A study on allelopathic activities of different organs of 23 alfalfa species

Abstract

Abstract: The allelopathic activities of different organs of 23 alfalfa species were studied using seedlings of lettuce and wheat as the receiver plants. The alfalfa plant tissue was ground to a powder and mixed with agar (PPA) in the laboratory. The growth of the two species of receiver plant seedlings were inhibited differently by different organs of the 23 alfalfa species and the inhibitory effects on radicals (or seminal roots) were higher than those on hypocotyls (or coleoptiles) at 1 g/L concentration. The susceptibility of lettuce to all alfalfa species was considerably higher than that of wheat. Of all the species, WL324, Aohan, Gannong No.1 and Gannong No.4 showed higher total activity against lettuce, while on wheat it was Gannong No.1, Gannong No.3, Gannong No.4 and Gongnong No.1. Although the inhibitions of 3 organs on the 2 species of receiver plants were clearly different, they showed a total trend of activities in the order roots>leaves>shoots.

CLC Number:

LUO Xiao-yong, SUN Juan. A study on allelopathic activities of different organs of 23 alfalfa species[J]. Acta Prataculturae Sinica, 2012, 21(2): 83-91.

References

[1] 吴开贤, 罗富成. 紫花苜蓿的生态功能及应用前景分析[J]. 草业与畜牧, 2008, (4): 23-27.
[2] 李剑峰, 师尚礼, 张淑卿. 环境酸度对紫花苜蓿早期生长和生理的影响[J]. 草业学报, 2010, 19(2): 47-54.
[3] 邹亚丽, 韩方虎, 耿丽英, 等. 温度和湿度对紫花苜蓿土壤氮矿化的影响[J]. 草业学报, 2010, 19(4): 101-107.
[4] 秦峰梅, 张红香, 武祎, 等. 盐胁迫对黄花苜蓿发芽及幼苗生长的影响[J]. 草业学报, 2010, 19(4): 71-78.
[5] 李玉占, 梁文举, 姜勇. 苜蓿化感作用研究进展[J]. 生态学杂志, 2004, 23(5): 186-191.
[6] 沈志远, 王其传. 作物连作障碍发生原因及解决办法[J]. 生物学教学, 2002, 27(3): 39.
[7] 孔垂华, 胡飞. 植物化感作用及其应用[M]. 北京: 中国农业出版社, 2001.
[8] 李志华, 沈益新. 紫花苜蓿化感作用的研究[J]. 草业科学, 2005, 22(12): 33-36.
[9] 李玉占, 侯雪坤, 刘方明, 等. 苜蓿叶水浸提液对杂草的化感效应研究[J]. 农业系统科学与综合研究, 2006, 22(2): 84-87.
[10] 卢成, 曾昭海, 王维, 等. 紫花苜蓿对九种杂草的化感作用[J]. 中国草地学报, 2006, 28(5): 42-45.
[11] 董晓宁, 高承芳, 李文杨, 等. 紫花苜蓿根系浸提液对鸭茅的化感作用研究[J]. 江西农业学报, 2009, 21(7): 78-80.
[12] 李志华, 沈益新. 不同品种紫花苜蓿冬季再生草化感作用的研究[J]. 草业学报, 2006, 15(4): 36-39.
[13] 朱晓红, 王朋, 梁文举, 等. 苜蓿化感作用的初步研究[J]. 生态学杂志, 2004, 23(3): 128-130.
[14] 袁莉, 于磊, 王许军, 等. 不同年限紫花苜蓿的浸提液对棉花的化感作用及其化感物质含量[J]. 草业科学, 2008, 25(12): 71-74.
[15] 袁莉, 鲁为华, 于磊. 紫花苜蓿生长前期各部位提取液对种子萌发的自毒作用[J]. 中国草地学报, 2007, 29(5): 111-114.
[16] 王希, 沈禹颖, 高崇岳, 等. 异龄苜蓿水浸液对其种子萌发的自毒效应[J]. 草地学报, 2008, 16(6): 609-612.
[17] Oleszek W A, Jurzyata M. The allelopathic potential of alfalfa root medicagenic acid glycosides and their fate in soil environment[J]. Plant Soil, 1987, 98: 67-80.
[18] Ries S, Wert V, Sweeley C C, et al. Triacontanol: A new naturally occurring plant growth regulator[J]. Science, 1977, 195: 1339-1341.
[19] 罗小勇, 付艳红, 周世军. 琼脂混粉法的建立及其在植物叶片化感活性测定中的应用[J]. 青岛农业大学学报, 2007, 24(4): 267-270.
[20] Miller D A. Allelopathic effects of alfalfa[J]. Journal of Chemical Ecology, 1983, 9: 1059-1072.
[21] 李美娜, 李志华. 紫花苜蓿茎叶浸提液对波斯婆婆纳化感效应的研究[J]. 中国草地学报, 2010, 32(1): 69-74.
[22] 李志华, 沈益新, 刘信宝, 等. 开花期10个苜蓿品种水浸提液中酚酸类化感物质含量研究[J]. 草地学报, 2009, 17(6): 799-802.
[23] Rice E L. Allelopathy (2nd edn)[M]. New York: Academic Press, 1984.
[24] Miersch J, Jiihlke G. Metabolism and exudation of canavanine during development of alfalfa[J]. Journal of Chemical Ecology, 1992, 18: 2117-2129.
[25] Birkett M A, Chamberlain K, Hooper A M, et al. Does allelopathy offer real promise for practical weed management and for explaining rhizosphere interactions involving higher plants[J]. Plant Soil, 2001, 232: 31-39.
[26] Wyman-Simpson C L, Waller G R, Jurysta M, et al. Biological activity and chemical isolation of root saponins of six cultivars of alfalfa (Medicago sativa L.)[J]. Plant Soil, 1991, 135: 83-94.
[27] Chon S U, Choi S K, Jung S, et al. Effects of alfalfa leaf extracts and phenolic allelochemicals on early seedling growth and root morphology of alfalfa and barnyard[J]. Crop Protection, 2002, 21: 1077-1082.
[28] Dornbos D L. Medicarpin delays alfalfa seed germination and seedling growth[J]. Crop Science, 1990, 30: 162-166.