Cultivar and Environment Effects on Annual Ryegrass Forage Yield, Yield Distribution, and Nutritive Value
Daren D. Redfearn*,a,
Brad C. Venutob,
W. D. Pitmanc,
M. W. Alisond and
Jerry D. Wardb
a Oklahoma State Univ., Plant and Soil Sci. Dep., Stillwater, OK 74078
b LSU AgCenter, Southeast Res. Stn., Franklinton, LA 70438
c LSU AgCenter, Rosepine Res. Stn., Rosepine. LA 70659
d LSU AgCenter, Macon Ridge Branch, Winnsboro, LA 71295

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Fig. 1. Year x location interaction for total forage yield of six annual ryegrass cultivars. Bars represent one standard error of the mean.
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Fig. 2. Distribution of forage yield by month for six annual ryegrass cultivars averaged cross 2 yr and four locations. Bars represent one standard error of the mean.
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Fig. 3. Weekly seedhead emergence for six annual ryegrass cultivars during the month of April averaged across four locations and 2 yr. Bars represent one standard error of the mean.
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Fig. 4. Weekly seedhead emergence for six annual ryegrass cultivars during the month of May averaged across four locations and 2 yr. Bars represent one standard error of the mean.
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Copyright © 2002 by the Crop Science Society of America.