温度对高寒地区发草种子萌发和幼苗生长的影响

doi:10.11733/j.issn.1007-0435.2023.03.016

草地学报 ›› 2023, Vol. 31 ›› Issue (3): 760-768.DOI: 10.11733/j.issn.1007-0435.2023.03.016

温度对高寒地区发草种子萌发和幼苗生长的影响

孟思宇, 李晓青, 魏小星, 刘文辉, 张永超, 鲍根生

青海大学畜牧兽医科学院, 青海省青藏高原优良牧草种质资源利用重点实验室, 青海西宁 810016

收稿日期:2022-07-16 修回日期:2022-10-26 出版日期:2023-03-15 发布日期:2023-04-01
通讯作者: 鲍根生,E-mail:baogensheng2008@hotmail.com
作者简介:孟思宇(1997-),女,汉族,辽宁铁岭人,硕士研究生,主要从事草地有害生物防控的研究,E-mail:2012370280@qq.com
基金资助:
青海省科技创新平台建设专项“青藏高原草种质资源创新与利用服务平台”（2021-ZJ-T01）；国家自然科学基金项目（32060398、U21A20239）资助

Effects of Temperature on Seed Germination and Seedling Growth of Deschampsia caespitosa in Alpine Regions

MENG Si-yu, LI Xiao-qing, WEI Xiao-xing, LIU Wen-hui, ZHANG Yong-chao, BAO Gen-sheng

Academy of Animal Science and Veterinary Medicine, Qinghai University;Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Xining, Qinghai Province 810016, China

Received:2022-07-16 Revised:2022-10-26 Online:2023-03-15 Published:2023-04-01

摘要/Abstract

摘要： 为探讨温度对发草（Deschampsia caespitosa）种子萌发的影响，本研究以采自青海省和四川省5个地理种群的发草种子为研究对象，研究温度对发草萌发、幼苗生长特性影响及预测发草萌发的温度阈值。结果表明：25℃是发草萌发的最适温度。四川省松潘县牟尼乡的发草种子发芽基本温度（1.84℃）明显高于其它4种发草种子萌发的基本温度（-8℃~-5℃）；其萌发最适温（23.06℃）明显低于其它4种发草种子萌发的最适温（25℃~26℃）；萌发最高温（41.1℃）显著低于其它4种发草种子萌发最高温（48℃~57℃）。同时，除四川省松潘县牟尼乡的发草种子外积温模型能准确预测供试发草种子在不同温度条件下种子萌发进程。由此可见，采集地的年均气温温度会影响种子萌发的可塑性。上述研究结果将为不同地理种群发草种质资源筛选、确定不同生境发草最佳播期及利用发草进行高寒退化草地生态修复提供理论基础。

关键词: 发草, 种子萌发, 温度, 积温模型

Abstract: In order to investigate the effects of temperature on seed germination of Deschampsia caespitosa, the mature seeds of D. caespitosa from five geographic locations in Qinghai and Sichuan province were collected and examined. It was found that the optimum temperature for germination of D. caespitosa was 25℃. The base temperature of seed germination collecting from Muni Township, Songpan County, Sichuan Province (1.84℃) was higher than the rests from others collecting sites (-8℃~-5℃);by contrast, the optimum (23.06℃) and ceiling temperature (41.1℃) of germination of the seeds collected from that location were significantly lower than those from other locations. In addition, the thermal time model established with the data of seed germination of D. caespitosa from Muni Township, Songpan County, Sichuan Province, had a good performance to predict the germination rate over time course under varied temperatures, that is the predicted data of seed germination rates of D. caespitosa was almost consistent with the observed values based on repeated probit analysis. It was concluded in the study that the habitats temperature of D. caespitosa played a fundamental role in regulating the seed germination and seedling growth. The results of this research provided a theoretical basis for the selection of the D. caespitosa germplasms for restoring the degraded wetland, and practices about the determination of sowing date in spring for the different geographic locations.

Key words: Deschampsia caespitosa, Seed germination, Temperature, Thermal time model

中图分类号:

S722.1+4

孟思宇, 李晓青, 魏小星, 刘文辉, 张永超, 鲍根生. 温度对高寒地区发草种子萌发和幼苗生长的影响[J]. 草地学报, 2023, 31(3): 760-768.

MENG Si-yu, LI Xiao-qing, WEI Xiao-xing, LIU Wen-hui, ZHANG Yong-chao, BAO Gen-sheng. Effects of Temperature on Seed Germination and Seedling Growth of Deschampsia caespitosa in Alpine Regions[J]. Acta Agrestia Sinica, 2023, 31(3): 760-768.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://manu40.magtech.com.cn/Jweb_cdxb/CN/10.11733/j.issn.1007-0435.2023.03.016

https://manu40.magtech.com.cn/Jweb_cdxb/CN/Y2023/V31/I3/760

参考文献

[1] 郎芹, 牛振国, 洪孝琪, 等. 青藏高原湿地遥感监测与变化分析[J]. 武汉大学学报:信息科学版, 2021, 46(2):230-237
[2] 赵志龙, 张镱锂, 刘林山, 等. 青藏高原湿地研究进展[J]. 地理科学进展, 2014, 33(9):1218-1230
[3] MIEHE G, SCHLEUSS P-M, SEEBER E, et al. The Kobresia pygmaea Ecosystem of the Tibetan Highlands-Origin, Functioning and Degradation of the World's Largest Pastoral Alpine Ecosystem:Kobresia Pastures of Tibet[J]. Science of The Total Environment, 2019, 648:754-771
[4] RANTALA-SYKES B, CAMPBELL D. Should I Pick That? A Scoring Tool to Prioritize and Valuate Native Wild Seed for Restoration[J]. Restoration Ecology, 2019, 27(1):9-14
[5] 贺金生, 刘志鹏, 姚拓, 等. 青藏高原退化草地恢复的制约因子及修复技术[J]. 科技导报, 2020, 38(17):66-80
[6] 中国科学院北京植物研究所. 中国高等植物图鉴[M]. 第四版. 北京:科学出版社, 1975:296, 758
[7] 顾文毅. 发草种子繁殖技术研究[J]. 青海科技, 2007(4):31-32
[8] 孙明德, 孙连生, 吕金博. 发草是高寒地区的优良牧草[J]. 青海草业, 1994(3):7-8
[9] 罗巧玉, 王彦龙, 杜雷, 等. 黄河源区发草适生地植物群落特征及其土壤因子解释[J]. 草业学报, 2021, 30(4):80-89
[10] BASKIN C C, BASKIN J M. Seeds:Ecology, Biogeography, and, Evolution of Dormancy and Germination[M]. Amsterdam:Elsevier, 1998:57-64
[11] 张睿昕, 鱼小军, 邓利强, 等. 温度对发草种子萌发和幼苗生长的影响[J]. 草原与草坪, 2010, 30(1):42-44
[12] WALCK J L, HIDAYATI S N, DIXON K W, et al. Climate Change and Plant Regeneration from Seed[J]. Global Change Biology, 2011, 17(6):2145-2161
[13] LUDEWIG K, ZELLE B, ECKSTEIN R L, et al. Differential Effects of Reduced Water Potential on the Germination of Floodplain Grassland Species Indicative of Wet and Dry Habitats[J]. Seed Science Research, 2014, 24(1):49-61
[14] ETHERINGTON J R, MOORE P D, CHAPMAN S B. Methods in Plant Ecology[M]. 2nd Edition. Oxford:Blackwell Scientific Publications, 1986:378-395
[15] 樊宝丽, 马全林, 张德奎, 等. 露蕊乌头的种子萌发及幼苗出土对不同家系和亲代处理的响应[J]. 草业科学, 2010, 27(9):97-103
[16] NYACHIRO J M, CLARKE F R, DEPAUW R M, et al. Temperature Effects on Seed Germination and Expression of Seed Dormancy in Wheat[J]. Euphytica, 2002, 126(1):123-127
[17] 徐秀丽, 齐威, 卜海燕, 等. 青藏高原高寒草甸40种一年生植物种子的萌发特性研究[J]. 草业学报, 2007, 16(3):74-80
[18] BEWLEY J D, BLACK M. Seeds:Physiology of Development and Germination[M]. 2nd Edition. New York:Plenum Press, 1994:262-264
[19] BRADFORD K J. Applications of Hydrothermal Time to Quantifying and Modeling Seed Germination and Dormancy[J]. Weed Science, 2002, 50(2):248-260
[20] 孟思宇, 李晓青, 魏小星, 等. 水分胁迫对发草种子萌发和幼苗生长的影响[J]. 草业科学, 2022, 39(08):1531-1539
[21] ELLIS R H, COVELL S, ROBERTS E H. The Influence of Temperature on Seed Germination Rate in Grain Legumes:II. Intraspecific Variation in Chickpea (Cicer arietinum L.) at Constant Temperatures[J]. Journal of Experimental Botany, 1986, 37(10):1503-1515
[22] CHENG Z, BRADFORD K J. Hydrothermal Time Analysis of Tomato Seed Germination Responses to Priming Treatments[J]. Journal of Experimental Botany, 1999, 50(330):89-99
[23] TRUDGILL D L, HONEK A, LI D, et al. Thermal Time-Concepts and Utility[J]. Annals of Applied Biology, 2005, 146(1):1-14
[24] 张海艳. 低温对鲜食玉米种子萌发及幼苗生长的影响[J]. 植物生理学报, 2013, 49(4):347-350
[25] 赵娟, 朱红彩, 卢振波. 影响种子活力的因素[J]. 种子科技, 2010, 28(10):36-37
[26] BEWLEY J D. Seed Germination and Dormancy[J]. The Plant Cell, 1997, 9(7):1055-1066
[27] 张通颖, 盛军, 王柔懿, 等. 盐碱胁迫和温度对猪毛蒿种子萌发的影响[J]. 草地学报, 2019, 27(3):581-588
[28] 倪俊霞, 李冠真, 史莹华, 等. 温度对不同秋眠型紫花苜蓿光敏色素和内源激素的影响[J]. 草地学报, 2013, 21(4):708-713
[29] 祝振昌, 张利权, 肖德荣. 上海崇明东滩互花米草种子产量及其萌发对温度的响应[J]. 生态学报, 2011, 31(6):1574-1581
[30] 宋松泉, FREDLUND K M, MLLER I M. 温度对甜菜种子萌发速率和线粒体活性的影响[J]. 中山大学学报:自然科学版, 2002, 41(1):59-61
[31] 钱春梅, 伍贤进, 陈玲, 等. 高温胁迫对番茄种子萌发的影响[J]. 种子, 2002(5):20, 89
[32] HARDEGREE S P. Predicting Germination Response to Temperature. I. Cardinal-Temperature Models and Subpopulation-Specific Regression[J]. Annals of Botany, 2006, 97(6):1115-1125
[33] HARDEGREE S P, WINSTRAL A H. Predicting Germination Response to Temperature. II. Three-Dimensional Regression, Statistical Gridding and Iterative-probit Optimization Using Measured and Interpolated-Subpopulation Data[J]. Annals of Botany, 2006, 98(2):403-410
[34] BENOWICZ A, GUY R, CARLSON M R, et al. Genetic Variation Among Paper Birch (Betula papyrifera Marsh.) Populations in Germination, Frost Hardiness, Gas Exchange and Growth[J]. Silvae Genetica, 2001, 50(1):7-12
[35] TRUDGILL D L, SQUIRE G R, THOMPSON K. A Thermal Time Basis for Comparing the Germination Requirements of Some British Herbaceous Plants[J]. New Phytologist, 2010, 145(1):107-114
[36] BAO G S, ZHANG P, WEI X X, et al. Comparison of the Effect of Temperature and Water Potential on the Seed Germination of Five Pedicularis kansuensis Populations from the Qinghai-Tibet Plateau[J]. Frontiers in Plant Science, 2022, 13:1052954
[37] HU X W, FAN Y, BASKIN C C, et al. Comparison of the Effects of Temperature and Water Potential on Seed Germination of Fabaceae Species from Desert and Subalpine Grassland[J]. American Journal of Botany, 2015, 102(5):649-660
[38] 王梅英, 刘文, 刘坤, 等. 青藏高原东缘10种禾本科植物种子萌发的基温和积温[J]. 草业科学, 2011, 28(6):983-987
[39] TRUDGILL D L. Why do Tropical Poikilothermic Organisms Tend to Have Higher Threshold Temperatures for Development than Temperate Ones?[J]. Functional Ecology, 1995, 9(1):136-137
[40] ROSS M A, HARPER J L. Occupation of Biological Space During Seedling Establishment[J]. The Journal of Ecology, 1972, 60(1):77-88
[41] 胡小文, 王娟, 王彦荣. 野豌豆属4种植物种子萌发的积温模型分析[J]. 植物生态学报, 2012, 36(8):841-848
[42] ALVARADO V, BRADFORD K J. A Hydrothermal Time Model Explains the Cardinal Temperatures for Seed Germination[J]. Plant, Cell & Environment, 2002, 25(8):1061-1069

温度对高寒地区发草种子萌发和幼苗生长的影响

Effects of Temperature on Seed Germination and Seedling Growth of Deschampsia caespitosa in Alpine Regions

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	马小兰, 周华坤, 张正芳, 李珍珍, 徐梦真, 黄奥伟, 王文颖, 殷恒霞. 外源IAA对干旱胁迫下红豆草种子萌发及幼苗生长的影响[J]. 草地学报, 2023, 31(3): 796-803.
[2]	李震, 戴玲玲, 邓海玲, 郭海滨, 强胜, 宋小玲. 碧护缓解低温对草坪草萌发及苗期胁迫的作用[J]. 草地学报, 2023, 31(3): 804-812.
[3]	郝俊峰, 闫雨婷, 王志军, 贾玉山, 袁宁, 格根图. 萃取温度对蒙早苦荬菜各部位挥发性成分的影响[J]. 草地学报, 2023, 31(2): 375-387.
[4]	李慧, 岳跃森, 滕珂, 张全刚, 滕文军, 张辉, 温海峰, 武菊英, 范希峰. 不同温度下白颖苔草(Carex rigescens)种子发芽的生理特性研究[J]. 草地学报, 2023, 31(2): 426-432.
[5]	刘淑兰, 李进, 马永慧, 巫利梅, 李莹, 朱丽春. 独脚金内酯对干旱胁迫下黑果枸杞种子萌发和幼苗生理变化的影响[J]. 草地学报, 2023, 31(1): 130-139.
[6]	吕艳敏, 花梅, 张晓明, 穆瀛通, 李晓杰, 郝宁, 奥运, 王俊杰. 贮藏年限对白三叶种子萌发、幼苗生长及生理特性的影响[J]. 草地学报, 2023, 31(1): 287-293.
[7]	田伟涛, 张耀丹, 夏江, 李超锋, 李庆伟, 徐井润, 董乙强, 吴淑娟, 袁晓波. 醉马草种子萌发对增温和降雨变化响应的研究进展[J]. 草地学报, 2022, 30(9): 2291-2297.
[8]	徐翠, 姜娜, 旷思萍, 蒋金娟, 罗富成, 祖艳群. 外源草酸对不同年限狗尾草种子萌发及生理生化的影响[J]. 草地学报, 2022, 30(9): 2381-2390.
[9]	胡国富, 李韦瑶, 肖汇川, 崔国文, 宋雪, 韦银珠, 苏滢淼, 秦立刚. ABA和GA₃对山韭种子萌发、生理特性及内源激素含量的影响[J]. 草地学报, 2022, 30(9): 2399-2406.
[10]	苏文欣, 许凌欣, 姜宛彤, 刘宇乐, 王菲, 吕亚茹, 严俊鑫. 不同外源物质对盐碱胁迫下紫苏种子萌发、幼苗生长及生理的影响[J]. 草地学报, 2022, 30(9): 2415-2422.
[11]	李王轶朴, 宋扬, 王靖. 冠层温度和降水对农牧交错带植被生产力的影响研究[J]. 草地学报, 2022, 30(6): 1319-1327.
[12]	马志强, 史毅, 种培芳. 外源茉莉酸甲酯对镉污染下草地早熟禾种子萌发及幼苗生长的影响[J]. 草地学报, 2022, 30(6): 1475-1484.
[13]	闫振, 李进, 阿丽努尔·阿卜来提, 谢姆斯耶·肖开提. 外源钙对盐胁迫下单叶蔷薇种子萌发和幼苗生长的影响[J]. 草地学报, 2022, 30(5): 1185-1193.
[14]	李颖, 鱼小军, 李珍, 魏孔涛, 童永尚. 环境胁迫下γ-氨基丁酸对植物生长调控的研究进展[J]. 草地学报, 2022, 30(4): 835-840.
[15]	肖珍珍, 隋晓青, 石国庆, 陈爱萍, 乌兰, 张博. 外源褪黑素不同浸种浓度和时长对干旱胁迫下无芒雀麦种子萌发的影响[J]. 草地学报, 2022, 30(3): 655-660.