢早红谷、石屏冷水谷、丽江新团黑谷、永宁小灰谷、昆明小白谷、半节芒、合系 10号和云冷 3 2等是孕穗开花期耐冷性资源。马登红谷等具有芽期和苗期耐冷性 ,澜沧花糯和攀天阁黑谷等具有芽期和孕穗开花期耐冷性 ,凤仪小白谷和龙树红谷等资源具有苗期和孕穗开花期耐冷性
This article is the second part of a series of papers on cold tolerance in rice. The results of the study are systematically expounded from three aspects of cold tolerance identification, cold tolerance identification at seedling stage and cold tolerance identification at flowering stage in Yunnan rice germplasm. Early Red Valley, Purple Glory, Pannong No. 1, Madden Red Valley, Lancang Hua Nuo, Pan Valley Black Valley, Ninglang toto Valley and the sea valley and so is the strong cold-resistant bud at the bud stage, the existence of cold tolerance at the bud Differences between species types. Black election No. 5, Madden red valley, Ludian black valley, Longshuhong valley, seven river red valley, Fengye small white valley, small white valley, the back of the waxy and fine yellow waxy is extremely cold tolerance seedling resources. Black election No. 5, the sea row of valley, Meng Xie Zaohong Valley, stone screen Lengshuigu, Lijiang New Mission Black Valley, Yongning small ash Valley, Kunming Little White Valley, half section of Mount, Department of co-10 and cloud cold 3 2 is booting flowering Period of cold tolerance resources. Madden red valley and other germplasm and seedling with cold tolerance, Lancang Hua Nuo and Pantenggei Valley have the bud and booting flowering cold tolerance, Fungi Xiaobayaigu and Longshuhonggu and other resources with seedling and booting flowering Cold-tolerance