HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (5) Citing Articles via Google Scholar Google Scholar Articles by Slaton, N. A. Articles by Gbur, E. E. Search for Related Content PubMed Articles by Slaton, N. A. Articles by Gbur, E. E., Jr. Agricola Articles by Slaton, N. A. Articles by Gbur, E. E. Related Collections Rice Crop Growth and Development Other Crop Management Best Management Practices Plant and Environment Interactions

PRODUCTION PAPERS

Seeding Date Effect on Rice Grain Yields in Arkansas and Louisiana

^a Dep. of Crop, Soil and Environmental Sciences, 1366 W. Altheimer Drive, Fayetteville, AR 72704
^b Rice Res. Stn., Louisiana Agric. Exp. Stn., LSU Agricultural Center, P.O. Box 1429, Crowley, LA 70527
^c Dep. of Crop, Soil and Environmental Sciences, 115 Plant Science Building, Fayetteville, AR 72701
^d Agricultural Statistics Laboratory, University of Arkansas, Fayetteville, AR 72701

* Corresponding author (nslaton{at}uark.edu)

Received for publication March 12, 2002. Seeding date has a substantial influence on rice (Oryza sativa L.) grain yield. Previous studies, across the Midsouth rice producing area in the USA, have shown that rice grain yields decrease as the date of seeding is delayed. However, information quantifying the rate of yield decline has not been developed. The primary objective of this research was to determine the influence of seeding date on rice grain yield for two geographical areas in the USA. Yield data from Stuttgart, AR, and Crowley, LA, were compared for studies conducted in the 1990s with modern cultivars and from the 1960s and 1970s with older cultivars. Modern rice cultivars produced maximum grain yields when seeded from 16 February through 28 March at Crowley, LA, and 29 March through 26 April at Stuttgart, AR. Older cultivars grown in the 1960s and early 1970s showed similar, but slightly later optimum seeding dates. Quadratic equations best described the relationship between seeding date and relative grain yield by location and era. The rate of yield decline was the same in both Arkansas and Louisiana and for each era evaluated. The average daily high and low air temperatures for the predicted optimum seeding dates are 20 and 8°C at Crowley, LA, and 24 and 11°C at Stuttgart, AR. Rice seeded during the optimum period has a longer vegetative growth phase than later seeded rice. The relationship between seeding date and rice grain yield will aid growers in making crop planting decisions based on expected grain yields and commodity prices.

Abbreviations: IE, internode elongation • LSU-CRRS, Louisiana State University Crowley Rice Research Station • RY, relative yield • UA-RREC, University of Arkansas Rice Research and Extension Center

This article has been cited by other articles:

				X. Y. Sha and S. D. Linscombe Planting Date Affects Grain and Milling Yields of Water-Seeded Clearfield Rice Agron. J., June 26, 2007; 99(4): 1143 - 1150. [Abstract] [Full Text] [PDF]

				N. A. Slaton, R. E. DeLong, R. J. Norman, R. D. Cartwright, and C. E. Wilson Jr. Cultivar and Seeding Date Effects on Kernel Smut of Rice Agron. J., March 12, 2007; 99(2): 521 - 529. [Abstract] [Full Text] [PDF]

				J. A. Bond, T. W. Walker, P. K. Bollich, C. H. Koger, and P. Gerard Seeding Rates for Stale Seedbed Rice Production in the Midsouthern United States Agron. J., October 19, 2005; 97(6): 1560 - 1563. [Abstract] [Full Text] [PDF]