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种子活力是由基因型所决定,但随环境因子改变而发生变化的一种生理特性。由于农业“周期性”生产的限制,种子从收获到播种总是要经过一段时间的贮藏。种子在贮藏期间,不论条件如何,其活力总是要产生一定程度的下降。为了解临播种子的活力,是否可以通过从了解发芽率的情况进而获得该种子活力的信息,或是否可通过室内、田间发芽情况来估测其种子活力,并将其结果用于指导生产实际,是本文研究要解决的中心问题。一、供试材料和研究方法试验材料是1986年生产的小麦绵阳11号和杂高18—47两个品种。通过2.5×2.0毫米孔筛选,并经
Seed vigor is a physiological characteristic that is determined by the genotype but changes as the environmental factor changes. Due to the “periodic” production of agriculture, the seed is always stored for some time from harvest to sowing. No matter what the conditions, the vitality of the seeds always has to drop to a certain extent during storage. In order to understand the vitality of seed progeny, we can obtain the information about the vitality of the seed by knowing the germination rate or whether the seed vigor can be estimated by indoor or field germination, and use the result to guide the actual production , Is the central problem to be solved in this paper. First, the test materials and research methods Test materials are produced in 1986 wheat Mianyang 11 and 18-18 two varieties. Screen through 2.5 x 2.0 mm wells and pass