Determination of a suitable indicator of tomato water content based on stem diameter variation

文献类型： 外文期刊

第一作者： Wang, Xiaosen

作者： Wang, Xiaosen;Meng, Zhaojiang;Chang, Xiao;Deng, Zhong;Li, Ying;Lv, Mouchao;Wang, Xiaosen;Deng, Zhong;Li, Ying;Lv, Mouchao;Wang, Xiaosen;Deng, Zhong;Li, Ying;Lv, Mouchao

作者机构：

关键词： MDS;DG;Water content diagnosing;Meteorological factor;Prediction equation

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This paper describes a study on stem diameter variations (SDV) of tomatoes planted in a greenhouse on the North China Plain in autumn. The results indicated that comparing full irrigation (T0) and water stress (T1) treatments, the indexes of MDS (maximum daily shrinkage), predawn leaf water potential and midday stem water potential were all able to diagnose tomato water stress in a timely manner, but the MDS had the advantages of sensitivity and signal intensity that the others lacked. The critical soil water baseline was 75%FC, below which the water stress inner tomato stem was able to be precisely diagnosed by MDS. Statistical analyses of the MDS under T0 and T1 treatments as well as the main meteorological factors showed that the treatments were correlated according to linear correlations and quadratic polynomials respectively, and the key meteorological factors influencing tomato SDV in a greenhouse were the daily mean vapor pressure deficit (VPDm) and daily maximum radiation (R-max). The prediction equation for MDS consisted of VPDm and R(max,)was able to predict the values of MDS under full irrigation exactly, which could be used as the baseline of the tomato water content diagnosing and irrigation planning. (C) 2016 Elsevier B.V. All rights reserved.

分类号： S6

  • 相关文献

[1]Remote-Sensing Based Winter Wheat Growth Dynamic Changes and the Spatial-Temporal Relationship with Meteorological Factor. Huang Qing,Zhou Qingbo,Wu Wenbin,Li Dandan. 2014

[2]Study on water consumption rule and impact factor on potted cultural pear. Cheng, Fuhou,Zhang, Jiying,Zhao, Yanli,Sun, Hongyong. 2010

[3]Dynamics of carbon fluxes with responses to vegetation, meteorological and terrain factors in the south-eastern Tibetan Plateau. Jiang, Yan,Jiang, Yan,Wang, Peng,Xu, Xiangde,Zhang, Jiahua. 2014

[4]Global warming affects the occurrence of stem borers in ecological engineering-based diversified farming ecosystems. Wan, Nian-Feng,Jiang, Jie-Xian,Cai, You-Ming,Wan, Nian-Feng,Shic, Sheng-Gao,Chen, Yi-Jun,Qin, Zhong,Yao, Ying-Juan.

[5]The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenee in the large-scale agricultural production on Chongming Eco-island in China. Wan, Nian-Feng,Ji, Xiang-Yun,Cao, Li-Ming,Jiang, Jie-Xian.

[6]The occurrence of rice planthoppers in diversified farming on Chongming Eco-Island in China. Wan, Nian-Feng,Zhang, Yi-Ming,Ji, Xiang-Yun,Zhang, Hao,Jiang, Jie-Xian,Wan, Nian-Feng,Yao, Ying-Juan,Wan, Nian-Feng,Zhang, Yi-Ming,Ji, Xiang-Yun,Zhang, Hao,Wan, Nian-Feng,Yao, Ying-Juan.

作者其他论文 更多>>

微信小程序