"කෘෂිකර්මය" හි සංශෝධන අතර වෙනස්කම්

== Crop alteration and biotechnology ==

{{main|Plant breeding}}

 

Crop alteration has been practiced by humankind for thousands of years, since the beginning of civilization. Altering crops through breeding practices changes the genetic make-up of a plant to develop crops with more beneficial characteristics for humans, for example, larger fruits or seeds, drought-tolerance, or resistance to pests. Significant advances in plant breeding ensued after the work of geneticist Gregor Mendel. His work on dominant and recessive alleles gave plant breeders a better understanding of genetics and brought great insights to the techniques utilized by plant breeders. Crop breeding includes techniques such as plant selection with desirable traits, self-pollination and cross-pollination, and molecular techniques that genetically modify the organism.<ref>[http://www.cls.casa.colostate.edu/TransgenicCrops/history.html History of Plant Breeding], Accessed on December 8, 2008</ref>