论文部分内容阅读
为了解小麦控株增穗栽培模式在源流库方面的特点,对5个品种的控株增穗栽培与常规栽培两种栽培模式进行了比较研究。结果表明,控株增穗栽培的单位面积穗数、收获指数以及产量均明显高于常规栽培;控株增穗栽培模式在产量形成期总叶面积系数稳定的前提下,通过缩小上三叶面积来增加单位面积穗数,使非叶光合面积增加,最终提高总的光合源,同时群体的总粒数和总维管束数也显著高于常规栽培,而且控株增穗栽培的分蘖急增速减特点突出。因此认为,控株增穗栽培在源、库、流方面较对照都有明显的优势。
In order to understand the characteristics of wheat-ear control ear-spinning mode in source flow library, two cultivation modes of ear-control cultivar and conventional cultivar of five varieties were comparatively studied. The results showed that panicle number per plant, harvest index and yield of control plant were significantly higher than those of conventional cultivation. The control plant by ear cultivation mode could reduce the area of the upper three leaves under the premise of total leaf area coefficient stable during the period of yield formation, To increase the number of panicles per unit area, increase the non-leaf photosynthetic area, and finally increase the total photosynthetic source. At the same time, the total number of grains and the total number of vascular bundles in the population were significantly higher than those in conventional cultivation. Less prominent features. Therefore, the control plant by ear cultivation in the source, reservoir, flow than the control has obvious advantages.