Screening of five Bambara groundnut varieties for drought tolerance
Drought is a major constraint to crop production in the North-sudanian and Sahelian zone in Burkina Faso. To improve the production of Bambara groundnut in the dry areas it is very important to identify high-performance varieties capable to be tolerant to the water deficit.
This project aims to screen five Bambara groundnut varieties for drought tolerance:
(i) Determine the effect of drought on the flowering date
(ii) Determine the effect of drought on the biomass
(iii) Identify the varieties with high yield potential facing drought
A total of three experiments will be arranged in a completely randomized design with four replications. The experiments will have three water levels every three days; T1: non-water-stressed; T2: water-slightly-stressed and T3: water-stressed.
T 1 will be watered with 1 L T 2 will be watered with 0.75 L
T 3 will be watered with 0.5 L Irrigation will be done in the three experiments during 10 days after planting to allow the emergency of young shoot. Then, irrigation will be done up to near physiological maturity. Data will be subjected to analysis to detect the statistical differences between the three water treatments as well as between the five varieties. The following photosynthesis-related parameters will be measured during the development of the plants: Chlorophll Fluorescence: Phi2, PhiNPQ, PhiNO, NPQt, qL, LEF Relative Chlorophyll: SPAD Proton Motive Force: ECSt, vH+, gH+ Absorbance at: 450, 535, 605, 650, 730, 850, 880, and 940nm. Leaf Thickness (in mm), angle, and cardinal direction Leaf Temperature and differential from ambient temperature Environmental conditions: PAR and ambient temperature/pressure/humidity Photosynthetically active radiation Measure of leaf “greenness”: SPAD
- Leaf Photosynthesis MultispeQ V1.0
Measures many photosynthesis-related parameters in <15 seconds, including:
- Chlorophll Fluorescence: Phi2, PhiNPQ, PhiNO, NPQt, qL, LEF
- Relative Chlorophyll: SPAD
- Proton Motive Force: ECSt, vH+, gH+
- Absorbance at: 450, 535, 605, 650, 730, 850, 880, and 940nm.
- Leaf Thickness (in mm), angle, and cardinal direct...
- What is the trial number? (Multiple Choice)
- What is the block number (Multiple Choice)
- What is the variety name (Multiple Choice)