玉米生产上3个主推品种光合特性、干物质积累转运及灌浆特性

徐田军, 吕天放, 赵久然, 王荣焕, 陈传永, 刘月娥, 刘秀芝, 王元东, 刘春阁

Photosynthetic Characteristics, Dry Matter Accumulation and Translocation, Grain Filling Parameter of Three Main Maize Varieties in Production

Tian-Jun XU, Tian-Fang LYU, Jiu-Ran ZHAO, Rong-Huan WANG, Chuan-Yong CHEN, Yue-E LIU, Xiu-Zhi LIU, Yuan-Dong WANG, Chun-Ge LIU

表3 参试品种的花后干物质积累、分配及转运

Table 3 Accumulation and transportation of dry matter after silking of the tested varieties

干物质积累、分配及转运 Dry matter accumulation and transportation 郑单958 Zhengdan 958 先玉335 Xianyu 335 京科968 Jingke 968 花后干物质积累量 Dry matter accumulation after silking (kg hm-2) 8285.50 c 9608.00 b 10926.30 a 干物质转运量 Transfer amount of dry matter (kg hm-2) 2629.70 c 3036.70 b 3680.50 a 干物质转运率 Transfer rate of dry matter (%) 27.37 c 30.50 b 32.43 a 干物质转运对籽粒的贡献率 Contribution to grain of dry matter transportation (%) 26.87 b 28.32 a 29.67 a 收获指数 Harvest index 0.55 a 0.55 a 0.56 a