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Influence of Sowing Dates on the Phenological Development, Growth and Yield of White Maize Genotypes

S. Akhtar
Krishi Gobeshona Foundation, Sher-e-Bangla Agricultural University, Dhaka-1207.

M.J. Ullah
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207.

A. Hamid
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University

M.S. Islam
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207.

M.K.U. Ahamed
Department of Botany, Sher-e-Bangla Agricultural University, Dhaka-1207.

S.M. Masum
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207.

Abstract/ Executive Summary:

The experiment was conducted at the Sher-e-Bangla Agricultural University (90^o22 E, 23^o 41 N), Dhaka, Bangladesh in Rabi (winter) season of 2017-2018 to study the effects of sowing date on growth and yield of four white maize genotypes, viz. PSC-121, Yangnuo-7, Yungnuo-30 and Changnuo-6. Sowing dates were November 26, December 11, and December 26. Data were collected on different phenological growth stages, dry matter, physiological attributes, yield, and yield attributes. A delay in sowing date delayed the time required for seedling emergence, to reach the 6-leaf collar, maturity stage, and also reduced yield. The planting of PSC-121 on November 26 gave the highest dry matter plant^-1, the number of grains cob^-1, and 100- grain weight that resulted in the highest grain yield (11.65 t/ha) of the genotype.

Keywords: Maize, Genotypes, Sowing date, Phenology, Performance

Location: Sher-e-Bangla Agricultural University, Dhaka-1207.

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Variety and Species

Commodity: Maize, Maize

Objectives:

To identify the morphological and physiological traits to heat stress of maize genotypes with sowing date.

Methodology:

The experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka-1207, during the rabi season of 2017-2018. The soil was Shallow Red Brown Terrace that belongs to the Tejgaon soil series under the Agro-ecological Zone AEZ-28), Madhupur Tract (Rashid et al., 2018). The experimental area was situated at 23^o 41 N latitude and 90^o22 E longitude at an elevation of 8.6 meters above sea level (Khanam et al., 2016). The experiment comprised two factors; varieties: V₁ = PSC 121, V₂ = Yangnuo-7, V₃ = Youngnau- 30 and V4 = Changnuo-6; and sowing date: S1= November 26, S2= December 11 and S3= December 26, 2017. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Unit plot size was 2.4 m ´ 3.5 m. The amount of fertilizer in the form of urea, triple superphosphate (TSP), muriate of potash (MoP), gypsum, zinc sulphate, and boric acid was calculated according to BARI (2016). The total amount of TSP, MoP, gypsum, zinc sulphate, and boric acid, and 1/3rd of total urea were broadcasted and incorporated in a plot two days before sowing. The rest of the urea was top-dressed in two equal installments: One at 4-6 leaf stage and another at 10-12 leaf stage (pre-tasseling stage). Cow dung was applied @ 5 ton/ha at the time of final land preparation. Seeds of white maize genotypes were sown in a line 60 cm ´ 20 cm apart. Different intercultural operations such as thinning, weeding, watering, earthing up, etc. were done when necessary. Phenological, growth, and yield data were measured. The collected data were analyzed, and the mean differences were compared by least significant difference (LSD) using a computer-operated program Statistics 10.

Source of Information: Bangladesh Agron. J. 2021, 24(1): 57-70

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the present study, it may be concluded that the genotype PSC-121 gave the highest yield and yield attributes when sown on November 26. This information may be useful for maize growers and researchers.

Knowledge Management: Journal