Response of Yields and Agronomic Traits of Five Grain Millet Varieties to Planting Date

Subject Areas : Journal of Crop Ecophysiology

Mahnaz Ghafari ¹ ( Ms.c. Graduate of Department of Agronomy, Birjand Branch, Islamic Azad University, Birjand, Iran. )
Seyyed Gholamreza Moosavi ² ( Associate Prof., Department of Agronomy, Birjand Branch, Islamic Azad University, Birjand, Iran. )
Mohamad Javad Seghatoleslami ³ ( Associate Prof., Department of Agronomy, Birjand Branch, Islamic Azad University, Birjand, Iran. )
Hamed Javadi ⁴ ( Assistant Professor of Payam-e-Noor University, Iran )

Received: 2017-02-07 Accepted : 2017-11-01 Published : 2019-04-21

Keywords: Protein, temperature, Yield components, Days to physiological maturity,

Abstract :

To study the effect of planting dates on yields, yield components and protein contents of seeds of millet varieties in Birjand region, an experiment was carried out as a split-plot based on randomized complete block design with three replications at the Research Field of Islamic Azad University, Birjand Branch, Birjand, Iran, in 2013. Planting dates with three levels (May 12rd, June 2nd and June 23rd) were assigned to main plots and millet varieties with 5 levels (Bastan, Chomaki, Pishahank, White Gavars and Yellow Gavars), to sub-plot was. The results of variance analysis showed that the effect of planting date× variety interaction significantly affected tiller number per plant, seed number per panicle, number of days to physiological maturity, seed yield, biological yield, harvest index and protein yield. Means comparison of simple effects showed that the highest of panicle number per m2 (736.97) obtained at planting date of June 2nd and highest 1000-seed weight (3 g) obtained at planting date of June 23rd. Also, the highest number of panicles per m2 (742.2) belonged to White Gavars and highest 1000-seed weight (4.2 g) to related to Pishahang varieties, respectively. Means comparison of simple effect showed that the highest seed and protein yields (323.2 and 37.1 g.m2) were obtained from Chomaki variety at planting date of June 2nd respectively, but the highest biological yield (1207.2 g.m2)belonged to Yellow Gavars variety at planting date of May 12rd. As a whole, results of this research showed that planting date of Jane 2nd for Chomaki variety and planting date of June 23rd for Yellow Gavars variety were found to be proper planting dates to grow these two varieties in Birjand.

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