林业科学 ›› 2012, Vol. 48 ›› Issue (12): 128-133.doi: 10.11707/j.1001-7488.20121220
• 研究简报 • 上一篇 下一篇
柏新富, 卜庆梅, 谭永芹, 朱建军
收稿日期:
修回日期:
出版日期:
发布日期:
Bai Xinfu, Bu Qingmei, Tan Yongqin, Zhu Jianjun
Received:
Revised:
Online:
Published:
关键词: 水势, 压力室法, 原位法, 叶圆片法, 小液流法
Abstract:
The results and characteristics of water potential measurements with four different methods, namely the Chardakov method, Pressure chamber, in situ hygrometry and leaf disc hygrometry were compared on several plants species. Experimental results showed that the former 3 methods produced similar results, but the leaf disc hygrometry yielded significant different results from the other 3 methods. Further investigation showed that the results with the leaf disc hygrometry varied considerably with the equilibrium time and was not able to show the actual water potentials of the plants. The Chardakov method was time-consuming, and its efficiency was very low. Pressure chamber was able to provide accurate and reliable measurements of plant water potentials if the sample water loss could be avoided and the repetitious samples were available. While the in situ hygrometry showed the merits such as more reliable results, non-destructive to plants, no harsh prerequisites for plants and could measure the same spot of a plant continuously.
Key words: water potential, pressure chamber (Scholander bomb), in situ hygrometry, leaf disc hygrometry, chardakov method
中图分类号:
Q945.17
S718.43
柏新富;卜庆梅;谭永芹;朱建军. 植物4种水势测定方法的比较及可靠性分析[J]. 林业科学, 2012, 48(12): 128-133.
Bai Xinfu;Bu Qingmei;Tan Yongqin;Zhu Jianjun. Comparison and Analysis of Four Methods Used in Measuring the Plant Water Potential[J]. Scientia Silvae Sinicae, 2012, 48(12): 128-133.
0 / / 推荐
导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks
链接本文: http://www.linyekexue.net/CN/10.11707/j.1001-7488.20121220
http://www.linyekexue.net/CN/Y2012/V48/I12/128