| 遮阴对北高丛越橘生长及其叶片保护酶活性的影响 |
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| 引用本文： | 魏鑫,魏永祥,王兴东,刘成,张舵,蒋明三.遮阴对北高丛越橘生长及其叶片保护酶活性的影响[J].南方农业学报,2016,47(6):970-974. |
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| 作者姓名： | 魏鑫 魏永祥 王兴东 刘成 张舵 蒋明三 |
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| 作者单位： | 辽宁省果树科学研究所,辽宁 营口,115009 |
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| 基金项目： | 国家科技支撑计划项目(2013BAD02B04-05)；辽宁省科技特派计划项目(2015103034)；辽宁省农业攻关计划项目(2014204007) |
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| 摘 要： | 【目的】分析遮阴处理对北高丛越橘生长及其保护酶活性的影响,为生产上合理采用遮阴技术促进花芽形成、提高产量提供参考依据。【方法】利用市售70%遮阳网(透光率30%)对北高丛越橘品种斯巴坦、泽西和伯克利进行遮阴处理,以自然光照为对照(CK),测定其1年生枝条的长度和粗度、花芽数/枝、花芽横径和纵径,同时测定叶片过氧化物酶(POD)、过氧化氢酶(CAT)、多酚氧化酶(PPO)和抗坏血酸氧化酶(ASP)活性。【结果】斯巴坦、泽西和伯克利3个越橘品种遮阴30 d后,花芽横径和纵径分别比对应的CK粗14.73%、25.42%、33.20%和38.34%、37.72%、44.94%,POD和PPO活性分别比CK提高53.23%、43.02%、44.88%和64.00%、33.33%、116.22%,且均极显著高于CK (P<0.01,下同);斯巴坦和伯克利的花芽数/枝分别比CK多26.77%和42.13%,差异极显著;泽西的花芽数/枝及CAT活性分别比CK提高23.60%和22.94%,差异显著(P<0.05,下同);伯克利的ASP活性比CK提高33.33%,差异显著;3个越橘品种1年生枝条的长度和粗度与CK差异不显著(P>0.05)。【结论】在辽东半岛进行北高丛越橘日光温室栽培时于9月下旬利用70%遮阳网遮阴30 d,可有效提高花芽形成数量和质量。
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| 关 键 词： | 越橘 温室栽培 适度遮阴 保护酶活性 花芽数量 |
Effect of shading on growth and protective enzymes activities of north highbush blueberry |
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| WEI Xin,WEI Yong-xiang,WANG Xing-dong,LIU Cheng,ZHANG Duo,JIANG Ming-san.Effect of shading on growth and protective enzymes activities of north highbush blueberry[J].Journal of Southern Agriculture,2016,47(6):970-974. |
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| Authors: | WEI Xin WEI Yong-xiang WANG Xing-dong LIU Cheng ZHANG Duo JIANG Ming-san |
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| Abstract: | Objective]The effects of shading on growth and protective enzymes of north highbush blueberry were ana-lysed, in order to provide references for promoting flower bud formation and improving yield. Method]Spartan, Jersey and Berkeley used as testing materials were shaded with commercially available sunshade net of 70%(light transmittance of 30%), with natural sunlight as control(CK). Then the characteristics of 1-year-old shoots were determined, including length and diameter, flower-bud number per shoot, longitudinal diameter and horizontal diameter of flower-bud and per-oxidase(POD), catalase(CAT), polyphenol oxidase(PPO) and ascorbic acid oxidase(ASP) activity. Result]Under shad-ing conditions of 30 days, the longitudinal diameters of Spartan, Jersey and Berkeley were 14.73%, 25.42% and 33.20%thicker than those of control, respectively, their horizontal diameters were 38.34%, 37.72%and 44.94%thicker than those of control, respectively, their POD activities were increased by 53.23%, 43.02%and 44.88%, respectively, their PPO ac-tivities were increased by 64.00%, 33.33% and 116.22% compared with those of control, respectively, so their POD and PPO activities were extremely significantly higher than those of control(P<0.01, the same below). The flower-bud numbers per shoot for Spartan and Berkeley were 26.77%and 42.13%higher than those of control, respectively, with extremely sig-nificant differences. And the flower-bud number per shoot and CAT activity for Jersey were increased by 23.60% and 22.94%compared with those of control, with significant differences (P<0.05, the same below), the ASP activity for Berkeley were increased by 33.33%compared with those of control, with significant difference. There were non-significant differences in the one-year-old shoot length and diameter of three blueberry varieties (P>0.05). Conclusion]When cultivating north highbush blueberry in greenhouse at Liaodong peninsul, using 70%shade net in late September for 30 days can effectively improve quantity and quality of flower-buds. |
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| Keywords: | blueberry greenhouse culture moderate shading activity of protective enzyme flower-bud number |
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