钙和甜菜碱对钠盐胁迫下紫花苜蓿种子萌发特性的影响
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摘要
研究了钙和甜菜碱对钠盐胁迫下紫花苜蓿种子萌发特性的影响。结果表明:CaCl2、Ca(NO3)2和甜菜碱不能有效缓解250mmol/L NaCl胁迫对紫花苜蓿种子萌发的抑制效应,但能促进胁迫部分减轻后的恢复萌发,即较低浓度NaCl胁迫下的萌发。甜菜碱对25mmol/L Na2CO3胁迫下的萌发抑制效应有改进作用,但对恢复萌发无效果。钙和甜菜碱的处理效应与处理浓度、盐分胁迫强度等有关,处理效应与浓度之间并非线性关系。
In this paper we elucidated the effects of calcium and betaine on seed germination of Medicago sativa L.under sodium salt stress.The experiment revealed that CaCl2,Ca(NO3)2and betaine could not effectively ameliorate the inhibitory effect of 250mmol/L NaCl on germination of M.sativa,but could promote recovery germination under partly alleviated NaCl stress,i.e.the germination under lower concentration of NaCl stress.Application of betaine could improve the germination under 25mmol/L Na2CO3 stress,but did not affect the recovery germination.It demonstrated that the effect of calcium and betaine supplementation was associated with not only compound concentration,but also salt salinity,etc.The relationship between treatment effect and compound concentration was not linear.
In this paper we elucidated the effects of calcium and betaine on seed germination of Medicago sativa L.under sodium salt stress.The experiment revealed that CaCl2,Ca(NO3)2and betaine could not effectively ameliorate the inhibitory effect of 250mmol/L NaCl on germination of M.sativa,but could promote recovery germination under partly alleviated NaCl stress,i.e.the germination under lower concentration of NaCl stress.Application of betaine could improve the germination under 25mmol/L Na2CO3 stress,but did not affect the recovery germination.It demonstrated that the effect of calcium and betaine supplementation was associated with not only compound concentration,but also salt salinity,etc.The relationship between treatment effect and compound concentration was not linear.
引文
[1]李源,刘贵波,高洪文,等.紫花苜蓿种质耐盐性综合评价及盐胁迫下的生理反应[J].草业学报,2010,19(4):79-86.
[2]Cao J,Li X T,Kong X L,et al.Using alfalfa(Medicago sativa)to ameliorate salt-affected soils in Yingda irrigation district in Northwest China[J].Acta Ecologica Sinica,2012,32:68-73.
[3]刘寅哲,张义.不同温度下复合盐胁迫及恢复对紫花苜蓿种子萌发特性的影响[J].种子,2009,28(11):22-24.
[4]Basalah M O,Mohammad S.Effect of salinity and plant growth regulators on seed germination of Medicago sativa L.[J].Pakistan Journal of Biological Sciences,1999,2(3):651-653.
[5]许国经,汪景波,张义.短期NaCl与Na2CO3胁迫对紫花苜蓿种子萌发可恢复性的影响[J].中国农学通报,2011,27(27):109-112.
[6]Shahba M A,Qian Y L,Lair K D.Improving seed germination of saltgrass under saline conditions[J].Crop Science,2008,48:756-762.
[7]Khan M A,Gul B,Weber D J.Effect of germination regulating chemicals on seed germination of Halogeton glomeratus for alleviation of salinity stress[J].Pakistan Journal of Botany,2009,41(3):1 205-1 212.
[8]冯文新,张宝红.钙处理对盐胁迫下大豆种子萌发及其生理生化指标的影响[J].大豆科学,1997,16(1):48-53.
[9]尹增芳,何祯祥,陈梦阳,等.外源钙对NaCl胁迫下海滨锦葵种子萌发和幼苗生长的缓解效应[J].西北植物学报,2006,26(3):462-466.
[10]周泉澄,华春,周峰,等.外源甜菜碱对盐胁迫下盐角草和毕氏海蓬子萌发及幼苗生长的影响[J].干旱地区农业研究,2009,27(6):179-184.
[11]谷文英,祈新梅,李兴正,等.甜菜碱缓解盐胁迫菊苣种子萌发和芽苗生长的作用[J].中国农学通报,2012,28(29):10-14.
[12]王大昊,王旭,唐娇,等.不同含氮化合物对NaCl胁迫下紫花苜蓿种子萌发特性的影响[J].中国农学通报,2014,30(5):19-22.
[13]哈拉木吉,夏盛楠,崔连军,等.6种含氮化合物对Na2CO3胁迫下紫花苜蓿种子萌发特性的影响[J].中国农学通报,2014,30(14):1-5.
[14]Khan M A,Ungar I A,Gul B.Alleviation of Salinity-enforced seed dormancy in Atriplex prostrata[J].Pakistan Journal of Botany,2003,35(5):917-923.
[15]吕桂云,高洪波,王梅,等.钙对NaCl胁迫下西葫芦种子发芽特性的影响[J].种子,2007,26(2):83-86.
[16]朱义,何池全,杜玮,等.盐胁迫下外源钙对高羊茅种子萌发和幼苗离子分布的影响[J].农业工程学报,2007,23(11):133-137.
[2]Cao J,Li X T,Kong X L,et al.Using alfalfa(Medicago sativa)to ameliorate salt-affected soils in Yingda irrigation district in Northwest China[J].Acta Ecologica Sinica,2012,32:68-73.
[3]刘寅哲,张义.不同温度下复合盐胁迫及恢复对紫花苜蓿种子萌发特性的影响[J].种子,2009,28(11):22-24.
[4]Basalah M O,Mohammad S.Effect of salinity and plant growth regulators on seed germination of Medicago sativa L.[J].Pakistan Journal of Biological Sciences,1999,2(3):651-653.
[5]许国经,汪景波,张义.短期NaCl与Na2CO3胁迫对紫花苜蓿种子萌发可恢复性的影响[J].中国农学通报,2011,27(27):109-112.
[6]Shahba M A,Qian Y L,Lair K D.Improving seed germination of saltgrass under saline conditions[J].Crop Science,2008,48:756-762.
[7]Khan M A,Gul B,Weber D J.Effect of germination regulating chemicals on seed germination of Halogeton glomeratus for alleviation of salinity stress[J].Pakistan Journal of Botany,2009,41(3):1 205-1 212.
[8]冯文新,张宝红.钙处理对盐胁迫下大豆种子萌发及其生理生化指标的影响[J].大豆科学,1997,16(1):48-53.
[9]尹增芳,何祯祥,陈梦阳,等.外源钙对NaCl胁迫下海滨锦葵种子萌发和幼苗生长的缓解效应[J].西北植物学报,2006,26(3):462-466.
[10]周泉澄,华春,周峰,等.外源甜菜碱对盐胁迫下盐角草和毕氏海蓬子萌发及幼苗生长的影响[J].干旱地区农业研究,2009,27(6):179-184.
[11]谷文英,祈新梅,李兴正,等.甜菜碱缓解盐胁迫菊苣种子萌发和芽苗生长的作用[J].中国农学通报,2012,28(29):10-14.
[12]王大昊,王旭,唐娇,等.不同含氮化合物对NaCl胁迫下紫花苜蓿种子萌发特性的影响[J].中国农学通报,2014,30(5):19-22.
[13]哈拉木吉,夏盛楠,崔连军,等.6种含氮化合物对Na2CO3胁迫下紫花苜蓿种子萌发特性的影响[J].中国农学通报,2014,30(14):1-5.
[14]Khan M A,Ungar I A,Gul B.Alleviation of Salinity-enforced seed dormancy in Atriplex prostrata[J].Pakistan Journal of Botany,2003,35(5):917-923.
[15]吕桂云,高洪波,王梅,等.钙对NaCl胁迫下西葫芦种子发芽特性的影响[J].种子,2007,26(2):83-86.
[16]朱义,何池全,杜玮,等.盐胁迫下外源钙对高羊茅种子萌发和幼苗离子分布的影响[J].农业工程学报,2007,23(11):133-137.