[1]黄蓉,申美,陈泰奇,等.低氮胁迫对青稞光合特性及农艺性状的影响[J].江苏农业科学,2026,54(1):111-116.
 Huang Rong,et al.Effects of low nitrogen stress on photosynthetic characteristics and agronomic traits of highland barley[J].Jiangsu Agricultural Sciences,2026,54(1):111-116.
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低氮胁迫对青稞光合特性及农艺性状的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第1期
页码:
111-116
栏目:
耕作栽培与生理生化
出版日期:
2026-01-05

文章信息/Info

Title:
Effects of low nitrogen stress on photosynthetic characteristics and agronomic traits of highland barley
作者:
黄蓉申美陈泰奇陈光富杨志宏胡松李丽华康志钰
云南农业大学农学与生物技术学院,云南昆明 650201
Author(s):
Huang Ronget al
关键词:
青稞光合特性农艺性状低氮胁迫
Keywords:
-
分类号:
S512.301
DOI:
-
文献标志码:
A
摘要:
为探究低氮胁迫对青稞光合特性及农艺性状的影响,采用二因素完全随机设计进行盆栽试验。因素A为青稞品系(滇青1号、滇青2号);因素B为氮浓度,以霍格兰完全营养液为基础设置3个梯度:N1(15 mmol/L)、N2(10 mmol/L)、N3(5 mmol/L),共6个处理,分别测定低氮胁迫下不同青稞品系在分蘖期、拔节期、抽穗期的光合特性及成熟期的农艺性状。结果表明,低氮胁迫对青稞的光合特性与农艺性状影响显著。经低氮胁迫处理后,青稞植株全氮含量下降明显,并在抽穗期达到最低。青稞叶片的总叶绿素含量在抽穗期均显著低于正常供氮处理。随着氮浓度的降低,净光合速率、气孔导度和蒸腾速率均表现为降低,而胞间CO2浓度表现为增加;青稞植株株高、分蘖数及穗粒数等农艺性状均低于正常供氮处理。滇青2号的总叶绿素含量、可溶性蛋白含量及农艺性状均高于滇青1号;滇青2号的全氮、可溶性糖含量则低于滇青1号。综上,低氮胁迫会抑制青稞植株地上部分的生长发育,并降低其光合性能;滇青2号较滇青1号具有更强的耐低氮与耐瘠薄能力。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2024-12-09
基金项目:云南省重大科技专项子课题(编号:202102AE090014-4)。
作者简介:黄蓉(1998—),女,贵州瓮安人,硕士研究生,主要从事麦类作物遗传育种研究。E-mail:2531369812@qq.com。
通信作者:康志钰,博士,教授,主要从事作物遗传育种及种子科学与工程方面的教学和科研工作。E-mail:kangzhiyu@ynau.edu.cn。
更新日期/Last Update: 2026-01-05