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    Abstract
2012 (Vol. 4, Issue: 6)
Article Information:

Impact of Waterlogging Coupling with High Temperature during Cotton in Flowering and Boll-bearing on its Photosynthetic Physiology and Yield

Wei Yang, Jian-qiang Zhu and Wen-huai Liu
Corresponding Author:  Jian-qiang Zhu 

Key words:   Cotton flower boll stage, growth indexes, high temperature, waterlogging stress, , ,
Vol. 4 , (6): 344-347
Submitted Accepted Published
August 31, 2012 October 03, 2012 December 20, 2012
Abstract:

This experiment was made according to the rainy climatic characteristics during May to Aug in Jianghan Plain of Hubei province as well as in the southern plain of China, excessive rain and high temperature in the period often bring a severe damage for cotton growth and its final output, the purpose of this study expects to explore or indicate an effect of the coupled action of high temperature and waterlogging on cotton, the analysis focus on an influence of the coupling on cotton fluorescence kinetic parameters, SPAD and yield components. Results showed that: the F0 increased after waterlogged processing and was greater than the previous changes. Generally, at the sixth day of each treatment the F0 of the surface waterlogging and subsurface waterlogging had increased 7-20% and 9- 16%, respectively, rising rate was basically positive related to the stresses degree, but Fm, Fv/Fm and Fv/F0 decreased; Chlorophyll relative content of SAPD firstly decreased and then increased, at the sixth days got to the lowest, the decrease of SPAD amplitude was positively related to the degree of waterlogging stresses. Additionally, the influence of high temperature and waterlogging interaction on yield was affected mainly by the boll number of cotton, boll weight and lint percentage had a little influence to it. As a whole, the impact of surface waterlogging on indexes above was more than subsurface waterlogging compared with CK, the yield after treated 5 days nearly reduced 60%.
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  Cite this Reference:
Wei Yang, Jian-qiang Zhu and Wen-huai Liu, 2012. Impact of Waterlogging Coupling with High Temperature during Cotton in Flowering and Boll-bearing on its Photosynthetic Physiology and Yield.  Advance Journal of Food Science and Technology, 4(6): 344-347.
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ISSN (Online):  2042-4876
ISSN (Print):   2042-4868
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