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COMPONENTS OF VARIANCE AND STABILITY PARAMETERS -- THEIR INTERPRETATION WITH RESPECT TO GENOTYPE X ENVIRONMENT INTERACTIONS AND THEIR USE IN A REGIONAL MAIZE TESTING PROGRAM.
Abstract
Corn (Zea mays L.) is the world's third most important crop after wheat and rice. More than 200,000,000 tons of corn grain have been produced each year since 1959. per year since 1970. Production has exceeded 300,000,000 tons This is due to the outstanding hybrids available and the management practices used, which have played important roles all over the world in production of profitable yields over several decades. Corn yields in the United States over the last thirty years, 1944 - 1973, have increased dramatically. The average yield for the first five years of this period, 1944 - 1948, was 2,173 kg/ha, while that for the last five years of the period, 1969 kg/ha, an increase of 151 percent.
Subject Area
Agronomy
Recommended Citation
CHUTKAEW, CHAMNAN, "COMPONENTS OF VARIANCE AND STABILITY PARAMETERS -- THEIR INTERPRETATION WITH RESPECT TO GENOTYPE X ENVIRONMENT INTERACTIONS AND THEIR USE IN A REGIONAL MAIZE TESTING PROGRAM." (1975). ETD collection for University of Nebraska-Lincoln. AAI7613324.
https://digitalcommons.unl.edu/dissertations/AAI7613324