Effect of growing media, transplanting time and pinching on the quality of potted Petite Gold marigold (Tagetes patula)

Abstract

‘Petite Gold’ marigold aged 35, 40 and 45 days were studied to test the effects of transplanting and pinching on four different media. Medium A consisted of charcoal husk : rice hull : coir dust : wood shaving at the ratio of 1:1:1:1 by volume, medium B having charcoal husk : rice hull : coir dust at the ratio of 3:1:2 by volume, medium C having charcoal husk : rice hull : coir dust : wood shaving : clay Kampangsan Series at the ratio of 1:1:1:1:1 by volume and medium D having charcoal husk : rice hull : coir dust at the ratio of 1:1:1 by volume. The results showed that marigold transplanted at 40 days in the medium C and no pinching gave the best quality of potted marigold with the most flower number and the biggest plant size.