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The Drought Tolerance Characteristics of the Main Afforestation Trees in Northwest Hubei Province

Cheng Yi-qun

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Abstract

Based on the experiment of water stress in pots,the drought tolerance characteristics of the main afforestation trees in northwest Hubei province were studied.The index variation characters of shape,water relations and physiological metabolism of Pinus elliottii,Couninghamia lanceolata,Robinia pseuidoacacia,Platycladus orientalis,Hippophae rhamnoides(introduction),and Caragana korshinskii(introduction) under water stress were (emphatically) analyzed;based on that,the drought tolerance characteristics of potted trees were synthetically evaluated.The results showed that six seedling trees for testing had stronger ability of fighting the drought.The ability of fighting the drought of Caragana korshinskii and Platycladus orientalis were stronger than that of Pinus elliottii,Couninghamia lanceolata and Robinia pseuidoacacia.

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What this paper is about

Based on the experiment of water stress in pots,the drought tolerance characteristics of the main afforestation trees in northwest Hubei province were studied.The index variation characters of shape,water relations and physiological metabolism of Pinus elliottii,Couninghamia lanceolata,Robinia pseuidoacacia,Platycladus orientalis,Hippophae rhamnoides(introduction),and Caragana korshinskii(introduction) under water stress were (emphatically) analyzed;based on that,the drought tolerance characteristics of potted trees were synthetically evaluated.The results showed that six seedling trees for testing had stronger ability of fighting the drought.The ability of fighting the drought of Caragana korshinskii and Platycladus orientalis were stronger than that of Pinus elliottii,Couninghamia lanceolata and Robinia pseuidoacacia.

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Available abstract

Based on the experiment of water stress in pots,the drought tolerance characteristics of the main afforestation trees in northwest Hubei province were studied.The index variation characters of shape,water relations and physiological metabolism of Pinus elliottii,Couninghamia lanceolata,Robinia pseuidoacacia,Platycladus orientalis,Hippophae rhamnoides(introduction),and Caragana korshinskii(introduction) under water stress were (emphatically) analyzed;based on that,the drought tolerance characteristics of potted trees were synthetically evaluated.The results showed that six seedling trees for testing had stronger ability of fighting the drought.The ability of fighting the drought of Caragana korshinskii and Platycladus orientalis were stronger than that of Pinus elliottii,Couninghamia lanceolata and Robinia pseuidoacacia.

Key concepts: Robinia, Platycladus, Afforestation, Hippophae rhamnoides, Caragana, Water stress, Drought tolerance, Seedling

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