不同沙尘和遮阴处理梯度对4种果树叶片有机渗透调节物质的影响  

Effects of Different Dust Stresses and Shading Treatment Gradients on Organic Osmotic Adjustment Substances of Four Kinds of Fruit Tree Leaves

作　　者：萨吉旦.阿卜杜克日木 巴特尔.巴克 艾克来木.艾合买提 祖力克艳.麻那甫 王孟辉[1] 罗那那 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052

出　　处：《新疆农业科学》2017年第8期1460-1468,共9页Xinjiang Agricultural Sciences

基　　金：国家自然科学基金项目"新疆几种特色果树叶绿素荧光对沙尘胁迫的响应"(31460316)~~

摘　　要：【目的】测定沙尘和遮阴处理的可溶性蛋白、脯氨酸和可溶性糖等指标,研究不良环境对果树叶片的伤害。【方法】选取核桃、杏、巴旦木和苹果4种果树,采用人工覆沙与遮阴处理的方法,设置4个时间(9、18、27和36 d)和2个梯度(沙尘3和9 mg/cm2、遮阴16.4%和46.5%)的正交试验,测定不同处理对上述4种果树叶片渗透调节物质的影响。【结果】轻度沙尘处理后,4种果树叶片脯氨酸、可溶性糖含量逐渐上升,而可溶性蛋白含量较对照均增加45.83%后下降趋势;重度沙尘处理下,上述3种渗透调节物质含量均在9~18 d出现峰值后下降。遮阴处理对4种果树叶片渗透调节物质含量有明显的影响,叶片经过轻度遮阴处理后其含量不同程度的增强。随着遮阴胁迫程度的加剧,可溶性蛋白、脯氨酸含量出现了降低的趋势,遮阴均在18~27 d出现峰值后下降。【结论】沙尘、遮阴胁迫对4种果树叶片带来一定的不利影响。[Objective] In order to make clear the effects of adverse environment on the damage of fruit tree leaves,the soluble protein, proline and soluble sugar were determined under the condition of dust and shade stress.[Method]Juglans regia,Armeniaca vulgaris, Amygdalus communis and Malus pumila were selected as material, orthogonal experiments were designed under the different artificial conditions （ dust 3 mg/ cm2 and 9 mg/ cm2 , shading 16. 4% and 46.5 % ） and treatment times 9 d , 1 8 d, 2 7 d, 3 6 d were set to ana-lyze the impact of different treatments on the osmotic adjustment substances of leaves. [Result] Under the light dust treatment, the four kinds fruit tree leaves proline and soluble sugar content increased gradually, but solu-ble protein increased first and then declined. The contents of proline, soluble sugar and protein reached the peak value 9 -18 d, and then decreased under the heavy dust stress. The osmotic adjustment substances in-creased to different degrees under the light shading treatment, but increased first and then decreased under the heavy shading treatment.[Conclusion] Ust and shading stress brings some adverse effects on 4 kinds of fruit tree leaves.

关 键 词：沙尘覆盖 遮阴处理 叶片 渗透调节物质 

分 类 号：S761.2[农业科学—森林保护学]