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冬季温室栽培水稻花粉秧苗易发生大量的死苗,成活率不到移栽苗数的30%,影响花培育种工作。经过我们近两年来的努力,花培水稻秧苗的成活率已达到70%以上,解决了大量死苗问题。一、提高秧苗素质水稻秧苗的根发生于各茎节上的根原基。秧苗生长状况不良,根原基就会减少,而且变得细小,此外,环境条件也会影响根原基缺失。据国外研究报导,移栽时环境条件的剧变和种植时的损伤等,都会促使根原基缺失增多,因此必须从秧苗素质和移栽技术及栽培环境条件等方面去防止根原基的缺
Winter greenhouse rice cultivars pollen seedlings prone to a large number of dead seedlings, the survival rate of less than 30% of the number of transplanted seedlings, affecting the work of flower breeding. After our efforts over the past two years, the survival rate of flower-growing rice seedlings has reached more than 70%, which has solved the problem of large numbers of dead seedlings. First, improve the quality of seedlings Roots of rice seedlings occur in the root primordia on the stems. Poor seedling growth, root primordium will be reduced, and become small, in addition, environmental conditions will also affect the lack of root primordia. According to foreign research reports, drastic environmental conditions during transplanting and planting damage, etc., will lead to increased root primordial loss, it must be from the seedling quality and transplanting techniques and cultivation of environmental conditions to prevent the lack of root primordium