|本期目录/Table of Contents|

[1]缪福俊,罗珺,王宏虬,等.马铃薯幼苗的抗旱特性及磷钾肥对其抗旱性的影响[J].江苏农业科学,2015,43(05):92-94.
 Miao Fujun,et al.Drought-resistant characters of potato seedlings and effect of phosphate and potash fertilizer on its drought resistance[J].Jiangsu Agricultural Sciences,2015,43(05):92-94.
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马铃薯幼苗的抗旱特性及磷钾肥对其抗旱性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第43卷
期数:
2015年05期
页码:
92-94
栏目:
遗传育种与耕作栽培
出版日期:
2015-05-25

文章信息/Info

Title:
Drought-resistant characters of potato seedlings and effect of phosphate and potash fertilizer on its drought resistance
作者:
缪福俊1 罗珺2 王宏虬3 杨斌4 王连春3
1.云南省林业科学院/国家林业局云南珍稀濒特森林植物保护和繁育重点实验室/云南省森林植物培育与开发利用重点实验室,云南昆明650201;2.昆明市西山区农林局,云南昆明 650118; 3.西南林业大学,云南昆明 650224;4.西南林业大学/云南省高校森林灾害预警与控制重点实验室,云南昆明 650224
Author(s):
Miao Fujunet al
关键词:
马铃薯干旱胁迫磷钾肥生理指标
Keywords:
-
分类号:
Q945.78
DOI:
-
文献标志码:
A
摘要:
研究马铃薯幼苗干旱适应机理和外施磷钾肥抗旱性能,为马铃薯耐旱品种的选育以及通过施用磷钾肥提高其抗旱性能提供理论依据。采用温室盆栽技术,通过不同梯度的干旱胁迫和不同时间的干旱锻炼处理,测定马铃薯幼苗的相关生理指标,并进一步外施磷钾肥后测定抗旱系数。结果表明,在4种干旱胁迫处理下,马铃薯幼苗各器官(根、茎、叶)的干物质积累、干物质积累总量、相对生长率均受到抑制,呈现下降趋势;生物量的分配方式(根冠比)发生改变,呈现生物量向根部运输,水分利用效率随干旱胁迫的增加而提高;适度的干旱锻炼(1、2 h)能降低SOD活性,但能提高POD和CAT活性,而过度的干旱锻炼(3、4 h)能提高SOD活性,但降低了POD和CAT活性;外施浓度为0.3%的磷钾肥,在重度干旱胁迫下可显著提高马铃薯的抗旱性能。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2014-11-04
基金项目:云南省教育厅科研基金重点项目(编号:2013Z089)。
作者简介:缪福俊(1986—),男,甘肃兰州人,硕士,研究实习员,主要从事植物生理方面的研究。Tel:(0871)65211539;E-mail:miaofujun@yeah.net。
通信作者:王宏虬,硕士,工程师,主要从事植物保护研究。Tel:(0871)63864550;E-mail:swfcwhq@sina.com。
更新日期/Last Update: 2015-05-25