Weed suppressing ability of spring wheat varieties

S. M. Rezaul Karim, . and Naylor R. E. L., . and Whytock G. P., . (1999) Weed suppressing ability of spring wheat varieties. [Proceedings Paper]

Weed suppression ability of four spring wheat varieties was studied. Varieties were grown in pure stands and in mixtures with fat hen Chenopodium album either as a single wheat plant surrounded by four fat hen plants or a single fat hen plant surrounded by four wheats. Monocultures of 4 wheat 1 weed and 4 weeds were also maintained. Competitive ability was measured by aggressivity and competition susceptibility after crop anthesis. Despite significant differences in individual plant dry weight of the wheat varieties the effect of the varieties in reducing the fat hen dry weigh the four varieties were also similar. Crop dry matter loss weakly corresponded to the weed dry matter produced in mixtures. There was no correspondence between wheat spike harvest index in pure stands and varietal competitiveness. No correlation was noted between the light interception aggressivity and weed dry matter.

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Abstract

Weed suppression ability of four spring wheat varieties was studied. Varieties were grown in pure stands and in mixtures with fat hen Chenopodium album either as a single wheat plant surrounded by four fat hen plants or a single fat hen plant surrounded by four wheats. Monocultures of 4 wheat 1 weed and 4 weeds were also maintained. Competitive ability was measured by aggressivity and competition susceptibility after crop anthesis. Despite significant differences in individual plant dry weight of the wheat varieties the effect of the varieties in reducing the fat hen dry weigh the four varieties were also similar. Crop dry matter loss weakly corresponded to the weed dry matter produced in mixtures. There was no correspondence between wheat spike harvest index in pure stands and varietal competitiveness. No correlation was noted between the light interception aggressivity and weed dry matter.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. Call number mal SB 950 I61 1999
AGROVOC Term:	Weeds
AGROVOC Term:	Spring wheat
AGROVOC Term:	Chenopodium
AGROVOC Term:	Cultivars
AGROVOC Term:	Monoculture
AGROVOC Term:	Anthesis
AGROVOC Term:	Dry matter content
AGROVOC Term:	Harvesting
AGROVOC Term:	Biomass
AGROVOC Term:	Wheats
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/12270

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