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The limits of crop productivity: validating theoretical estimates and determining the factors that limit crop yields in optimal environmentsPlant scientists have sought to maximize the yield of food crops since the beginning of agriculture. There are numerous reports of record food and biomass yields (per unit area) in all major crop plants, but many of the record yield reports are in error because they exceed the maximal theoretical rates of the component processes. In this article, we review the component processes that govern yield limits and describe how each process can be individually measured. This procedure has helped us validate theoretical estimates and determine what factors limit yields in optimal environments.
Document ID
20040112104
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
Bugbee, B.
(and Biometeorology Department at Utah State University Logan 84322-4820)
Monje, O.
Date Acquired
August 21, 2013
Publication Date
July 1, 1992
Publication Information
Publication: Bioscience
Volume: 42
Issue: 7
ISSN: 0006-3568
Subject Category
Man/System Technology And Life Support
Funding Number(s)
CONTRACT_GRANT: NCC2-139
Distribution Limits
Public
Copyright
Other
Keywords
NASA Program CELSS
Review
Review, Tutorial
NASA Discipline Life Support Systems
NASA Discipline Number 61-10
Non-NASA Center

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