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Effect of Sunshine on the Growth and Scorching Damage of Areca Palm Cv. Mangla

A. K. Azad
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

A. K. M. Amzad Hossain
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

M. Biswas
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

A. Ahmed
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

G. H. Ghose
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

Abstract/ Executive Summary:

A study on the effect of sunshine on the growth and scorching damage of areca palm was carried out at the farm of Bangladesh Agricultural Research Institute, Gazipur. Completely shaded palm gave significantly higher vegetative growth like trunk height (147.15 cm), base girth (56.35 cm), number of internodes (23.0), length of internode (6.40 cm), early flowering (55%), and no scorching damage (0%) in areca palm than the open sun. Scorching damage was also controlled by wrapping dry banana leaves at the semihard trunk of palm during the summer months.

Keywords: Areca Palm, Sunshine, Shade, Scorching damage, Growth

Location: Bangladesh Agricultural Research Institute, Joydebpur.

Start Date: 00-09-1983

End Date: 00-00-1989

Program Area: Crop-Soil-Water Management

Commodity: Tree

Objectives:

To observe the effect of sunshine and shade on the growth and scorching damage of areca palm.

Methodology:

One year old seedlings of the variety Mangla were planted 2m apart aligning North- South and East-West at the fruit farm of the Bangladesh Agricultural Research Institute, Joydebpur on 30 September 1983. The study continued up to 1989. The palms are manured and fertilized twice a year in the beginning and at the end of the rainy season. Of these plants, 60 were grouped into (i) plants in open sun, (ii) plants in partial shade and (iii) plants in complete shade. The plants getting full sun throughout the day were considered as in open sun. Plants of partial shade were those which were exposed to sunlight except from 11 a.m. to 2 p.m., and this condition was created by planting the Bakphul (Sesbania grandifiora Pers.) 1m south of each palm. Plants in complete shade were those which were shaded for the whole day by big trees of about 7 to 10 m high, like mango (Mangifera indica), Jamun (Syzygium cumini), Bael (Aegle marmelos L.) and Epil-epil. All these shading plants were in existence before the palms were planted. These were about 3m to 5m south of palms. Four plants constituted a unit plot and each treatment replicated five times in RCB design. Data were recorded on vegetative growth like trunk height, base girth, top girth, number of internode, length of internode, growth index, leaf characters, such as total number of leaves, number of green leaves, size of lamina, number of leaflets, size of leaflets, colour of leaves, percentage of palms damaged due to solar radiation, and size and extent of damage. The data were analyzed statistically and the mean differences were compared by least significant differences (LSD).

Source of Information: Bangladesh Horticulture,20 (1) :13-16, June:1992 (ISSN 0379-4288)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Completely shaded palm gave significantly higher vegetative growth like trunk height (147.15 cm), base girth (56.35 cm), number of internodes (23.0), length of internode (6.40 cm), early flowering (55%), and no scorching damage (0%) in areca palm than the open sun. Scorching damage was also controlled by wrapping dry banana leaves at the semihard trunk of palm during the summer months.

Knowledge Management: Journal