Abstract:
Field experiment to study the yield potential of maize hybrids under high inputs managements was conducted at Agricultural Research Farm, NWFP Agricultural University, Peshawar during Kharif 2003. The experiment was laid out in randomized complete block design with split plot arrangement having four replications. Three hybrids (Pioneer-3025, Monsanto-974 and Rathan-3304) were sown at three plant densities (60,000, 80,000 and 100,000 ha-1) and at three nitrogen levels (180, 240 and 300 kg ha-1). Hybrids responded differently to plant density and nitrogen levels except percent mortality where the difference was not significant. Monsanto-974 had maximum plant height (height (170 cm) stalk yield (8.4 t ha-1) and grain yield (4696 kg ha-`) while Rafhan-3304 had lowest grain yield and highest ear barrenness (17 %). Grain yield and stalk yield increased with increase in plant density and nitrogen level. Percent ear barrenness increased with increase in plant density but showed inverse relationship with increase in nitrogen level. Monsanto- 974 was promising hybrid in the existing condition of growth because of its high stalk and grain yield. The present study suggest that because of the variation in the growth habit even among the hybrids care must be taken in the selection of hybrids for more efficient utilization of the available resources without significant effect on environment.
Page(s):
31-34
DOI:
DOI not available
Published:
Journal: Sarhad Journal of Agriculture, Volume: 23, Issue: 1, Year: 2007