Rice Plant to Photoperiod
A REVIEW OF THE LITERATURE
Los Banos, Laguna, Philippines
Mail Address: P. O. Box 933, Manila, Philippines
THE INTERNATIONAL RICE RESEARCH INSTITUTE
First printing 1969
Partially revised 1972
The International Rice Research Institute (IRRI) was established in 1960 by the Ford and Rockfeller Foundations with the help and approval of the Government of the Philippines. Today IRRI is one of the 13 nonprofit international research and training centers supported by the Consultative Group for International Agricultural Research (CGIAR). The CGIAR is sponsored by the Food and Agriculture Organization (FAO) of the United Nations, the International Bank for Reconstruction and Development (World Bank), and the United Nations Development Programme (UNDP). The CGIAR consists of 50 donor countries, international and regional organizations, and private foundations.
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Copyright @ International Rice Research Institute 1986
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Rice as a Short-day Plant 1
Growth Phases 2
Basic Vegetative Phase 4
Photoperiod-Sensitive Phase 5
Photoinductive Cycles 7
Reception of the Photoperiodic Stimulus and Translocation 9
Light Intensity and Quality 9
Interruption of the Dark Period 11
Days from Photoinductive Treatment to Flowering 12
Biochemical Changes During Photoinduction 12
Effect of Temperature on the Flowering Response to Photoperiod 13 Measurements and Methods of Testing Photoperiod Sensitivity 14 Date-of-Planting Experiments 15
Ecology and Photoperiodism 17
Terminology Used in Describing Photoperiod Sensitivity 20
Inheritance of Vegetative Growth Duration 23
Problems in the Study of the Rice Plantfs Photoperiodism 25 Summary 26
This review, first published in 1969, has been an important reference in understanding the rice plant. It has had a small but continuing demand. Many new reports on the flowering response of the rice plant have been published since the first edition. More than 100 publications were included in the third edition; this edition includes another 103 publications. For ease of reading, numbers have been used to cite the references.