论文部分内容阅读
以10a生库尔勒香梨的1a生枝条为材料,研究不同施肥量对提高库尔勒香梨抗寒性的关系。农家羊粪施用量分别为50,80,100kg/株,对照施用量为30kg/株,在人工低温胁迫条件下测定膜透性、可溶性糖、淀粉、游离脯氨酸和丙二醛(MDA)含量等指标。研究结果表明,各处理在低温胁迫下变化趋势明显,其中膜透性、可溶性糖、脯氨酸和丙二醛随着低温胁迫的加剧,各测定值呈不同程度增加。淀粉含量与可溶性糖含量值呈负相关趋势。各施肥处理在-28℃时差异明显。库尔勒香梨不同施肥处理在低温胁迫下的抗寒顺序为:100kg/株>80kg/株>50kg/株。在生产中每株香梨树施80～100kg农家羊粪可提高抗寒能力。
In order to study the relationship between the different fertilizers and improving the cold resistance of Korla fragrant pear, the growth of 1a raw branches of Korla pear was studied. The sheep manure application rates were 50, 80 and 100 kg / plant respectively and the control application rate was 30 kg / plant. The membrane permeability, soluble sugar, starch, free proline and malondialdehyde (MDA) And other indicators. The results showed that the changes of all treatments were obvious under low temperature stress. The membrane permeability, soluble sugar, proline and malonaldehyde increased with the increase of low temperature stress. The starch content and soluble sugar content showed a negative correlation trend. The fertilization at -28 ℃ significantly different. The order of cold resistance of Korla fragrant pear under different fertilization treatments was: 100kg / plant> 80kg / plant> 50kg / plant. In the production of pear per plant 80 ~ 100kg farm sheep manure can improve the ability of cold.