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当前位置: 首页 > 文章 > 杨树不同品种插穗自身含水量与扦插成活的关系 吉林林业科技 2009,38 (4) 12-16
Position: Home > Articles > Relationship between moisture contents of cuttings and survival rates for different poplar varieties Journal of Jilin Forestry Science and Technology 2009,38 (4) 12-16

杨树不同品种插穗自身含水量与扦插成活的关系

作  者：
高风华;经希天;司凤义;许英;杨茹;宋力
单  位：
四平市林业局;梨树县林业局;梨树县石岭林场
关键词：
杨树品种;插穗;含水量;失水率;成活率
摘  要：
以中黑防、晚花杨、小黑杨14号3个杨树品种为试验材料,设计自然失水24 h、48 h7、2 h三个梯度(处理)研究插穗自身含水量与扦插成活的关系。结果表明:在相同的自然失水时间里,晚花杨失水率最大,自然失水处理72 h,失水率可达30.7%,小黑杨14号为29.6%,中黑防也达到了27.9%。中黑防在穗条自身失水率达到30%时,生根与成活率才会显著下降;而小黑杨14号和晚花杨在穗条自身失水率达到20%时,生根与成活率就会显著下降。
译  名：
Relationship between moisture contents of cuttings and survival rates for different poplar varieties
作  者：
GAO Feng-hua1,JING Xi-tian1,SI Feng-yi2,XU Ying2,YANG Ru3,SONG Li3 (1.Shiling Forest Farm of Lishu County,Siping 136505,China;2.Forestry Bureau of Lishu County,Siping 136500,China;3.Forestry Bureau of Siping City,Siping 136000,China)
关键词：
poplar varieties;cutting;moisture content;dehydration rate;survival rate
摘  要：
A study was conducted to determine the relationship between moisture content of the cuttings and the survival rate of cuttage for Populus deltoides×P.cathayana,Populus×eurameicana cv.'Serotina'and Populus simonii×P.nigra cv.-14.Cuttings of the three poplar varieties were put in the shade for natural dehydration of 24 h,48 h,and 72 h.The results show that in the same natural dehydration time,Populus×eurameicana cv.'Serotina' presents the highest dehydration rate;for 72 h natural dehydration treatment,the dehydration rates of Populus×eurameicana cv.'Serotina',Populus simonii×P.nigra cv.-14,and Populus deltoides×P.cathayana cuttings were 30.7%,29.6%,and 27.9%,respectively.The rooting rate and survival rate of Populus deltoides×P.cathayana cuttings begin to decrease obviously only when the dehydration rate of cuttings achieves 30%,whereas the rooting rates and survival rates of Populus simonii×P.nigra cv.-14 and Populus×eurameicana cv.'Serotina' cuttings drop significantly when the dehydration rate of cuttings reaches 20%.

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