Effects of nitrogen and phosphorus on seed germination and seedling growth of Suaeda salsa under different growth conditions of the Yellow River Estuary

Abstract

Abstract: From October to November in 2010, the effects of nitrogen and phosphorus on seed germination and seedling growth of different phenotypes of Suaeda salsa under different growth conditions of the Yellow River Estuary were studied. Seed germination rates of S. salsa in the middle (JP1) and low (JP2) tidal flats reduced with increasing salinity. Under the same conditions of salinity, the JP1 germination rate was higher than that of JP2, due to growth rhythm and tidal action. Under high salinity conditions, germination rate, root/weight and root/shoot reached the maximum at a high nitrogen concentration. Thus high concentrations of nitrogen alleviated the saline toxicity. The effect of phosphorus on S. salsa was complex. Without salinity, there was no effect of phosphorus on root/weight, root/shoot, stem/weight and leaf/weight. At a salt concentration of 300 mmol/L, a moderate level of phosphorus retarded the growth of roots and stems, but favored leaf growth, and the root/shoot reached a maximum at the highest phosphorus concentration. Under high salinity conditions, S. salsa seedling growth depended on location: for JP1, root/weight and root/shoot increased as phosphorus concentration increased, and leaf/weight decreased but for JP2, the opposite changes were observed.

CLC Number:

Q945.3

SONG Hong-li, SUN Zhi-gao, SUN Jing-kuan, MOU Xiao-jie, JIANG Huan-huan, SUN Wen-guang, SUN Wan-long. Effects of nitrogen and phosphorus on seed germination and seedling growth of Suaeda salsa under different growth conditions of the Yellow River Estuary[J]. Acta Prataculturae Sinica, 2012, 21(6): 30-41.

References

[1] Attiwill P M, Adams M A. Nutrient cycling in forests[J]. New Phytology, 1993, 124: 561-582.
[2] Theodorou M E, Plaxton W C. Metabolic adaptations of plant respiration to nutritional phosphate deprivation[J]. Plant Physiology, 1993, 101: 339-344.
[3] 牟晓杰. 黄河口滨岸潮滩湿地系统氮生物循环特征与循环模式研究[D]. 北京: 中国科学院研究生院, 2010.
[4] Song J, Fan H, Zhao Y Y, et al. Effect of salinity on germination, seedling emergence, seedling growth and ion accumulation of a euhalophyte Suaeda salsa in an intertidal zone and on saline inland[J]. Aquatic Botany, 2008, 88: 331-337.
[5] 牟晓杰, 孙志高, 王玲玲, 等. 黄河口滨岸潮滩不同生境下翅碱蓬氮的累积与分配特征[J]. 湿地科学, 2010, 8(1): 57-66.
[6] Yasin Ashraf M, Afaf R, Saleem Qureshi M, et al. Salinity induced changes in α-amylase and protease activities and associated metabolism in cotton varieties during germination and early seedling growth stages[J]. Acta Physiologiae Plantarum, 2002, 24: 37-44.
[7] 赵海泉. KNO₃、(NH₄) Mo₇O₆、NADH 预处理对花生种子活力及幼苗生长的影响[J]. 安徽农业大学学报, 1997, 24(3): 302-305.
[8] Hendricks S B, Taylorson R B. Promotion of seed germination by nitrate, nitrite, hydroxylamine, and ammonium salts[J]. Plant Physiology, 1974, 54: 304-309.
[9] Kaya C, Tuna A L, Ashraf M, et al. Improved salt tolerance of melon (Cucumis melo L.) by the addition of proline and potassium nitrate[J]. Environmental and Experimental Botany, 2007, 60: 397-403.
[10] 范志强. 氮磷营养及氮形态对水曲柳幼苗生长和生理的影响机制[D]. 哈尔滨: 东北林业大学, 2004.
[11] Song J, Xing S. Effects of salinity and nitrogen on growth, contents of pigments, and ion accumulation of a euhalophyte Suaeda salsa in an intertidal zone and on saline inland[J]. Communications in Soil Science and Plant Analysis, 2010, 41: 88-97.
[12] Bhandal I S, Malik C P. Potassium estimation, uptake, and its role in the physiology and metabolism of flowering plants[J]. International Review of Cytology, 1988, 110: 205-254.
[13] 那守海. 氮磷营养对落叶松幼苗生长的调控[D]. 哈尔滨: 东北林业大学, 2008.
[14] 温洋, 金继运. 施磷对紫花苜蓿光合特性以及生长的影响[J]. 中国土壤与肥料, 2007, (6): 34-37.
[15] 王凌晖, 施福军, 朱宏光, 等. 盐分胁迫下巨尾桉苗期生长与生理特性的变化[J]. 福建林学院学报, 2009, 29(2): 97-102.
[16] 李俊贞, 覃静, 邓力, 等. 盐分胁迫对灰木莲苗木生长及生理指标的影响[J]. 西部林业科学, 2011, 40(2): 40-43.
[17] 张建锋, 张旭东, 周金星, 等. 盐分胁迫对杨树苗期生长和土壤酶活性的影响[J]. 应用生态学报, 2005, 16(3): 426-430.
[18] 林磊, 周志春. 水分和磷素对木荷不同种源苗木生长和磷效率的影响[J]. 应用生态学报, 2009, 20(11): 2617-2623.
[19] Vender Werf A, Nagel O W. Carbon allocation to shoots and roots in relation to nitrogen supply is mediated by cytokinins and suerose[J]. Plant and Soil, 1996, 185: 21-32.
[20] Mackie Dawson L A, Millard P, Proe M F. The effect of nitrogen supply on root growth and development in Sycamore and Sitka spruce trees[J]. Forestry, 1995, 68(2): 107-114.
[21] 韦莉莉, 张小全, 侯振宏, 等. 杉木苗木光合作用及其产物分配对水分胁迫的响应[J]. 植物生态学报, 2005, 29(3): 394-402.
[22] 庄伟伟, 李进, 曹满航, 等. 盐旱交叉胁迫对银沙槐幼苗生理生化特性的影响[J]. 武汉植物学研究, 2010, 28(6): 730-736.
[23] 马红媛, 梁正伟, 王明明, 等. NaCl胁迫对四种禾本科牧草种子萌发的影响[J]. 生态学杂志, 2009, 28(7): 1229-1233.
[24] Vicente O, Boscaiub M, Narajo M A, et al. Responses to salt stress in the halophyte Plantago crassifolia (Plantaginaceae)[J]. Journal of Arid Environments, 2004, 58: 463-481.
[25] 任书杰, 张雷明, 张岁岐, 等. 氮素营养对小麦根冠协调生长的调控[J]. 西北植物学报, 2003, 23(3): 395-400.
[26] 林文, 李义珍, 郑景生, 等. 施氮量及施肥法对水稻根系形态发育和地上部生长的影响[J]. 福建稻麦科技, 1999, 17(3): 21-24.
[27] Rufty Jr T W, Israel D W, Volk R J, et al. Phosphate regulation of nitrate assimilation in soybean[J]. Joural of Experimental Botany, 1993, 44: 879-891.
[28] Freeden A L, Rao I M, Terry N. Influence of phosphorus nutrition on growth and carbon partitioning in Glycine max[J]. Plant Physiology, 1989, 89: 225-230.
[29] Marschner H. Functions of Mineral nutrition: Macronutrients, in Mineral Nutrition of Higher Plants[M]. London: Academic Press, 1995: 229-312.
[30] 刘彧, 丁同楼, 王宝山. 不同自然盐渍生境下盐地碱蓬叶片色素积累及光合特性的研究[J]. 山东师范大学学报(自然科学版), 2006, 21(2): 102-104.
[31] 阮圆, 刘彧, 王宝山. 不同自然盐渍生境下盐地碱蓬叶片色素积累及光合特性的研究[J]. 山东师范大学学报(自然科学版), 2008, 23(1): 115-117.
[32] 王琳, 岳晓翔, 王宝山. 不同生境下两种表型盐地碱蓬叶片POD比较研究[J]. 山东师范大学学报(自然科学版), 2008, 23(4): 103-105.