Habitat factors impact on nutritional values Gundelia tournefortii L. at phenological stages in the North East of Khozestan Province

Recognition of quality value of plant at phenological stages is necessary for rangeland management. In this study was compared quality of G.tournefortii Leaf, stem and seed and in four natural regions in North East of Khozestan province (Dehdez, ShahzadeAmad1, SahzadeAhmad2 and DareKhorson) at three phenological stages (vegetative, flowering and seeding). Soil texture, lime, pH, electrical conductivity (EC), organic matter, N and P contents have been sampled in 0-30 depth. Aerial parts of G. tournefortii (leaf, stem and seed) were collected, dried and was measured crude protein (CP), dry matter digestibility (DMD), Water Soluble Carbohyrates (WSC), Ash and acid detergent fiber (ADF) by NIR method. For statistical analysis was used multivariate analysis of variance and Duncan test was used to compare means.The result showed that five parameters nutritional values of G.tournefortii leaf at vegetative stage more than two flowering and seeding in the four habitats. The comparison showed significant mean differences (p