芸薹素内酯和复硝酚钠对茭白生长发育和产量的影响

Effects of Brassinolide, Compound Sodium Nitrophenolate on Growth,Development and Yield of Zizania latifolia

通过研究芸薹素内酯和复硝酚钠两种植物生长调节剂对茭白生长发育和产量的影响。研究结果表明,喷施1.8%复硝酚钠水剂5.94mg/L(有效成分含量,下同)、0.04%芸薹素内酯水剂0.07mg/L以及1.8%复硝酚钠水剂与0.04%芸薹素内酯水剂等体积混配液1.84mg/L等三种处理均能使茭白结茭时间提早4~5d,茭白的有效苗数、结茭率和产量显著提高。建议在茭白孕茭前15~30d喷施1次,隔7d后再喷1次较好。

In the paper, we studied the effects of brassinolide, compound sodium nitrophenolate on the growth and yield of Zizania latifolia. The results showed that, the harvest time of Z. latifolia was four to five days earlier while sprayed 1.8% compound sodium nitrophenolate aqueous solution （AS） 5.94 mg/L （active component content）, 0.04% brassinolide AS 0.07 mg/L and equivoluminal mix-solution of the two plant growth regulators 1.84 mg/L, and the effective seedling number, culm-swelling percentage and yield of Z. latifolia increased significantly. It was recommended that sprayed one of the two plant growth regulators once fifteen to thirty days before culm-swelling of Z. latifolia, and then sprayed again seven days later.