Development of winter pea lines for intercropping purposes
CSANR Project 103
The project addresses the first FY12 program area for biologically intensive and organic approaches to sustainable management of fertility and plant nutrition. The objective of the project is to identify pea lines that can be fall planted and will fix the maximum amount of nitrogen by early spring. Such lines would be suitable for intercropping with winter wheat over the winter and destruction by cultivation or herbicides to release nutrients to the developing wheat crop. The peas could also be used as a winter cover crop. The main difference between the lines under development and existing winter pea varieties will be the fact that they are selected for high N fixation as well as other traits that should enhance their utility for intercropping. We will also determine how much genotypic variation is present in winter pea lines for the ability to fix N and see if traits like early flowering and hypernodulation are associated with early spring N fixation.