土壤耕作层含氧量对黄瓜叶片生长特性的影响

为探究土壤耕作层不同深度含氧量对黄瓜各生育期叶片生长特性的影响,在大棚里进行盆栽试验,采用不同增氧灌溉方式（A2处理：每2 h加氧灌溉,A4处理：每4 h加氧灌溉,A8处理：每8 h加氧灌溉,CK：不加氧处理）对黄瓜各生育期进行增氧处理。测定土壤耕作层不同深度的含氧量和黄瓜不同生育期叶片叶绿素量、叶片中可溶性糖和可溶性蛋白质以及光合指标（净光合速率,气孔导度,胞间二氧化碳通量,蒸腾速率）。在黄瓜幼苗期,叶片叶绿素量、可溶性糖和可溶性蛋白质以及光合指标表现为A4处理〉A2处理〉A8处理〉CK,而初花期和结瓜期,表现为A2处理〉A4处理〉A8处理〉CK。在幼苗期时,土壤耕作层含氧量并不是越高越好,...

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Published inGuanʻgai paishui xuebao Vol. 36; no. 4; pp. 47 - 52
Main Author 沈维 胡德勇 姚帮松 肖卫华 张立成 黄正忠 程峰 阮三桂
Format Journal Article
LanguageChinese
English
Published Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2017
Subjects
Biochemical characteristics
Biochemistry
Carbon dioxide
Chlorophyll
Cucumbers
Flowering
Leaves
Oxygen
Oxygen content
Photosynthesis
Plants (botany)
Proteins
Stomata
Stomatal conductance
Sugar
Transpiration
光合特性
可溶性糖
可溶性蛋白质
叶片生长特性
叶绿素量
含氧量
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ISSN1672-3317

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Summary:为探究土壤耕作层不同深度含氧量对黄瓜各生育期叶片生长特性的影响,在大棚里进行盆栽试验,采用不同增氧灌溉方式（A2处理：每2 h加氧灌溉,A4处理：每4 h加氧灌溉,A8处理：每8 h加氧灌溉,CK：不加氧处理）对黄瓜各生育期进行增氧处理。测定土壤耕作层不同深度的含氧量和黄瓜不同生育期叶片叶绿素量、叶片中可溶性糖和可溶性蛋白质以及光合指标（净光合速率,气孔导度,胞间二氧化碳通量,蒸腾速率）。在黄瓜幼苗期,叶片叶绿素量、可溶性糖和可溶性蛋白质以及光合指标表现为A4处理〉A2处理〉A8处理〉CK,而初花期和结瓜期,表现为A2处理〉A4处理〉A8处理〉CK。在幼苗期时,土壤耕作层含氧量并不是越高越好,适量的氧气可以有效地促进叶片生长;在初花期与结瓜期,土壤耕作层含氧量越高越利于促进叶片生长。土壤耕作层含氧量与叶绿素量、叶片可溶性糖和可溶性蛋白质量以及光合速率呈明显正相关关系。
Bibliography:oxygen content; leaves growth; chlorophyll; solublesugar; soluble protein; photosynthetic characteristics
SHEN Wei,HU Deyong,YAO Bangsong,XIAO Weihua,ZHANG Licheng,HUANG Zhengzhong,CHENG Feng,RUAN Sangui（College of Engineering, Hunan Agricultural University, Changsha 410128, China）
This paper investigated the impact of oxygen content in different depths in the A horizon on traits and biochemical characteristics of cucumber leaves during different growth stages.Pot experiment with four treatments was conducted in a greenhouse： A2-oxigation after every two hours,A4-oxigation after every four hours,A8-oxigation after every eight hours,CK-without oxigation. In each treatment we measured the oxygen content in different depths in the A horizon, as well as the contents of chlorophyll, soluble sugar, soluble protein and photosynthetic charateristics（net photosynthetic rate, stomatal conductance, intercellular CO2, transpiration rate） in the leaves. The results showed that,in the seeding stage, the contents of chlorophy
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ISSN:1672-3317