Global seed maize project

Overview

Global seeds is a local Malawian seed company. Recently, it has acquire some inbred line from Zimbabwe and this is being multiplied. Here we are trying to understand the performance of the line in Malawi (Blantyre area) under irrigation. There are 2 generations of this line, 1 and 2. There two sites within Blantyre planted with this line.

Between the 2 sites one site will be have both two generations and the other site will have one generation. At one site both 2 generation of the lines will be planted while the other site will only be planted with 1 generation. Data collection will start 3 weeks after planting at 3 weeks interval until maturity

Protocols

The One v3.0 (Phi2, NPQt, using Multi-Phase Flash)

The One Protocol to rule them all! Phi2, NPQt combined.

Changes from previous The One protocol: - Removed the Phi1 measurement, which was producing a lot of invalid data (removed by Dan and Frank) - Implemented the multi-phase flash protocol created by Tom Avenson

Chlorophyll content (SPAD) III

REQUIREMENTS: Firmware v0.41 or higher. Measures transmission at 940nm and 650nm in order to determine the 'greenness' of a leaf, an indicator of chlorophyll content and nitrogen content. The 940 is used to account for leaf thickness. Improvements over Chlorophyll content (SPAD): - performs 3 different spads at 3 intensities for thin and thick leaves - auto-chooses appropriate intensity - is calibrated to a Minolta SPAD device from factory.

Improvements over previous version -

  • Compatible with firmware v0.41 or higher.

Questions

  1. Site (Multiple Choice)
  2. Generation (Multiple Choice)
  3. Block (Multiple Choice)
  4. weeks after planting (Short Answer)
  5. leaf position (Multiple Choice)
  6. distance from water source (Multiple Choice)

Locations

Discussions

Team

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