Results 61 to 70 of about 466 (97)
Shuitu Baochi Xuebao, 2016 以一年生刺槐（Robinia pseudoacacia）幼苗为研究对象，通过在生长季末期设置包含保持土壤含水量为田间持水量70%的对照组和停止水分补给的干旱处理组的盆栽试验，研究该时期干旱胁迫对刺槐幼苗非结构性碳水化合物（NSC）的影响。随着干旱胁迫时间的延长，处理组幼苗功能叶生物量、净光合速率、气孔导度均持续降低，至第12 d时分别降至对照组的10.91%，5.70%和3.63%，且整个试验期间其均显著低于基本保持不变的对照组（P＜0.01）。干旱处理组幼苗叶、枝、树干、粗根、细根可溶性糖含量均增加 ...
张
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基于APSIM模型小麦-玉米不同灌溉制度作物产量和水分利用效率分析
Shuitu Baochi Xuebao, 2021 针对海河平原地下水位持续下降和维持小麦—玉米两熟较高产量之间的矛盾，对不同降水年型小麦—玉米不同灌溉制度下产量和水分利用效率（WUE）进行模拟分析，结果对平衡该区域地下水可持续利用与粮食生产提供重要科学决策依据。利用研究区域站点长时间序列气象数据，以小麦不同水分处理地上部生物量、叶面积和周年土壤水分动态田间试验数据为基础，对APSIM小麦玉米遗传参数和土壤水分等相关参数进行了校准和验证。利用校准和验证的APSIM模型，对不同降水年型小麦—玉米不同生长阶段水分亏缺指数（CWDI）进行了分析 ...
薛佳欣 +5 more
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Effects of Planting Density on Starch Particle Size Distribution and Pasting Properties of Maize Kernels along Huaihe River [PDF]
The effects of different planting densities on the particle size distribution and pasting properties of starch granules in maize grains along the Huaihe River were analyzed.
CHENG Jia-hui +4 more
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Shuitu Baochi Xuebao, 2004 台湾桤木(Alnus formosana)原产台湾,是台湾地区重要的先锋造林树种,以及优良的水土保持和水源涵养树种.本文采用PEG6000渗透胁迫处理,研究了4种台湾桤木种源和2种四川桤木种源苗木光合作用对水分胁迫的反应,结果表明(1)随着水分胁迫程度的增加,叶片相对含水量明显下降,各种源叶片相对含水量下降程度为AC1>AC2>AF1>AF4>AF3>AF2;(2)与对照相比,在轻度(PEG10%)水分胁迫下,台湾桤木种源叶绿素含量呈上升趋势;而四川桤木种源叶片在整个水分胁迫过程中,叶绿素含量呈下降趋势;
朱万泽 薛建辉 王金锡
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Effects of Calcium and Environmental Factors on CAS (Ca2+-sensing receptor) Expression in Arabidopsis thaliana [PDF]
, 2010 环境胁迫如酸雨、铝毒、镉毒、盐渍、干旱及温度等已严重危害植物的生长，进而影响到人类的生产生活。已有研究显示，外源钙的施加能缓解植物在这些环境胁迫下的伤害，但是钙受体（Ca2+-sensingreceptor，CAS）在外源钙缓解环境胁迫中发挥何种作用及变化规律却仍然不清楚。 本文以模式植物拟南芥（Arabidopsisthaliana）哥伦比亚野生型为材料，结合生理指标测定、蛋白质印迹（Westernblot）等实验手段，研究了不同钙浓度在模拟酸雨、铝毒、镉毒、盐害、干旱、低温及高温胁迫下对拟南芥发芽率、
黄珊珊
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Shuitu Baochi Xuebao, 2005 三峡库区春玉米盆栽水肥耦合试验研究结果表明，水分胁迫导致玉米株高和叶面积指数降低，以拔节期受到影响最大；玉米产量与生物量呈显著正相关关系，产量与根重无显著正相关关系；水氮耦合效应显著，适宜水分和中氮处理下玉米的产量最高，玉米生长发育对氮肥的吸收存在一定的阈值，过多施用氮肥会加剧土壤干旱和作物干旱，水和钾耦合效应对玉米产量影响不显著；水分是影响玉米产量的主导因素，其次是氮效应和钾效应。
吕刚 史东梅
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浙江大学学报. 农业与生命科学版Gibberellin-regulated protein (GASA) plays a significant role in plant growth, development and stress resistance. In this study, we used the industrial hemp (Cannabis sativa) cultivar ‘Longma 5’ as the material to identify and characterize the CsGASAs ...
YANG Sen(杨森) +8 more
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Transcriptional regulation of suberin and its response to the environment [PDF]
[Objective] Suberin is a polyester type biopolymer that specifically deposits in tissues such as the endodermis, periderm, seed coat, and wound epidermis of plants.
AN Yongping, MA Rong, WANG Pei, ZHOU Yue
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浙江大学学报. 农业与生命科学版In order to investigate the physiological changes of double petaled Echinacea purpurea (L.) Moench under different soil moisture contents and the suitable soil moisture content for medicinal cultivation, the water-controlled pot experiment method was ...
张丽丽(ZHANG Lili) +4 more
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Induction of resistance to spot blotch in Hordeum vulgare L. by exogenous methyl jasmonate [PDF]
[Objective] The study aims to investigate the differential efficacy of anti-leaf spot in barley (Hordeum vulgare L.) of various concentrations of exogenous methyl jasmonate (MeJA) and understand the underlying mechanisms, thereby providing a foundation
LU Zonghui +5 more
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