Three high marsh communities on the Chesapeake Bay were exposed to a doubling in ambient CO2 concentration for one growing season Open-top chambers were used to raise CO2 concentrations ca 340 ppm above ambient over monospecific communities of Scirpus olneyi (C3) and Spartina patens (C4), and a mixed community of S olneyi, S patens, and Distichlis spicata (C4) Plant growth and senescence were monitored by serial, nondestructive censuses Elevated CO2 resulted in increased shoot densities and delayed sensecence in the C3 species This resulted in an increase in primary productivity in S olneyi growing in both the pure and mixed communities There was no effect of CO2 on growth in the C4 species These results demonstrate that elevated atmospheric CO2 can cause increased aboveground production in a mature, unmanaged ecosystem

Growth and senescence in plant communities exposed to elevated CO2 concentrations on an estuarine marsh.

Cessation of tillering in spring wheat in relation to light interception and red : far-red ratio.

Phenology, Development, and Growth of the Wheat (Triticum Aestivum L.) Shoot Apex: A Review

Ready, steady, go! A sugar hit starts the race to shoot branching

Les resultats indiquent que la vitesse de tallage depend de la vitesse d'initiation des feuilles. Les variations liees au genotype peuvent etre prises en compte pour la selection de genotypes avec differents rythmes d'apparition des talles

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G. M. Fletcher

Papers

Growth of Tiller Buds in Barley: Effects of Shade Treatment and Mineral Nutrition

Effects of Shading the First Leaf on Growth of Barley PlantsI. Long-term Experiments

A Comparison of Main-stem and Tiller Growth in Barley; Apical Development and Leaf-unfolding Rates