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Stephen F. Austin State University

Economic Analysis of Sunflower (Helianthus annuus) Spacing in East Texas

Abstract

dc:description.abstract

<p>Two experiments were conducted on spacing of <em>Helianthus annuus</em> in East Texas to determine the spacing treatment that produces the greatest revenue per m<sup>2</sup>. The experiments had four spacing treatments of 8 × 15 cm, 15 × 15 cm, 23 × 23 cm, and 30 × 30 cm. Three different cultivars were used in each experiment to determine if there was an interaction between spacing and cultivars. In both experiments, the stem height, stem diameter, flower diameter, and disk diameter increased as spacing increased. Also, as spacing increased, the days-to-harvest decreased. The 8 × 15 cm spacing produced the largest percentage of unmarketable and smaller size flowers while the 30 × 30 cm spacing produced the fewest unmarketable flowers. The net revenue declined substantially with increased spacing. Analysis of these two experiments concluded the most profitable spacing of specialty cut sunflowers grown in East Texas is 8 × 15 cm. East Texas growers should consider the quality and quantity of desired crop to determine the proper spacing of specialty cut sunflowers.</p>

Degree

thesis:*
Name thesis:degree_name
Master of Science - Agriculture
Level thesis:degree_level
Thesis
Discipline thesis:degree_discipline
Agriculture
Year dc:date.available
2022

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Wright, Carly
Contributors dc:contributor
  • Dr. Michael Maurer
  • Dr. Jared Barnes
  • Dr. Josephine Taylor

Subjects

dc:subject × 2

Identifiers

dc:identifier.*
Repository record dc:identifier
https://scholarworks.sfasu.edu/etds/450
OAI identifier oai:identifier
oai:scholarworks.sfasu.edu:etds-1485

Chain of custody

source
Harvested from
Stephen F. Austin State University
Base URL
scholarworks.sfasu.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Wright, Carly. Economic Analysis of Sunflower (Helianthus annuus) Spacing in East Texas. Thesis thesis, 2022. https://scholarworks.sfasu.edu/etds/450