Univrsity Of Tehran Press Water and Irrigation Management 2251-6298 6 1 2016 04 20 The effect of salinity stress and over irrigation on yield and yield components of green pepper The effect of salinity stress and over irrigation on yield and yield components of green pepper 89 100 60922 10.22059/jwim.2016.60922 FA Farasat Sajjadi M.Sc. Student, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran Hossein Sharifan Associate Professor, Department of Water Engineering, College of Water & Soil Engineering, Gorgan University of Agricultural Science and Natural Resources, Iran Aboutaleb Hezarjaribi Associate Professor, Department of Water Engineering, College of Water & Soil Engineering, Gorgan University of Agricultural Science and Natural Resources, Iran Ghorban Ghorbani-e-Nasrabad Assistant Professor, Cotton Research Institute, Iran Journal Article 2016 01 31 The goal of this study was to investigate the effect of salinity and amounts of irrigation water on yield and yield components green pepper (Capsicum annum) variety of green Hashemi in greenhouse conditions.The research was done based on factorial experiment in completely randomized design including three replications as pot planting in Gorgan University of Agricultural Sciences and Natural Resources.Irrigation water quality consist of five levels of salinity (0%, 10%, 20%, 30% and 40% of the mixing sea water and tap water) and the quantity of irrigation water consist of three levels (100%, 125% and 150% of water requirement were considered). Data were analyzed with SAS and the results showed that the effect of irrigation water quantities on length, diameter and length to diameter ratio of fruit was significant (P<0.05). The results showed that effect of irrigation water salinity on number of fruit per plant, fresh and dry weight, plant height, length, diameter and length to diameter ratio of fruit was significant (P<0.01). The interaction effect of salinity and irrigation water quantities on plant height, length and length to diameter ratio of fruit was significant (P<0.01), but diameter of fruit was significant (P<0.05). The goal of this study was to investigate the effect of salinity and amounts of irrigation water on yield and yield components green pepper (Capsicum annum) variety of green Hashemi in greenhouse conditions.The research was done based on factorial experiment in completely randomized design including three replications as pot planting in Gorgan University of Agricultural Sciences and Natural Resources.Irrigation water quality consist of five levels of salinity (0%, 10%, 20%, 30% and 40% of the mixing sea water and tap water) and the quantity of irrigation water consist of three levels (100%, 125% and 150% of water requirement were considered). Data were analyzed with SAS and the results showed that the effect of irrigation water quantities on length, diameter and length to diameter ratio of fruit was significant (P<0.05). The results showed that effect of irrigation water salinity on number of fruit per plant, fresh and dry weight, plant height, length, diameter and length to diameter ratio of fruit was significant (P<0.01). The interaction effect of salinity and irrigation water quantities on plant height, length and length to diameter ratio of fruit was significant (P<0.01), but diameter of fruit was significant (P<0.05). https://jwim.ut.ac.ir/article_60922_8deb25294ce4b0f90b6186aa9ea67fc6.pdf