Location: Plant Stress and Germplasm Development Research
Project Number: 3096-21000-024-002-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Sep 1, 2023
End Date: Sep 30, 2025
Objective:
1. To determine variation in carbon partitioning of main organs (rhizosphere and aerial) of sorghum germplasm with variant msd1/msd2 allele in several genetic backgrounds during early and conventional planting dates and under limited irrigation.
2. To evaluate developmental pattern of source/sink development of sorghum germplasm with variant msd1/msd2 allele in several genetic backgrounds at during early and conventional planting dates and under limited irrigation.
3. To analyze and integrate source sink data and C partitioning for sorghum germplasm with variant msd1/msd2 allele in several genetic backgrounds at two splanting dates and at limited irrigation.
Approach:
1.Cultivation of 12 sorghum entries (including isogenic lines) and parents in 15’ X 40” plots at ARS field station, double rows. The experiments will be set up using augmented design.
2. The entries will planted at two planting dates; and subjected to two irrigation levels.
3. Sampling for biomass and carbon partitioning to various plant organs will be conducted at three developmental phases under each level of irrigation.
4. Analyses of carbon and major metabolomic components will be performed though TTU CBG center.
5. Developmental pattern of sink -grain development will be evaluated at four- five time points during reproductive phase.
5. Five to ten panicles will be bagged per entry for yield evaluation at reproductive phase.
6. Joint analyses of data and drafting of reports will pursued.
