Publication Date
1985
Location
Kyoto Japan
Description
The tiller and tiller bud development in young seedlings of orchardgrass (Dactylis glomerata L.), tall fescue (Festuca arundinacea Schreb.), timothy (Phleum pratense L.) and reed canarygrass (Phalaris arundinacea L.)were studied anatomically. Regular appearance of successive leaves on main shoot and emerged primary tillers were observed in grasses grown under both normal (30,000 lux) and reduced (6,000 lux) light intensities. The leaves expanding simultaneously on different shoots developed analogously. These growth habits in tillering and leaf production were well supported by Katayama's concept on tillering systems in cereals such as rice plant, wheat and barley. The visible synchronization in appearance of any corresponding leaves of main shoot and emerged tillers should be the results of their simultaneous initiation and analogous development occurring at the subapical regions. The course of tiller bud development was supposed to consist of two different morphogenetic phases, i. e., the process from the initiation of tiller bud primordium to the completion of bud structure, and the rapid elongation of first leaf of just completed tiller bud. In general, the basic structure as a tiller bud was achieved immediately after the full expansion of its subtending leaf of main shoot in every grass examined. Under normal light intensity, the bud elongation began without any intermission, and concluded with leaf emergence as a tiller. This phase was strongly disturbed when plants were transferred to a reduced light condition, and the completed tiller bud could not develop further.
Citation
Ito, M; Tsubota, Y; and Nakayama, S, "Patterns of Tillering and Tiller Bud Development of Some Temperate Herbage Grasses Under Different Light Intensities" (1985). IGC Proceedings (1985-2023). 23.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/23)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Patterns of Tillering and Tiller Bud Development of Some Temperate Herbage Grasses Under Different Light Intensities
Kyoto Japan
The tiller and tiller bud development in young seedlings of orchardgrass (Dactylis glomerata L.), tall fescue (Festuca arundinacea Schreb.), timothy (Phleum pratense L.) and reed canarygrass (Phalaris arundinacea L.)were studied anatomically. Regular appearance of successive leaves on main shoot and emerged primary tillers were observed in grasses grown under both normal (30,000 lux) and reduced (6,000 lux) light intensities. The leaves expanding simultaneously on different shoots developed analogously. These growth habits in tillering and leaf production were well supported by Katayama's concept on tillering systems in cereals such as rice plant, wheat and barley. The visible synchronization in appearance of any corresponding leaves of main shoot and emerged tillers should be the results of their simultaneous initiation and analogous development occurring at the subapical regions. The course of tiller bud development was supposed to consist of two different morphogenetic phases, i. e., the process from the initiation of tiller bud primordium to the completion of bud structure, and the rapid elongation of first leaf of just completed tiller bud. In general, the basic structure as a tiller bud was achieved immediately after the full expansion of its subtending leaf of main shoot in every grass examined. Under normal light intensity, the bud elongation began without any intermission, and concluded with leaf emergence as a tiller. This phase was strongly disturbed when plants were transferred to a reduced light condition, and the completed tiller bud could not develop further.
