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Effect of Different Moisture Regimes on the Growth and Quality of Gladiolus

R. A. Begum
Senior Scientific Officer
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M. N. Rahman
Scientific Officer
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

A. T. M. A. I. Mondol
Scientific Officer
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M. J. Rahman
Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, Bangladesh

F. N. Khan
Scientific Senior Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, Bangladesh

Abstract/ Executive Summary:

An Experiment was conducted at the floriculture field of Horticulture Research Centre, BARI, Joydebpur during 2003-2004 and 2004-05 to find out the irrigation requirement and a proper irrigation schedule of gladiolus (var. GL-001). Five irrigation schedules were considered viz.; I₀ : no irrigation, I₁ : plant emergence + spike initiation, I₂ : 4 leaves + spike initiation, I₃ : plant emergence + 4 leaves + spike initiation and I₄ : plant emergence + 4 leaves + spike initiation + flower initiation. Irrigation had significant influence on the increase number of spike of gladiolus over control (non irrigated). On the basis of two years result the highest spike yield of gladiolus was recorded with three irrigations applied each at sprouting, 4 leaves and spike initiation stage which was statistically identical to four irrigations each at plant emergence, 4 leaves, spike initiation and flower initiation stage. The lowest spike yield of gladiolus was obtained from control treatment (no irrigation). The highest total water expense (TWE) bearing was in I₄ and the lowest in I₀. The highest water expense efficiency was obtained with non-irrigated (control) treatment (I₀). Soil water depletion was decreased with increased irrigation water.

Keywords: Moisture regime, Growth and quality, Spike initiation, Irrigation schedule

Location: Floriculture field of Horticulture Research Centre, BARI, Joydebpur

Start Date: 00-11-2003

End Date: 00-02-2005

Program Area: Crop-Soil-Water Management

Commodity: Gladiolus

Objectives:

To find out the irrigation requirement and a proper irrigation schedule of gladiolus (var. GL-001).

Methodology:

The experiment was conducted at the floriculture field of Horticulture Research Centre, BARI, Joydebpur during 2003-2004 and 2004 -05 to find out the irrigation requirement and a proper irrigation schedule of gladiolus for better growth and yield. The soil of the experimental plot was Grey Terrace Soil having bulk density 1.5 g cc^-1, pH 5.6 and field capacity 38.02 percent by volume. Five irrigation schedules were tested in the study, which were I₀ : no irrigation, I₁ : plant emergence + spike initiation, I₂ : 4 leaves + spike initiation, I₃ : plant emergence + 4 leaves + spike initiation and I₄ : plant emergence + 4 leaves + spike initiation + flower initiation. The experiment was laid out in a randomized complete block design with three replications. The variety used was GL 001. The plot dimension was 1 m x 0.9 m. Medium sized corms were planted on November 27 and 25, 2004 and 2005, respectively in lines maintaining row and plant spacing of 25 and 15 cm respectively. The crop was fertilized with 300 kg N ha^-1 from urea, 55 kg P ha^-1 from triple super phosphate, 166 kg K ha^-1 from muriate of potash and 20 kg Mg ha^-1 from magnesium oxide and 10 t cowdung ha^-1. One third of N and whole amount of other fertilizers were applied as basal and the remaining N was applied in two equal splits at 30 and 60 days after sowing. Four weeding were done at 15, 25, 35 and 43 days after sowing. No plant protection measures were taken. As per treatments, irrigations were made with calculated amounts of water required to raise the soil moisture status of the concerned plots up to field capacity. Total water expense was calculated using the water balance equation and water expense efficiency was determined. Harvesting was started on 24^thJanuary and continued up to 20^th February in both the years.

Source of Information: Int. J. Sustain. Crop Prod. 2(5):43-45, 2007

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The application of three irrigations applied each at sprouting, 4 leaves and spike initiation stage at Joydebpur is recommended for better growth and yield of gladiolus.

Knowledge Management: Journal