Weedy Rice
The term weedy rice generally includes all the species of genus Oryza which behave as rice and which crop in rotation with rice weeds. Weedy rice populations have been reported in many rice- growing areas in the world where the crop is directly seeded (Parker and Dean, 1976; Ferrero and Finassi, 1995). Even though weedy rice belongs to different species and subspecies, all these plants share the ability to disseminate their grains before rice harvesting. Weedy plants can also adapt to a wide range of environmental conditions. Weedy rice grains frequently have a red pigmented pericarp and it is for this reason that the term ‘red rice’ is commonly adopted in international literature to identify these wild plants. This term, however, does not seem very appropriate as red-coat grains are also present in some cultivated varieties, but also absent in various weedy forms (FAO, 1999).
In most rice areas the spread of weedy rice became significant mainly after the shift from rice transplanting to direct seeding, and has started to become very severe over the last 15 years, particularly in European countries, after the cultivation of weak, semi-dwarf indica-type rice varieties (Tarditi and Vercesi, 1993). The spread has generally been favoured by the planting of commercial rice seeds that contain grains of the weed.
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The Impacts of Saline-Water Intrusion on the Lives and Livelihoods of Gambian RiceGrowing
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Advanced Technique in Aqua and Agriculture
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Developing a Groundwater Model for the Town of Amherst, NY.
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Identity and Description of Garra mcclellandi (Jerdon, 1849) from the Type Locality, and a Neotype Designation from Cauvery River Basin, Southern India.
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Identity and Description of Garra mcclellandi (Jerdon, 1849) from the Type Locality, and a Neotype Designation from Cauvery River Basin, Southern India.
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Influence of patterned substrates on miniaturization of surface patterns in soft elastic films
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Influence of patterned substrates on miniaturization of surface patterns in soft elastic films
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Synthesis and microwave characteristic of Y and Z type hexaferrite
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Synthesis and microwave characteristic of Y and Z type hexaferrite
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Chitosan delaying human fibroblast senescence through down regulation of TGF signaling pathway
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Chitosan delaying human fibroblast senescence through down regulation of TGF signaling pathway
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