The determinate allele (de) of cucumber (Cucumis sativus L.) causes shorter vine length and fewer and shorter internodes and lateral branches than the indeterminate allele (De). Four sets of cucumber inbreds carrying determinate or indeterminate alleles were compared with respect to root growth rate in the field and greenhouse using an herbicide banding method. Although the lines exhibited the expected differences in shoot growth, differences in root growth were not correlated with the differences in shoot growth. These results indicate that root growth was independent of the determinate shoot growth allele.
Rebecca Grumet and Robert Duvall
George E. Boyhan, Suzzanne Tate, Ryan McNeill, and Jeffrey McConnaughey
determinate. Determinate plants did not grow taller than the stakes used. Semideterminate varieties grew 1–2 ft beyond the top of the stake and indeterminate plants grew more than 2 ft longer than the stakes. Vine ripe fruit were harvested on 12, 22, 26 July
John E. Stenger and Harlene Hatterman-Valenti
A grapevine is generally characterized as a woody vine. However, within the North Dakota State University Grape Germplasm Enhancement Project, a novel determinate natural mutant, with natural self-limited growth and reproductive habit, was
Elisabeth Hodgdon, Jennifer Bonina Noseworthy, and Rebecca Grube Sideman
Several determinate and dwarf tomato ( Solanum lycopersicum L.) cultivars have been developed for retail sales in hanging baskets and containers to be marketed before or at first fruit ripening ( Augustine et al., 1981 ; Crill et al., 1973
Felix C. Serquen, Jeff Bacher, and Jack E. Staub
Plant architecture can be manipulated in cucumber (Cucumis sativus L.) to provide an array of phenotypes. Determinate, multiple-lateral plants are unique because they afford an opportunity to increase fruit yield per plant. Estimates of genetic variances, numbers of genetic factors, and genotypic and phenotypic correlations between traits were made in a population, segregating for sex expression, leaf size, and plant habit at low plant density (≈19,000 plants/ha). Replicated evaluation of 100 F3 families derived from an initial mating between a gynoecious, determinate, moderately branched line (G421) and a monoecious, indeterminate, multiple lateral branching line (`H-19') indicated that mainstem length and multiple lateral branching exhibit mostly additive genetic variance. For sex expression, additive and dominant genetic variances were important. The minimum number of genetic factors controlling sex expression, number of lateral branches, and mainstem length were estimated at five, four, and eight, respectively. Phenotypic and genotypic correlations between traits indicated that relative leaf size may influence fruit mass while having only limited influence on the number of fruit produced per plant. The amount and type of genetic variation suggests that the development of an array of determinate, multiple-lateral branching plant types with varying sex expression and plant stature is possible.
H.Y. Hanna, A.J. Adams, and L.L. Black
W.J. Ashcroft, S. Gurban, R.J. Holland, C.T. Waters, and H. Nirk
W.B. Evans, V. Cerven, N. Winter, and C.E. Coker
high numbers of fruit per plant, the picking and packing labor for a cherry or grape tomato crop can be substantially higher. In contrast, tomatoes grown for processing are usually determinate roma- or paste-type tomatoes, with an average fruit size of
Melisa Crane, Todd C. Wehner, and Rachel P. Naegele
vertically on a trellis to minimize space. Alternatively, gardeners may choose to grow dwarf, determinate, or compact cucumber cultivars that have shorter vines for patio containers or small garden spaces. These cultivars are sometimes categorized as compact