Evaluation of Suitable Cassava Varieties on Group of Soil Series No.40 under Drought Area in Uttaradit Province
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Abstract
The study was a cassava varietal selection for cultivating in drought area with group of soil series No. 40 which is characterized as loamy, pH 5.5-7.0 and low fertility soil. Field experiment was conducted at Ban Pang Kho, Bo Thong sub-district, Thong saengkhan district in Uttaradit province. The experimental design was Randomized Complete Block Design (RCBD) with 4 replications and 5 treatments consisting of 5 cassava varieties namely; Rayong 5, Rayong 86-13, Rayong 15, Rayong 72, and Huay Bong 90. Cassava cultivation was carried out during June 2022 and March 2023. Results showed that there were significant differences (P<0.05) in both root starch and plant height, the highest root starch content of 31.8% was found in Rayong 86-13 variety. Plant height of Rayong 15, Huay Bong 90, Rayong 86-13 and Rayong 72 variety were higher than Rayong 5. Rayong 72 variety showed the highest fresh root and dry root yield of 4,204 and 1,750 kilogram per rai respectively. Huay Bong 90 variety had the highest harvest index and dry matter content; however, no statistical difference was found.
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