植物生长调节剂对橄榄开花结果的影响

2005年在广东揭东县进行了橄榄开花前喷洒植物生长调节剂的对比试验,结果显示:4种植物生长调节剂对提高橄榄座果率的效应依次为:赤霉素>核苷酸>多效唑>硼砂。赤霉素对橄榄座果有极显著的促进作用,其中10 mg/L效果最好,与对照相比座果率增加达27.4个百分点。核苷酸能够提高座果率,以400 mg/L最佳,座果率增加达13.3个百分点;在50~800 mg/L范围内,产量随着浓度增加而提高。多效唑抑制橄榄的营养生长,减少开花量,座果率以2 000 mg/L处理最好,增加达15.9个百分点;硼砂对橄榄座果率提高影响不显著。

Effects of Plant Growth Regulators on the Blossom and Fruitification of Canarium album Reausch

Different plant growth regulators were used to the blossom and fructification of Canarium album Reausch in jiedon county of Guangdong in 2005.The results showed that there were different effects among four kinds of plant growth regulators.The effect of the regulators from great to little was ranged in turn as follow: GA_3,Nucleotide,PP333,Borax.GA_3 could improved the fructification significantly.The best effect was abtained at 10 mg/L which fruit-bearing rate was increased 27.4 percents.Nucleotide could also improve the fructification and the hightest fruit-bearing rate at 400 mg/L was improved 13.3 percents.The yield of fruits was increased with the increase of the concentration of Nucleotide among the tested scope of 50~800 mg/L.PP333 could restrain the growth of Canarium album and reduce the quantity of flowers.The hightest fruit-bearing rate at 2 000 mg/L was increased 15.9 percents.Borax had effect on the fructification of Canarium album,however,were significantly different.