Date of Award

2017

Publisher

North Dakota State University

Document Type

Thesis

Degree Awarded

Master of Science (MS)

Program

Soil Science

Department

Soil Science

College

Agriculture, Food Systems, and Natural Resources

Faculty Advisor

Goos, R. Jay

Description

Phosphorus (P) is a common macronutrient required for hard red spring (HRS) wheat (Triticum aestivum L.) growth and yield expression, and is a significant expense for farmers. The objective of this study was to screen 89 cultivars of historical, current, and pending HRS wheat genotypes for relative P requirement. The cultivars were grown in a greenhouse over two years, using four rates of sodium phosphate for a rate response to the fertilizer. The genotypes were assessed using the Klepper-Haun technique for Haun stage and tiller initiation, and the plant material was analyzed for total P. It was found that as P rate increased, so did dry matter production, Haun stage, tiller initiation, P concentration, and P uptake. Significant cultivar and P*cultivar interactions were observed and regression analysis indicated that rapidly developing cultivars tillered less and required more P fertilizer for initiation of T1 + T2 tillers than slowly developing cultivars.

Rights

NDSU policy 190.6.2

Rights Link

https://www.ndsu.edu/fileadmin/policy/190.pdf

Author ORCID Identifier

0000-0001-6712-2422

Handle Identifier

https://hdl.handle.net/10365/28685

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