Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Performance of Different Eggplant Varieties at Different Light Levels for Agroforestry System

M. M. U. Miah
Department of Agroforestry, Hajee mohammad Danesh Science and Technology University, Dinajpur; Bangladesh.

G. Miah
Department of Agroforestry, BSMRAU, Gazipur, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted to determine the effect of different reduced light levels on the growth and yield of eggplant. There were four light treatments i.e. 75, 50 and 25% PAR along with one control treatment (full sunlight i.e. 100% PAR). The varieties of eggplant were Nayantara, Kajla and Uttara. All these varieties of eggplant showed statistically similar plant height at each light levels, but varied significantly among the different light levels. In general, plant height of all varieties of eggplant increased with the decrease of light levels and the tallest plant was observed under 25% PAR irrespective of varieties. Number of primary branches and number of leaf per plant of all varieties varied significantly under reduced light conditions. However all these three varieties produced the highest number of fruit per plant at 100% PAR and reduced gradually with the reduction of light levels. Yield (t/ha) of eggplant irrespective of varieties were the highest under 100% PAR. However, yields decreased gradually with decrease of light levels. The yield of Nayantara, Kajla and Uttara at 100%, 75%, 50% and 25% PAR level were 50.51, 49.35, 44.48, 48.18, 47.8, 43.6, 46.81, 47.75, 33.13 and 27.13, 21.27, 11.77 t/ha, respectively. The results indicated that Kajla was the most shade tolerant followed by Nayantara upto 50% reduced light levels, based on yield performance, Uttara was the less tolerant to shade among the three varieties of eggplant.

Keywords: Reduced light, Eggplant, Growth, Yield components, Yield

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) farm

Start Date: 00-11-1999

End Date: 00-03-2000

Program Area: Farming System

Commodity: Brinjal

Objectives:

To know the performance of the eggplant varieties in different light levels.

Methodology:

The study was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) farm during the period from November, 1999 to March, 2000 with four different light treatments i.e. 100, 75, 50 and 25% photosynthetically active radiation (PAR). The reduced light levels (75, 50 and 25% PAR) were made by using mosquito nets of different sieve sizes. The mosquito nets were imposed up to 2.13 meter over the plots. The treatments were arranged in a randomized complete block design (RCBD) with three replications. The size of each plot was 2.5m x 2.5m i.e., 6 square meter. The test varieties of eggplant were Nayantara, Kajla and Uttara. The seedlings of these varieties were collected from the Bangladesh Agricultural Development Corporation (BADC) farm, Gazipur and healthy uniform sized seedlings were transplanted with a spacing of 60 cm x 50 cm in the plots on 30 November, 1999. Recommended doses of fertilizers were applied in the plots. All cow dung, TSP and half of the Urea and MP were incorporated during the final land preparation. The remaining Urea and MP were top dressed in two equal installments at the time Flowering and fruiting. The crop was irrigated properly after each top-dressed and thereafter, as and when needed. Recommended cultural operations were done in time. Five representing plants were tagged from each plot for data collection. Growth characters such as plant height, number of leaf per plant, number of primary branch per plant, number of total branches per plant were measured. Fruits were harvested time to time when it attained its edible size and fruit length, fruit weight and number of fruit per plant were recorded as yield contributing characters. Fresh yield per plant was determined from summation of each fruit weight of a plant and then converted in to ton per ha. Data were analysed using MSTAT and mean separation was done followed by DMRT.

Source of Information: J. Sci. technol. (Dinajpur), Vol. 5: 44-51(2007), ISSN: 1994-0386.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From the results it is clear that Kajla and Nayantara can be grown in the partial shade of agro forestry system but the result was based on artificial shade, so it is essential to evaluate the performance of these eggplant varieties under the tree canopy before advocacy for large scale production in agro forestry system.

Knowledge Management: Journal