|Table of Contents|

Effect of Different Soil Moisture Contents on Net Photosynthetic Rate and Antioxidant Abilities in Huangguan Pear Leaves(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年10期
Page:
7-11
Research Field:
Publishing date:

Info

Title:
Effect of Different Soil Moisture Contents on Net Photosynthetic Rate and Antioxidant Abilities in Huangguan Pear Leaves
Author(s):
ZHANG Xiao-feng; HAN Xiang; ZHANG Jian-guang
College of Horticulture，Agricultural University of Hebei，Pear Engineering and Technology Research Center of Hebei Province,Baoding，Hebei 071000
Keywords:
pear; brassinosteroid(BR); net photosynthetic rate; antioxidant; drought stress
PACS:
S 661.2
DOI:
-
Abstract:
With two years old potted ‘Huangguan’ pear trees as material，the effect of different soil moisture contents and spraying brassinosteroid(BR) on leaf Pn and antioxidant ability in leaves were investigated in ‘Huangguan’ pears.The results showed that，when the soil moisture content maintained about 75% or so，the maimum leaf Pn was observed，being 22.0%,78.5% and 70.9% higher than 65%，55% and 40% soil moisture treatments，respectively.As soil moisture contents decreased，the net photosynthetic rates reduced but when the content reached 55% or below，the leaf Pn remained a lower level without significant changes.Moreover，when soil moisture content maintained 75% or so，a lower level of SOD and APX activiy was found but as soil moisture contents decreased，the activity of both enzymes increased and when the soil moisture content reached 55%，the activity achieved the maximum.However，when the soil moisture content decreased to 40%，the activity reduced significantly.Under stressed or unstressed soil moisture conditions，spraying BR could significantly increase leaf SOD and APX activities，with SOD activity from four soil moisture treatments increasing by 39.1%~113.3% and APX by 28.8%~141.7%.Furthermore，when the soil moisture stress(55% and 40%) occurred，the AsA contents in leaves rised.In addition，applying BR could change the diurnal leaf Pn pattern.

References:

[1]张玉星.果树栽培学各论[M].北京:中国农业出版社,2003:45.
[2]张玉萍,刘威生,孙少春,等.油菜素内酯在果树上的应用研究进展[J].安徽农业科学,2010,38(12):61536154,6157.
[3]冯朝红,李凯荣,张鹏文,等.干旱胁迫下油菜素内酯对文冠果苗木抗氧化酶活性和抗氧化剂含量的影响[J].干旱地区农业研究,2008,26(4):152-155.
[4]Li K R，Wang H H,Han G,et al.Effects of brassinolide on the survival，growth and drought resistance of Robinia pseudoacacia seedlings under waterstress[J].New Forests，2008,35(3):255.
[5]Abdel A，ElMashad A,Mohamed H I.Brassinolide alleviates salt stress and increases antioxidant activity of cowpea plants (Vigna sinensis)[J].Protoplasma,2012,249(3):625-635.
[6]Vardhini B V.Effect of brassinolide on certain enzymes of soughum growth in saline soils of Karaikal[J].Journal of Phytology,2012,4(2):30-33.
[7]Li K R，Feng C H.Effects of brassinolide on drought resistance of  Xanthoceras sorbifolia seedlings under water stress[J].Acta Physiologiae Plantarum Acta Physiol Plant，2011,33(4):1293-1300.[8]张钰娴,李凯荣,牛振华.天然油菜素内酯对黄土丘陵区富士苹果集中生理指标的影响[J].干旱地区农业研究,2005,23(5):114-117.
[9]邱春莲,齐国辉.植物生长调节剂在果树生产中的应用(上)[J].北京农业,2004(11):24-25.
[10]王爱国,罗广华.植物的超氧化物自由基与羟胺反应[J].植物生理学通讯,1990(6):55-57.
[11]王国泽,刘永臣.干旱对梨树叶片质膜氧化还原系统的影响[J].华北农学报,2007,22(6):127-129.
[12]Marsal J,Girona J.Effects of water stress cycles on turgor maintenance processes in pear leaves (Pyrus communis) [J].Tree Physio,1997,17(5):327-33.
[13]Li Y C,Fan W G,Chen S L.Soil drought stress on membrane lipid peroxidation and antioxidant enzymes in pear rootstock[J].Journal of  Zhejiang Forestry College,2008,25(4):437-441.
[14]Sharma S,Sharma N.Changes in leaf water potential，electrolyte leakage，antioxidant system and anatomical characteristics in ‘Flemish Beauty’ pear induced by paclobutrazol during drought stress[J].Advances in Horticultural Science,2009,23(1):8-12.
[15]陶蕊,宋洪伟,李莉,等.水分胁迫对山梨净光合速率和光合有效辐射的影响[J].现代农业科学,2008,15(12):41-43.
[16]王进,欧毅,周贤文,等.土壤水分胁迫对梨叶片生理生化指标的影响[J].西南农业学报,2008,21(1):62-65. [17]王国泽.水分胁迫对梨树叶片质膜氧化还原系统的影响[J].干旱地区农业研究,2009,27(4):90-93.
[18]孙继亮,李六林,陶书田,等.干旱胁迫和复水对梨幼树生理特性的影响[J].应用与环境生物学报,2012,18(2):218-223.
[19]胡春霞,汤洁,王丽.水分胁迫对南果梨叶片生理生化变化的影响[J].安徽农业科学，2008,36(12):4836-4838.
[20]龚吉蕊,赵爱芬,张立新,等.干旱胁迫下几种荒漠植物抗氧化能力的比较研究[J].西北植物学报,2004,24(9):1570-1577.
[21]何文亮,黄承红,杨颖丽,等.盐胁迫过程中抗坏血酸对植物的保护功能[J].西北植物学报,2004,24(13):2196-2201.
[22]郝再彬,苍晶,徐仲.植物生理实验[M].哈尔滨:哈尔滨大学出版社,2004:101-108.
[23]赵岩丽.梨树的耗水规律及水分利用研究[D].邯郸:河北工程大学,2009:35.
[24]蒋明义,郭少川.水分亏缺诱导的氧化胁迫和植物的抗氧化作用[J].植物生理学通讯,1996,32(2):144-150. [25]林植芳,李双顺,张东林,等.番茄氧化和过氧化氢作用的变化[J].植物生理学报,1988,30(4):382-387.

Memo

Memo:
-
Last Update: 2014-08-14