不同种子处理方法对柳枝稷萌发成苗需水阈值的影响

doi:10.11733/j.issn.1007-0435.2014.03.027

草地学报 ›› 2014, Vol. 22 ›› Issue (3): 617-622.DOI: 10.11733/j.issn.1007-0435.2014.03.027

不同种子处理方法对柳枝稷萌发成苗需水阈值的影响

严风¹, 张岁岐^1,2, 王楠^1,2

1. 西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨陵 712100;
2. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨陵 712100

收稿日期:2013-09-02 修回日期:2013-10-23 出版日期:2014-06-15 发布日期:2014-06-04
通讯作者: 张岁岐
作者简介:严风（1988- ），女，内蒙古丰镇人，硕士，主要从事生理生态学研究，E-mail：1160872261@qq.com
基金资助:
国家高新技术研究发展计划项目（863计划）（2011AA100504）资助

Effects of Different Seed Treatments on the Threshold of Water Potential during the Seed Germination of Switchgrass

YAN Feng¹, ZHANG Sui-qi^1,2, WANG Nan^1,2

1. State Key Lab. of Soil Erosion and Dryland Farming of the Loess Plateau, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. State Key Lab. of Soil Erosion and Dryland Farming of the Loess Plateau, Institute of Soil and Water Conservation, Yangling, Shaanxi Province 712100, China

Received:2013-09-02 Revised:2013-10-23 Online:2014-06-15 Published:2014-06-04

摘要/Abstract

摘要：

研究柳枝稷（Panicum virgatum）成苗期间的抗旱性及需水特性，可为其在干旱条件下播种保苗提供依据。采用不同浓度的聚乙二醇（-0.1~-0.5 MPa）模拟外界环境水分条件，用4℃低温冷冻化和8 M硫酸处理3个柳枝稷品种（Pathfinder，Traiblazer和Alamo）的种子，研究其成苗过程中种子萌动、萌发和出苗3个阶段的需水阈值。结果表明：随着环境水势的降低，种子群体萌动、萌发和出苗达50%概率的时间逐渐延迟；且各阶段的需水阈值不同，出苗阶段的最低。4℃低温冷冻化处理和8 M硫酸处理均使种子群体萌动、萌发和出苗达50%的时间缩短，各阶段需水阈值增大。在相同处理下，Pathfinder品种各阶段对环境水势的需求较Trailblazer和Alamo宽松。可见，柳枝稷种子出苗阶段对环境水分胁迫最为敏感，忍受胁迫能力最弱，抗旱性最弱；其中Pathfinder品种忍受胁迫能力最强，抗旱性最强。

关键词: 柳枝稷, 种子处理, 水分胁迫, 耐旱性, 需水阈值

Abstract:

In order to provide theoretical basis for sowing and seedling establishment under drought condition, the drought resistance and water requirement of switchgrass were investigated at germination and seedling establishment stages. The seeds of different switchgrass species (Pathfinder, Traiblazer and Alamo) were treated with low temperature (4℃) and 8 M sulfuric acid under different PEG concentrations (-0.1~-0.5 MPa). The water requirement thresholds of switchgrass seeds were evaluated at radicle emergence, plumule emergence and seedling establishment stages. Results showed that the times required for achieving the 50% radicle emergence, plumule emergence and seedling establishment of all seeds increased with environmental water potential decreasing. Water requirement threshold at seedling establishment stage was higher than that at radicle emergence and plumule emergence stages. Both low temperature treatment (4℃) and 8 M sulfuric acid treatment shorten the times required for achieving the 50% radicle emergence, plumule emergence and seedling establishment of all tested seeds, and enhanced the water requirement threshold in each stage. Pathfinder variety had lower requirement for environmental water potential than Trailblazer and Alamo varieties under the same treatment. Therefore, seedling establishment stage was the most sensitive to ambient water stress. Pathfinder variety showed the highest stress tolerance and drought resistance among three varieties.

Key words: Switchgrass, Seed treatment, Water stress, Drought tolerance, Critical water potential

中图分类号:

S330.3

严风, 张岁岐, 王楠. 不同种子处理方法对柳枝稷萌发成苗需水阈值的影响[J]. 草地学报, 2014, 22(3): 617-622.

YAN Feng, ZHANG Sui-qi, WANG Nan. Effects of Different Seed Treatments on the Threshold of Water Potential during the Seed Germination of Switchgrass[J]. Acta Agrestia Sinica, 2014, 22(3): 617-622.

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参考文献

[1] Sanderson M A, Read J C. Harvest management of switchgrass or biomass feedback and forage productions [J]. Agronomy Journal,1999,91(1):5-10
[2] Shen Z X, Parrish D J, Wolf D D, et al. Stratification in switchgrass seeds is reversed and hastened by drying [J]. Crop Science,2001,41(5):1546-1551
[3] Sladden S E, Bransby D I, Aiken G E. Biomass yield, composition and production costs for eight switchgrass varieties in Alabama [J]. Biomass and Bioenergy,1991,1(2):119-122
[4] Lewandowski I, Scurlock J M O, Lindvall E, et al. The development and current status of perennial rhizomatous grasses as energy crops in the US and Europe [J]. Biomass and Bioenergy,2003,25(4):335-361
[5] McLaughlin S B, Kszos L A. Development of switchgrass (Panicum virgatum) as a bioenergy feedstock in the United States [J]. Biomass and Bioenergy,2005,28(6):515-535
[6] 林长松,程序,杨新国.半干旱黄土丘陵沟壑区引种能源植物柳枝稷生态适宜性分析[J].西南大学学报,2008,30(7):125-132
[7] 于晓丹,杜菲,张蕴薇. 盐胁迫对柳枝稷种子萌发和幼苗生长的影响[J].草地学报,2010,18(6):10-06
[8] 山仑,郭礼坤.逆境成苗生态生理研究:I 春播谷类作物成苗期间的抗旱性及需水条件[J].作物学报,1984,4(10):257-263
[9] Owen P C. The relation of germination of wheat to water potential [J]. Journal of Experimental Botany,1952,3(2):188-203
[10] Hadas A. Water uptake and germination of Leguniinous seeds under changing external water potential in osmotic solutions [J]. Journal of Experimental Botany,1976,27(3):480-489
[11] 苏佩,山仑.玉米种子萌发成苗不同阶段需水阈值的研究[J].西北植物学报,1996,16(1):34-37
[12] 苏佩,山仑.高粱种子萌发成苗过程中水分需求的量化研究[J].应用与环境生物学报,1996,2(2):119-122
[13] 李文娆,张岁岐,山仑.水分胁迫下紫花苜蓿和高粱种子萌发特性及幼苗耐旱性[J].生态学报,2009,29(6):3066-3074
[14] Loch D S, Adkins S W, Heslehurst M R, et al. Warm-season (C₄) Grasses: Seed formation, development, and germination [M]. Agronomy Society of America,2004:95-143
[15] Haynes J G, Pill W G, Evans T A. Seed treatments improve the germination and seedling emergence of switchgrass[J]. HortScience,1997,32(7):1222-1226
[16] 谢正苗.牧草柳枝稷种子破休眠技术的研究[J].种子,1996,15(3):31-33
[17] 刘吉利,朱万斌,谢光辉,等.能源作物柳枝稷研究进展[J].草业学报,2009,18(3):232-240
[18] 毛静,李绍才,孙海龙,等.生态护坡植物种子萌发需水阈值构建与抗旱性研究[J].北方园艺,2010(5):83-86
[19] 莫惠栋.农业试验统计[M].上海:科学技术出版社,1984:442-446
[20] Scott S J, Jones R A, Williams W A. Review of data analysis methods for seed germination [J]. Crop Science,1984,24(6):1192-1199
[21] Kramer P J. Water relations of plants [M]. New York: Academic Press,1983:489
[22] 杨文秀,杨忠仁,李红艳,等.促进植物种子萌发及减除休眠方法的研究[J].内蒙古农业大学学报:自然科学版,2008,29(2):221-224
[23] 王娟,师尚.陇东野生紫花苜蓿硬实种子处理方法研究[J].草原与草坪,2011,31(2):41-43
[24] Sander M A, Reed R L, McLughlin S B, et al. Switchgrass as a sustainable bioenergy [J]. Bioresource Technology,1996,56(1):83-93

不同种子处理方法对柳枝稷萌发成苗需水阈值的影响

Effects of Different Seed Treatments on the Threshold of Water Potential during the Seed Germination of Switchgrass

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