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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 investigate the demand and adaptability of ’Lvling’ walnut to light, different shading levels (80%, 50%, 30%) were set up to study the effects of Walnut on the growth and development of ’Green Ridge’ walnut trees the following year. The results showed that the length and proportion of stems per year of 80% shading were significantly greater than those of other treatments and CK, which were 75 cm and 37.5%, respectively. The length and proportion of main stems drained by 80% shading were significantly greater than those of other treatments CK, respectively, 138cm and 72.42%; 80% shading treatment of the main branch of the number of branches on the number and proportion of stems drained significantly more than other treatments and CK, respectively 21.67 and 91% per branch; 80% shading treatment results The number of stems drained significantly more than other treatments and CK, with 212 lines per plant. The leaf chlorophyll content of 80% shaded walnut leaves was significantly lower than other treatments and CK. Leaf area index of shading 80% The average leaf inclination of 80% shading treatment was significantly lower than that of other treatments and CK, only 40.23 °; the non-interception scattering of 80% shading treatment was significantly higher than other treatments and CK, Reaching 0.17. The water content of 80% shading branches was significantly higher than other treatments and CK, up to 51.60%. The content of soluble sugar, sucrose and starch of 80% shading branches were significantly lower than other treatments and CK, only 4.53 %, 2.07% and 4.25% respectively. The number of single-tree shading treatments with 80% shading was significantly lower than the others And CK, only 37.67 plants per plant. The crown width at 80% shading was significantly lower than other treatments and CK at only 260.00 cm × 323.33 cm. The length and thickness of annual branches with 80% shading were significantly greater than those with CK Other treatments and CK reached 241.12 cm and 3.02 cm.