苗博士种衣剂处理杂交水稻种子后的安全贮存研究

Studies on Storage Security of Hybrid Rice Seeds Coated with ″Miaoboshi″ Seed-coating Formulation

采用苗博士种衣剂对杂交早稻组合Ⅰ优974和杂交晚稻组合新香优80种子进行包衣，研究了在10％，11％，12％，13％等4个不同初始含水量和不同贮存条件下（低温和常温）杂交水稻种子发芽率和α-淀粉酶活性随贮存时间的变化。结果表明，低温和低初始水分含量有利于杂交水稻种子包衣处理后安全贮存。苗博士种衣1号包衣的Ⅰ优974种子，在常温条件下能安全贮存2-4个月，在低温、低水分条件（10％～11％）下可安全贮存1a以上；苗博士种衣2号包衣的新香优80种子，在常温条件下能安全贮存3个月，在低温、低水分（10％-12％）条件下可安全贮存8个月。

The changes with the storing periods of germination rate and α - amylase activity of the seeds of I You 974, an early hybrid rice combination, and Xinxiangyou 80, a late hybrid rice combination , which were coated with the seedcoating formulation （SCF） of ＂Miaoboshi＂ No. 1 and No. 2, respectively, were studied under the conditions of two storing temperatures （normal and low） and four initial moisture contents （IMC） of seeds before coating （10%, 11%, 12% and 13%）. The results showed that low storing temperature and lower IMC were favorable to the safe storage of seeds after Coating treatments. The seeds of I You 974 coated with ＂Miaoboshi＂ No. 1 could be safely stored for two to three months under normal temperature conditions and for more than one year under low temperature and lower IMC （ 10% - 11%） conditions. The seeds of Xinxiangyou 80 coated with ＂Miaoboshi＂ No. 2 could be safely stored for three months under normal temperature conditions and for more than eight months under low temperature and lower IMC （10% -12% ） conditions.