Traditional varieties and selections of tropical pumpkins have long trailing vines that produce two to five fruit weighing from 2 to 20 kg each. Bush inbreds have been developed from crosses between `La Primera', `La Segunda', and `Seminole' with `Bush Butternut'. These inbred plants produce four to 10 early-maturing fruit weighing 1 to 2 kg each at the crown of the plant. Hybrids made with the vining types produce plants that have short or intermediate-length vines. Fruit are produced at the crown and on short laterals on the short-vine hybrids and on laterals on the intermediate-vine hybrids. Some short-vined and intermediate-vined hybrids produce higher yields than the traditional type, but fruit size is smaller and the fruit wall is generally thinner. C42-1-9-1 x Linea C. Pinta, an intermediate-vine type, produced the highest yield in spring (66.5 t·ha–1) and fall (39.9 t·ha–1) at Bradenton, Fla. About three fruit weighing 4 to 5 kg each were produced per plant.