Publication Date
1985
Location
Kyoto Japan
Description
We found out the vegetative reproduction from node in timothy. We examined the demography and the intra-population variation of this reproduction in a 17-year-old pasture, and the potential ability to reproduce under the wet and undisturbed greenhouse condition. Also, clone analysis using peroxidase isozyme was carried out to detect the distributional patterns of genets in the above pasture. A number of propagules were found, most had short life-span but a few grew to flower and recruited into the large size class. Most propagules derived from the top-vegetative elongated tillers (Abnormal tillers), which appeared in autumn. This reproduction occured frequently in semi-marsh and lightly grazed flat, but infrequently in marsh and heavily grazed flat, although these areas were located nearly each other. The potential ability of propagule to spread was 120 cm or more. The results obtained suggest that this reproduction occurs frequently in the areas of pasture with suitable grazing pressure, low vegetational cover and high soil moisture, and that the potential propagules are able to spread at long distance and grow tel flower under the undisturbed and wet condition. In the above pasture, genets often dispersed several ramets, and their dispersal patterns were different among the adjacent areas. The results from clone analysis suggest that there is a close relationship between the reproductive methods and the environmental factors such as grazing pressure, community structure and soil condition.
Citation
Sawada, H; Hirano, S; and Tsuda, Ch, "Vegetative Reproduction from Node and Population Structure of Timothy (Phleum pratense L.) in a Pasture" (1985). IGC Proceedings (1985-2023). 118.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/118)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Vegetative Reproduction from Node and Population Structure of Timothy (Phleum pratense L.) in a Pasture
Kyoto Japan
We found out the vegetative reproduction from node in timothy. We examined the demography and the intra-population variation of this reproduction in a 17-year-old pasture, and the potential ability to reproduce under the wet and undisturbed greenhouse condition. Also, clone analysis using peroxidase isozyme was carried out to detect the distributional patterns of genets in the above pasture. A number of propagules were found, most had short life-span but a few grew to flower and recruited into the large size class. Most propagules derived from the top-vegetative elongated tillers (Abnormal tillers), which appeared in autumn. This reproduction occured frequently in semi-marsh and lightly grazed flat, but infrequently in marsh and heavily grazed flat, although these areas were located nearly each other. The potential ability of propagule to spread was 120 cm or more. The results obtained suggest that this reproduction occurs frequently in the areas of pasture with suitable grazing pressure, low vegetational cover and high soil moisture, and that the potential propagules are able to spread at long distance and grow tel flower under the undisturbed and wet condition. In the above pasture, genets often dispersed several ramets, and their dispersal patterns were different among the adjacent areas. The results from clone analysis suggest that there is a close relationship between the reproductive methods and the environmental factors such as grazing pressure, community structure and soil condition.
