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| 水分胁迫对海州常山抗逆生理特性的影响 | |
| 引用本文： | 魏娟,谢福春,王华田,陈才业,于文胜,宋黎,姜成平.水分胁迫对海州常山抗逆生理特性的影响[J].山东农业大学学报(自然科学版),2009,40(3). |
| 作者姓名： | 魏娟 谢福春 王华田 陈才业 于文胜 宋黎 姜成平 |
| 作者单位： | 1. 山东农业大学林学院,农业生态与环境实验室,山东,泰安,271018 2. 烟台市园林处,山东,烟台,264000 3. 烟台市种苗站,山东,烟台,264000 |
| 基金项目： | 山东省科技项目，山东省良种产业化项目，烟台市科技攻关项目 |
| 摘 要： | 采用持续自然干旱和涝害处理,研究了海州常山1年生盆栽根蘖苗的水分逆境生态生理特性.结果表明:水分胁迫对海州常山生长和形态特征、生理生化特性(渗调物质、细胞膜透性、酶活性等)影响很大.持续自然干旱胁迫至第14 d叶片出现萎蔫并不能在夜间恢复,复水后有60%棵苗木恢复生长;湿害胁迫下第7～10 d有6棵苗木下部2～3片叶变黄;在涝害胁迫下第8 d叶片失绿并逐渐脱落.随着水分胁迫强度的加大与时间的延长,各种水分胁迫处理的植株叶片相对含水量、叶片水势逐渐降低,细胞相对质膜透性逐渐增大,脯氨酸与可溶性糖含量逐渐增加,SOD酶活性出现先升高后降低的趋势.在干旱、涝害胁迫下,海州常山各个生理指标变化显著,在湿害胁迫下各个指标变化不显著.综合指标分析认为,海州常山是一种抗旱耐水湿性很强的树,耐涝能力较强但没有抗持续长时间水涝的能力. |
| 关 键 词： | 海州常山 干旱胁迫 水涝胁迫 生理指标 |
EFFECT OF WATER STRESS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF CLERODENDRUM TRICHOTONUM THUMB |
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| WEI Juan,XIE Fu-chun,WANG Hua-tian,CHEN Cai-ye,YU Wen-sheng,Song Li,JIANG Cheng-ping.EFFECT OF WATER STRESS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF CLERODENDRUM TRICHOTONUM THUMB[J].Journal of Shandong Agricultural University,2009,40(3). | |
| Authors: | WEI Juan XIE Fu-chun WANG Hua-tian CHEN Cai-ye YU Wen-sheng Song Li JIANG Cheng-ping |
| Institution: | 1.Agricaltural Ecological and Environmental Research Institute ofShandong Agricaltural University Forestry College Taian 271018;China;2.Garden Management Bureau of Yantai;Yantai 264000;3.Yantai Seedand Seedling Station;China |
| Abstract: | Ecological and physiological characteristics of 1-year-old,potted,root-originated seedlings of Clerodendrum trichotomum treated by durative drought and waterlogging stress were studied.Results showed that: morphological,physiological and biochemical characteristics of Clerodendrum trichotomum were affected by water stress by ceitain remarkable degrees.By the 14th day of sustaining natural drought stress,leaves wilted and could not automatically recover,but 60% of root-originated seedings recovered after rew... |
| Keywords: | Clerodendrum trichotomum drought stress waterlogging stress physiological indicators |
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