植物生长调节剂处理对黄冠梨糖、酸含量的影响

Effects of Plant Growth Regulators on Contents of Sugar and Acid in Huangguan Pear Fruits

以黄冠梨果实为试验材料,研究不同植物生长调节剂对黄冠梨果实糖、酸含量及其变化的影响。结果表明:生长调节剂处理果实中糖、酸变化趋势与套3层袋的对照果实一致。在花后60～70 d,IAA和GA4+7处理果实中葡萄糖、果糖和可溶性糖含量显著高于套3层袋的对照果实,但果实成熟时,没有显著性差异。GA3和GA4+7处理蔗糖含量从花后100～110 d显著高于套3层袋的对照。果实成熟时,GA3处理果实苹果酸和有机酸含量显著高于对照果实,NAA、IAA和GA4+7处理与对照无显著差异,不同类型生长调节剂处理对果实中莽草酸含量无显著影响。

Huangguan pear was used to determine the effects of plant growth regulators on sugar and acid development.The resulted showed that：In different types of growth regulators treatment,the variation trends of different kind soluble sugar and organic acid content were similar to three layers bag.In the fruits of 60-70 days after flowering,the glucose,fructose and soluble sugar content in IAA and GA4＋7 treated fruits were significantly higher than the fruit from three layers bag,but for the mature fruit,there was no significant difference.The sucrose content in GA3 and GA4＋7 treatment was significantly higher than the control of fruit from three layers bag in the 100-110 days after flowering.In mature fruit,malic acid and organic acid content under the GA3 treatment was significantly higher than with bagged fruit,which in NAA,IAA and GA4＋7 treatments was no significant difference compared with control;different types of growth regulators treatments had not significantly effect on the shikimic acid content in fruits.