| Effect of simplified infiltration irrigation with saline water on the growth and physiological characteristics of tomato in greenhouse |
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| DOI：10.7606/j.issn.1000-7601.2012.03.12 |
| Key Words: tomato saline water simplified infiltration irrigation yield quality leaf water potential photosyn-thetic characteristic soil salt |
| Author Name | Affiliation | | YANG Jing | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China
Graduate Universiiy, Chinese Academy of Scienoes, Beijing
100049,China | | LIU Mengyu | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China | | DONG Baodi | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China | | QIAO Yunzhou | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China | | SHI Changhai | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China | | ZHAI Hongmei | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China
Graduate Universiiy, Chinese Academy of Scienoes, Beijing
100049,China
School of Chemical Enginecring, Shijiazhuang University, Shijiazhuang, Hebei 050035, China | | LI Dongxiao | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China
Graduate Universiiy, Chinese Academy of Scienoes, Beijing
100049,China | | LIU Yueyan | Key Laboratory of Agricultural Water Resources, lnsitute of Genetics and Developmertal Biology of Chinese Academy of Sciences, Hebei Provincial Key Laboratory of Water-sating Agriculture, Shijiazhuang, Hebei 050021, China
Graduate Universiiy, Chinese Academy of Scienoes, Beijing
100049,China |
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| Abstract: |
| A greenhouse culture experiment was carried out to study the variation of the growth, yield, quality, leaf water potential and photosynthetic characteristic of tomato and soil salt accumulation under two irrigation methods(Furrow inigation and simplified infiltration irrigation)with two kinds of water(Fresh water and 5 g/L saline water) including four treatments (Furrow
irrigation with fresh water, Furrow irrigation with saline water,
Simplified infiltration irrigation with fresh water, Simplified infiltration irrigation with saline water). The results show that:(1)To compare the two imi-gation methods, the plant dry matter is significantly less in simplified infiltration irrigation than in furrow irrigation when fresh water is used, but there is not much difference between the two methods when saline water is used. In furrow irriga-tion, the plant dry matter is 7.06% less with saline water than with fresh water, but there is mot much difference between two kinds of water in simplified infiltration irrigalion,(2)In two irrigation methods, irrigation with saline water re-duces tomato yield, but not significantly. Compared with furrow
irrigation, simplified infiltration irrigation increases fruit yield by 3.3%, and the fruit quality is better in this method when saline water is used. (3)When fresh water is used, there is not significant difference in leaf waler potential and chlorophyll content between the two methods. When saline waler is used, leaf water potential decreases by 0.07~0.15 MPa, chlorophyll content drops by 1.65%~21.8%, and the decrease amplitude in simplified infiltration irrigation is much less than that in furrow irrigation. (4)In furrow irriga-tion, leaf photosynthesis rate, transpiration rate and stomatal conductance decrease by 14.29%,19.74%and 33.46% with saline water compared to fresh water, reaching significant level, but there is mot much variation in these indexes and the transpiration efficieney is greatly improved in simplified infiltration irrigation. (5)The salt accumulation in 0∽40 cm soil layer in simplified infiltration irrigation is less tban that in furrow irrigation when saline water is used. lt is prelimi-narily concluded that simplified infiltration irrigation with saline water for greenhouse tomato keeps the salt accumulation in root layer in low level, leaf water in good state, leaf photosynthesis rate and transpiration efficiency in high level, thus increasing fruit yield and improving its quality. |
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