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四、分蘖力和干物质积累1.分蘖力小麦的分蘖力强弱,是鉴定抗旱牲的重要特性之一。根据1979年观察,旱地品种小红芒麦和小红麦分蘖数较多,水地品种河套三号种在旱地上根本没有分蘖。小红芒麦平均单株分蘖数1.42个,其中第一分蘖占55.9%,第二分蘖占29.4%,第三分蘖占8.8%,第四分蘖占5.9%;平均单株有效分蘖1.42个,占总分蘖的79.4%,其中第一分蘖占59.3%,第二分蘖占25.9%,第三分蘖占7.4%,第四分蘖占
Fourth, tillering and dry matter accumulation 1 tillering ability of tillering wheat is one of the important characteristics of identification of drought-resistant animals. According to the observation in 1979, the dry land cultivars Little Red Siberifer and Triticum aestivum have more tillers, and the Hetao No.3 variety has no tiller on dry land. The average number of tillers per plant was 1.42, of which the first tiller accounted for 55.9%, the second tiller accounted for 29.4%, the third tiller accounted for 8.8% and the fourth tiller accounted for 5.9%; the average effective tiller number per plant was 1.42, accounting for 79.4% of the total tillers, of which the first tiller accounted for 59.3%, the second tiller accounted for 25.9%, the third tiller accounted for 7.4%, the fourth tiller accounted