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Yield and Quality Evaluation of Organic Lettuce

M Nazim Uddin
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

Ferdouse Islam
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

M Azamt Ullah
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

G M A Halim
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

Abstract/ Executive Summary:

Keywords: Vegetables, Green lettuce, Lettuce, Harvest, Lettuce R7, BARI Lettuce 1, Organic Lettuce

Location: Olericulture division of HRC, BARI Gazipur, Bangladesh

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Lettuce

Objectives:

To find out suitable genotypes, and their nutritional quality at different harvesting stage.

Methodology:

The study has been carried out at organically converted field under the olericulture division of HRC, BARI Gazipur from November 2017 to February 2018 to find out suitable genotypes, and their nutritional quality at different harvesting stages. The lettuce genotype namely, Green lettuce, LT0012, LT016, Lettuce R7 and BARI Lettuce 1 (Check) were assessed by setting two factors to experiment with RCB design. The variety/genotypes were treated as factor A and harvesting time was factor B with replicated thrice. Seedlings were raised in 500 ml pots filled in standard organic media (50% of each well-decomposed cow dung and organic soil). The plot fertilized with organic input at the rate of 15 t /ha well-decomposed cow dung. Half amounts of cow dung were applied during land preparation. After final preparation of land, a 1.2 m wide and 18 m length bed was raised apart from a 50 cm drain in between two beds. Fifty percent of the remaining half cowdung was incorporated in the bed. Then pits were dug with 50 x 50 cm distance and the remaining cow dung and 100 g of BAOFER fertilized each pit. Three leaves stage seedlings were planted in each pit followed by microbial fertilizer contained water. Data were recorded on canopy height (cm), the number of leaves per plant, leaf length, leaf breadth, leaf yield per plant, leaf dry matter (%). Color (L, a*, b*) was measure by using a Chroma meter (Cr 400, Minolta, Japan) and β-carotene was calculated according to (Tilahun et al, 2018). Carotenoids and total nitrogen of leaves were calculated from SPAD value recorded by a SPAD meter.

Source of Information: Annual Research Report-2017-2017, Olericulture Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering the studied parameters of the genotypes it may be concluded that lettuce genotypes LT0016 may be selected as this one produced bigger and the highest number of leaves. LT 0012 and Lettuce R7 also showed considerable results. However, to recommend as variety for growing organically further study is needed for confirmation.

Knowledge Management: Report/Proceedings