Publication Date
1997
Description
Our objective was to determine the physiological changes that accompany selection from within a germplasm for contrasting fall dormancy reaction. Selection for greater fall dormancy improved winter survival of CUF 101 from 1 to 93%. The more fall dormant CUF 101 had higher sugar concentrations in buds and roots. Roots of the more fall dormant CUF 101 also contained higher soluble protein concentrations when compared to the other CUF 101 germplasms. Root protein extracts obtained in Dec. from the more fall dormant CUF 101 contained at least one polypeptide not found in protein extracts of the other CUF 101 germplasms. Efforts to characterize changes in gene expression that accompany winter hardening of these germplasms are underway.
Citation
Volenec, J J.; Cunningham, S M.; and Teuber, L R., "Winter Survival and Physiology of Contrasting Fall Dormancy Selections of Alfalfa" (2024). IGC Proceedings (1993-2023). 10.
https://uknowledge.uky.edu/igc/1997/session7/10
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Winter Survival and Physiology of Contrasting Fall Dormancy Selections of Alfalfa
Our objective was to determine the physiological changes that accompany selection from within a germplasm for contrasting fall dormancy reaction. Selection for greater fall dormancy improved winter survival of CUF 101 from 1 to 93%. The more fall dormant CUF 101 had higher sugar concentrations in buds and roots. Roots of the more fall dormant CUF 101 also contained higher soluble protein concentrations when compared to the other CUF 101 germplasms. Root protein extracts obtained in Dec. from the more fall dormant CUF 101 contained at least one polypeptide not found in protein extracts of the other CUF 101 germplasms. Efforts to characterize changes in gene expression that accompany winter hardening of these germplasms are underway.
