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《Acta Phytophylacica Sinica》 2010-03
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Allelopathic potential of subterranean parts of Sorghum halepense(L.) Pers.

Liu Yan Huang Hongjuan Zhang Chaoxian Wei Shouhui Meng Qinghui(Institute of Plant Protection,Key Laboratory of Weed and Rodent Biology and Management,Chinese Academy of Agricultural Sciences,Beijing 100193,China)  
The allelopathic potential of Sorghum halepense(L.) Pers.was investigated by studying the effect of its subterranean parts(rhizome and fibrous root) on the germination and growth of Triticum aestivum.The subterranean parts were either extracted with water or mixed the pulverized tissues with soil.At 0.04 g/mL,water-extracts from the rhizome,fiber and the whole subterranean tissue inhibited 76.00%,96.00% and 70.00% germination of Triticum aestivum on the first day after sowing,while on the fifth day declined to 6.77%,22.03% and 10.17% respectively.The results showed that the inhibition was strengthened with the increased concentration,weakened with increased treatment time.In soil,the rhizome,fiber and the whole subterranean tissue inhibited 32.20%,42.37% and 35.59% germination on the sixth day after sowing.Each material that mixed into soil inhibited T.aestivum both shoot and root growth.In this study,the inhibition effect of fiber was greater than that of rhizome.
【Fund】: 国家“十一五”科技支撑计划(2006BAD08A09);; 中央级公益性科研院所基本科研专项资金
【CateGory Index】: S451
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