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

doi:10.3969/j.issn.1000-7091.2012.z1.030

Abstract

Abstract: 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 afterflowering， the glucose， fructose and soluble sugar content in IAA and GA₄₊₇ treated fruits were significantly higherthan the fruit from three layers bag， but for the mature fruit， there was no significant difference． The sucrose contentin GA₃ and GA₄₊₇ treatment was significantly higher than the control of fruit from three layers bag in the 100 － 110days after flowering． In mature fruit， malic acid and organic acid content under the GA₃ treatment was significantlyhigher than with bagged fruit， which in NAA， IAA and GA₄₊₇ treatments was no significant difference compared withcontrol; different types of growth regulators treatments had not significantly effect on the shikimic acid content infruits．

Key words: Pear, Plant growth regulators, Acid, Sugar

CLC Number:

S661.2

HAN Yan-xiao, WANG Ya-ru, LIU Shu-hai, WANG Yong-bo, LI Xiao, LI Yong, WANG Ying-tao. Effects of Plant Growth Regulators on Contents of Sugar and Acid in Huangguan Pear Fruits[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.030.

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