Cadmium (Cd) is one of the most toxic heavy metals and is difficult to be removed from contaminated soil and water. Italian ryegrass (Lolium multiflorum), as an energy crop, exhibits a valuable potential to develop Cd polluted sites due to its use as a biofuel rather than as food and forage. Previously, via a screening for Cd-tolerant ryegrass, the two most extreme cultivars (IdyII and Harukaze...

The last century has witnessed a substantial improvement in yield potential, quality and disease resistance in crops. This was indeed the outcome of conventional breeding, which was achieved with little or no knowledge of underlying physiological and biochemical phenomena related to a trait. Also the resources utilized on programs involving conventional breeding were not of great magnitude. Pla...

The amount of proteins soluble upon boiling (especially WCS120 proteins) and the ability to develop frost tolerance (FT) after cold acclimation was studied in two frost-tolerant winter wheat cultivars, Mironovskaya 808 and Bezostaya 1. Protein gel blot analysis, mass spectrometry (MS) and image analysis of two-dimensional gel electrophoresis (2-DE) gels were used to identify and/or quantify the...

Alfalfa (Medicago sativa L.) persistence and forage and cow-calf production were evaluated on pastures containing smooth bromegrass with or without grazing-tolerant or hay-type alfalfa cultivars rotationally stocked in either a season-long or complementary system. In 1997, six 2.02-ha pastures were seeded with smooth bromegrass, a mixture of a grazing-tolerant alfalfa (Amerigraze variety) and s...

Drought stress induced pollen sterility is a detrimental factor reducing grain number in wheat. Exploring the mechanisms underlying pollen fertility under drought conditions could assist breeding high-yielding wheat cultivars with stress tolerance. Here, by using two Chinese wheat cultivars subjected to different levels of polyethylene glycol (PEG)-induced drought stress, possible links between...

Although flooding is one of the most important environmental stresses worldwide, not all plant species are intolerant to its effects. Species from semi-aquatic environments, such as rice, have the capacity to cope with flooding stress. Heat-shock proteins (Hsps) are thought to contribute to cellular homeostasis under both optimal and adverse growth conditions. Studies of gene expression in plan...

Temperature is the dominant environmental factor affecting cotton development and yield. Chilling temperatures can significantly reduce cotton yield. The ability to screen cotton for cold tolerance can lead to the development of cultivars that can maintain yield and quality in marginal cotton growing regions where exposure to chilling stress is more common. This study tests the hypothesis that ...

in this study, the winter cold tolerance of seven strawberry cultivars was evaluated using a rcbd design with a split plot arrangement at bu-ali sina university in 2014. after exposure of plants to low temperatures (+4, -5, -10, -15, -20 and -25oc), the values of electrolyte leakage, index of freeze injury, rwc, total chlorophyll and chlorophyll fluorescence parameters (f0, fm, fv and fv/fm) we...

Meiosis is the least explored stage for thermotolerance in wheat. We evaluated impact of 5 d moderate transient daily heat stress during meiosis main stem spike on physiological and grain yield traits 30 diverse wheat cultivars which vary widely tolerance sensitivity. found that a event had lasting impacts plant growth reproduction heat-sensitive, but not heat-tolerant, cultivars. Heat-tolerant...