混合盐(NaCl+NaHCO_3)和NaCl对黑果枸杞种子萌发和幼苗生长的影响
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摘要
用不同浓度混合盐(NaCl+NaHCO_3)、NaCl分别处理黑果枸杞种子,研究不同盐分对黑果枸杞种子发芽率、发芽势、发芽指数、活力指数、相对盐害率、复萌率和黑果枸杞幼苗鲜重、干重、含水量、根长、茎长及根茎比的影响。结果表明:与CK(对照)相比,随着混合盐(NaCl+NaHCO_3)浓度的增加,黑果枸杞种子发芽率、发芽势均为下降趋势,发芽指数、活力指数及幼苗根长、芽长、根茎比、鲜重、干重、含水量、复萌率呈先上升后下降的趋势,相对盐害率呈上升趋势。随着NaCl浓度的增加,黑果枸杞种子发芽率、发芽势、发芽指数、活力指数及幼苗根长、根茎比、干重、含水量呈先上升后下降的趋势,茎长、鲜重呈下降趋势,相对盐害率、复萌率呈上升趋势。黑果枸杞种子对混合盐(NaCl+NaHCO_3)和NaCl具有不同的耐受性,通过比较发现黑果枸杞种子对NaCl耐受性较强。黑果枸杞幼苗在混合盐(NaCl+NaHCO_3)处理下生长情况好于NaCl处理,说明黑果枸杞幼苗更适应在混合盐(NaCl+NaHCO_3)环境中生长。
Lycium ruthenicum Murr seeds were treated with different concentrations of mixed salt(NaCl+NaHCO_3) and NaCl respectively. The effects of different salts on germination rate, germination potential, germination index, vigor index, relative salt damage rate, recovery percent and fresh weight, as well as dry weight, water content, root length, shoot height and root/shoot ratio of Lycium ruthenicum seedlings were studied. The results showed that: compared with control, with the increase of mixed salt(NaCl+NaHCO_3) concentration, the germination rate and germination potential of Lycium ruthenicum seeds showed a downward trend. The germination index, vigor index, root length, shoot height, root/shoot ratio, fresh weight, dry weight, water content and recovery percent of Lycium ruthenicum showed a trend of increasing firstly and then decreasing, while the relative salt damage rate showed an upward trend. With the increase of NaCl concentration, the germination rate, germination potential, germination index, vigor index and seedling root length, root/shoot ratio, dry weight and water content of Lycium ruthenicum showed a trend of increasing firstly and then decreasing, while the shoot height and fresh weight showed a trend of decreasing, while the relative salt damage rate and recovery percent showed an increasing trend. Lycium ruthenicum seeds have a different tolerance for mixed salt(NaCl+NaHCO_3) and NaCl. Through comparison, it is found that Lycium ruthenicum seeds have a stronger tolerance to NaCl. The growth of Lycium ruthenicum seedlings under mixed salt(NaCl+NaHCO_3) treatment was better than that under NaCl treatment, which indicated that Lycium ruthenicum seedlings are more suitable for growth under mixed salt(NaCl+NaHCO_3) environment.
Lycium ruthenicum Murr seeds were treated with different concentrations of mixed salt(NaCl+NaHCO_3) and NaCl respectively. The effects of different salts on germination rate, germination potential, germination index, vigor index, relative salt damage rate, recovery percent and fresh weight, as well as dry weight, water content, root length, shoot height and root/shoot ratio of Lycium ruthenicum seedlings were studied. The results showed that: compared with control, with the increase of mixed salt(NaCl+NaHCO_3) concentration, the germination rate and germination potential of Lycium ruthenicum seeds showed a downward trend. The germination index, vigor index, root length, shoot height, root/shoot ratio, fresh weight, dry weight, water content and recovery percent of Lycium ruthenicum showed a trend of increasing firstly and then decreasing, while the relative salt damage rate showed an upward trend. With the increase of NaCl concentration, the germination rate, germination potential, germination index, vigor index and seedling root length, root/shoot ratio, dry weight and water content of Lycium ruthenicum showed a trend of increasing firstly and then decreasing, while the shoot height and fresh weight showed a trend of decreasing, while the relative salt damage rate and recovery percent showed an increasing trend. Lycium ruthenicum seeds have a different tolerance for mixed salt(NaCl+NaHCO_3) and NaCl. Through comparison, it is found that Lycium ruthenicum seeds have a stronger tolerance to NaCl. The growth of Lycium ruthenicum seedlings under mixed salt(NaCl+NaHCO_3) treatment was better than that under NaCl treatment, which indicated that Lycium ruthenicum seedlings are more suitable for growth under mixed salt(NaCl+NaHCO_3) environment.
引文
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[15]王锦楠,陈进福,陈武生,等.柴达木地区野生黑果枸杞种群遗传多样性的AFLP分析[J].植物生态学报,2015,39(10):1003-1011.
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[18]王桔红,陈文.黑果枸杞种子萌发及幼苗生长对盐胁迫的响应[J].生态学杂志,2012,31(4):804-810.
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[20]罗君,彭飞,王涛,等.黑果枸杞(Lyciumruthenicum)种子萌发及幼苗生长对盐胁迫的响应[J].中国沙漠,2017,37(2):261-267.
[21]杨春武,贾娜尔·阿汗,石德成,等.复杂盐碱条件对星星草种子萌发的影响[J].草业学报,2006,15(5): 45-51.
[22]潘多锋,申忠宝,王建丽.碱性盐胁迫对白三叶种子萌发及幼苗生长的影响[J].北方园艺,2015(14):67-70.
[23]张晓倩,王康才,张彦南,等.外源NO对NaCl胁迫下水飞蓟种子萌发和幼苗生长生理的影响[J].中草药,2013,44(22):3216-3222.
[24]庄华蓉.单盐和混合盐胁迫对沙冬青种子萌发的影响[J].节水灌溉,2015(2):15-20.
[25]樊瑞苹,周琴,周波,等.盐胁迫对高羊茅生长及抗氧化系统的影响[J].草业学报,2012,21(1):112-117.
[26]宋娅丽,王克勤,张倩,等.NaCl胁迫对3种冷季型草坪草种子萌发和幼苗生长的影响[J].草原与草坪,2017,38(1):10-24.Effects of mixed salt (NaCl+NaHCO3) and NaCl on seed germination and seedling growth of
[2]米永伟,陈垣,郭凤霞,等.盐胁迫下黑果枸杞幼苗对外源甜菜碱的生理响应[J].草业科学,2017,29(9):1417-1421.
[3]苏彦宾,刘鲁江,亓德明,等.海水胁迫对2种景天种子萌发及幼苗生长的影响[J].中国农学通报,2017,33(3):88-93.
[4]杨利民,韩梅,李建东.土壤盐碱化对羊草草地植物多样性的影响[J].草地学报,1997,5(3):154-160.
[5]史文娟,杨军强,马媛.旱区盐碱地盐生植物改良研究动态与分析[J].水资源与水工程学报,2015,26(5):229-234.
[6]贾磊,安黎哲.花花柴脱盐能力及脱盐结构研究[J].西北植物学报,2004,24(3):510-515.
[7]罗廷彬,任崴,谢春虹.新疆盐碱地生物改良的必要性与可行性[J].干旱区研究,2001,18(1):46-48.
[8]张丽珍,牛伟,牛宇,等.柠条对盐碱地植被组成及土壤特性的影响[J].生态学报,2009, 29(9):4693-4699.
[9]张洁明,孙景宽,刘宝玉,等.盐胁迫对荆条、白蜡、沙枣种子萌发的影响[J].植物研究,2006,26(5):595-599.
[10]卢文晋,王占林,樊光辉.黑果枸杞在人工栽培条件下的形态变异[J].经济林研究,2014,32(1):171-174.
[11]罗佳佳,田涛,周程.盐胁迫下黑果枸杞未萌发种子活力探究[J].种子,2016,35(1):38-43.
[12]唐琼,德永军,张斌武,等.不同种源黑果枸杞种子萌发特性研究[J].林业科技通讯,2016(12):3-7.
[13]郭辉,沈宁东.柴达木盆地枸杞的资源状况及其栽培繁育研究进展[J].青海师范大学学报(自然科学版),2009(1):62-66.
[14]李永洁,李进,徐萍,等.黑果枸杞幼苗对干旱胁迫的生理响应[J].干旱区研究,2014,31(4):756-762.
[15]王锦楠,陈进福,陈武生,等.柴达木地区野生黑果枸杞种群遗传多样性的AFLP分析[J].植物生态学报,2015,39(10):1003-1011.
[16]彭飞,黄翠华,尤全刚,等.种植黑果枸杞对盐渍土盐分分布的影响[J].中国沙漠,2013,33(5):1406-1412.
[17]杨志江,李进,李淑珍,等.不同钠盐胁迫对黑果枸杞种子萌发的影响[J].种子,2008,27(9):19-22.
[18]王桔红,陈文.黑果枸杞种子萌发及幼苗生长对盐胁迫的响应[J].生态学杂志,2012,31(4):804-810.
[19]陈建勋,王小峰.植物生理学实验指导[M].广州:华南理工大学出版社,2002:1-16.
[20]罗君,彭飞,王涛,等.黑果枸杞(Lyciumruthenicum)种子萌发及幼苗生长对盐胁迫的响应[J].中国沙漠,2017,37(2):261-267.
[21]杨春武,贾娜尔·阿汗,石德成,等.复杂盐碱条件对星星草种子萌发的影响[J].草业学报,2006,15(5): 45-51.
[22]潘多锋,申忠宝,王建丽.碱性盐胁迫对白三叶种子萌发及幼苗生长的影响[J].北方园艺,2015(14):67-70.
[23]张晓倩,王康才,张彦南,等.外源NO对NaCl胁迫下水飞蓟种子萌发和幼苗生长生理的影响[J].中草药,2013,44(22):3216-3222.
[24]庄华蓉.单盐和混合盐胁迫对沙冬青种子萌发的影响[J].节水灌溉,2015(2):15-20.
[25]樊瑞苹,周琴,周波,等.盐胁迫对高羊茅生长及抗氧化系统的影响[J].草业学报,2012,21(1):112-117.
[26]宋娅丽,王克勤,张倩,等.NaCl胁迫对3种冷季型草坪草种子萌发和幼苗生长的影响[J].草原与草坪,2017,38(1):10-24.Effects of mixed salt (NaCl+NaHCO3) and NaCl on seed germination and seedling growth of
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