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为给不同筋型小麦高产种植筛选适宜的播期,以强筋小麦品种济麦20和中筋小麦品种中麦8号为试验材料,采用盆栽方法,研究了播期对两种筋型小麦旗叶光合及籽粒灌浆特性的影响。结果表明,不同播期下济麦20和中麦8号的旗叶光合和籽粒灌浆特性不尽相同。适期播种(10月7日)有利于改善济麦20旗叶光合和籽粒灌浆特性;而早播(9月30日)有利于改善中麦8号旗叶光合和籽粒灌浆特性。不同播期下,济麦20和中麦8号籽粒灌浆进程均符合Logistic方程。在本试验条件下,综合来看,济麦20以10月7日播种最优,而中麦8号以9月30日播种最优。
In order to select suitable sowing dates for high-yielding cultivation of different gluten wheat varieties, the strong gluten wheat cultivar Jimai 20 and the middle gluten wheat cultivar Zhongmai 8 were used as experimental materials to study the effects of sowing date on two kinds of wheat flag leaf Photosynthesis and Grain Filling Characteristics. The results showed that under different sowing dates, the flag leaf photosynthesis and grain filling characteristics of Jimai 20 and Zhongmai 8 were different. Appropriate seeding (Oct. 7) was beneficial to improve flag leaf photosynthesis and grain-filling characteristics of Jimai 20; and early sowing (Sept. 30) was beneficial to improve photosynthesis and grain-filling characteristics of Zhongmai No.8 flag leaf. Under different sowing dates, the grain filling process of Jimai 20 and Zhongmai 8 all accorded with Logistic equation. Under the experimental conditions, on the whole, Jimai 20 sowed the best on October 7, while Zhongmai 8 sowed the best on September 30.