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Planting Dates and Harvesting Stages Influence on Maize Yield under Rain-Fed Conditions

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  • Dolapo Akinnuoye-Adelabu
  • Albert Modi

Abstract

Understanding the challenges associated with variation in weather conditions and stages of maturity in maize are essential for farmers to achieve continuous production under climate changes. This research evaluated the interactive effect of planting date and stages of maturity at harvest on maize yield (Zea mays L.). Field trials were conducted during the 2014/15 and 2015/16 seasons at university of KwaZulu-Natal research farm Pietermaritzburg South Africa. Planting dates comprised of early (November), mid (December) and late planting dates (January). While, harvesting occurred at milk stage, dent stage and physiological maturity. A split plotdesign with four replications was used. The main plot and sub-plot consisted of planting dates and harvesting stages respectively. Response of maize to planting dates and harvesting stages was determined by variables of plant physiological growth and yield parameters. Significant differences in growth and physiological parameters were more obvious in 2015/16 season which was a drier season than 2014/15. Early and mid-planting had positive effect on parameters measured at both seasons. However, mid planting date favoured maize growth and yield more in drier season. The interaction of planting dates and harvesting stages significantly influenced grain yield, thousand seed weight, ear length and diameter. Thousand seed weight, ear length and diameter obtained at dent stage under mid planting outperformed its counterpart from physiological maturity under which late planting. With the increase in climate variability there is high risk that maize planted lately would have lower yield irrespective of its planting dates and might not attain physiological maturity. However, maize harvested at dent stage under early and mid-planting dates gave substantially high yield.

Suggested Citation

  • Dolapo Akinnuoye-Adelabu & Albert Modi, 2017. "Planting Dates and Harvesting Stages Influence on Maize Yield under Rain-Fed Conditions," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(9), pages 1-43, August.
  • Handle: RePEc:ibn:jasjnl:v:9:y:2017:i:9:p:43
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    References listed on IDEAS

    as
    1. S.A. Anjum & M. Farooq & L.C. Wang & L.L. Xue & S.G. Wang & L. Wang & S. Zhang & M. Chen, 2011. "Gas exchange and chlorophyll synthesis of maize cultivars are enhanced by exogenously-applied glycinebetaine under drought conditions," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(7), pages 326-331.
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    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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