Publication Date
1993
Description
Two new cultivars Hokuseki and Taisetsu of red clover (Trifolium pratense L.) were selected for disease tolerance and high vigour in the third year of growth to improve persistence. This· paper compares persistence of the cultivars with that of·Sapporo, a check cultivar, and elucidates what determines the persistence of the cultivars. Five-year tests showed that Hokuseki and Taisetsu yielded higher than Sapporo in later years. The cultivars were more tolerant than Sapporo, to Sclerotinia trifoliorum and some other diseases. These results suggest that selection for high vigour in the third year under snowy conditions was effective. in selecting for persistence and good tolerance to S. trifoliomm. The result of a local adaptability test showed that the cultivars were adapted io snowy areas, rather than less snowy areas, in Hokkaido. Local adaptability was found to be related to vigour of aftermath: cultivars adapted to snowy areas showed poor vigour of aftermath, and to less snowy areas, more vigour of aftermath.
Citation
Yamaguchi, Hidekazu; Sawai, Akira; and Uchiyama, Kazuhiro, "Improvement of Red Clover Persistence in Japan" (2024). IGC Proceedings (1993-2023). 12.
https://uknowledge.uky.edu/igc/1993/session17/12
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Improvement of Red Clover Persistence in Japan
Two new cultivars Hokuseki and Taisetsu of red clover (Trifolium pratense L.) were selected for disease tolerance and high vigour in the third year of growth to improve persistence. This· paper compares persistence of the cultivars with that of·Sapporo, a check cultivar, and elucidates what determines the persistence of the cultivars. Five-year tests showed that Hokuseki and Taisetsu yielded higher than Sapporo in later years. The cultivars were more tolerant than Sapporo, to Sclerotinia trifoliorum and some other diseases. These results suggest that selection for high vigour in the third year under snowy conditions was effective. in selecting for persistence and good tolerance to S. trifoliomm. The result of a local adaptability test showed that the cultivars were adapted io snowy areas, rather than less snowy areas, in Hokkaido. Local adaptability was found to be related to vigour of aftermath: cultivars adapted to snowy areas showed poor vigour of aftermath, and to less snowy areas, more vigour of aftermath.
