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| Effect of Sand Burial on Seed Germination and Seedling Growth of Four Xeromorphic Species in the Hexi Corridor |
| Chen Wen1, Wang Juhong2, Zhu Hui2, Qi Wei3 |
1. College of Geography and Tourism Management, Hanshan Normal University, Chaozhou 521041, Guangdong, China;
2. College of Life Science and Food Technology, Hanshan Normal University, Chaozhou 521041, Guangdong, China;
3. College of Life Science, Lanzhou University, Lanzhou 730000, China |
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Abstract Seed traits including germination, seed vigor, seed mass and shape of 4 xeromorphic species(Zygophyllum fabago, Peganum nigellastrum, Nitraria tangutorum and Lycium ruthenicum) were detected, and then seedling emergence and growth incubated at room temperature(20℃) following sand burial 0, 1, 2, 3, 4 and 5 cm was studied. The results showed that matured seeds of four species have medium dormancy, and there were significantly negative correlation between seed vigor and seed mass, and shape(p<0.05), an insignificantly negative correlation between germination and seed mass, exhibiting the large and irregular seeds had lower vigor, and that small seed had high probability of vigor and germination. With increasing of burial depth, the probability of seedlings emergence decreased, days to first emergence delayed, and the height of stem, absolutely height of plant and root length increased firstly, then decreased; the crown-root ratio increased with increasing of sand burial depth. It indicates that the optimum depths of sand burial for seedling emergence and growth for Z. fabago is 1-3 cm, P. nigellastrum 0-1 cm, N. tangutorum 0-2 cm and L. ruthenicum 1-2 cm. The method of breaking seed dormancy and the depth of sand burial should be considered during vegetation recovery to improve emergence and growth of seedling, further benefit to establishment of species.
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Received: 16 September 2014
Published: 20 November 2015
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[1] Brown J F.Effects of experimental burial on survival,growth,and resource allocation of three species of dune plants[J].Journal of Ecology,1997,85(2):151-158.
[2] Zhang J H,Maun M A.Effects of sand burial on seed germination,seedling emergence,survival,and growth of Agropyron psammophilum[J].Canadian Journal of Botany,1990,68(2):304-310.
[3] Gutterman Y.Seed Germination in Desert Plants(Adaptations of Desert Organisms)[M].Berlin,Germany:Springer-Verlag,1993.
[4] Baskin C C,Baskin J M.Seeds:Ecology,Biogeography,and Evolution of Dormancy and Germination[M].San Diego,USA:Academic Press,1998.
[5] Miller T.Effects of emergence time on survival and growth in an early old-field plant community[J].Oecologia,1987,72:272-278.
[6] Omami E N,Haigh A M,Medd R W,et al.Changes in germinability,dormancy and viability of Amaranthus retroflexus as affected by depth and duration of burial[J].Weed Research,1999,39:345-354.
[7] 张勇,薛林贵,高天鹏,等.荒漠植物种子萌发研究进展[J].中国沙漠,2005,25(1):106-113.
[8] 黄振英,Gutterman Y,胡正海,等.白沙蒿种子萌发特性的研究Ⅱ.环境因素的影响[J].植物生态学报,2001,25(2):240-246.
[9] 杨慧玲,梁振雷,朱选伟,等.沙埋和种子大小对柠条锦鸡儿种子萌发、出苗和幼苗生长的影响[J].生态学报,2012,32(24):7757-7763.
[10] 杨慧玲,曹志平,董鸣,等.沙埋对无芒雀麦种子萌发和幼苗生长的影响[J].应用生态学报,2007,18(11):2438-2443。
[11] 郑明清,郑元润,姜联合.毛乌素沙地4种沙生植物种子萌发及出苗对沙埋及单次供水的响应[J].生态学报,2006,26(8):2474-2483.
[12] 刘海江,郭柯.沙埋对中间锦鸡儿幼苗生长发育的影响[J].生态学报,2005,25(10):2550-2555.
[13] 王文娟,贺达汉,唐小琴,等.不同温度和沙埋深度对砂生槐种子萌发及幼苗生长的影响[J].中国沙漠,2011,31(6):1437-1442.
[14] 马红媛,梁正伟,闫超,等.四种沙埋深度对羊草种子出苗和幼苗生长的影响[J].生态学杂志,2007,26(12):2003-2007.
[15] 朱雅娟,董鸣,黄振英.沙埋和种子大小对固沙禾草沙鞭的种子萌发与幼苗出土的影响[J].植物生态学报,2005,29(5):730-739.
[16] 李秋艳,方海燕.沙埋对红砂幼苗出土和生长的影响[J].水土保持通报,2008,8(1):30-33.
[17] 贺宇,丁国栋,汪晓峰,等.水分和沙埋对4种沙生植物种子萌发和出苗的影响[J].中国沙漠,2013,33(6):1711-1716.
[18] 李秋艳,赵文智.五种荒漠植物幼苗出土及生长对沙埋深度的响应[J].生态学报,2006,26(6):1802-1808.
[19] 李荣平,蒋德明,刘志民,等.沙埋对六种沙生植物种子萌发和幼苗出土的影响[J].应用生态学报,2004,15(10):30-33.
[20] 朱雅娟,董鸣,黄振英.沙埋和种子大小对固沙禾草沙鞭的种子萌发与幼苗出土的影响[J].植物生态学报,2005,29(5):730-739.
[21] 何玉惠,赵哈林,赵学勇.沙埋对小叶锦鸡儿幼苗生长和生物量分配的影响[J].干旱区地理,2008,32(5):701-706.
[22] 苏延贵,李新荣,贾荣亮,等.沙埋对六种沙生植物种子萌发和幼苗生长的影响[J].中国沙漠,2007,27(6):968-971.
[23] 王桔红,崔现亮,陈学林,等.中、旱生植物萌发特性及其与种子大小关系的比较[J].植物生态学报,2007,31(6):1037-1045.
[24] 王桔红,陈文,马瑞君.不同盐胁迫对唐古特白刺种子萌发和幼苗生长的影响[J].西北师范大学学报(自然科学版),2014,50(1):92-97
[25] 路宁娜,崔现亮,王桔红,等.不同贮藏条件和光照对5种蒺藜科植物种子萌发的影响[J].中国沙漠,2008,28(6)1130-1136.
[26] 韩永伟,拓学森,高馨婷,等.阿拉善荒漠草原梭梭与白刺光合特征比较研究[J].草地学报,2010,18(3):314-319.
[27] 张远东,潘晓玲,顾峰雪,等.阜康荒漠植被灌木与半灌木种群生态位的研究[J].植物生态学报,2001,25(6):741-745.
[28] Hammond D S,Brown V K.Seed mass of woody plants in relation to disturbance,dispersal,soil type in wet neotropical forests[J].Ecology,1995,76:2544-2561.
[29] 赵丽娅,赵锦慧,李锋瑞.沙埋对几种沙生植物种子萌发和幼苗的影响[J].湖北大学学报,2006,28(2):192-194.
[30] 陈文,王桔红,张勇,等.沙埋对花棒种子萌发和幼苗生长的影响[J].生态科学,2011,30(1):26-31.
[31] 刘艳丽,高润宏,杨永华,等.梭梭和驼绒藜种子萌发及出苗对沙埋的响应[J].内蒙古农业大学学报,2009,30(2):260-265. |
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2015, Vol. 35 
