Preliminary study of ZS new seedling-agent on growth of rice seedling

The new seedling agent- ZS1 #、ZS2 #、ZS3 #, which are the mixture consisted of different plant growth regulators and fungicide, are applied to growth of rice seedling with using plastics seedling on the basis of the preliminary test study of plant growth regulators GA、NAA、6-BA、PG 1and PG 2 on the growth of rice seedling by soaking seed. The results of the test study shows: (1) the average stalk wide of rice seedling by using ZS # is raised by 28.4%～65.1% compared with CK (soaking seed with water); (2) the average root number of rice seedling is raised by nearly 100%, the ratio of the white root is raised by 94.9% ～139.7% compared with CK; (3) the tillering of rice seedling is promoted by using ZS2 #、ZS3 #;(4) the weight of the dry rice seedling is raised by above 20% and the ratio of the weight of dry rice seedling to the height of rice seedling is raised by 7.8%～35.2% compared with CK. Rice seedling is stronger and it is advantage to the rice seedling growth later by using the new seedling-agent.