STUDIES ON GENETIC VARIABILITY IN FORAGE MAIZE (ZEA MAYS L.)
M. CHAKROVORTY AND S. BORA NEOG
Department of Plant Breeding & Genetics
Assam Agricultural University
Jorhat-785 013 (Assam), India
*(e-mail : manoshiaub@gmail.com)
(Received : 20 June 2015; Accepted : 26 September 2015)
SUMMARY
The present study revealed significant variation for all the traits except leaf area ratio and leaf : stem ratio. A higher estimate of phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was obtained for per day productivity of dry matter yield. High heritability coupled with high genetic advance was exhibited by per day productivity of green forage yield and per day productivity of dry matter yield. This indicated that these characters were under the control of additive gene action. The mean performance of all the genotypes revealed that JCM-09-1 produced the highest green forage yield along with the highest per day productivity of green forage yield.
Key words:Genetic variability, per day productivity, green forage yield, forage maize