光胁迫对翌年‘绿岭’核桃树体生长发育的影响  

Effects of Light Stress on the Second Year Growth and Development of 'Lyuling' Juglans regia L.

作　　者：梁曼曼[1] 弓萌萌 李寒[1] 张雪梅[1,2] 郭素萍[1,2] 齐国辉[1,2] 

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北省核桃工程技术研究中心,河北邢台054000

出　　处：《北方园艺》2017年第17期34-39,共6页Northern Horticulture

基　　金：河北省科技计划资助项目(16236810D)

摘　　要：为探讨‘绿岭’核桃对光照的需求和适应性,设置了不同遮阴程度(80%、50%、30%),研究其对翌年‘绿岭’核桃树体生长发育的影响。结果表明:80%遮阴处理的一年生枝抽干长度和比例极显著大于其它处理和CK,分别为75cm和37.5%;80%遮阴处理的主枝抽干长度及比例极显著大于其它处理和CK,分别为138cm和72.42%;80%遮阴处理的主枝上结果枝抽干数量及比例极显著大于其它处理和CK,分别为每枝21.67条和91%;80%遮阴处理的结果枝抽干数量极显著大于其它处理和CK,每株达212条;80%遮阴处理的核桃叶片叶绿素含量极显著低于其它处理和CK;80%遮阴处理的叶面积指数极显著低于其它处理和CK,仅为2.34;80%遮阴处理的平均叶倾角极显著低于其它处理和CK,仅为40.23°;80%遮阴处理的无截取散射极显著高于其它处理和CK,达到0.17;80%遮阴处理的枝条含水量显著高于其它处理和CK,高达51.60%;80%遮阴处理枝条的可溶性糖、蔗糖和淀粉含量均显著低于其它处理和CK,仅为4.53%、2.07%和4.25%;80%遮阴处理的单株结果数量极显著低于其它处理和CK,每株仅为37.67个;80%遮阴处理的冠幅极显著低于其它处理和CK,仅为260.00cm×323.33cm;80%遮阴处理一年生枝的长度和粗度极显著大于其它处理和CK,达到241.12cm和3.02cm。In order to study the needs and adaptability to sunlight of ‘Lyuling’ walnut,the effects of different degrees of shads （80%,50% and 30%） on the second year growth and development of ‘Lyuling’ walnut were studied.The results showed that,the elongation and proportion of dead annual branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 75 cm and 37.5%;the elongation and proportion of dead main branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 138 cm and 72.42%;the elongation and proportion of dead fruiting branches above main branch in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 21.67 each branch and 91%;the number of dead fruiting branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which was 212 each strain;the chlorophyll content of 80% shading treatment was significantly lower than that of other treatments and CK;the LAI of 80% shading treatment was significantly lower than that of other treatments and CK,which was only 2.34;the MTA of 80% shading treatment was significantly lower than that of other treatments and CK,which was only 40.23°;the DIFN of 80% shading treatment was significantly higher than that of other treatments and CK,which was 0.17;the water content of branch in the 80% shading treatment was significantly higher than that of other treatments and CK,which was 51.60%;the soluble sugar,sucrose and starch content of branch in the 80% shading treatment were significantly lower than that of other treatments and CK,which were only 4.53%,2.07% and 4.25%;the number of each plant of 80% shading treatment was significantly lower than that of other treatments and CK,which was only 37.67 each strain;the tree canopy width of 80% shading treatment was significantly lower than that of other treatments and CK,which was only 260.00 cm×323.33 cm;the annual branches elongation and d

关 键 词：光胁迫 核桃 产量 叶面积指数 

分 类 号：S664.1[农业科学—果树学]