The three primary reasons for using PGRs on bananas are to improve post-harvest green life, alleviate plant stress and increase yields.
To improve post-harvest green life, the VBC PGR RyzUp® can be applied prior to packing and shipping in combination with alum and fungicides. The goal is to prevent the bananas from de-greening (ripening and turning yellow) as any sign of yellowing will result in bananas being rejected. After washing the crop, RyzUp 40SG is applied directly to the bananas’ hands in the form of a drench or spray, or simply brushed onto the cut ends.
This post-harvest application, which is compatible with other standard post-harvest treatment programs, adds about one week of green life to the crop. It also maintains fruit quality longer, ensuring the bananas will get to their destination in optimum condition. In doing so, RyzUp increases the percentage of marketable fruit after transport.
Environmentally friendly RyzUp also has two other helpful uses. A unique formulation of the naturally occurring plant growth regulator gibberellic acid (GA3), RyzUp stimulates cell division and elongation in plants, so it can alleviate plant stress in bananas caused by adverse weather or disease conditions. With this approach, RyzUp is combined with fungicides and applied as a foliar spray, by ground and/or air, in a year-round program. In addition, when applied in new plantations, RyzUp’s growth-enhancing activity can be used to improve yields.