Use of shoot reduction treatments as a means of simulating hail injury to proso millet

Shanahan, John F.; Schatz, Blaine; Baltensperger, David D.; Sooby, Jane; Kachman, Stephen D.

doi:10.1080/00103620009370632

Cited by 1 publication

(3 citation statements)

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“…In the western Great Plains of the USA where proso millet is grown as a crop, it is susceptible to hail damage. Simulations have demonstrated that seed number, rather than mass, is reduced by hail (Shanahan et al 2000).…”

Section: Irelandmentioning

confidence: 99%

“…If hail destroys an emergent crop, the short growing season allows time for replanting (Shanahan et al 2000). It is also suggested as a crop to substitute for a summer fallow in the Central Great Plains of the United States if soil water is sufficient, to reduce soil degradation (Felter et al (2006).…”

Section: (B) Beneficialmentioning

confidence: 99%

“…complete its life-cycle within 60-90 days enables it to survive (or avoid) heat and drought in arid areas (Shanahan et al 2000;Zohary and Hopf 2001). According to Hanna et al (2004), P. miliaceum can grow at higher latitudes (up to 54°N) than other millets and is well adapted to plateau conditions and higher elevations (up to 1200 m in the former USSR and 3500 m in India).…”

Section: Irelandmentioning

confidence: 99%

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The Biology of Canadian Weeds: 155.Panicum miliaceumL.

Cavers

Kane

2016

Can. J. Plant Sci.

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this article has been changed to the CC BY 4.0 license. The PDF and HTML versions of the article have been modified accordingly.Abstract: Proso millet, Panicum miliaceum L. (Poaceae), has been a crop in Asia and Europe for 10 000 years and for over 300 years in Canada, where it is grown for grain, rescue crops, birdseed, forage, and recently for swath grazing. Crop-like biotypes have escaped from cultivation throughout Canada, but these infestations were generally temporary. Probably the first persistent, weedy biotype in Canada (Quebec) has large, dormant, dark red seeds. Its eradication has been attempted for many years. In the 1970s, a worse problem, a black-seeded biotype with many weedy attributes, including shattering as seeds ripen and strongly dormant seeds distasteful to many birds, spread across southern Ontario and became labelled as noxious. Concurrently, it was described as the worst weed in the US Corn Belt. In the 1980s, Canadian studies revealed infestations of other weedy biotypes, differing in seed colour and other attributes. Panicum miliaceum is an extremely variable species world-wide. Since the late 1990s, weedy proso millet has declined dramatically after the adoption of newer herbicides, particularly glyphosate. This development may lead to increases in cultivated proso millet, especially where climate change favours short-season crops grown under drier conditions. Key words: weed biology, proso millet, Panicum miliaceum L., weed/crop, intraspecific variation, global distribution and history.Résumé : On cultive le millet, Panicum miliaceum L. (poacées), depuis 10 000 ans en Asie et en Europe et depuis plus de trois siècles au Canada pour ses graines, comme provende de secours, pour nourrir les oiseaux, pour son fourrage et, plus récemment, pour la paissance en andain. Des biotypes domestiqués sont redevenus sauvages un peu partout au Canada, mais les infestations restent le plus souvent temporaires. Le premier biotype envahissant persistant du Canada a probablement été observé au Québec. Il se caractérise par de grosses semences rouges dormantes. On s'est efforcé de l'éradiquer pendant de nombreuses années. Dans les années 1970, un biotype à graines noires, possédant de nombreuses caractéristiques d'une mauvaise herbe (notamment l'égrenage prématuré quand les semences parviennent à maturité et des graines à dormance prolongée que peu d'oiseaux aiment), a soulevé un problème plus épineux en se répandant dans le sud de l'Ontario. Ce biotype a été qualifié de nuisible avant de devenir la pire adventice dans la ceinture du maïs des États-Unis. Dans les années 1980, des études canadiennes ont révélé l'existence de peuplements d'autres biotypes envahissants, aux semences de couleur différente et présentant d'autres caractères. Panicum miliaceum est une espèce extrêmement variable dans le monde. Depuis la fin des années 1990, les variétés envahissantes ont diminué de façon draconienne avec l'apparition de nouveaux herbicides, particulièrement le glyphosate. Ce développement pourrait déboucher su...

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Section: Irelandmentioning

confidence: 99%

Section: (B) Beneficialmentioning

confidence: 99%

Section: Irelandmentioning

confidence: 99%

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