Results 1 to 10 of about 10,132 (156)
Zhejiang Daxue xuebao. Lixue ban, 2013 采用LI-6400便携式光合作用系统，于2011年7月下旬的晴朗天气条件下，对浙江省天台山林窗、林缘、林下生境华东野核桃(Juglans cathayensis var. formosana)的光合生理特性及叶绿素荧光参数进行测定，并比较林窗生境中华东野核桃与其伴生植物山胡椒（Lindera glauca ）、玉兰(Magnolia denudata)、云锦杜鹃(Rhododendron fortunei）光合日进程的差异.结果表明：夏季，林窗生境的华东野核桃及主要伴生植物叶片的净光合速率(Pn ...
LIYue-ling(李月灵) +3 more
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Water Use Strategy of Reaumuria Songarica Population in Steppe Desert Region Based on Spatial Distribution [PDF]
, 2023 [Objective] The relationship between water adaptation and the distribution pattern of desert shrubs at the regional scale was studied and the process and mechanism of plant population response to environment in arid and semi-arid areas was analyzed in ...
Dong Lei +6 more
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Diversidad de orquídeas en la isla de Hainan en China: distribución y conservación [PDF]
, 2015 Orchidaceae are widely distributed in many terrestrial ecosystems except for polar and desert areas and constitute a “flagship group” in biological conservation.
He, R. X. +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2013 通过盆栽模拟酸雨喷淋实验，比较了不同酸雨酸度（pH值分别为2.5、3.5、4.5和5.6(CK))下，乌药(Lindera aggregata)幼苗光合作用、叶绿素荧光、膜脂过氧化以及抗氧化酶活性的差异，探讨酸雨胁迫对乌药幼苗生理生态特性的影响.结果表明：夏季，不同酸雨酸度处理下，净光合速率日变化均呈单峰曲线，日均净光合速率随着酸雨酸度的升高而降低.随酸雨酸度的升高，乌药幼苗的最大净光合速率、相对叶绿素含量均显著降低，且pH 2.5处理的影响更为显著.酸雨处理降低了乌药的光饱和点(LSP)，而pH 2 ...
WANGQiang(王强) +2 more
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Shuitu Baochi Xuebao, 2023 为探究不同生育时期土壤干旱对不同抗旱性小麦品种光合生理特性和产量的影响,以抗旱性弱品种"新春22号(XC22)"和抗旱性强品种"新春6号(XC6)"为试验材料,在土柱栽培和大田条件下,分别设置常规灌溉(CK)、分蘖期轻度干旱(W1)、分蘖期中度干旱(W2)、拔节期轻度干旱(M1)和拔节期中度干旱(M2)5种处理,研究小麦叶片叶面积指数(LAI)、叶绿素含量、气体交换参数和叶绿素荧光参数及地上部干物质积累、穗重与产量的变化。结果表明:抗旱性弱品种"XC22"受水分胁迫影响更大,复水后恢复能力较弱 ...
尹豪杰 +8 more
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Shuitu Baochi Xuebao, 2022 为探究不同微咸水水质对土壤盐分和作物生长的影响,在日光温室条件下,以生菜为供试对象开展盆栽试验,以CaSO4的饱和溶液为对照(CK),向去离子水中添加氯化盐形成不同阳离子组成的微咸水处理(Na+,TNa;Na+/K+比为1:1,TNa-K;K+,TK),各处理添加盐分总摩尔量相同,研究灌溉水中不同阳离子组成对土壤盐分、阳离子含量以及生菜光合特性、离子吸收和生长的影响。结果表明:(1)微咸水灌溉下生菜生长季末(播后80天)各处理0-20 cm土壤饱和提取液电导率(ECe)较播种前和播种后50天显著升高 ...
乔若楠 +7 more
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Effects of shading on the photosynthetic characteristics and leaf structure of Ranunculus ternatus Thunb. [PDF]
[Objective] The study aims to investigate the effects of different shading levels on the photosynthetic characteristics and leaf anatomical structure of wild plant Ranunculus ternatus Thunb.
WANG Li, ZHANG Gexiang, ZHAO Dandan
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Zhejiang Daxue xuebao. Lixue ban, 2004 细菌视紫红质是一种具有光驱动质于泵功能的跨膜蛋白，迄今为止己被当作光合作用、质子泵和七螺旋跨膜的受体模型进行研究.现代生物物理学的发展为研究细菌视紫红质的结构和功能提供了多种有效的方法和手段，目前已采用了博立叶红外光谱、共振拉曼光谱、核磁共振与实时振动光谱等多种分析方法来研究它的光电特性.细菌视紫红质具有较强的光敏感性，能产生光电信号，可进行快速的光化学反应等性质，这些特性已在众多科学领域得到应用并取得了突破性进展.另外，细菌视紫红质在光致色变、瞬态光电响应和非线性光学等性能上都具有良好的应用前景.
XUXiao-hong(徐晓红), WUMin(吴敏)
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Responses of potato root architecture and physiological indexes to drought stress at different growth stages [PDF]
[Objective] The present study aimed to elucidate the response of the potato root system to drought stress at different developmental stages. Additionally, the study sought to identify the underlying mechanisms that confer drought resistance in potato ...
CHEN Yanyun +4 more
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Photosynthetic responses to Solar UV radiation of Gracilaria lemaneiformis cultured under different temperatures and CO_2 concentrations [PDF]
, 2013 为了研究不同温度及CO2浓度下培养的大型海藻对紫外辐射的生理学响应,选取龙须菜(grACIlArIA lEMAnEIfOrMIS)作为实验材料。实验设置两个温度梯度(20℃和24℃),两种CO2浓度(390μl/l和1000μl/l)以及3种辐射处理,即可见光(PAr)处理(滤除紫外线A(uV-A)、紫外线b(uV-b),400—700 nM)、可见光加紫外线A(PA)处理(滤除uV-b,320—700nM)、PAb处理(全波长辐射280—700 nM)。结果表明,酸化 ...
徐军田, 李伟, 杨雨玲, 陈伟洲
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