| Effect of different root zone temperature on growth development and N, P and K uptake of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2010.04.37 |
| Key Words: root zone temperature winter wheat growth development nutrition uptake |
| Author Name | Affiliation | | LIU Wei | College of Resources and Environment，Northwest A&F University，Yangling，Shaanxi 712100, China
Baoji Agricultural Technology Extension Center, Baoji，Shaanxi 721001，China | | YANG Junlin | Institute of Soil and Fertilizer，Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | XU Anmin | College of Resources and Environment，Northwest A&F University，Yangling，Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Chinese Ministry of Agriculture，Yangling, Shaanxi 712100，China | | ZHANG Jianping | Xi'an Chang’an District Agricultural Technology Extension Center, Xi'an, Shaanxi 710100，China | | TIAN Xiaohong | College of Resources and Environment，Northwest A&F University，Yangling，Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Chinese Ministry of Agriculture，Yangling, Shaanxi 712100，China | | GAO Yajun | College of Resources and Environment，Northwest A&F University，Yangling，Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Chinese Ministry of Agriculture，Yangling, Shaanxi 712100，China |
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| Abstract: |
| A pot experiment was conducted to investigate the effect of different root zone temperature on growth de-
velopment and N, P and K uptake of winter wheat in Hoagland solution. The results showed that low temperature re-
strained root development during pre-winter stage, winter period and tuming green stage. Root length, root volume, root biomass, leaf area, shoot biomass , nutrient uptake of low temperature treatments decreased significantly compared to nor-mal temperture treatments. Aboveground part of winter wheat was more sensitive to the decrease of root zone temperature than root during pre-winter stage. The reverse was true during tuming green stage. High temperature improved root growth while it trended to reduce shoot biomass and nutrients uptake during pre- winter stage and winter stage. High tem-perature reduced root length and volume while improved aboveground part growth of wheat during turming green stage. |
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