Mehdi Heydari, Ali Mahdavi, Elham Jaferyan, Vahid Mirzaeizadeh,
Volume 2, Issue 2 (3-2016)
Abstract
Judas tree belongs to valuable species in Zagros forests. Nowadays, due to the special beauty of this species, it has received substantial attention in afforestation. In this regard, the improvement of seed germination is a suitable way to improve the quantity and quality of producing seedlings in nurseries and the establishment of forest plantation. In this study, the seed germination characteristics and seedling survival of Cercis griffithii in different soil treatments have been surveyed in the nursery of Aivan County in Ilam province. The experiment was set up as a randomized complete design with four treatments each contained 120 pots. Three seeds in plastic pots were sown in nursery soil (Control Control soil- cattle manure (5:1), Control soil- Litter (5:1) and Control soil- Cattle manure- Litter (5:1:1). According to the one-way ANOVA results, significant differences were observed between soil treatments in terms of germination rate, maximum, mean daily germination and germination energy, while there were no significant differences in other germination characteristics between soil treatments. The highest germination rate, maximum, mean daily germination and germination energy were observed in the treatment of Control soil- Cattle manure- Litter. In terms of time, seedling survival decreased from September to March. The results showed that there is a significant correlation between mean daily germination and different soil composition. In general, it can be concluded that germination and survival of Cercis griffithii can be improved using organic compounds in the nursery.
Mr Yasem Khanmohmadian, Mr Vahid Mirzaeizadeh,
Volume 4, Issue 1 (reserch article 2024)
Abstract
Introduction: Zagros habitat as one of the important biological resources of the country is of special importance in terms of size, plant and animal species, genetic resources, pastures under turbulence, etc. Due to its structural and vegetative characteristics, it has a high diversity of plants. The aim of this study is to achieve the relationship between plant diversity with adaptive factors and also to identify the dominant flora of the region.
Results: The results of a 1700-hectare tour of the region's forests showed that a total of 79 herbaceous species belonging to 66 genera and 32 families, 5 tree species and 6 shrub species were identified in the study area. Among the herbaceous species, Bromus Tectorum (L) are among the plants with 69%, Picnomon Cass with 62%, Geranium Lucidum with 58%, respectively. Hordeum Bulbosum (51%) and Medicago Radiata (49%) were the most abundant in the region, and Qurecus Brantii Linddi, one of the western oak species, has the highest presence and percentage of cover. Allocates. Shannon-Winro Variety Index of plant species was positively correlated with organic matter and nitrogen, so that with increasing these elements, Shannon-Winro Ghana variety increased. Soil organic matter plays a very important role in plant growth and distribution. According to the study, the regeneration of oak and wild cherry seeds with nitrogen and potassium showed a positive correlation. Nitrogen and potassium are the most important nutrients in the soil, which play an important role in plant growth.
Overall Conclusion: According to studies conducted among different plant species in this section, the species have edible, industrial and conservation values, so protect these existing areas and try to revive and develop them. It is a necessity today. Implementation of the management of the governing unit on it is witnessing an increase in the richness and diversity of vegetation in the region and subsequently prevent any destructive floods in the region. Destruction of forests, vegetation, soil, etc. can play an effective role. Proposed programs are a comprehensive management plan and revised plans that must be updated every few years according to the conditions of the region, so the proposed programs, including Better management of livestock farmers in the region and strengthening the protection level of the region will be a prerequisite for research and educational, research and recreational programs.
Innovation aspects:
1- Investigating biodiversity in the forests of northern Ilam
2- Determining the relationship between plant biodiversity and adaptive conditions in the forests of northern Ilam
