| 摘要: |
| 根据1980—1982三年的试验,提出了 DPC 对棉花生育的效应应分为基本效应和复合效应两类。主要的基本效应是抑制营养器官的生长;增加叶绿素含量,调整光合产物分配的方向与数量。提出了定量定位诱导基本效应的原则和经验参数,也提出了诱导复合效应的原则,以及从塑造理想株型、生育进程和田间结构,获得较佳的棉铃时空分布以夺得丰产的原理。结合我国棉花生产特点,提出了 DPC 的使用要领。正确使用 DPC,皮棉产量平均可增加12.5%左右。 |
| 关键词: 果枝 生育进程 光合产物分配 复合效应 田间结构 丰产栽培 叶绿素含量 理想株型 基本效应 棉花 |
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| THE KEY TO GET GOOD YIELD OF COTTON BY INDUCING THE RESPONSE TO DPC TOWARDS A PLANNED DIRECTION AND IN PLANNED STRENGTH |
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| Abstract: |
| A new concept about the application of DPC on cotton was illustrated on the basis of a series of experiments held in 1980-1982.The responses to DPC were distinguished into two kinds,i.e.primary responses and integrate responses.Good yield might be obtained only when a more resonable model of single plants and better structure of population were produced under the influence of the chemical,so that an appropriate distribution of bolls on cotton plants in the field, both in terms of time and/or space,was forme... |
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