植物生长调节剂对番茄畸形果发生的影响

本试验就喷施多种植物生长调节剂对番茄畸形果发生的影响进行了研究，结果认为：ＧＡ３、Ｂ－９、乙烯利３种植物生长调节剂不仅显著地提高了番茄畸形果（尤其是乱形果中顶裂果、混发果）的发生率，而且还加重了畸形果的发生程度及增加了畸形果的类型。其中ＧＡ３的影响最大，Ｂ－９次之，乙烯利的作用较小。２，４－Ｄ和ＰＣＰＡ则显著地降低了畸形果的发生类型和发生程度。ＰＰ３３３有减轻畸形果发生的趋势。在本试验的施用浓度下，ＩＡＡ、ＮＡＡ、ＢＡ、ＣＣＣ等４种植物生长调节剂对番茄畸形果的发生无显著作用。

Effects of Plant Regulators on Occurrence of Malformed Fruit of Tomato

Different plant regulators with different concentrations were applied during tomato seedling stage The results were shown as follow Applications of GA 3,B-9,Etr increased not only incidence of malforned fruit(especially the incidence of cat-faced fruits and mixing malformation fruits in disorder fruits),but also the degree of occurrence and types The order of their effectiveness was GA 3>B-9>Etr However 2,4-D and PCPA obviously reduced the incidence,types and degree of occurrence PP 333 tended to be lowered the incidence of malformed fruit IAA,NAA,BA and CCC were no significant effect