不育系的花粉育性是不育性状的主要标志。我们在多年的实践中观察到,不育系的花粉育性容易受环境条件尤其是温度的影响。1986年,我们进行了一组试验,以探讨杂交水稻不育系的花粉育性变化,及其这种变化与温度的关系。 一、材料和方法 (一)材料:选用本所提纯的七个高代不育系,即:V20A(野败型)、77ABA(栽野型)、75785A (野败型)、二九矮四号A(野败型)、691A(普野细胞质)、珍汕97A(野败型)、D汕A(Dissi细胞质)。 (二)方法:七个不育系为处理,分三批播,即重复三次。田间随机排列,栽培管理一致。 Pollen fertility of CMS lines is the main marker of CMS. We have observed in many years of practice that the pollen fertility of CMS lines is easily affected by environmental conditions, especially temperature. In 1986, we conducted a series of experiments to investigate changes in pollen fertility of the CMS lines and their relationship with temperature. First, the material and methods (A) Material: The selection of the seven high-generation sterile lines, namely: V20A (wild defeat type), 77ABA (planting wild type), 75785A No. A (Wild-type), 691A (Cape wild cytoplasm), Zhenshan 97A (wild-type), D Sha A (Dissi cytoplasm). (B) Method: seven sterile lines for processing, divided into three batches, that is, repeated three times. Random arrangement of the field, cultivation and management of the same.