| 本文已被：浏览 510次 下载 251次 |
码上扫一扫！ |
| 苗期甜高粱和玉米对土壤Pb胁迫的响应及抗性评价 |
|
陈梦妮1, 杜天庆1, 张泽宇2, 薛建福1, 崔福柱1, 杨珍平1, 崔振魁1, 祁剑英1
|
|
|
| (1.山西农业大学 农学院, 山西 太谷 030801;2.山西农业大学 信息学院, 山西 太谷 030801) |
|
| 摘要: |
| 为研究甜高粱和玉米受土壤Pb胁迫后植株生长状况和生理指标变化的规律，采用盆栽毒理试验方法，并运用隶属函数值法对其抗性进行了综合评定。结果表明：土壤Pb胁迫下，甜高粱和玉米的株高、生物量和叶绿素含量下降，而叶绿素a/b的值升高，MDA和脯氨酸的含量增多，细胞膜透性增加，各指标变化幅度不同，单一指标难以评判作物的抗性。而利用隶属函数值法综合评价，晋甜杂1号、晋甜杂2号、晋甜杂3号和大丰30的隶属函数综合评价值依次为0.327 2、0.287 0、0.885 8和0.274 8，则对铅的抗性能力综合评定结果为：晋甜杂3号 > 晋甜杂1号 > 晋甜杂2号 > 大丰30。因此，甜高粱晋甜杂3号抗性最强，更适宜在Pb污染土壤上种植。 |
| 关键词: 甜高粱 玉米 铅 耐性系数 隶属函数值 |
| DOI：10.11841/j.issn.1007-4333.2016.11.03 |
| 投稿时间：2016-02-26 |
| 基金项目:山西省自然科学基金（2014011031-1）；公益性行业（农业）科研专项（201503121-07）；科技支撑计划（2015BAD23B04-02） |
|
| Resistance evaluation and response of sweet sorghum and corn during seedling stage under Pb stress |
|
CHEN Meng-ni1, DU Tian-qing1, ZHANG Ze-yu2, XUE Jian-fu1, CUI Fu-zhu1, YANG Zhen-ping1, CUI Zhen-kui1, QI Jian-ying1
|
| (1.College of Agriculture, Shanxi Agricultural University, Taigu 030801, China;2.College of Information, Shanxi Agricultural University, Taigu 030801, China) |
| Abstract: |
| Based on toxicology,pot experiment was conducted to analyze the changes in growth status and physiologic indexes of sweet sorghum and corn under Pb stress.The subordinate function was used to make comprehensive evaluation.The results showed that:Under Pb stress,plant height,biomass and chlorophyll content were decreased,chlorophyll a/b,the content of MDA,the content of proline and permeance of cell membrane were increased.Different indicators showed different amplitude of variation.Single indicator failed to evaluate the resistance of crop.However,by using the method of subordinate function to evaluate plant's resistance,the value of Jintianza 1,Jintianza 2,Jintianza 3 and Dafeng 30 were 0.327 2,0.287 0,0.885 8 and 0.274 8,respectively.The comprehensive evaluations of resistance showed that Jintianza 3 > Jintianza 1 > Jintianza 2 > Dafeng 30.The results indicated that Jintianza 3,the strongest resistance variety,was suitable to be cultivated at Pb contaminated soil. |
| Key words: sweet sorghum corn Pb tolerance coefficient subordinate function value method |
