Durum wheat is the most widely grown cereal in Tunisia, but its production threatened by drought, which exacerbated climate change. This study aimed to identify drought-tolerant durum genotypes from five modern varieties and six landraces a multi-environment trial at two sites (Kef Siliana, Tunisia) during three growing seasons under rainfed irrigated conditions. Six drought tolerance indices (...

Drought has an impact on many aspects of society. To help decision makers reduce the impacts of drought, it is important to improve our understanding of the characteristics and relationships of atmospheric and oceanic parameters that cause drought. In this study, the use of data mining techniques is introduced to find associations between drought and several oceanic and climatic indices that co...

Drought is one of the main factors affecting rice productivity. Aromatic Rice varieties differ in their ability to withstand drought while keeping characteristic fragrance. Considering that 70% of the water used by humankind is directed to irrigate crops, tolerance to water scarcity is also a key issue for agricultural sustainability. The understanding on the mechanisms underlying drought toler...

Different drought indices often provide different diagnoses of drought severity, making it difficult to determine the best way to evaluate these different drought monitoring results. Additionally, the ability of a newly proposed drought index, the Process-based Accumulated Drought Index (PADI) has not yet been tested in United States. In this study, we quantified the severity of 2012 drought wh...

The variability in acid phosphatase activities was studied with an objective to find out its physiological role in response to drought stress. The effect of drought stress on acid P-ase activity in relationship with phosphorus was studied in drought tolerant (C-306) and drought sensitive (HD-2004) cultivars of wheat. Drought stress was imposed by withholding water irrigation to the growing seed...

to evaluate the effects of water deficit stress in barley germplasm collection of national gene bank ofiran, 25 genotypes collected from arid and semi arid provinces of iran and 3 sample cultivars werestudied in two environments including: non-stressed and water deficit stress. agronomical, phenologicaland morphological traits were measured. stress indices were calculated to determine tolerant ...

Advances have been made in the development of drought-tolerant transgenic plants, including cereals. Rice, one of the most important cereals, is considered to be a critical target for improving drought tolerance, as present-day rice cultivation requires large quantities of water and as drought-tolerant rice plants should be able to grow in small amounts of water. Numerous transgenic rice plants...

Effective identification and understanding of genes contribute to improve plant drought resistance. A study was conducted to identify drought responsive candidate genes in sugarcane. Two genes viz., SOD (Superoxide dismutase) and IGS (Indole 3glycerol phosphate synthase) were used as gene specific markers. Specific primers were designed based on the sequences in Genbank databases. Mapping popul...

Considerable uncertainty surrounds the impacts of anthropogenic climate change on the composition and structure of Amazon forests. Building upon results from two large-scale ecosystem drought experiments in the eastern Brazilian Amazon that observed increases in mortality rates among some tree species but not others, in this study we investigate the physiological traits underpinning these diffe...