Investigation of castor bean (Ricinus communis L.) Allelopathic potential on three weed

Esmaeili, H. (2010) Investigation of castor bean (Ricinus communis L.) Allelopathic potential on three weed. Masters thesis, University of Zabol.

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Filed observations suggested that castor bean (Ricinus communis) probably exerts some allelopathic effects. The main objective of this study was to determine whether R. communis effects on the germination and growth of some weeds by allelopathic material. To explore Allelopathic responses of R.communis upon germination and growth stages of pigweed (Amaranthus retroflexus), wild barley (Hordeum leporinum), noogroora burr (Xanthium strumariumL). On laboratory bioassay and two greenhouse experiments- including, herb residue of R. communis effects and simultaneous growth of R. communis with weeds on target plants were conducted. The result showed that herb exerts of castor bean had significantly effect on percentage of grmination ، stemlet and rootlet length ، and late of germination. Percentage grmination decreased 70 percentage، but it had no effect on dry weight of rootlet and shootlet\rootlet .Shoot residue and simultaneous growth significantly decreased height and dry matter of all target species except in noogroora. In this study were showed negative and positive effects of allelophaty Results showed that R.communis can decrease the ability of weeds to germinate and grow.

Item Type: Thesis (Masters)
Uncontrolled Keywords: allelopathy, germination and growth stages, weeds, R.communis, drought stress
Subjects: Q Science > QK Botany
Depositing User: admin admin1 admin2
Date Deposited: 21 Jun 2016 08:09
Last Modified: 21 Jun 2016 08:09

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