using haploid technique in breeding of sugar beet as an allogamous plant will facilitate breeding efforts. in this method,a pure line with a desirable genotype can be achieved by unfertilized ovule culture. therefore ovule culture was done from populations with numbers: 27621, 27624, 27626 and 27629. young flowering stems were collected and ovules were isolated from the flower buds after steril...

Abstract One of the biotic constraints in rice production worldwide is blast disease which can control by planting resistant varieties. To find out effective resistance, resistance quantitative trait loci (QTL) were mapped against 20 and 3 virulent isolates for leaf neck blast, respectively, using 111 doubled haploid lines from cross IR64 Azucena. QTLs associated with found on chromosomes 1, 2,...

The current and projected climate change that is represented by increasing temperatures humidity levels irregular rainfall patterns promotes the occurrence of preharvest sprouting (PHS) in wheat. PHS results significant economic losses, globally, which necessitates need for high-yielding cultivars with increased tolerance; hence, this study was conducted. evaluated two doubled-haploid (DH) whea...