GENOTYPE X ENVIRONMENT INTERACTION STUDIES IN PROMISING EARLY GENOTYPES OF RICE (Oryza sativa L.)
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Date
2014
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Publisher
AAU, Anand
Abstract
Rice (Oryza sativa L.) is considered as one of the most
important crop plants from Poaceae. Today, rice has special position as a
source of providing over 75% of Asian population and more than three
billion of world populations meal, which represents 50 to 80% of their daily
calorie intake. The world population will increase to over 4.6 billion by
2050, which demands more than 50% of rice needs to be produced what is
produced at present to cope with the growing population (Sreedhar et al
2011). Therefore, efforts to enhance rice productivity coupled with stability
of performance under varying environments must receive top priority.
The present investigation was therefore undertaken with a view to
elicit information on stability parameters for agromorphological traits,
grain and straw yield, yield attributing traits, grain dimentions parameters
and quality parameters. The present investigation was carried out to elicit
information on stability performance of rice genotypes in the Gujarat state
along with local check varieties (cultivars) for eighteen quantitative and
qualitative traits in 3 environments. The experiment was conducted under
Middle Gujarat Agro-climatic situation (Middle Gujarat agro-climatic Zone-
III) at three locations i.e. Main Rice Research Station, A.A.U., Nawagam,
Paddy Research station, Model Farm, A.A.U., Dabhoi and Agricultural
Research Station(Muvaliya Farm), A.A.U., Dahod. during kharif season of
2012. The data generated were analysed using methodology suggested by
Eberhart and Russell (1966).
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Keywords
Agriculture, plant breeding & genetics, study