to determine rice yield loss resulting from blast disease (magnaporthe grisea) at the corp's different growth stages, a field experiment was conducted at the rice research institute of iran, rasht. rice local cultivar hashemi was transplanted to 3×4m plots for the experimental treatments (time of disease evaluation) each treatment was replicated 4 times. under natural infection conditions,...

Many varieties of wheat (Triticum spp.) and barley (Hordeum vulgare L.) require prolonged exposure to cold during winter in order to flower (vernalization). In these cereals, vernalization-induced flowering is controlled by the VERNALIZATION1 (VRN1) gene. VRN1 is a promoter of flowering that is activated by low temperatures. VRN1 transcript levels increase graduallyduringvernalization,with long...

The timing of the floral transition in Arabidopsis (Arabidopsis thaliana) is influenced by a number of environmental signals. Here, we have focused on acceleration of flowering in response to vegetative shade, a condition that is perceived as a decrease in the ratio of red to far-red radiation. We have investigated the contributions of several known flowering-time pathways to this acceleration....

An experiment was carried out to study the correlation and path analysis in 40 buckwheat genotypes during Rabi, 2021-2022 at Department of Genetics Plant Breeding, SHIATS, Allahabad Randomized BlºCk Design with three replications analyze Analysis. Analysis variance showed significant difference for seed yield its components indicating presence large amount variability genotypes. The magnitude G...

This study was conducted to examine the effects of Salicylic acid (SA) and Potassium nitrate (KNO3) on plant height flowering time groundnut (Arachis hypogaea L.) under induced stresses salinity, drought combined salinity drought. Three watering regimes namely; normal, moderate severe were used. For stress, 50 mM NaCl, 100 150 NaCl combination water ?m KNO3 SA separately applied plants water, s...

Latitudinal variation in climate is predicted to select for latitudinal differentiation in sensitivity to the environmental cues that signal plants to flower at the appropriate time for a given climate. In Arabidopsis thaliana, flowering is promoted by exposure to cold temperatures (vernalization), and several vernalization pathway loci are known. To test whether natural variation in vernalizat...

Understanding the genetic basis of natural phenotypic variation is of great importance, particularly since selection can act on this variation to cause evolution. We examined expression and allelic variation in candidate flowering time loci in Brassica rapa plants derived from a natural population and showing a broad range in the timing of first flowering. The loci of interest were orthologs of...