Hamidou, F and Bissala, H Y and Awel, M S and Upadhyaya, H D (2016) Abiotic Stresses Tolerance and Nutrients Contents in Groundnut, Pearl Millet and Sorghum Mini Core Collections for Food and Nutrition Security. In: 1st International Agrobiodiversity Congress, November 06-09, 2016, New Delhi, India.
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Abstract
Food and nutrition security still require new sources of tolerance to major abiotic stresses and high nutritional quality. Groundnut, pearl millet and sorghum mini core collections are representing diversity of global collections but few studies investigated the nutrients contents and the tolerance to low phosphorus (LP) and drought stress (WS). Under lysimetre and pots conditions, subsets of these mini core collections were used to assess genotypic variation in nutrients contents and identify new sources of tolerance to WS and LP. In a randomized completely block design with 5 replications, water regimes and phosphorus treatments were imposed. Agromorphological and nutrients contents parameters were investigated. ANOVA were performed to assess the genotype and treatments effects. WS decreased the transpiration efficiency (47%), yield and its components (68%) in groundnut. Combined WS-LP reduced pods weight (83%). ICG3312, ICG81, ICG13395 and ICG467 revealed tolerant to WS/LP. In Pearl millet, LP decreased 100 seeds weight (14%), panicle and shoot biomass weight (25%), the booting date delayed except on IP1060, IP5869, IP9000, IP17532 and IP17775. WS-LP decreased total biomass (35%) while LP reduced total N(4.5%), P(20%), K(23%), Fe(25%) and Zn(3%). IP17532, IP 5153 and IP 5581 revealed highest Fe content (524mgkg-1). In sorghum, LP delayed the booting date, decreased biomass (32%) and WS-LP reduced biomass (74%). ISS2151, ISS705 and ISS862 revealed tolerant to WS-LP. LP decreased total N(11%), P(32%), K(13%), Fe(13%) and Zn(11%). IS1412, IS311 and IS376 showed high Fe content (515mgKg-1). Selected genotypes and traits might be useful in crops improvement for more adaptation and productivity.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | Research Program : Genetic Gains Research Program : West & Central Africa |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Mini core collections, Drought stress tolerance, Low phosphorus, Nutrients contents, Crop improvement, Abiotic Stress, Stress Tolerance, Groundnut, Pearl Millet, Sorghum, Food and Nutrition Security |
| Subjects: | Mandate crops > Millets > Pearl Millet Mandate crops > Groundnut Mandate crops > Sorghum Others > Food and Nutrition Others > Food Security |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 21 Nov 2017 10:55 |
| Last Modified: | 21 Nov 2017 10:55 |
| URI: | http://oar.icrisat.org/id/eprint/10299 |
| Acknowledgement: | UNSPECIFIED |
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