The essential oil yield stability of damask rose (Rosa damascena Mill.) as an important medicinal and aromatic plant in different environments has not been well documented. In order to determine appropriate stability parameters, six statistics were studied for essential oil stability of 35 Rosa damascena landraces in seven locations (Sanandaj, Arak, Kashan, Dezful, Stahban, Ke...

study of genotype by environment interaction (gei) has assumed great importance in genotype testing programs due to yield performance of a genotype is a result of interaction between genotype and environment. gei occurs when the performance of the genotypes is not consistent from one environment to another. therefor, 17 barley genotypes with three check cultivars (wa 2196-68/ny6005-18,f1//scoti...

The objectives of this study were to compare nonparametric stability measures, and to identify promising high-yield and stable bread wheat (Triticum aestivum L.) genotypes in 7 environments during 2003-2005 in the central Black Sea region of Turkey. The bread wheat genotypes (20 advanced lines and 5 cultivars) were grown in a randomized complete block design with 4 replications in 7 different e...

this research was conducted to investigate genotyp×environment interaction for grain yield of ten wheat cultivars in 8 environments (combinations of two nitrogen fertilizer treatment and four irrigation regimes). analysis of additive main effects (analysis of variance) and multiplicative interaction effects (principal component analysis) revealed that the effects of genotype, environment and ge...

uniparametric, non-parametric methods and ammi model (additive main effects and multiplicative interaction) were used to evaluate the yield stability of ten cotton cultivars at six regions of golestan and mazandaran provinces (baye kola, gharakheil, kalaleh, khan bebein, karkandeh, hashem abad) during two successive years ( 2005 & 2006). the experiment was conducted in randomized complete block...

common bacterial blight (cbb) caused by xanthomonas axonopodis pv. phaseoli is a serious disease of bean fields in iran and the world. chemical control of cbb is inefficient, therefore the use of resistant genotypes with stability production is the most suitable alternative. stability and adaptability of 26 bean genotypes yield in the presence and absence of cbb were evaluated in agricultural r...

a breeding hexaploid salt tolerant wheat line (ms-81-14) was produced from crossing of an iranian salt tolerant wheat line (1-66-22) with inia cultivar (from cimmyt) at karaj research station in 1991-92 cropping season. the f1 plants were grown at karaj in 1992-93 cropping season, furthermore f2-f6 populations were evaluated under salinity stress conditions (ecsoil&water; = 8-12 ds/m) in isfaha...

Wheat (Triticum aestivum L.) variety mixtures represent a relatively unexplored avenue for maintaining yield and improving flour quality. A field experiment was conducted to examine the responses of three spring wheat varieties in pure variety and in variety mixtures under continuous cropping in Northeast China. Three modern spring wheat varieties, along with a three-variety mixture and a t...