Planting Times and Varieties on Incidence of Bacterial Disease and Yield Quality of Broccoli during Rainy Season in Southern Thailand

Karistsapol Nooprom, Quanchit Santipracha


The aims of this study were to determine the effect of planting times and varieties on incidence of bacterial disease and yield quality of broccoli grown during rainy season in southern Thailand. The research was carried out at Prince of Songkla University from July, 2011 to January, 2012. The design was a split-plot in a randomized complete block with four replications. The result showed that the Yok Kheo grown in July was observed with the lowest incidence of soft rot disease of 27.68% while the highest incidence of 80.11% was found in the Top Green when planting in November. In July, all varieties of broccoli had not been affected by black rot disease. After that, their incidences increased when planting between August and December. The four broccoli varieties had the highest disease incidence of 87.42-97.57% when planting in October, followed by September, November and December of 74.72-94.97%. The Yok Kheo had the highest yield quality when planting in July and December with total yield of 4.70-5.29 t/ha. It is an interesting new hybrid variety. It gave higher yield quality than Top Green which is popular variety grown in southern Thailand.

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