Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

GROWTH, DEVELOPMENT AND YIELD OF MAIZE AS AFFECTED BY DIFFERENT IRRIGATION LEVEL (Pages : 13 - 21)

The study was conducted in Crop Physiology and Ecology Research Field and Laboratory, Hajee Mohammad Danesh Science and Technology University during the period of November 2014 to July 2015 to investigate the growth, development and yield of maize as affected by different irrigation levels. Three maize varieties (V1=NK 40, V2=Hybrid 981 and V3=BHM 11) and three levels of irrigation (I0= no irrigation, I1= 300 mm irrigation in total life span and I2= 450 mm irrigation in total life span at different days after sowing) were included as experimental treatments which were evaluated in randomized complete block design with three replications. Maize variety NK 40 required the highest duration to attain teaseling, cob initiation, silking, pollen shading and maturity. LAI, LAD, CGR, RGR and NAR were significantly influenced by the maize varieties and irrigation levels. The variety NK 40 with the irrigation treatment (450 mm) gave the highest values of all the growth parameters. The highest yield (5.84 t ha-1) was found in NK 40 and the lowest yield (5.24 t ha-1) was obtained from Hybrid 981. Irrigation levels also significantly influenced yield of maize. The highest grain yield (5.95 t ha-1) was obtained from the plant growing with the irrigation treatment (450 mm) while the lowest yield (4.20 t ha-1) was found from the control plant (no irrigation). The interaction between the maize variety and irrigation levels was significant on the growth and yield. It is indicated that NK 40 with 450 mm irrigation showed the best performance in respect of growth, development and yield of maize.Download