Weedy Rice

The term weedy rice generally includes all the species of genus Oryza which has characteristics of rice and has 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. 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. 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. The spread has generally been favoured by the planting of commercial rice seeds that contain grains of the weed. Only a very few journals maintain high standards in terms of the content they publish, one has to be careful while picking information as content that is not reliable and untrue can be harmful to research as well as society. Generally, journals can be rated by considering impact factor, reputation of authors, editorial board members and also in terms of the fee they charge. Top journals have a good impact factor with reliable content that can be freely accessed worldwide. Maintaining high quality information needs rigorous evaluation of research, discussions between researchers and various other scholars, academicians etc.

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Last date updated on April, 2024