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Genetic Diversity for Competitive and Reproductive Ability in Wild Oats (Avena fatua)

Published online by Cambridge University Press:  12 June 2017

Henri Darmency  and
Catherine Aujas
Henri Darmency
Affiliation:
Inst. Nat. Res. Agron., Lab. Malherbologie, BV 1540, 21034 Dijon, France
Catherine Aujas
Affiliation:
Inst. Nat. Res. Agron., Lab. Malherbologie, BV 1540, 21034 Dijon, France
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Abstract

Three wild oats phenotypes were grown in wheat stands sown at different dates in greenhouse and field trials. Wild oats growth and seed output, and their effects on wheat biomass were not different among phenotypes when wild oats emerged 2 wk after the wheat. In experiments in which wild oats were planted in germinated wheat, one phenotype was shorter, weighed less, and produced fewer seed than the other phenotypes. Another phenotype reduced wheat biomass more than the other phenotypes. Vernalization increased vegetative growth and reduced spikelet production of one phenotype, but had no effect on its competitiveness with wheat.

Keywords

Wild oat, Avena fatua L. #3 AVEFAwheat, Triticum aestivum L.‘Bastion′Growthcrop interferencepolymorphismAVEFA
Type
Weed Biology and Ecology
Information
Weed Science , Volume 40 , Issue 2 , June 1992 , pp. 215 - 219
Copyright
Copyright © 1992 by the Weed Science Society of America 

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