Agronomy Journal
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Agron J 99:1668-1674 (2007)
DOI: 10.2134/agronj2006.0044n
© 2007 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mahan, J. R.
Right arrow Articles by Gitz, D. C.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Mahan, J. R.
Right arrow Articles by Gitz, D. C., III
Agricola
Right arrow Articles by Mahan, J. R.
Right arrow Articles by Gitz, D. C.
Related Collections
Right arrow Temperature Stress
Right arrow Seed Establishment

A Dynamic Model of Cotton Emergence Based on the Thermal Dependence of Malate Synthase

James R. Mahan* and Dennis C. Gitz, III

USDA-ARS, Plant Stress and Water Conservation Lab., 3810 4th St., Lubbock, TX 79415


Figure 1
View larger version (11K):
[in this window]
[in a new window]

  		Fig. 1. The thermal dependence of malate synthase velocity predicted from thermal dependencies of apparent Km and maximal velocity. Substrate concentration for velocity prediction was equal to minimum observed apparent Km (substrate was not saturating). Figure modified from Mahan (2000).

 

Figure 2
View larger version (36K):
[in this window]
[in a new window]

  		Fig. 2. Inputs (soil temperatures), Predicted time developing seedlings spend at suboptimal, optimal, or supraoptimal temperatures, and the modeled emergence time from planting. (A) Pattern of soil temperature at 5-cm depth for the period DOY 115 through DOY 180. Red, green, and blue backgrounds indicate temperatures defined as supraoptimal, optimal, and suboptimal temperatures, respectively. Black bars show potential planting periods A, B, C, and D used in analysis. (B) Distribution of temperature regimes experienced by developing cotton seedlings from planting to predicted emergence. (C) Predicted time from planting to emergence for cotton as determined from the malate synthase based model (MaGi), compared to a model based on accumulated heat units (DD60).

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 2007 by the American Society of Agronomy.