菊花桃不同器官除草活性的研究

明确菊花桃不同器官对生菜、黄瓜、反枝苋、苘麻、小麦和稗6种受体植物的除草活性,为进一步开展活性化合物的研究提供依据;在10g/L的添加浓度下,菊花桃的不同器官粉末对各受体植物幼苗的生长均具有不同程度的抑制作用,且普遍对胚根(或种子根)生长的抑制效果高于对胚轴(或胚芽鞘)生长的抑制。其中,以根、茎和花器官的总体抑制活性最强,而叶器官的效果则相对较低,6种受体植物中以反枝苋的敏感性最高,而稗的敏感性相对较低。说明菊花桃的根、茎和花等器官中均含有高除草活性物质,且对受体植物具有一定的选择性。

Study on Herbicidal Activities of Different Organs of Pruns persics cv001.'Ju Hua'

In order to understand the herbicidal activities of different organs of Pruns persica cv001.‘ Ju Hua ’ on seedlings of Lactuca sativa L.,Cucumis sativus L.,Amaranthus retroflexus L.,Abutilon theophrasti,Triticum aestivum L.and Echinochloa crusgalli （L.） Beauv.as the receiver plants and provide the evidence for further study of active compounds.Method of grinded plant tissue powder mixed with agar （PPA） was employed.The growths of different receiver plants seedlings were inhibited by different organs of P.persica cv001.‘ Ju Hua ’ on different degree and the inhibitory effects on radicals （or seminal roots） were higher than that on hypocotyls （or coleoptiles） at 10 g/L concentration.Among all the organs of P.persica cv001.‘ Ju Hua ’ ,the roots,shoots and flowers showed the very high herbicidal activities,but the activities of the leaves were relatively lower.The seedlings of A.retroflexus L.and E.crusgalli （L.） Beauv.Showed the highest and lowest sensibilities to all active organs among 6 receiver plants,respectively.The results suggested that the roots,shoots and flowers of P.persica cv001.‘ Ju Hua ’ may contain the high active herbicidal compounds and have certain selectivity to receiver plants.