6-BA处理对水稻根系中后期生长的影响
杨知建;徐庆国;朱春生;王旭军;张瑜
【期刊名称】《湖南农业大学学报（自然科学版）》 【年(卷),期】2009(035)005
【摘要】In order to explore methods to solve early aging of root of hybrid rice, Liangyoupeijiu (Peiai64S×9311, two-line super hybrid rice), Shanyou63 (Zhenshan97A×Minghui63, three- line hybrid rice), Xiangzhou8 (conventional middle rice) were chosen to be sprayed with foreign hormone 6-BA at booting stage and heading stage. The main results are as follows: By spraying 6-BA at desirable concentration, number of adventitious roots per plant(NARP) increased before heading stage, while after heading stage, the decrease of NARP retarded. Total length of adventitious roots per plant(TLRP) increased significantly at both booting stage and heading stage, and retarded senescence. Length of longest adventitious root(LLAR) increased at early stage, but the effect was not obvious at late stage, and dry weight of root per plant(RDWP) and bulk of roots per plant (BRP) increased significantly at middle and late growth stage.%为探寻超级杂交稻根系早衰的解决方法,采用两优培九(培矮64S×9311,两系超级杂交稻组合)、汕优63(珍汕97A×明恢63,三系杂交稻组合)与湘洲8号(常规中稻品种)3个不同类型的水稻品种(组合),于孕穗期和抽穗期进行20 mg/L 6-苄氨基腺嘌呤(6-BA)叶面喷施效果试验.结果表明:不同类型水稻品种(组合)在孕穗期适当地喷施6-BA,能够增加其不定根数
6-BA处理对水稻根系中后期生长的影响
