Stripe (yellow) rust disease caused by Puccinia striifarmis f. sp. tritici, is a catastrophic wheat in wheat-growing regions around the world. The objective of this study was to investigate potential sources stripe resistance and yield loss forty local varieties at four locations Egypt (Sakha, Mutubas, Qillin Biyala), under yellow pressure compared ‘Morroco’ variety, as control. To determine sl...

We prove upper and lower heat kernel bounds for the Laplacian on weighted graphs which include the case that the weights have no strictly positive lower bound. Our estimates allow for a very explicit probabilistic interpretation and can be formulated in terms of a weighted metric. Interestingly, this metric is not equivalent to the intrinsic metric. The results Heat kernel estimates are a tool ...

Genome information from model species such as rice can assist in the cloning of genes in a complex genome, such as maize. Here, we identified a maize ortholog of rice GS5 that contributes to kernel development in maize. The genome-wide association analysis of the expression levels of ZmGS5, and 15 of its 26 paralogs, identified a trans-regulator on chromosome 7, which was a BAK1-like gene. This...

In order to increase gross harvest and productivity of rice, the development new varieties their timely use in production is great importance. The Federal Research Center Rice Agricultural “Donskoy” regularly develop more productive with improved resistance diseases other factors. Each variety forms a specific response various agro-ecological conditions, which affects productivity, main indicat...

Cereal Chem. 86(2):239–246 Test weight and groat proportion are two very important quality characteristics of oat grain. In this study, we pose the hypothesis that these two characteristics are related through characteristics of grain density. Test weight is defined as the product of kernel density and packing proportion. Groat proportion, in theory, is the ratio of the groat mass to the kernel...