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International Journal of Agricultural Research
Year: 2009  |  Volume: 4  |  Issue: 9  |  Page No.: 257 - 269

Efficacy of Boron Spraying on Growth and Some External Qualities of Lettuce

B. Chutichudet and P. Chutichudet    

Abstract: A study to evaluate boron, in terms of borax (B4O.2Na.10H2O) or boric (H3BO3) by foliar spraying, on growth and external qualities was conducted on lettuce var. Grand Rapids under field conditions. A Factorial in Completely Randomized Design was arranged with four replications and composed of two factors; two types of boron (borax or boric) with four concentration rates (0, 0.0625, 0.125 or 0.1875%). The results showed that plants-treated with 0.0625% boric had the maximal plant height and bush size. While two types of boron at any concentration had no effect to biomass, chlorophyll content and the leaf colour. Furthermore, plants treated with 0.0625% boric experienced the lowest browning appearance at harvesting stage.

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