| 水、氮对南疆‘红富士’苹果光合特性日变化的影响 |
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| 引用本文： | 孙霞,柴仲平,蒋平安. 水、氮对南疆‘红富士’苹果光合特性日变化的影响[J]. 北方果树, 2010, 0(1): 3-6. DOI: 10.3969/j.issn.1001-5698.2010.01.002 |
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| 作者姓名： | 孙霞 柴仲平 蒋平安 |
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| 作者单位： | 新疆农业大学草业与环境科学学院,乌鲁木齐,830052;新疆农业大学草业与环境科学学院,乌鲁木齐,830052;新疆农业大学草业与环境科学学院,乌鲁木齐,830052 |
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| 基金项目： | 自治区重大专项“果树营养特性与水肥耦合技术研究”(200731136-5);;新疆农业大学草业与环境科学学院青年教师科研启动基金;;土壤学自治区重点学科项目 |
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| 摘 要： | 设置不同水氮处理,对‘红富士’苹果的光合特性进行了研究。苹果净光合速率日变化曲线呈"双峰"型,且光合作用存在明显的"午休"现象。在低水分条件的限制下,不论氮肥施用量的高低对苹果的光合速率、气孔导度等提高作用不明显。在中度水分条件下,施用较多的氮肥可以提高气孔导度,利于光合的进行。在氮肥供应一定的条件下,中度的水分供应比高水和低水供应表现出更高的光合速率。在水分含量一定的条件下,中肥的水分利用效率高于高肥和无肥。
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| 关 键 词： | 水 氮 苹果 光合特性 |
Effects on Diurnal Variation of Photosynthetic Characteristics of Red Fuji Apples with Water and nitrogen in the South of Xinjiang |
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| SUN Xia,CHAI Zhong-ping,JIANG Ping-an. Effects on Diurnal Variation of Photosynthetic Characteristics of Red Fuji Apples with Water and nitrogen in the South of Xinjiang[J]. Northern Fruits, 2010, 0(1): 3-6. DOI: 10.3969/j.issn.1001-5698.2010.01.002 |
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| Authors: | SUN Xia CHAI Zhong-ping JIANG Ping-an |
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| Affiliation: | College of Grassland and Environmental Sciences Xinjiang Agriculture University;Urumqi 830052;China |
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| Abstract: | This article studied the effects on photosynthetic characteristics of red Fuji apples with the different water and nitrogen. The results indicated that diurnal variation curve of photosynthetic rate was doublepeak and appeared obvious phenomenon of the midday depression. In the low water it is not apparent for the nitrogen to increase the Pn and Gs whether the nitrogen was high or low or not. High nitrogen can increase the Gs and Pn. When the nitrogen was fixed,Pn of middle water was higher than the high an... |
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| Keywords: | Water Nnitrogen Apple Photosynthetic characteristics |
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