| Effects of drought stress on absorption and distribution of nutrients and yield and quality of flue-cured tobacco |
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| DOI：10.7606/j.issn.1000-7601.2006.01.15 |
| Key Words: flue-cured tobacco nutrient drought stress yield quality |
| Author Name | Affiliation | | WANG Yao-fu | College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China | | SUN De-mei | Henan College of Traditional Chinese Medicine,Zhengzhou 450003,China | | XU Chuan-kuai | Tobacco Company of Zhenping County,Zhenping,Henan474250,China | | CHENG Yu-yuan | Tobacco Company of Tanghe County,Tanghe,Henan474300,China |
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| Abstract: |
| The effects of drought stress on the absorption and distribution of nutrients and yield and quality of flue-cured tobacco(Nicotiana tabacum L.) were studied by pot experiment.The results showed that the concentration of N in tobacco plants was increased and the content of P,K,Ca,Mg,Fe and Mn was decreased significantly by drought stress,while the change of Cu,Zn and B content was not significant.It was also found that the absorption of all kinds of nutrients in the plants was decreased obviously,and their distribution ratio in roots and stalks was higher than that in leaves under drought stress,which resulted in the decline of yield and quality of flue-cured tobacco.The severer the drought,the more significant the effects were.The yield and quality of tobacco were influenced noticeably when drought stress occurred at vigorous growing stage and maturing stage respectively. |
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