Annals of Botany 81: 131-139, 1998
© 1998 Annals of Botany Company
Morphological Analysis of Leaf and Tiller Number Dynamics of Wheat (Triticum aestivumL.): Responses to Temperature and Light Intensity
CT de Wit Graduate School for Production Ecology, Department of Agronomy, Wageningen Agricultural University, Haarweg 333, 6709, RZ, Wageningen, The Netherlands
January 13, 1997 ; May 1, 1997 . September 11, 1997 .
In recent literature on Gramineae species, leaf and tiller number dynamics have been studied by analysing site filling and the phyllochron of the mainstem. However, site filling is influenced by three components: (1) the phyllochron of the mainstem and daughter tillers; (2) specific site usage (i.e. fraction of buds that ultimately develop into a visible tiller at a specific site); and (3) HS-delay (i.e. difference in Haun Stage (HS) between the parent tiller and daughter tiller above the point where the daughter tiller appears). These three morphological components affecting site filling were studied under different environmental conditions in a growth chamber experiment with spring and winter wheat (Triticum aestivumL.). Treatments were temperature (daily average 10.5, 15.5 or 20.5 °C) and light intensity (111, 191 or 286 µmol m-2s-1). Effects of temperature and light intensity on phyllochron were well described by equations already reported in the literature. Specific site usage was higher at cooler temperatures and greater light intensities and was related to tiller position. It is proposed that these effects on specific site usage reflect differences in availability of local assimilate for tiller appearance. HS-delay of a tiller was shorter if the expected tiller appearance was later and was only slightly affected by light intensity or temperature. This new concept, combining HS-delay and specific site usage, can be useful in constructing more general models of the effects of environmental factors on the dynamics of leaf number and leaf area ofGramineaespecies.Copyright 1998 Annals of Botany Company
Triticum aestivum; wheat; phyllochron; temperature; light intensity; leaf number; tillering; site filling; site usage.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  M. Kang, J. B. Evers, J. Vos, and P. de Reffye The Derivation of Sink Functions of Wheat Organs using the GREENLAB Model Ann. Bot., May 1, 2008; 101(8): 1099 - 1108. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. B. EVERS, J. VOS, B. ANDRIEU, and P. C. STRUIK Cessation of Tillering in Spring Wheat in Relation to Light Interception and Red : Far-red Ratio Ann. Bot., April 1, 2006; 97(4): 649 - 658. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. FUSTEC, J. GUILLEUX, J. LE CORFF, and J.-P. MAITRE Comparison of Early Development of Three Grasses: Lolium perenne, Agrostis stolonifera and Poa pratensis Ann. Bot., August 1, 2005; 96(2): 269 - 278. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. JAFFUEL and J. DAUZAT Synchronism of Leaf and Tiller Emergence Relative to Position and to Main Stem Development Stage in a Rice Cultivar Ann. Bot., February 1, 2005; 95(3): 401 - 412. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. A. LAFARGE, I. J. BROAD, and G. L. HAMMER Tillering in Grain Sorghum over a Wide Range of Population Densities: Identification of a Common Hierarchy for Tiller Emergence, Leaf Area Development and Fertility Ann. Bot., July 1, 2002; 90(1): 87 - 98. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. A. LAFARGE and G. L. HAMMER Tillering in Grain Sorghum over a Wide Range of Population Densities: Modelling Dynamics of Tiller Fertility Ann. Bot., July 1, 2002; 90(1): 99 - 110. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. Suter, J. Nosberger, and A. Luscher Response of Perennial Ryegrass to Free-Air CO2 Enrichment (FACE) Is Related to the Dynamics of Sward Structure during Regrowth Crop Sci., May 1, 2001; 41(3): 810 - 817. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
I. Bahmani, L. Hazard, C. Varlet-Grancher, M. Betin, G. Lemaire, C. Matthew, and E.R. Thom Differences in Tillering of Long- and Short-Leaved Perennial Ryegrass Genetic Lines under Full Light and Shade Treatments Crop Sci., July 1, 2000; 40(4): 1095 - 1102. [Abstract] [Full Text]
|
|