TY - JOUR ID - 60398 TI - Weeds community structure in rainfed chickpea fields: a Case study in Maragheh JO - Journal of Crops Improvement JA - JCI LA - en SN - 2008-8337 AU - Poorsatari, Reza AU - Dashti, Shahryar AU - Hasan Nejad, Sirous AD - University of Maragheh AD - Assistant Professor of Crop Ecology, Department of Agronomy and Plant Breeding/University of Maragheh AD - Associate Professor of Weed Science, Department of Plant Ecophysiology/University of Tabriz Y1 - 2017 PY - 2017 VL - 19 IS - 1 SP - 215 EP - 228 KW - Diversity KW - Identity KW - relative dominance index KW - Richness KW - Uniformity DO - 10.22059/jci.2017.60398 N2 - Weed identification and their distribution are the most important principals to weed managements. Therefore, the weeds of chickpea fields in rain-fed areas of Maragheh, North west Iran, were systematically sampled and the traits of species distribution, life cycle, canopy, species diversity and similarity indices were studied. Convolvulus arvensis, Cardaria draba, Sophora alopecuroides, Acroptilon repens, Tragopogon graminifolius, Euphorbia helioscopia, Geranium tuberosum and Falcaria vulgaris had a high frequency among the weeds. Also diversity, uniformity and dominance of weed population were evaluated via Shannon-Wiener index and similarities and differences between various regions based on species diversity were evaluated using Sorensen - and Jaccard indices. Among the studied areas, the highest and lowest richness index was belonged to Khodajo (44 species) and Khorma Zard (28 species), respectively, whereas, the regions had the equal Shanon-Winener diversity index. Tragopogon graminifolius, Convolvulus arvensis and Galium tricornutum with relative dominance indices of 38.82, 32.92 and 28.39 respectively, were detected as dominant weeds in Maragheh chickpea fields.  UR - https://jci.ut.ac.ir/article_60398.html L1 - https://jci.ut.ac.ir/article_60398_b27453f99f530a9a84f36cf8243d48a4.pdf ER -