Effect of inbreeding on horticultural performance of lines developed from an open-pollinated pickling cucumber population |
| |
Authors: | David B Rubino Todd C Wehner |
| |
Institution: | (1) Department of Horticultural Science, North Carolina State University, 27695-7609 Raleigh, NC, USA |
| |
Abstract: | Summary The effect of self-pollination of cucumber (Cucumis sativus L.) for 6 generations in lines developed from the North Carolina Medium Base Pickle population was determined by regression of trait expression for each generation on Wright's coefficient of inbreeding. Two yield traits (total and marketable), earliness and 3 fruit quality traits (shape, color and seedcell size) were evaluated in 2 environments (spring and summer, 1983). The regression did not result in significant negative slopes, indicating that inbreeding depression was not important in the population for the traits studied. Midparent heterosis was found for most traits in many hybrids obtained from crossing S6 lines with the gynoecious inbred line, Gy 14A. |
| |
Keywords: | Cucumis sativus pickling cucumber hybrid vigor inbreeding depression Wright's coefficient of inbreeding yield earliness fruit quality |
本文献已被 SpringerLink 等数据库收录! |