贵州农业科学2025，Vol.53Issue(10)：7-15,9.DOI:10.3969/j.issn.1001-3601.2025.10.002
贵州省自育高产杂交籼稻新品种产量与品质差异研究
Study on Differences in Rice Yield and Quality of Self-bred and High-yield Hybrid Indica Rice Varieties in Guizhou
摘要
Abstract
[Objective]The differences in yield and quality of new self-bred and high-yield hybrid indica rice varieties were investigated to provide a reference basis for popularization and application of new rice varieties in Guizhou.[Method]The differences in yield,grain-filling characteristics,vascular bundle structure(number and cross-sectional area)and rice quality of Guang 8 You 35 and Taifengyou 79(two recently approved high-yield hybrid indica rice varieties),and Qianyou 35(CK)were analyzed under the same cultivation conditions.[Result]The yield of Taifengyou 79 and Guang 8 You 35 increased by 12.4%and 6.8%compared with Qianyou 35,respectively.The tiller number,ear-bearing tiller percentage and dry matter accumulation at heading stage of Taifengyou 79 and Guang 8 You 35 were significantly higher than CK.The great and small vascular bundle number,great and small vascular area,phloem area,and xylem area of Taifengyou 79 were significantly higher than CK.The ultimate growth,growth amount at maximum grain-filling rate,and maximum grain-filling rate of Taifengyou 79 and Guang 8 You 35 were lower than CK,but the active grain-filling period and linear grain-filling duration of Taifengyou 79 were longer than CK.The chalky grain percentage and chalkiness degree of Taifengyou 79 and Guang 8 You 35 were significantly lower than CK.The protein content,gel consistency,breakdown value and gelatinization temperature of Taifengyou 79 and Guang 8 You 35 were significantly higher than CK and the hot paste viscosity,final viscosity and breakdown value were significantly lower than CK.[Conclusion]Taifengyou 79 has the advantages of superior dry matter accumulation,larger vascular bundle area,longer active grain-filling period,higher yield and excellent rice quality,and Guang 8 You 35 has the advantages of stronger tillering capacity,low amylose content,high gel consistency and excellent cooking quality.关键词
泰丰优79/广8优35/黔优35/杂交籼稻/产量/稻米品质/灌浆特性/维管束结构特征Key words
Taifengyou 79/Guang 8 You 35/Qianyou 35/hybrid indica rice/yield/rice quality/grain-filling characteristics/vascular bundle structural characteristics分类
农业科技引用本文复制引用
徐海峰,蒋大勇,朱速松,唐会会,李祖军,宫彦龙,邓茹月,雷月,闫志强,张习春,龙武华..贵州省自育高产杂交籼稻新品种产量与品质差异研究[J].贵州农业科学,2025,53(10):7-15,9.基金项目
贵州省农业科学院青年基金项目"杂交稻父母本花时差异的生理基础研究"(黔农科一般基金[2025]39) （黔农科一般基金[2025]39）
中央引导地方资金项目"黔优35米粉专用稻复合型米粉开发应用与示范"(黔科合中引地[2023]014),"水稻育苗基质创新与技术集成应用与示范"(黔科合中引地[2023]017) （黔科合中引地[2023]014）
贵州省科技计划项目"水稻高效制种数字化及智能化关键技术研究"(黔科合支撑[2024]一般014) （黔科合支撑[2024]一般014）
黔南州科技计划项目"一体化全自动节能型米粉设备生产应用研究"(黔南科合[2022]19号) （黔南科合[2022]19号）
贵州省农业科学院"揭榜挂帅"项目(黔农科JBGS[2024]01号),(黔农科JBGS[2024]07号) （黔农科JBGS[2024]01号）
贵州省农业科学院种质资源项目"特色优质稻资源收集、保存与创制利用"(黔农科院[2023]11) （黔农科院[2023]11）
岑巩县2024年制种大县奖励资金项目-杂交水稻商业化育种平台项目 （）
