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我场1977年晚造繁殖广陆银不育系74亩,平均亩产220斤,其中1.57亩试验田,平均亩产331.4斤。一、技术措施 1.土地的选择选择阳光充足,排灌方便,自然隔离条件好的沙质壤土垌面田,连片单一繁殖广陆银。 2.父母本播插期的安排不育系7月12日播,7月28日插秧,秧令16天。保持系分两期播种、两期插秧,秧令15天,第一期7月17日播,8月1日插;第二期7月22日播,8月6日插。父本花粉期延续十天以上,有助于提高不育系的异交结实率。
My field of breeding 1977 made a wide silver sterility silver 74 acres, an average of 220 kg per mu, of which 1.57 mu of experimental field, the average yield 331.4 kg. First, the technical measures 1. The choice of land Choose sunny, convenient irrigation and drainage, natural isolation conditions are good sandy loam mound noodles, contiguous single breeding Broadland silver. 2. The arrangement of parents during the broadcast sterile CMS broadcast on July 12, July 28 transplanting, seedlings make 16 days. Maintained in two phases of seeding, two transplanting, seedlings so that 15 days, the first phase of broadcast on July 17, August 1 inserted; second on July 22 broadcast, August 6 plug. The pollen period of male parent continued for more than ten days, which helps to improve the outcrossing rate of male sterile lines.