[DOWNLOAD] "Gamma Radiosensitivity Study on Long Bean (Vigna Sesquipedalis) (Report)" by American Journal of Applied Sciences # eBook PDF Kindle ePub Free
eBook details
- Title: Gamma Radiosensitivity Study on Long Bean (Vigna Sesquipedalis) (Report)
- Author : American Journal of Applied Sciences
- Release Date : January 01, 2007
- Genre: Engineering,Books,Professional & Technical,
- Pages : * pages
- Size : 167 KB
Description
INTRODUCTION Mutation means a sudden heritable change in the genetic material at the gene or chromosome level(1). They may be caused by error during cell division or by exposure to the DNA-damaging agents or mutagens in the environment. A wide range of characters which have been improved through induced mutation breeding include plant architecture, yield, flowering and maturity duration, quality and tolerance to biotic and abiotic stresses. About 89 % of mutant varieties have been developed using physical mutagens such as X-rays, gamma rays, thermal and fast neutrons where as with gamma rays alone accounting for the development of 60 % of the mutant varieties(2).
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