ISSN:
1365-2494
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Productivity, seasonal growth and persistence of 10 perennial ryegrass (Lolium perenne L.) varieties were assessed al an upland (305 m) and lowland (30 m) site in mid-Wales. Averaged over 3 harvest years (1979–81), mean dry matter (DM) production at 8.8 t ha−1 was 22% lower in the upland environment, with spring (April and May) growth showing greatest contrast varying from only 6% of that in the lowland in 1979, after a severe winter, to 113% in 1981.Relative ranking of varieties differed considerably between the two environments and no correlation was found between DM production at the two sites (r= 0.5945). Early heading varieties performed better in the spring than late types at the upland site. A comparison of the results with those published from official variety testing trials gave a positive relationship under lowland conditions (r= 0.7162*) but no correlation with those from the upland centre (r= 0.1969).The findings of the study show that relative productivity of varieties, but not persistency, differs between upland and lowland environments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2494.1985.tb01759.x
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