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Evolution and mechanism of rice weeds resistance to herbicides [electronic resource]: 1- resistance of Echinochloa colonum to bispyribac-sodium herbicide with respect to its effect on ChlorophyII content.

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Zein, A. A

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Language: English Summary language: Arabic Description: p.480-495Other title:

تطور وميكانيكية المقاومه لحشائش الارز ضد مبيدات الحشائش [Added title page title]

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Journal of agricultural research Kafrelsheikh Univeristy, 2010 v. 36 (4) [electronic resource].

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In: Journal of Agricultural Research Kafrelsheikh Univeristy 2010.v.36(4)Summary: The resistance evolution of Echinochloa co/anum to bispyribacsoduim was monitored during 2005, 2006 and 2007 seasons under greenhouse conditions. Moreover, the resistance mechanism of this weed to bispyribac-soduim was investigated by determining the activity of ALSase and the determination of seeds and leaves protein in both susceptible and resistant biotypes of E.colonum. The results revealed that the E colonum exhibit resistance to bispyribac-soduim after three seasons of selection pressure.

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The resistance evolution of Echinochloa co/anum to bispyribacsoduim was monitored during 2005, 2006 and 2007 seasons under greenhouse conditions. Moreover, the resistance mechanism of this weed to bispyribac-soduim was investigated by determining the activity of ALSase and the determination of seeds and leaves protein in both susceptible and resistant biotypes of E.colonum. The results revealed that the E colonum exhibit resistance to bispyribac-soduim after three seasons of selection pressure.

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