混合盐碱胁迫对橡胶草种子萌发的影响
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摘要
以野生橡胶草为研究材料,将中性盐(NaCl、Na_2SO_4)和碱性盐(NaHCO_3、Na_2CO_3)按不同比例和浓度配制成25组梯度混合盐溶液,采用室内培养法观察了混合盐胁迫对橡胶草种子萌发的影响。结果表明:随着盐浓度的增加,相对盐害率上升,发芽率、发芽势、发芽指数、活力指数和初生根长度均呈下降趋势;在相同盐浓度条件下,pH值高的混合盐对种子萌发的抑制作用更强;逐步回归分析表明,盐浓度是抑制种子萌发的主导因素,pH值的影响次之。
Taraxacum kok-saghyz Rodin from Xinjiang was used to study the effects of complex saltalkali stresses on seeds germination.The neutral salt(NaCl,Na_2SO_4)and the alkaline salts(NaHCO_3 and Na_2CO_3)were prepared into 25 groups of mixed salt solution according to different proportions and concentrations.Effects of mixed salt-alkali stress on seed germination of rubber grass were observed with incubation method in lab.The results showed that the salt injury rate increased,and the germination rate,germination potential,germination index,vigor index and the length of primary root showed a downward trend with the increase of salt concentration.The inhibitory effect of mixed salt with high pH value on seed germination was stronger under the same salt concentration condition.Stepwise regression analysis showed that salt concentration is the dominant factor in inhibiting seed germination,and the effect of pH is the second.
Taraxacum kok-saghyz Rodin from Xinjiang was used to study the effects of complex saltalkali stresses on seeds germination.The neutral salt(NaCl,Na_2SO_4)and the alkaline salts(NaHCO_3 and Na_2CO_3)were prepared into 25 groups of mixed salt solution according to different proportions and concentrations.Effects of mixed salt-alkali stress on seed germination of rubber grass were observed with incubation method in lab.The results showed that the salt injury rate increased,and the germination rate,germination potential,germination index,vigor index and the length of primary root showed a downward trend with the increase of salt concentration.The inhibitory effect of mixed salt with high pH value on seed germination was stronger under the same salt concentration condition.Stepwise regression analysis showed that salt concentration is the dominant factor in inhibiting seed germination,and the effect of pH is the second.
引文
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[5]沈光,魏殿文,曾祥俊,等.土壤pH对橡胶草生长及产量的影响[J].黑龙江农业科学,2017(09):37-41.
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[12]李玉梅,姜云天,董雪松.盐胁迫对东北薄荷种子萌发的影响[J].东北林业大学学报,2018,46(02):22-28,34.
[13]申忠宝,潘多锋,王建丽,等.混合盐碱胁迫对5种禾草种子萌发及幼苗生长的影响[J].草地学报,2012,20(05):914-920.
[14]王佺珍,刘倩,高娅妮,等.植物对盐碱胁迫的响应机制研究进展[J].生态学报,2017,37(16):5565-5577.
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[16]李莉,张一弓,贾纳提,等.盐碱胁迫下新疆野豌豆种子萌发及幼苗生理响应[J].草业学报,2016,25(09):46-53.
[17]Gao Z,Zhu H,Gao J,et al.Germination responses of Alfalfa(Medicago sativa L.)seeds to various salt-alkaline mixed stress[J].Africa Journal of agricultural Research,2011,6(16):3793-3803.
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[19]纪荣花,于磊,鲁为华,等.盐碱胁迫对芨芨草种子萌发的影响[J].草业科学,2011,28(2):245-250.
[20]张晓晖,林辰壹.新疆野生蒲公英对4种盐混合胁迫响应[J].新疆农业大学学报,2012,35(5):384-387.
[21]郭伟,王庆祥,于立河.盐碱混合胁迫对小麦幼苗阳离子吸收和分配的影响[J].麦类作物学报,2011,31(4):735-740.
[22]黄修梅,郝丽珍,惠霖,等.复合盐碱胁迫对蒙古高原野韭种子萌发的影响[J].北方园艺,2018(1):1-6.
[23]陈金元,陈学林,满吉琳,等.混合盐碱胁迫对红砂种子萌发的影响[J].西北农林科技大学学报(自然科学版),2016,44(5):113-119.
[24]蔺吉祥,高战武,王颖,等.盐碱胁迫对紫花苜蓿种子发芽的协同影响[J].草地学报,2014,22(2):312-319.
[25]高战武,蔺吉祥,邵帅,等.复合盐碱胁迫对燕麦种子发芽的影响[J].草业科学,2014,31(03):451-456.
[2]仇键,张继川,罗世巧,等.橡胶草的研究进展[J].植物学报,2015,50(01):133-141.
[3]梁素钰,王文帆,刘滨凡,等.能源橡胶草的综合利用研究[J].能源研究与信息,2010,26(4):219-224.
[4]李苗,郑国保,朱金霞,等.盐胁迫对橡胶草生长及生理指标的影响[J].北方园艺,2018(12):101-104.
[5]沈光,魏殿文,曾祥俊,等.土壤pH对橡胶草生长及产量的影响[J].黑龙江农业科学,2017(09):37-41.
[6]文振旺.新疆土壤地理[M].北京:科学出版社,1965:429.
[7]李新新,宋有桂.近55年新疆昭苏县气候变化特征及成因分析[J].干旱区资源与环境,2013,27(10):133-138.
[8]刘晓静,张晓磊,齐敏兴,等.混合盐碱对紫花苜蓿种子萌发及幼苗期叶绿素荧光特性的影响[J].草地学报,2013,21(03):501-507.
[9]徐芬芬,徐卫红,俞晓凤,等.混合盐碱胁迫对小白菜种子萌发的影响[J].生态科学,2010,29(06):568-572.
[10]刘建霞,温日宇,张晴雯,等.3种盐胁迫下静乐藜麦种子与幼苗抗逆标的检测[J].种子,2018,37(02):82-85.
[11]刘治,刘子凡,黄洁,等.木薯叶片及根际土水浸液对花生发芽的化感效应[J].种子,2018,37(03):28-31.
[12]李玉梅,姜云天,董雪松.盐胁迫对东北薄荷种子萌发的影响[J].东北林业大学学报,2018,46(02):22-28,34.
[13]申忠宝,潘多锋,王建丽,等.混合盐碱胁迫对5种禾草种子萌发及幼苗生长的影响[J].草地学报,2012,20(05):914-920.
[14]王佺珍,刘倩,高娅妮,等.植物对盐碱胁迫的响应机制研究进展[J].生态学报,2017,37(16):5565-5577.
[15]Debez A,Hamed BK,Grignon C,et al.Salinity effects on germination,growth,and seed production of the halophyte Cakile maritime[J].Plant and Soil,2004,262:179-189.
[16]李莉,张一弓,贾纳提,等.盐碱胁迫下新疆野豌豆种子萌发及幼苗生理响应[J].草业学报,2016,25(09):46-53.
[17]Gao Z,Zhu H,Gao J,et al.Germination responses of Alfalfa(Medicago sativa L.)seeds to various salt-alkaline mixed stress[J].Africa Journal of agricultural Research,2011,6(16):3793-3803.
[18]Meloni DA,Gulotta MR,Martinez CA.Salinity tolerance in Schinopsis quebracho colorado:Seed gemination,growth,ion relations and metabolic responses[J].Journal of Arid Environments,2008,72(10):1785-1792.
[19]纪荣花,于磊,鲁为华,等.盐碱胁迫对芨芨草种子萌发的影响[J].草业科学,2011,28(2):245-250.
[20]张晓晖,林辰壹.新疆野生蒲公英对4种盐混合胁迫响应[J].新疆农业大学学报,2012,35(5):384-387.
[21]郭伟,王庆祥,于立河.盐碱混合胁迫对小麦幼苗阳离子吸收和分配的影响[J].麦类作物学报,2011,31(4):735-740.
[22]黄修梅,郝丽珍,惠霖,等.复合盐碱胁迫对蒙古高原野韭种子萌发的影响[J].北方园艺,2018(1):1-6.
[23]陈金元,陈学林,满吉琳,等.混合盐碱胁迫对红砂种子萌发的影响[J].西北农林科技大学学报(自然科学版),2016,44(5):113-119.
[24]蔺吉祥,高战武,王颖,等.盐碱胁迫对紫花苜蓿种子发芽的协同影响[J].草地学报,2014,22(2):312-319.
[25]高战武,蔺吉祥,邵帅,等.复合盐碱胁迫对燕麦种子发芽的影响[J].草业科学,2014,31(03):451-456.
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