Photosynthetic activity of rice sister lines with contrasting cold tolerance.

Incidence of cold during early stages is an obstacle for the growing progress of rice plants. Cold stress has strong negative effects on photosynthetic activity. Previously, our group evaluated plant survival of 90 rice genotypes after cold treatment.

Genotype Variation in Rice ( L.) Tolerance to Fe Toxicity Might Be Linked to Root Cell Wall Lignification.

Iron (Fe) is an essential element to plants, but can be harmful if accumulated to toxic concentrations. Fe toxicity can be a major nutritional disorder in rice () when cultivated under waterlogged conditions, as a result of excessive Fe solubilization of in the soil. However, little is known about the basis of Fe toxicity and tolerance at both physiological and molecular level.