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Titolo:
Production of herbicide-resistant jointed goatgrass (Aegilops cylindrica) x wheat (Triticum aestivum) hybrids in the field by natural hybridization
Autore:
Seefeldt, SS; Zemetra, R; Young, FL; Jones, SS;
Indirizzi:
Washington State Univ, USDA ARS, Pullman, WA 99164 USA Washington State Univ Pullman WA USA 99164 SDA ARS, Pullman, WA 99164 USA Univ Idaho, Dept Plant Soil & Entomol Sci, Moscow, ID 83843 USA Univ Idaho Moscow ID USA 83843 t Soil & Entomol Sci, Moscow, ID 83843 USA Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA Washington State Univ Pullman WA USA 99164 oil Sci, Pullman, WA 99164 USA
Titolo Testata:
WEED SCIENCE
fascicolo: 6, volume: 46, anno: 1998,
pagine: 632 - 634
SICI:
0043-1745(199811/12)46:6<632:POHJG(>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Keywords:
imazamox; birdsrape mustard, Brassica campestris L. BRSRA; jointed goatgrass, Aegilops cylindrica Host AEGCY; canola, Brassica napus L; winter wheat, Triticum aestivum L; herbicide-resistant crops; gene flow BRSRA; AEGCY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Seefeldt, SS Ruakura Agr Res Ctr, AgRes, Hamilton, New Zealand Ruakura AgrRes Ctr Hamilton New Zealand lton, New Zealand
Citazione:
S.S. Seefeldt et al., "Production of herbicide-resistant jointed goatgrass (Aegilops cylindrica) x wheat (Triticum aestivum) hybrids in the field by natural hybridization", WEED SCI, 46(6), 1998, pp. 632-634

Abstract

Imazamox-resistant hybrids resulted from a cross between jointed goatgrassand an imazamox-resistant wheat (cv. FS-4 IR wheat). Two imazamox-resistant hybrids were discovered in a research plot where FS-4 IR wheat seed had been replanted from the harvest of an imazamox efficacy study conducted the year before at a different location. These hybrid plants survived imazamox applied at 0.053 and 0.063 kg ai ha(-1) in the field and produced seven viable seeds (BC1). This seed germinated, and chromosomes were counted from the roots (2N number ranged from 39 to 54). In the greenhouse, six of the seven plants survived an application of 0.072 kg ai ha(-1) imazamox, which confirmed that the resistance trait had been passed to these progeny. A large amount of phenotypic variation was observed in the mature BC1 plants. a genetic description of the movement of the resistant gene is proposed based onthe case of the gene being located on the D and the A or B genomes. Management strategies to reduce the occurrence of herbicide-resistant hybrids arepresented.

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Documento generato il 19/09/20 alle ore 09:03:32