Responses of Grain Maize to Plant Density at Different Irrigation Regimes

  • Sara SAMADVAND Uromia University, Department of Agronomy and Plant Breeding, Uromia, Iran;
  • Mohammad MAJIDI Shiraz University, Department of Agronomy and Plant Breeding, Shiraz, Iran;
  • Gholamreza HEIDARI University of Kurdistan, Department of Agronomy and Plant Breeding, Sanandaj, Iran;
  • Yahya EMAM Shiraz University, Department of Agronomy and Plant Breeding, Shiraz, Iran;
Keywords: density; harvest index; tape drip irrigation; yield

Abstract

In order to examine the effects of different plant densities, plant patterns and irrigation regimes on yield, yield components and harvest index of grain maize, a field experiment was conducted at Miyandoab Agricultural Research Station, Iran. A strip split plot experiment was conducted based on randomized complete block design with three replications. The results showed that the effect of plant density was significant on kernel yield, harvest index, 1,000 kernel weight. The highest kernel yield was obtained from 90,000 plants ha-1 density. Maximum grain yield (18.530 t ha-1) was obtained from furrow irrigation. However, there was no significant difference between moisture levels of 100% and 120% of field capacity. The lowest kernel yield was obtained at 80% field capacity. This study also showed that mean kernel weight and the number of kernels per row were the most determinant factors in grain yield formation. The highest and the lowest harvest indices were obtained at 120% and 80% treatments of field capacity treatment, respectively. 

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Published
2017-12-20
How to Cite
SAMADVAND, S., MAJIDI, M., HEIDARI, G., & EMAM, Y. (2017). Responses of Grain Maize to Plant Density at Different Irrigation Regimes. Notulae Scientia Biologicae, 9(4), 544-548. https://doi.org/10.15835/nsb949927
Section
Research articles