Abstract
Performance of Italian ryegrass varieties: Effect of cutting stage on dry matter and total non-structural carbohydrates percentages
Highlights
One of the significant plant's responses to different stresses is changes in carbohydrates reserves such as total non-structured carbohydrates (TNC) contents due to defoliation and variations in climatic conditions, which had an impact on dry matter yield
The total non-structural carbohydrates are known to be translocated within the plant and used for growth, respiration, and they are essential in the recovery of plants from disturbances
To maintain high dry matter (DM) intake by livestock, 18 to 20% of DM should be maintained to maximize the productivity of ruminants (NRC, 2000)
Summary
One of the significant plant's responses to different stresses is changes in carbohydrates reserves such as TNC contents due to defoliation and variations in climatic conditions, which had an impact on dry matter yield. The total non-structural carbohydrates are known to be translocated within the plant and used for growth, respiration, and they are essential in the recovery of plants from disturbances. Large quantities of soluble carbohydrates, predominantly fructans are stored in the vacuoles of the leaf and crown tissues during cold conditions (Huner et al, 1993). Cutting is known to influence DM production and quality of plant (Wadi et al, 2004). The objective of this study was to investigate the effect of cutting stage on dry matter, and non-structural carbohydrates of fourteen (14) selected Italian ryegrass varieties (tetraploid and diploid)
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