FirstPodsDeveloping

The FirstPodsDeveloping phase in Lentil represents the developmental period from FirstFlowersSet to FirstPodsVisiable. This phase covers early pod development following successful flower set.

Overview

The GenericPhase model simulates the pod development using daily Thermal Time.

  • This phase starts at FirstFlowersSet and ends at FirstPodsVisiable
  • The model uses daily thermal time, retrieved from the [Phenology].ThermalTime function
  • Pod size increases and becomes visible
  • Pollination and fertilization have occurred
  • Pod wall development proceeds to make structures visible

Pod Development Characteristics

During this phase:

  • Successful flowers transition to developing pods
  • Pod wall expands and becomes visible
  • Seed number in developing pods is established
  • Continued flowering occurs at upper nodes
  • Lower pods are larger and more advanced than upper pods

Cultivar-Specific Parameters

Cultivar-specific parameters that influence pod development:

Name Description Default Value
[Phenology].MinFloralNodes Minimum number of nodes bearing flowers 8
[Phenology].MaxFloralNodes Maximum number of nodes bearing flowers 15

Practical Considerations

Factors affecting pod development:

  1. Temperature: Controls rate of pod expansion and development
  2. Water availability: Insufficient water leads to pod abortion and reduced set
  3. Radiation: Photosynthetically active radiation supports pod development
  4. Nutrient status: Nitrogen availability affects pod setting and development

The model simulates pod development as a temperature-dependent process, with environmental stress mechanisms affecting pod retention and viability.