Genetical and Physiological Basis of Plant Type Model of Erect and Large Panicle Japonica Super Rice

来源 :Agricultural Sciences in China | 被引量 : 0次 | 上传用户:you2245g
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The historical changes in rice yields across China were explored. The physiological mechanisms and genetic basis of the erect and large panicle super-high-yield plant type model for breeding japonica super rice were analyzed mainly on the panicle type, number of large vascular bundles (LVB) in the panicle neck, and the panicle type index (PTI). In the production point of view, we suggested that, for the breeding of super-high-yield japonica rice, the erect panicle types with more LVB numbers in the panicle neck and superior upper grains in the secondary branches would be the key factors. The information has potential significance in the rice breeding and productivity not only in China but also throughout the rice production areas of the world. The historical changes in rice yields across China were explored. The physiological mechanisms and genetic basis of the erect and large panicle super-high-yield plant type model for breeding japonica super rice were analyzed mainly on the panicle type, number of large vascular bundles ( LVB) in the panicle neck, and the panicle type index (PTI). In the production point of view, we suggested that, for the breeding of super-high-yield japonica rice, the erect panicle types with more LVB numbers in the panicle neck and superior upper grains in the secondary branches would be the key factors. The information has potential significance in the rice breeding and productivity not only in China but also throughout the rice production areas of the world.
其他文献
正常生理状态下,脊柱在矢状面上呈现为“S”形,上承头颅、下连骨盆,有颈、胸、腰、骶四个生理弯曲.腰椎生理性前凸不仅能增加脊柱的缓冲震荡能力,对负重及维持腰部及骨盆稳定性也甚为重要,是人体脊柱维持姿势的关键结构之一.目前对腰椎生理性前凸临床功能的认识也越来越深入,腰椎前凸在维持脊柱矢状位平衡方面具有非常重要的作用,也是所有手术治疗矫正腰椎脊柱畸形的终极目标[1-4].腰椎前凸角度的改变是腰椎疾病和腰
期刊
@@
4月20日,2011年山西省煤炭工作会议在太原召开。山西省委副书记、省长王君作重要讲话,省人大常委会副主任、省总工会主席郭海亮,省政协常务副主席郭良孝等出席会议。山西省副
期刊
由山西省煤炭工业厅、山西煤矿安全监察局、山西省煤炭工业协会共同主办的“第十届(2011)太原煤炭工业技术装备展览会”于4月22日在太原隆重举办。山西省人民政府副省长任润
期刊
期刊
期刊
煤炭(含焦炭)价格回顾及趋势判断rn价格回顾rn动力煤价格截至4月中旬,国内生产地、中转地、消费地动力煤价格均有一定涨幅,其中生产地和消费地涨幅高于中转地;澳大利亚BJ动力
期刊
期刊