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在棉属远缘杂种低世代植株生长发育过程中,定期喷施4～6次激素或与微肥混用,对促进胚囊发育有良好效果。喷施40mg/kg GA_3,80～100mg/kgNAA 或100mg/kg IAA 对提高杂种植株正常发育的胚囊%、单株铃数、铃重和单铃种子数均有良好作用,0.05～0.1mg/kg BR 和2mg/kg ABA 的效果也较好。2mg/kg ABA 或40mg/kg GA_3分别与3种微肥混施的处理中,以与 MnCl_20.1%混施处理表现突出,其正常胚囊%与对照比较均达显著水平,单施 MnCl_2效果不明显。
During the growth and development of low-generation cotton hybrids with low generations, regular application of 4 to 6 hormones or mixed with micronutrients has a good effect on promoting embryo sac development. Spraying 40mg / kg GA_3, 80 ~ 100mg / kg NAA or 100mg / kg IAA had a good effect on increasing the percentage of embryo sac, the number of bolls per plant, kg BR and 2mg / kg ABA is also better. 2mg / kg ABA or 40mg / kg GA_3 respectively mixed with three kinds of micro-fertilizers in the treatment with MnCl_20.1% mixed treatment outstanding performance, the normal embryo sac% compared with the control were significant levels of single MnCl_2 effect Not obvious.