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以10年生早实核桃‘绿岭’为试材,研究了剪除受冻梢与不剪除冻梢之间的生理效应差异,以减轻霜冻对核桃树造成的伤害。结果表明:4月20日修剪、5月6日修剪、对照的萌芽率分别为69.05%、61.20%、56.32%,2个修剪处理的显著高于对照,4月20日修剪处理的极显著高于5月6日修剪处理的;坐果率分别为79.66%、71.55%、63.31%,4月20日修剪处理的显著高于对照;日平均液流速率分别为4.73、4.02、2.52cm/h,4月20日修剪处理的日平均液流速率最大;净光合速率分别为7.77、7.39、5.41μmol·m-2·s-1,4月20日修剪处理的最大;叶绿素a含量分别为1.83、1.76、1.65mg/g,叶绿素(a+b)含量分别为2.56、2.49、2.30mg/g;叶片全氮含量分别为2.4005%、2.2512%、2.0533%,全钾含量分别为1.6516%、1.4115%、1.3076%,均以4月20日修剪处理的最高;根系活力分别为196.04、184.76、162.89μg·g-1·h-1;单果重分别为12.21、11.57、10.53g,每株树的产量分别为3.67、2.99、2.03kg;脂肪含量分别为65.49%、65.32%、63.71%,总蛋白质含量分别为20.60%、20.11%、19.72%,可溶性蛋白质含量分别为2.26%、2.23%、2.17%,三者均以4月20日修剪处理的最高。
The 10-year-old early-fruiting walnut ’Lvling’ was used to study the difference of physiological effects between the cuttings of the frozen and the non-cut ones, so as to reduce the damage caused by the frost on the walnut trees. The results showed that the pruning rates of the pruning on April 20 and the pruning on May 6 were 69.05%, 61.20% and 56.32% respectively. The pruning rates of the two pruning treatments were significantly higher than those of the control and the pruning treatments on April 20th were extremely significant On May 6 pruning treatment; fruit setting rates were 79.66%, 71.55%, 63.31%, April 20 trimmed significantly higher than the control; daily average flow rates were 4.73,4.02,2.52cm / h, The average daily flow rate of the pruning treatment on April 20 was the largest; the net photosynthetic rate was 7.77, 7.39 and 5.41 μmol · m-2 · s-1, respectively, and the maximum pruning was on April 20; the chlorophyll a contents were 1.83, 1.76 and 1.65 mg / g respectively, and the contents of chlorophyll (a + b) were 2.56, 2.49 and 2.30 mg / g respectively. The contents of total nitrogen in leaves were 2.4005%, 2.2512% and 2.0533%, and the contents of total potassium were 1.6516% and 1.4115% , 1.3076% respectively, all of which were the highest in pruning on April 20; the root activities were 196.04, 184.76 and 162.89μg · g-1 · h-1 respectively; the fruit weight was 12.21, 11.57 and 10.53g, Respectively, 3.67,2.99,2.03kg; fat content were 65.49%, 65.32%, 63.71%, respectively, the total protein content was 20.60%, 20.11%, 19.72%, respectively, the content of soluble protein 2.26%, 2.23%, 2.17%, the three are April 20th highest trimming processing.