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对国审小麦品种济麦22号进行生物学栽培试验,采用顺序排列、2次重复试验设计.结果表明:①播期在越冬以前≥0℃积温为558.4～712.1℃,为最佳播种期;②各叶龄期的出叶速度是倒1～4叶需9.6d,冬前叶为5.6d,越冬期为34.7d;③10月1日前播种的在越冬期前出现分蘖高峰;④早播的穗分化时间早,穗分化的历期长,利于大穗形成;⑤从干物质积累看,10月1日之前播种均高于其他各期,平均为1 556.9kg/667m2;⑥灌浆速度以9月24日至10月8日播种的为高,千粒质量高.在本试验条件下,济麦22号在9月下旬—10月中旬播种,因苗管理,可获得理想产量.
The results showed as follows: ①The sowing date≥0 ℃ accumulated temperature was 558.4 ~ 712.1 ℃, which was the best sowing date before sowing the winter; (2) leaf speed of each leaf age is 1 to 4 leaves down 9.6d, before the winter leaves 5.6d, overwintering period of 34.7d; ③ October 1 before sowing tillering peak before winter; ④ early sowing Spike differentiation time was earlier and spike differentiation period was longer, which was benefit to the formation of big spike. (5) From dry matter accumulation, the sowing date before October 1 was higher than that of other stages, with an average of 1 556.9kg / 667m2; Seeds were planted from January 24 to October 8 with high quality and grain quality of 1000. Under the test conditions, Jimai 22 was planted in late September-mid-October, due to the seedling management, and the ideal yield could be obtained.