Water Absorbing Capacity of Apple Leaves in Loess Hilly and Dully Region of Northern Shaanxi Province

BAI Gang-shuan; Sha Lei; LI Jing-jing; ZHANG Rui; DU She-ni

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Water Absorbing Capacity of Apple Leaves in Loess Hilly and Dully Region of Northern Shaanxi Province

- Water Absorbing Capacity of Apple Leaves in Loess Hilly and Dully Region of Northern Shaanxi Province
- Bulletin of Soiland Water Conservation Vol. 32, Issue 5, Pages: 92-95(2013)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所陕西杨凌,712100
  2. 中国石油长庆油田分公司第五采气厂陕西杨凌,712100
  3. 中国科学院水利部水土保持研究所内蒙古乌审旗,017312
  4. 西北农林科技大学林学院陕西杨凌,712100
- 作者简介：
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- Published：2013
- 稿件说明：
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BAI Gang-shuan, Sha Lei, LI Jing-jing, et al. Water Absorbing Capacity of Apple Leaves in Loess Hilly and Dully Region of Northern Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2013, 32(5): 92-95.
DOI：

BAI Gang-shuan, Sha Lei, LI Jing-jing, et al. Water Absorbing Capacity of Apple Leaves in Loess Hilly and Dully Region of Northern Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2013, 32(5): 92-95. DOI：

摘要

为了明确苹果叶片的吸水性能，评价苹果树冠截留及叶片的抗病能力，利用吸水纸吸水和湿棉纱布供水，在陕北黄土丘陵沟壑区测定了富士、秦冠苹果叶片正面、背面及双面的吸水能力。结果表明，2个苹果品种叶片正面、背面、双面的吸水量均随吸水时间的延长而增加，呈一元三次多项式关系；吸水速率则随吸水时间的延长而降低，其中叶片正面的吸水速率与吸水时间均呈一元四次多项式关系，背面、双面均呈一元三次多项式关系，且秦冠叶片正面的吸水速率与吸水时间的相关性较差。富士苹果叶片的正面、背面和双面在0~80min内吸水量及吸水速率较大；秦冠苹果叶片的背面和双面在0~60min内较大，正面在0~240min内变化较小。两个品种叶片的吸水量及吸水速率均表现为双面最高，背面居中，正面最低。富士苹果叶片正面、背面、双面的最大吸水量、最大吸水速率均高于秦冠。

Abstract

In order to clarify the water absorbing capacity of apple leaves and evaluate the crown interception capability and disease resistance of apple leaves

water absorbing quantity and water absorbing rate of front

back and two-side leaves of Fuji and Qinguan apple varieties had been measured using absorbent paper and wet cotton gauze in the loess hilly and gully region of Northern Shaanxi Province.Results showed that the water absorbing quantities of front

back and two-side leaves of two apple varieties increased with absorbing time

presenting a cubic polynomial relation.Water absorbing rates decreased with absorbing time

of which the relationship between water absorbing rate and water absorbing time for the front leaves of two apple varieties presented a quartic polynomial and the back

the two-sided leaves

a cubic polynomial.Furthermore

water absorbing rate and absorbing time for the front leaves of Qinguan apple had a poor correlation.The front

back and two-sided leaves of Fuji apple had larger water absorbing quantity and water absorbing rate 80 min after absorbing.The back and two-side leaves of Qinguan apple had larger water absorbing quantity and water absorbing rate 60 min after absorbing

and water absorbing quantity and water absorbing rate of front leaves had little change 240 min after absorbing.The water absorbing quantity and water absorbing rate of two apple varieties leaves were the highest for the two-side leaves

the middle for the back leaves，and the lowest for the front leaves.The maximum water absorbing quantity and maximum water absorbing rate of the front

back and two-side leaves of Fuji apple were higher than Qinguan apple.

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