Publication Date
1997
Description
A 3-week-treatment of nitrogen dressings and of shoot cuttings were conducted on Miscanthus floridulus before the harvest. The nitrogen dressing increased the fresh weight and dry matter of the plants, but did not increase the plant height and shoot number. The reserved nutrients, especially the sugars and starch in the rhizomes were decreased by the cut treatments. Crude protein in the rhizomes was increased with the nitrogen amounts applied, though the carbohydrates were decreased. The decrease in reserved nutrients caused the growth inhibition of new shoots, and the more the reserved nutrients decreased the more severely was the growth inhibited. There was a positive correlation between the numbers of stubble and of new shoots. The number of new shoots was settled at 3 weeks after the harvest. The sugar contents in the stubble and rhizomes were correlated with the leaf area, the fresh weight and dry matter of new shoots.
Citation
Wang, Y C. and Lee, M L., "Effect of Nitrogen on the Reserve Nutrients of Rhizomes and Their Relation to Shoot Regrowth in Miscanthus Floridulus" (2024). IGC Proceedings (1993-2023). 9.
https://uknowledge.uky.edu/igc/1997/session21/9
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Nitrogen on the Reserve Nutrients of Rhizomes and Their Relation to Shoot Regrowth in Miscanthus Floridulus
A 3-week-treatment of nitrogen dressings and of shoot cuttings were conducted on Miscanthus floridulus before the harvest. The nitrogen dressing increased the fresh weight and dry matter of the plants, but did not increase the plant height and shoot number. The reserved nutrients, especially the sugars and starch in the rhizomes were decreased by the cut treatments. Crude protein in the rhizomes was increased with the nitrogen amounts applied, though the carbohydrates were decreased. The decrease in reserved nutrients caused the growth inhibition of new shoots, and the more the reserved nutrients decreased the more severely was the growth inhibited. There was a positive correlation between the numbers of stubble and of new shoots. The number of new shoots was settled at 3 weeks after the harvest. The sugar contents in the stubble and rhizomes were correlated with the leaf area, the fresh weight and dry matter of new shoots.
