不同育秧方式对粳型巨胚稻秧苗素质的影响

Effect of Different Seedling Raising Methods on Seedlings Quality in Japonica Giant Embryo Rice

采用旱育秧、湿润育秧、秧盘育秧和水育秧4种育秧方式,以优质常规粳稻合系22-2为对照,研究了不同育秧方式对粳型巨胚稻西巨胚1号秧苗素质的影响。试验结果表明:采用湿润育秧和旱育秧,西巨胚1号秧苗表现出较强的生长优势,苗高适宜,茎基部较粗,单株干物质积累多,可溶性蛋白质、超氧化物歧化酶含量和其根系活力较高,有利于培育壮秧。

The seedling, dry-raised experiments have four seedling raising methods, including dry -raised seedling, water-raised seedling in plastic trays and water cultivation of seedling. The effect of seedlings quality of Japonica Xi- giant embryo-1 was studied under different seedling raising methods, conventional japonica rice Hexi-22-2 as control. The results indicated that, under water-raised seedling and dry-raised seedlings, the seedling of Japonica Xi- giant embryo -1 has strong growth advantage, suitable seedling height, thick stem, more accumulation of dry matter per plant, and the content of soluble protein and superoxide dismutase and the activity of root were higher than that under the other seedling raising methods. Therefore, according to the seedling quality, water-raised seedling and dry -raised seedlings were beneficial to breed the vigorous seedling for the Japonica Xi- giant embryo - 1.