叠盘暗化催芽处理对水稻秧苗素质的影响

以南粳9108为材料,比较分析了不同育秧处理对水稻秧苗素质的影响。结果表明,经暗化催芽基质育秧处理的秧苗株高、茎基粗、叶龄、SPAD值、百株鲜质量显著高于未暗化催芽基质育秧处理和营养土育秧处理,且各指标变异系数最小。对秧苗评价指标进一步分析,结果也表明,经暗化催芽基质育秧处理的秧苗出苗率、壮苗指数、根系盘结力也显著高于其他处理,且育秧进程可以加快2~3 d。可见,暗化催芽处理作为基质育秧的一项必要技术,对提高育秧质量有着关键影响,在生产中应加以大力推广。

Effect of Rice Seedling Qualities under the Dark Treatment

An experiment was carried out to study the effect of rice seedling qualities under different cultivating treatments with Nan-jing 9108 as material. The results showed that the plant height, basal stem width, leaf age, SPAD value, fresh weight, all these indexes of seedling qualities were significantly excelled with the minimum coefficient variation(CV) under the dark treatment, compared with the rice seedling under non-dark treatment and the nutrition soil treatment. It also showed that the emergence rate, health seedling in-dex and root twisting power under the dark treatment were higher than the other treatments significantly, and raising seedling process speeded up 2~3 d. It all proved that the dark treatment germination technique is very necessary and important, which should be wide-ly popularized.