Effects of Chitooligosaccharide on Growth and Yield of Lettuce (Lactuca sativa L.) cv. Green Cos
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Abstract
The effects of chitooligosaccharides (COS) on growth and yield of greencos salad were studied. The experimental design was 3×2 Factorial in Completely Randomized Design (CRD) with 2 factors: Factor 1 was concentration of COS at 1, 2 and 4 ml/L and Factor 2 was administration of COS at 7 and 14 days after planting together with the control (no chitooligosaccharides) using 4 replications. The results showed that COS administration at the rate of 4 ml/L and spraying every 14 days gave the highest fresh weight of greencos salad (134.78 g) when compared to COS at the rate of 4 ml/L and spraying every 7 days, COS administration at the rate of 2 ml/L and spraying every 7 and 14 days and COS 1 ml/L and spraying every 7 and 14 days, respectively. The control (no COS) gave the minimum fresh weight of 91.87 g.
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King Mongkut's Agricultural Journal
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