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Position: Home > Articles > 2001-2015年浙江省常规早籼稻品种审定与推广现状 China Rice 2018 (4)

2001-2015年浙江省常规早籼稻品种审定与推广现状

作  者：
房玉伟;李荣德;陈孝赏;胡继杰;刘守坎
关键词：
浙江省;常规早籼稻;审定;推广面积;系谱关系
摘  要：
为了筛选近年来浙江省审定的优良常规早籼稻品种,指导常规早籼稻选育与推广应用,本文对2001-2015年三个阶段("十五"、"十一五"、"十二五")审定的65个常规早籼稻品种产量、抗性、米质、生育期、穗粒结构等进行对比分析,并整理了浙江省选育的列入农业部统计的常规早籼稻品种应用情况以及品种间的血缘关系等信息.结果表明,相比"十五"和"十一五","十二五"选育的品种株高增加,有效穗数减少,穗型变大、千粒重增加,结实率下降,生育期延迟;不同阶段审定品种稻瘟病抗性均有较佳表现;稻米品质特性发生较大变化,食用优质品种减少,专用加工型品种增加;2001-2015年有62个浙江省选育常规早籼稻列入农业部统计,累计推广面积达到921.5万hm2,嘉育253、舟903、浙辐802等骨干亲本在生产中发挥了重大作用;"十二五"浙江省常规早籼稻选育存在品种同质化严重、生育期偏长、推广面积较小等问题.本研究结果表明,只有创新种质资源、调整育种目标、加大推广力度,才能保持浙江省在全国常规早籼稻育种的领先地位.
作  者：
FANG Yuwei;LI Rongde;CHEN Xiaoshang;HU Jijie;LIU Shoukan;Taizhou Academy of Agricultural Sciences;National Agro-tech Extension and Service Center, Ministry of Agriculture;
单  位：
FANG Yuwei%LI Rongde%CHEN Xiaoshang%HU Jijie%LIU Shoukan%Taizhou Academy of Agricultural Sciences%National Agro-tech Extension and Service Center, Ministry of Agriculture
关键词：
Zhejiang province;;conventional early indica rice;;cultivar registration;;promotion areas;;genetic relationship
摘  要：
In order to screen the excellent conventional early indica rice varieties in Zhejiang province in recent years, guide the breeding and application of early indica rice. In this paper, the yield, resistance, rice quality, growth period, grain structure, promotion areas and genetic relationship of 65 conventional early indica rice varieties registered in Zhejiang province during 2001-2015 were compared and analyzed. The results showed that, the cultivars registered during the 12 th five year plan period showed a higher plant height, less effective panicles, bigger spike, increased 1 000-grain weight, decreased seed setting rate and delayed growth period com-pared to the cultivars registered in the 11 th and the 10 th five-year plan period. All cultivars registered in the three periods showed good resistance to rice blast disease. The number of high quality edible rice cultivars tend to decrease, while that of the processing cultivars tend to increase. The accumulative promoting areas of the 62 cultivars listed in the statistics of Ministry of Agriculture was9 215 khm2. The cultivars Jiayu 253, Zhou 903 and Zhefu 802 made important contribution to the production. The cultivars registered during the 12 th five-year plan period showed problems such as cultivar homogeneity, over-long growth period and small promotion ar-eas. In conclusion, to keep ahead in the conventional early indica rice breeding, Zhejiang province should make more efforts in the germplasm resources creation, continuously adjust breeding aim and increase cultivar popularization.

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