| 吸湿回干对冬小麦种子萌发和幼苗期根系形态及生理的影响 |
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| 引用本文： | 周宣材,刘义国,张玉梅,师长海,朱玉鹏,林琪. 吸湿回干对冬小麦种子萌发和幼苗期根系形态及生理的影响[J]. 干旱地区农业研究, 2018, 36(5): 28-33 |
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| 作者姓名： | 周宣材 刘义国 张玉梅 师长海 朱玉鹏 林琪 |
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| 作者单位： | 青岛农业大学农学院山东省旱作农业技术重点实验室 |
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| 基金项目： | 山东省重点研发计划项目“旱地土壤水肥增容保蓄关键技术研究”(2018GNC2305)；山东省渤海粮仓科技示范工程资金项目“黄河三角洲盐碱地粮果饲专用品种筛选及示范”(2017BHLC021) |
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| 摘 要： | 全球气候变化条件下,干旱发生的越来越频繁,冬小麦播种往往需要造墒。种子吸湿回干能够提高作物的抗旱性。以抗旱型小麦青麦6号、水肥型小麦济麦22为试验材料,设置"对照"、"干旱"、"吸湿回干"、"吸湿回干+干旱"4个处理,通过萌发期、两叶一心期胁迫试验,分析冬小麦发芽率、发芽势、发芽指数、株高、根长、根系总根长、根系总根体积、根系总表面积、根系平均根直径、超氧化物酶(SOD)活性、过氧化物酶(POD)活性、过氧化氢酶(CAT)活性、丙二醛(MDA)含量的变化。结果表明,吸湿回干处理虽降低冬小麦发芽率、发芽指数、株高、根长、根系总根长、根系总根体积、根系总表面积、根系平均根直径,却能提高济麦22的发芽势、SOD、POD、CAT活性,但吸湿回干处理对青麦6号的上述指标影响较小。由此看来,吸湿回干通过增强氧自由基清除酶的活性来提高水肥型冬小麦抗旱性,而对抗旱冬小麦影响较小。
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| 关 键 词： | 冬小麦；种子吸湿回干；根系；抗氧化酶 |
Effect of moisture-absorbing and dehydration on seed germination, seedling morphology and physiology of winter wheat |
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| ZHOU Xuan-cai,LIU Yi-guo,ZHANG Yu-mei,SHI Chang-hai,ZHU Yu-peng,LIN Qi. Effect of moisture-absorbing and dehydration on seed germination, seedling morphology and physiology of winter wheat[J]. Agricultural Research in the Arid Areas, 2018, 36(5): 28-33 |
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| Authors: | ZHOU Xuan-cai LIU Yi-guo ZHANG Yu-mei SHI Chang-hai ZHU Yu-peng LIN Qi |
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| Affiliation: | Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China,Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China,Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China,Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China,Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China and Qingdao Agricultural University, Agricultural College,Shandong Province Key Laboratory of dry farming technology, Qingdao, Shandong 266109, China |
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| Abstract: | |
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| Keywords: | wheat root system moisture-absorbing and dehydration antioxidant enzyme |
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