杂交水稻2025，Vol.40Issue(4)：15-25,11.DOI:10.16267/j.cnki.1005-3956.20241219.292
超级早稻叶片腹、背面光合特性研究
Adaxial and Abaxial Photosynthetic Characteristics of Leaves in Super Early Rice
摘要
Abstract
A self-developed rice measurement system for adaxial and abaxial photosynthesis was used to study the differences in photosynthetic characteristics and photosynthate distribution between the adaxial and adaxial surfaces of the leaves of super early rice.The results showed that there were significant differences in the net photosynthetic rate,transpiration rate and water utilization efficiency between the adaxial and abaxial surfaces of the leaves of four super early rice varieties.Two inbred rice varieties had the net photosynthetic rate of the adaxial surface higher than that of the abaxial surface,while two hybrid rice varieties had the net photosynthetic rate of the abaxial surface higher than that of the adaxial surface.The difference in photosynthetic efficiency between the adaxial and abaxial surfaces decreased as the photosynthetic photon flux density increased.The differences in photosynthetic characteristics between the adaxial and abaxial surfaces of rice leaves were significantly affected by stomatal density and leaf thickness.The abaxial surface with a higher stomata density and stronger photosynthetic potential showed a larger contribution to the photosynthetic efficiency of the whole leaf.In rice breeding,more attention should be paid to optimizing the light environment of the abaxial surface and enhancing the photosynthetic capacity of the abaxial surface,thus improving the photosynthetic efficiency of the rice population and achieving higher yields.关键词
光合作用/叶片腹面/叶片背面/超级稻/早稻Key words
photosynthesis/adaxial surface of a leaf/abaxial surface of a leaf/super rice/early rice分类
农业科技引用本文复制引用
粟琳,石丹丹,宁文,纪美娜,吴仪,陆筱,欧阳翔,常硕其..超级早稻叶片腹、背面光合特性研究[J].杂交水稻,2025,40(4):15-25,11.基金项目
国家自然科学基金项目(31871704) （31871704）
湖南省揭榜挂帅项目(2022NK1010) （2022NK1010）
长沙市自然科学基金项目(Kq2402171) （Kq2402171）
杂交水稻全国重点实验室自主研究项目(2022MS11) （2022MS11）
