浙江育成和审定水稻品种分析(1980-2019)

Analysis of Rice Varieties Bred and Certified in Zhejiang Province,China(1980-2019)

浙江是水稻种植小省,但培育出众多大品种和骨干亲本,及时总结浙江的水稻育种经验和成果,有助于了解育种历史,对育种家选择亲本具有参考价值。基于VBA,编写程序,分析“中国水稻品种及其系谱数据库”中收录的浙江育成和审定水稻品种。1980-2019年,浙江省育成品种655个、审定品种514个,生产上大面积应用品种291个。分析发现审定品种的平均单产逐步提高,蒸煮食味品质有改善,外观品质的垩白度和透明度也有改进,白叶枯病抗性没有明显变化,稻瘟病抗性有所下降,但优于同期同稻区全国平均水平。

Plenty of leading varieties and backbone parents have been bred in Zhejiang Province,even though the rice planting area is relatively small compared to many other provinces in China.Summarizing the rice breeding experience and results in Zhejiang will not only help to understand the breeding history,but also have important reference values for breeders in selecting breeding parents.Based on the VBA programming,the algorithm is compiled to analyze the variety records for Zhejiang included in the Database for Chinese Rice Varieties and their Genealogy.From 1980 to 2019,655 rice varieties were bred in the province,among which 514 varieties were certified,and 291 varieties have been grown in large areas.Our analysis shows that the yield per unit area and the edibility quality,chalkiness and transparency of the certified varieties have been raised,while the resistance to bacterial leaf blight of rice has remained roughly the same,and the resistance to rice blast has been somewhat lowered but still higher than the average level of resistance to rice blast of nationally certified varieties in the same rice-growing area in the same time period.