多年来,我们在温州蜜柑上应用赤霉素保果,效果明显。但近年赤霉素常常脱销,故于1990年选用几种容易购到的保果剂,通过不同喷布时期、次数及不同保果剂类型的组配,进行保果试验。试材为5年生枳砧兴津温州蜜柑,共设14个处理,每处理小区3株树,重复4次。盛蕾期调查各株花蕾总数,7月底调查着果个数。 结果,有5个处理较优,着果率均在4％以上;其余处理均在4％以下,对照(喷清水)为3％。在优选的 Over the years, we applied gibberellicum in Wenzhou Satsuma fruit, the effect is obvious. However, gibberellins are often out of stock in recent years. Therefore, several commercially available preservatives were selected in 1990 to carry out the fruit-preserving test through the combination of different spraying periods, times and different types of preservatives. The test materials were 5-year-old oranges and oranges with a total of 14 treatments, 3 trees per treatment plot and 4 replications. Sheng Lei stage investigation of the total number of flower buds, the end of July to investigate the number of fruit. As a result, 5 treatments were superior, and the fruit-bearing rate was above 4%. The rest treatments were below 4% and the control (spraying water) was 3%. In the preferred