土壤改良剂对干旱胁迫下青稞幼苗形态及生理特性的影响
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摘要
采用盆栽试验研究了施用菌剂(2 g/kg土)、腐植酸钾(2 g/kg土)对干旱胁迫下青稞幼苗形态及生理特性的影响。结果表明,腐植酸钾和菌剂均能有效促进干旱胁迫下青稞幼苗的生长,其中腐植酸钾效果更好,不仅能提高青稞幼苗株高、鲜重、干重、根冠比、根平均直径、茎粗和叶面积、根的投影面积、表面积、体积及分支数等形态指标,也提高了根系活力、叶绿素含量、过氧化物酶、超氧化物歧化酶、过氧化氢酶活性,降低丙二醛含量。
The pot experiment was conducted to study the effects of microbial inoculum(2 g/kg) and potassium humate(2 g/kg) on the morphological and physiological indexes of highland barley seedlings under drought stress. The results showed that potassium humate and microbial inoculum could effectively promote the growth of highland barley seedlings under drought stress. With better effect, potassium humate could not only improve the morphologic indexes such as plant height, fresh weight, dry weight, root/shoot ratio, average root diameter, stem diameter, leaf area, and projection area, surface area, volume and branch number of root, but also increase root activity, chlorophyll content and activities of peroxidase, superoxide dismutase and catalase, and reduce malondialdehyde content.
The pot experiment was conducted to study the effects of microbial inoculum(2 g/kg) and potassium humate(2 g/kg) on the morphological and physiological indexes of highland barley seedlings under drought stress. The results showed that potassium humate and microbial inoculum could effectively promote the growth of highland barley seedlings under drought stress. With better effect, potassium humate could not only improve the morphologic indexes such as plant height, fresh weight, dry weight, root/shoot ratio, average root diameter, stem diameter, leaf area, and projection area, surface area, volume and branch number of root, but also increase root activity, chlorophyll content and activities of peroxidase, superoxide dismutase and catalase, and reduce malondialdehyde content.
引文
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[14] 卜令铎, 张仁和, 韩苗苗, 等. 干旱复水激发玉米叶片补偿效应的生理机制[J]. 西北农业学报, 2009, 18(2):88-92.
[15] 党芳芳, 冯文新, 尹美强, 等. 硅钙肥与纳米碳对干旱胁迫下小麦幼苗形态及生理的影响[J]. 山西农业大学学报(自然科学版), 2017, 37(3): 164-168.
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[17] 王玉珏, 付秋实, 郑禾, 等. 干旱胁迫对黄瓜幼苗生长、光合生理及气孔特征的影响[J]. 中国农业大学学报, 2010, 15(5): 12-18.
[18] 葛体达, 隋方功, 白莉萍, 等. 水分胁迫下夏玉米根叶保护酶活性变化及其对膜脂过氧化作用的影响[J]. 中国农业科学, 2005,38(5): 922-928.
[2] 龚璞, 李宗震, 岳慧芳, 等. 不同小麦抗旱品种种子萌发的根系特征及其与主要激素含量的关系[J]. 河南农业大学学报, 2018, 52(1): 16-21.
[3] 陈义群, 董元华. 土壤改良剂的研究与应用进展[J]. 生态环境, 2008,17(3): 1282-1289.
[4] 吴珏. 微生物土壤改良剂对设施黄瓜连作障碍修复作用的研究[D]. 上海:上海交通大学, 2011.
[5] Jiang X J, De-Ti A X. Combining ridge with no-tillage in lowland rice-based cropping system:long-term effect on soil and rice yield [J]. Pedosphere, 2009, 19(4): 515-522.
[6] Tan K H. The release of silicon, aluminum, and potassium during decomposition of soil minerals by humic acid[J]. Soil Science, 1980, 129(1):5-11.
[7] Anita Maienza, Erland B??th, Silvia Rita Stazi, et al. Microbial dynamics after adding bovine manure effluent together with a nitrification inhibitor (3,4 DMPP) in a microcosm experiment[J]. Biology and Fertility of Soils, 2014, 50(6): 869-877.
[8] 高俊凤. 植物生理学指导[M]. 北京: 高等教育出版社, 2006.
[9] 郑炳松. 现代植物生理生化研究技术[M]. 北京:气象出版社, 2006.
[10] 吴殊菊. 爱丰有机腐殖酸液肥在小麦上的试验效果研究[J]. 黑龙江农业科学, 2004(2): 23-24.
[11] 代明, 胡兆平, 陈海宁, 等. 腐殖酸、DMPP复配复合肥对玉米生长的影响[J]. 江苏农业科学, 2017, 45(22): 58-60.
[12] 陈少裕, 刘杰. 水分胁迫对甘蔗叶片线粒体膜流动性的影响及其与膜脂过氧化的关系[J]. 植物生理学报, 1991,17(3): 285-289.
[13] 蒋明义, 荆家海, 王韶唐. 渗透胁迫对水稻光合色素和膜脂过氧化的影响[J]. 西北农业大学学报, 1991, 19(1): 79-84.
[14] 卜令铎, 张仁和, 韩苗苗, 等. 干旱复水激发玉米叶片补偿效应的生理机制[J]. 西北农业学报, 2009, 18(2):88-92.
[15] 党芳芳, 冯文新, 尹美强, 等. 硅钙肥与纳米碳对干旱胁迫下小麦幼苗形态及生理的影响[J]. 山西农业大学学报(自然科学版), 2017, 37(3): 164-168.
[16] 严萍. 含腐殖酸调理剂对小麦、水稻幼苗生长和产量的影响[D]. 扬州:扬州大学, 2016.
[17] 王玉珏, 付秋实, 郑禾, 等. 干旱胁迫对黄瓜幼苗生长、光合生理及气孔特征的影响[J]. 中国农业大学学报, 2010, 15(5): 12-18.
[18] 葛体达, 隋方功, 白莉萍, 等. 水分胁迫下夏玉米根叶保护酶活性变化及其对膜脂过氧化作用的影响[J]. 中国农业科学, 2005,38(5): 922-928.