Source–Sink Relationships in Cereals and Legumes
- Critical period
Correspond to the time lapse during the crop cycle in which grain number per square meter is highly sensitive to environmental conditions.
- Crop development
The sequence of processes and events involved in producing new organs throughout the crop cycle of a crop.
- Grain filling period
Time lapse of grain growth from flowering to physiological maturity.
- Source–sink relationship
Refers to the balance between the assimilate production in photosynthesis and the assimilate utilization for grain yield of crops.
Definition of the Subject
Cereals and grain legume crops are widely sown along the world and their importance as a source of feed and food is indisputable mainly as a source of carbohydrates and proteins, respectively. Grain yield of these crops can be defined as the product of grain number per unit area and the average grain weight. Source-sink manipulations, in cereals, have shown the critical period for grain number determination occurs mainly at the...
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