TWO-LINE HYBRID PRODUCTION SYSTEM AND THEIR APPLICATIONS IN RICE
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 61
Abstract
Rice is one of the most important world food crops, serving as the staple food for over one-third of the world’s population. Three line method or CMS system, which is possible and has been found to be most effective genetic tool for developing hybrids. Another efficient method is identification of a pollen sterility system that is dependent on temperature known as the thermo-sensitive genic male sterility called two line system. The TGMS system have three main advantages over the three line methods; no need of restorer line, no need of maintainer line and does not have any negative effect of cytoplasm. TGMS lines become sterile when the environmental temperature is higher than 25–30°C, during the panicle initiation and anthesis stages, and it convert fertile condition, when the temperature goes down below the 25–30°C. Two line method of hybrid seed production is more economic and efficient than to three line method.
Authors and Affiliations
PARDEEP KUMAR
Keywords
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