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Evaluation of Lettuce Variety for Hydroponics Culture

A.K.M. S. R. Mollik
Senior Scientific Officer
Olericulture Division, HRC, BARI, Gazipur

A. K M. Khorsheduzzaman
Senior Scientific Officer
Entomology Section, HRC, BARI, Gazipur

Abstract/ Executive Summary:

The experiment was conducted at the glasshouse of Vegetable (Olericulture) Division, Horticulture Research Centre, BARI, Joydebpur, Gazipur, during November 2010 to March 2011. Two lettuce varieties viz., (BARI Lettuce-1, BARI Lettuce-2) were planted on November 2010. Hydroponics is a part of soil-less culture, in other word a modern crop production technology on nutrient-water solution. Under this technology plants can be grown on nutrient solutions containing all essential nutrient elements are available proportionately needed for optimum growth, development and production crops. The water act as media provide necessary oxygen, nutrients, and support for plant root just as soil does. There is not much physiological difference between plants grown hydroponically and those grown in soil in fields. In field crops, plant takes nutrient which are available in soil and in some cases supplied if deficit; but in hydroponics nutrients are supplied artificially time to time as nutrient solution. However, from the study it is revealed that BARI Lettuce-1 had the highest plant growth 40 cm compared to BARI Lettuce-2. But the number of leaves, leaf size, leaf weight, total plant weight and total marketable yield was recorded higher in BARI Lettuce-2. Therefore, BARI Lettuce-2 performed best between two lettuce varieties in hydroponics culture.

Keywords: Evaluation, Lettuce, Hydroponics

Location: Olericulture Division, Horticulture Research Centre, BARI, Joydebpur, Gazipur

Start Date: 01-11-2010

End Date: 31-03-2011

Program Area: Variety and Species

Commodity: Lettuce

Objectives:

To produce lettuce in hydroponics culture.

Methodology:

The experiment was conducted at the glasshouse of Vegetable (Olericulture) Division, Horticulture Research Centre, BARI, Joydebpur, Gazipur, during November 2010 to March 2011. Two lettuce varieties viz., (BARI Lettuce-1, BARI Lettuce-2) were planted on November 2010. The seedlings of lettuce were grown on tyro-foam. About 20 days old seedlings of lettuce were planted at a spacing of 20 x 20 cm in iron Tray supported by cork-sheet. For planting seedlings, small round holes were made. Plant to plant distance was 20 cm and row to row distance was 20 cm. The lettuce was harvested after 35 days of planting. The pH and EC of the nutrient solution were measured twice in a month using pH-meter and EC-meter. Higher value of EC indicated the richness of available nutrient in solution. When the nutrient in the nutrient solution goes down than stock solution and water were added to filled it. The EC and pH of the nutrient solution were maintained at 1.5-1.8 and 6.0-6.5, respectively during the study period.

Source of Information: HRC Annual Report, 2010-11

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 15000

Total Budget (Tk.) : 15000

Achievement/Findings:

The study revealed that BARI Lettuce-1 had the highest plant growth 40 cm compared to BARI Lettuce-2. But the number of leaves, leaf size, leaf weight, total plant weight and total marketable yield was recorded higher in BARI Lettuce-2. Therefore, BARI Lettuce-2 performed best between two lettuce varieties in hydroponics culture.

Knowledge Management: Report/Proceedings