The impact of cultivar development and cultural practices on Louisiana rice yield

被引：3

作者：

Kennedy, P. Lynn ^{[1
]}

Schmitz, Andrew ^{[2
]}

Linscombe, Steve ^{[3
]}

Zhang, Fangyi ^{[4
]}

机构：

[1] Louisiana State Univ, Agr Ctr, Dept Agr Econ & Agribusiness, 105 Martin D Woodin Hall, Baton Rouge, LA 70803 USA

[2] Univ Florida, Food & Resource Econ Dept, 1130-B McCarty Hall, Gainesville, FL 32611 USA

[3] Louisiana State Univ, Agr Ctr, H Rouse Caffey Rice Res Stn, 1373 Caffey Rd, Rayne, LA 70578 USA

[4] Univ Guelph, Dept Food & Resource Econ, 50 Stone Rd East, Guleph, ON N1G 2W1, Canada

来源：

AGROSYSTEMS GEOSCIENCES & ENVIRONMENT | 2022年 / 5卷 / 01期

关键词：

REGISTRATION;

D O I：

10.1002/agg2.20231

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

This analysis investigates the impact of cultivar development and cultural practices on Louisiana rice (Oryza sativa L.) yield growth using the Chow test (Chow, 1960) in combination with regression analysis. The analysis examines the 1895-2019 period, and uses four scenarios in which one, two, three, and four subperiods show varying rates of rice yield growth in Louisiana. There has been a significant increase in Louisiana rice yields over time. However, the growth in yields for some of the subperiods is greater than for others. Our results of significant rice yield increase over time correspond with events such as the establishment of Louisiana's Foundation Seed Program, the release of the Magnolia rice cultivar, and increased mechanization.

引用

页数：11

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