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1979—1983年对春性宁麦3号和半冬性淮麦11号在亩产千斤和五百斤(对照)水平下,进行了籽粒发育和灌浆进程的研究。结果表明:(1)籽粒鲜重、长度、宽度和厚度的增长与开花后的天数呈二次曲线关系,其最大值分别在花后29天、26天、25天和28天;籽粒干重的增长与开花后的天数为三次曲线关系,宁麦3号和淮麦11号千斤产量,籽粒干重的最大值分别在花后37天和36天;籽粒含水百分率的变化则与开花后的天数呈极显著的负相关(r=-0.9751)。千斤田小麦比对照的具有灌浆持续时间长、强度大、千粒重高等特点。(2)小麦开花至成熟,节间、叶鞘、叶片等器官干物质的输出量,千斤田小麦的约占穗重36％,而对照的约占43％;抽穗后光合作用干物质积累多少与产量高低,在一定范围内呈极显著的正相关(r=0.9203)。
In 1979-1983, the study on grain development and grain filling of Chunnongningmai 3 and semi-winter Huaimai 11 were conducted under the conditions of one kilogram per mu and five hundred kilograms (control). The results showed that: (1) The fresh weight, length, width and thickness of the grain were quadratic curve with the number of days after flowering, the maximum values were 29 days, 26 days, 25 days and 28 days after anthesis; And the number of days after flowering were cubic curves. The maximum yield of dry weight of Ningmai 3 and Huaimei 11 were 37 days and 36 days after anthesis respectively. The variation of percentage of water content in grains was the same as that after flowering There was a very significant negative correlation between days (r = -0.9751). Thousands of wheat field than the control of a long duration of grouting, strength, grain weight and other characteristics. (2) The dry matter output from wheat to mature, internode, leaf sheath and leaves was about 36% of the weight of wheat in wheat field, and 43% in control. The accumulation of photosynthesis dry matter after heading High and low yield, within a certain range showed a significant positive correlation (r = 0.9203).