Cucurbit Genetics Cooperative Report 9:3-4 (article 1) 1986 H. Abd. Aziz, B.H. McCown, and R.L. Lower Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706 A tissue culture system may be useful in rescuing potentially-resistant fruits from tests using Rhizoctonia solani and Pythium aphanidermatum. A screening program with subsequent callus initiation and plantlet regeneration from […]
R. L. Lower
Segregation of the Determinate (de) Allele in Crosses Between Cucumis sativus L. and C. sativus var. hardwickii (R.) Alef.
Cucurbit Genetics Cooperative Report 8:2-3 (Article 1) 1985 D.E. Delaney and R.L. Lower University of Wisconsin, Madison, WI 53706 In 1982, we initiated a breeding program for increasing the number of lateral branches on determinate plant types. The objective was to alter the plant architecture of current determinate lines by incorporating the multiple lateral branching […]
Effects of the Determinate Locus on Number of Lateral Branches in Crosses between Four Cucumber Lines and Cucumis sativus var. hardwickii L.
Cucurbit Genetics Cooperative Report 7:3-5 (article 1) 1984 D.E. Delaney and R.L. Lower University of Wisconsin, Madison, WI 53706 The shorter vine and concentrated fruit set of determinate pickling cucumbers are well suited to once-over mechanical harvesting (3). However, determinate and short internode dwarf types have fewer and shorter lateral branches than the normal indeterminate […]
Pickling Cucumber Inbred Line Development by Full-sib Family Selection II
Cucurbit Genetics Cooperative Report 7:8 (article 3) 1984 K. Lertrat and R. L. Lower University of Wisconsin, Madison, WI 53706 One of the goals of our breeding program is the development of a commercial high-yielding mechanically harvestable hybrid cultivar. After the completion of three cycles of selection for improving fruit number per plant in two […]
Pickling Cucumber Population Improvement for Increased Fruit Yield II
Cucurbit Genetics Cooperative Report 7:9 (article 4) 1984 K. Lertrat and R. L. Lower University of Wisconsin, Madison, WI 53706 Direct selection to improve fruit number per plant has been used as one of the breeding strategies to improve pickling cucumber yield for a once-over mechanical harvesting system in our breeding program. The population improvement […]
Pickling Cucumber Population Improvement for Increased Fruit Yield
Cucurbit Genetics Cooperative Report 6:18-19 (article 9) 1983 K. Lertrat and R. L. Lower University of Wisconsin, Madison, WI 53706 Low fruit number per plant (i.e. fruit yield) is the major yield-limiting factor of all existing pickling cucumber cultivars for a once-over mechanical harvesting system. Fruit yield average over three years under commercial field conditions […]
Pickling Cucumber Inbred Line Development by Full-sib Family Selection
Cucurbit Genetics Cooperative Report 6:16-17 (article 8) 1983 K. Lertrat and R. L. Lower University of Wisconsin, Madison, WI 53706 In an inbred-hybrid breeding system, inbred line development or extraction is preceded by a population improvement phase. Full-sib family selection as proposed by corn breeders (1, 2, 4) is a suitable method for extracting inbred […]
Effect of Inbreeding on Seed Traits of Compact Cucumber
Cucurbit Genetics Cooperative Report 6:5-7 (article 2) 1983 M. D. Edwards and R. L. Lower University of Wisconsin, Madison, WI 53706 Previous reports have described seed quality problems associated with the compact plant type (cp cp) in cucumbers (1). Variability exists in compact populations for emergence potential of seeds as well as for associated traits […]
Effect of Within Row Spacing on Mature Fruit Yield of Three Cucumis sativus var. hardwickii Derivatives and a Gynoecious Inbred of Cucumis sativus
Cucurbit Genetics Cooperative Report 6:3-4 (article 1) 1983 D. E. Delaney, R. L. Lower and M. D. Edwards University of Wisconsin, Madison, WI 53706 Cucumis sativus var. hardwickii has great potential as a source of germplasm for improving yield of pickling cucumbers. It is unique in that it sets large numbers of seeded fruit, and seems to lack […]
The Genetic Regulation of Several Seed Traits in Compact (cp cp) Cucumbers – Maternal vs. Embryonic Control
Cucurbit Genetics Cooperative Report 5:8-9 (article 4) 1982 M. D. Edwards and R. L. Lower University of Wisconsin, Madison, WI 53706 Seed quality is a major limitation to utilization of the compact plant-type in cucumbers (1). Alterations in seed weight and shape are associated with poor emergence and are apparently pleiotropic effects of the gene […]