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Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. [1] It is used to improve the quality of plant products for use by humans and animals. [2] The goals of plant breeding are to produce crop varieties that boast unique and superior traits for a variety of applications.
Self-fertilization, where pollen from a plant will fertilise reproductive cells or ovules of the same plant; Cross-pollination, where pollen from one plant can only fertilize a different plant; Asexual propagation (e.g. runners from strawberry plants) where the new plant is genetically identical to its parent
Dilbagh Singh Athwal (12 October 1928 – 14 May 2017) was an Indian-American [2] geneticist, plant breeder and agriculturist, known to have conducted pioneering research in plant breeding. [3]
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The PPV&FR Act, 2001 was enacted to grant intellectual property rights to plant breeders, researchers and farmers who develop any new or extant plant varieties. The intellectual property right granted under PPV & FR Act, 2001 is a dual right – one is for the variety and the other is for the denomination assigned to it by the breeder.
In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species. As of 2015, 26 plant species have been genetically modified and approved for commercial release in at least one country. The majority of these species contain genes that make them either tolerant to herbicides or resistant to insects.
Farmers have used traditional breeding methods for millennia, wild maize (Zea mexicana) is routinely grown alongside maize to promote natural crossing and improve yields. More recently, plant breeders have utilised CWR genes to improve a wide range of crops like rice ( Oryza sativa ), tomato ( Solanum lycopersicum ) and grain legumes .
India began its own Green Revolution program of plant breeding, irrigation development, and financing of agrochemicals. [47] India soon adopted IR8 rice. [48] In 1968, Indian agronomist S.K. De Datta published his findings that IR8 rice yielded about 5 tons per hectare with no fertilizer, and almost 10 tons per hectare under optimal conditions.