The Accumulation and Distribution of Nitrogen in the Above-Ground and Below-Ground Plant Material of Sorghum vulgare var. Sudanensis

Authors

Carroll G. French, University of Nebraska - Lincoln

Document Type

Thesis

Date of this Version

1-1968

Citation

Thesis (M.S.)--University of Nebraska--Lincoln, 1968. Department of Agronomy.

Comments

Copyright 1968, the author. Used by permission.

Abstract

The purpose of this research activity was to determine the influence of advance in maturity and level of nitrogen fertilization on the accumulation of nitrogenous materials in the above-ground and below-ground portions of Sorghum vulgar var. Sudanese.

Successive sampling from the 5^th to 16^th week after emergence revealed a general decrease in the nitrogen concentration of the above-ground and below-ground plant parts. Nitrogen accumulation increased from the 5^th to the 12^th week for above-ground part and from the 5^th to the 13^th week for below-ground parts. In both instances, a decrease followed the maximum accumulation. No evidence of translocation from the shoots to the roots was observed. This is in contrast to the physiological activity generally recognized in perennial plants.

Advisor: Donald F. Buralaff