Suhas P. Wani

Bio: Suhas P. Wani is an academic researcher from International Crops Research Institute for the Semi-Arid Tropics. The author has contributed to research in topics: Watershed management & Agriculture. The author has an hindex of 38, co-authored 284 publications receiving 6222 citations. Previous affiliations of Suhas P. Wani include Crops Research Institute.

Plant-growth-promoting rhizobacteria: drought stress alleviators to ameliorate crop production in drylands

Abstract: Drylands are known for being a drought stressed environment, which is an alarming constraint to crop productivity. To rescue plant growth in such stressful conditions, plant-growth-promoting rhizobacteria (PGPR) are a bulwark against drought stress and imperilled sustainability of agriculture in drylands. PGPR mitigates the impact of drought stress on plants through a process called rhizobacterial-induced drought endurance and resilience (RIDER), which includes physiological and biochemical changes. Various RIDER mechanisms include modification in phytohormonal levels, antioxidant defense, bacterial exopolysaccharides (EPS), and those associated with metabolic adjustments encompass accumulation of several compatible organic solutes like sugars, amino acids and polyamines. Production of heat-shock proteins (HSPs), dehydrins and volatile organic compounds (VOCs) also plays significant role in the acquisition of drought tolerance. Selection, screening and application of drought-stress-tolerant PGPRs to crops can help to overcome productivity limits in drylands.

Improved management of Vertisols in the semiarid tropics for increased productivity and soil carbon sequestration

Abstract: This study was undertaken to test the hypothesis that an improved system of catchment management in combination with appropriate cropping practices can sustain increased crop production and improve soil quality of Vertisols, compared with prevailing traditional farming practices Initiated in 1976, the improved system consisted of integrated land management to conserve soil and water, with excess rainwater being removed in a controlled manner This was combined with improved crop rotation (legume based) and integrated nutrient management In the traditional system, sorghum or chickpea was grown in the post-rainy season with organic fertilizers, and in the rainy season the field was maintained as a cultivated fallow The average grain yield of the improved system over 24 years was 47 t ha−1 yr−1, nearly a five-fold increase over the traditional system (about 1 t ha−1 yr−1) There was also evidence of increased organic C, total N and P, available N, P and K, microbial biomass C and N in the soil of the improved system A positive relationship between soil available P and soil organic C suggested that application of P to Vertisols increased carbon sequestration by 74 t C ha−1 and, in turn, the productivity of the legume-based system, thus ultimately enhancing soil quality

Climate Change 2007: The Physical Science Basis.

Abstract: Cause, conseguenze e strategie di mitigazione Proponiamo il primo di una serie di articoli in cui affronteremo l’attuale problema dei mutamenti climatici. Presentiamo il documento redatto, votato e pubblicato dall’Ipcc - Comitato intergovernativo sui cambiamenti climatici - che illustra la sintesi delle ricerche svolte su questo tema rilevante.

Climate change 2014 - Mitigation of climate change

Abstract: The talk with present the key results of the IPCC Working Group III 5th assessment report. Concluding four years of intense scientific collaboration by hundreds of authors from around the world, the report responds to the request of the world's governments for a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change. The report has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.