羊草种子耐海水萌发特性初步研究
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摘要
近年来,海水稻研究引起社会广泛关注。羊草作为耐盐碱乡土草种资源,尚未见羊草耐海水有关试验报道。本文选择S19和S11两份羊草种质,研究了不同海水浓度对种子萌发特性的影响,结果表明,羊草种子萌发率随海水浓度的增加而降低,萌发率与海水浓度呈明显负相关; S19比S11更耐受海水抑制;羊草胚根长度、第一片真叶长度均随海水浓度的增加而受到明显抑制,胚芽鞘所受抑制较小。这些结果对羊草种质资源的耐海水评价和新品种培育具有重要参考价值。
In recent years,sea rice research has aroused widespread concern in society. Leymus chinensis as a salt-tolerant native grass species resource,there is no experimental report on the tolerance of Leymus chinensis to seawater. In this paper,two sheep grass germplasms,S19 and S11,were selected to study the effects of different seawater concentrations on seed germination characteristics. The following results were obtained: The germination rate of Leymus chinensis seeds decreased with the increase of seawater concentration,and the germination rate was significantly negatively correlated with seawater concentration. S19 is more resistant to seawater inhibition than S11. The length of radicle and the length of the first true leaf of Leymus chinensis were significantly inhibited with the increase of seawater concentration,and the inhibition of coleoptile was less. These results have important reference value for seawater evaluation and new variety cultivation of Leymus chinensis germplasm resources.
In recent years,sea rice research has aroused widespread concern in society. Leymus chinensis as a salt-tolerant native grass species resource,there is no experimental report on the tolerance of Leymus chinensis to seawater. In this paper,two sheep grass germplasms,S19 and S11,were selected to study the effects of different seawater concentrations on seed germination characteristics. The following results were obtained: The germination rate of Leymus chinensis seeds decreased with the increase of seawater concentration,and the germination rate was significantly negatively correlated with seawater concentration. S19 is more resistant to seawater inhibition than S11. The length of radicle and the length of the first true leaf of Leymus chinensis were significantly inhibited with the increase of seawater concentration,and the inhibition of coleoptile was less. These results have important reference value for seawater evaluation and new variety cultivation of Leymus chinensis germplasm resources.
引文
[1]张建锋,张旭东,周金星,等.世界盐碱地资源及其改良利用的基本措施[J].水土保持研究,2005,12(6):28-31.
[2]褚帆,刘宪斌,刘占广,等.天津近岸海域海水富营养化评价及其主成分分析[J].海洋通报,2015,3(4):107-112.
[3]隆艳喜,唐玙璠,吴楠,等.水稻耐盐调节机制的研究进展[J].分子植物育种,2018,16(7):2364-2370.
[4]王才林,张亚东,赵凌,等.耐盐碱水稻研究现状、问题与建议[J].中国稻米,2019,25(1):1-6.
[5]袁隆平团队在迪拜成功试种“沙漠海水稻”[J].福建稻麦科技,2018,36(3):29.
[6]刘公社,齐冬梅、刘辉.羊草种植实用技术问答[M].北京:中国农业出版社,2017.42.
[7]刘书,刘盼盼,杨伟光,等.羊草种子萌发相关基因的筛选及表达分析[J].草业学报,2018,27(11):58-66.
[8]刘公社,李晓峰,等.羊草种质资源研究[M].北京:科学出版社,2015.166-170.
[9]李倩,张庆分,程丽琴,等.羊草耐逆的分子生物学研究进展[J].草学,2018,(6):7-10.
[10]马红媛,梁正伟.不同p H值土壤及其浸提液对羊草种子萌发和幼苗生长的影响[J].植物学报,2007,(24):181-188.
[11]杨伟光,刘盼盼,袁光孝,等.种质及变温对羊草种子萌发的影响[J].草业学报,2018,27(7):103-111.
[12]Risheng C,Yunfeng C,Suying H,et al.Whole genome sequencing and comparative transcriptome analysis of a novel seawater adapted,salt-resistant rice cultivar-sea rice 86[J].BMC Genomics,2017,18(1):655-665.
[2]褚帆,刘宪斌,刘占广,等.天津近岸海域海水富营养化评价及其主成分分析[J].海洋通报,2015,3(4):107-112.
[3]隆艳喜,唐玙璠,吴楠,等.水稻耐盐调节机制的研究进展[J].分子植物育种,2018,16(7):2364-2370.
[4]王才林,张亚东,赵凌,等.耐盐碱水稻研究现状、问题与建议[J].中国稻米,2019,25(1):1-6.
[5]袁隆平团队在迪拜成功试种“沙漠海水稻”[J].福建稻麦科技,2018,36(3):29.
[6]刘公社,齐冬梅、刘辉.羊草种植实用技术问答[M].北京:中国农业出版社,2017.42.
[7]刘书,刘盼盼,杨伟光,等.羊草种子萌发相关基因的筛选及表达分析[J].草业学报,2018,27(11):58-66.
[8]刘公社,李晓峰,等.羊草种质资源研究[M].北京:科学出版社,2015.166-170.
[9]李倩,张庆分,程丽琴,等.羊草耐逆的分子生物学研究进展[J].草学,2018,(6):7-10.
[10]马红媛,梁正伟.不同p H值土壤及其浸提液对羊草种子萌发和幼苗生长的影响[J].植物学报,2007,(24):181-188.
[11]杨伟光,刘盼盼,袁光孝,等.种质及变温对羊草种子萌发的影响[J].草业学报,2018,27(7):103-111.
[12]Risheng C,Yunfeng C,Suying H,et al.Whole genome sequencing and comparative transcriptome analysis of a novel seawater adapted,salt-resistant rice cultivar-sea rice 86[J].BMC Genomics,2017,18(1):655-665.