In breeding for plant disease resistance programs, a large number of new improved genotypes are tested over a range of test pathogens or environments and the underlying statistics used to model this system may be rather complicated. Due to ordinal nature of most measured traits of disease responses, some nonparametric methods used for analyzing genotype × environment (GE) interaction in two dat...

This study shows the effect of soil structure, soil texture and different types of nutrients on the growth of Ammi visnaga (L.) Lam, as well as the yield of the fruit crop and its content of the main active principals (ɣpyrones). The study was carried out in several localities in Two Arabian countries in North Africa; Egypt and Sudan. Egypt: at three localities:-1st at Mepaco Farm in Enshas El-...

Sorghum (Sorghum bicolor L. (Moench)) is the third major cereal crop in Ethiopia in terms of area and production next to tef (Eragrostis tef) and maize (Zea mays). It is the major crop in drought stressed lowland areas that cover 66% of the total arable land in the country. Yield stability is one of the setbacks facing plant breeders in developing widely adapted varieties with superior yield. T...

Identification of stable sources for breeding important agronomic traits is prerequisite providing a continuous and long-term progress in breeding. In this study, thirty-one early-maturing genotypes from soybean collection Maize Research Institute ?Zemun Polje? were evaluated across four environments (two years two locations) according to randomized complete block design with three replications...

Identification of high yielding and stable genotypes is one the main goals in all breeding programmes. Estimation hybrids often aggravated due to presence genotype x environment (GE) interaction. One ways eliminate negative effect this interaction application reliable statistical models such as AMMI model, which singles out that have positive reaction improvement production environments. This r...