ﺑﺮرﺳﯽ اﺛﺮ رژﯾﻢﻫﺎي ﮐﻢ آﺑﯿﺎري ﺑﺮ ﻋﻤﻠﮑﺮد و ﺑﻬﺮه وري ﻣﺼﺮف آب ﺧﯿﺎر در اﻫﻮاز

Effect of Water Deficit Imposing Methods on Yield and Water Productivity Indices of Cucumber (Cucumis sativus L.) in Ahvaz Region

ﭼﮑﯿﺪه ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺄﺛﯿﺮ روش ﻫﺎي ﮐﻢ آﺑﯿﺎري ﺑﺮ ﺧﯿﺎر ﮐﺸﺖ ﺷﺪه ﺗﺤﺖ ﺷﺮاﯾﻂ ﮔﻠﺨﺎﻧﻪ اي آزﻣﺎﯾﺸﯽ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﮐﺎﻣﻼ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺳﻄﺢ آﺑﯿﺎري 85 ،100و 75درﺻﺪ ﻧﯿﺎزآﺑﯽ در 2ﻓﺼﻞ ﮐﺸﺖ ﻃﯽ ﺳﺎلﻫﺎي 1397و 1398اﻧﺠﺎم ﮔﺮﻓﺖ. ﻋﻤﻠﮑﺮد و ﺷﺎﺧﺺﻫﺎي ﮐﻤﯽ و ﮐﯿﻔﯽ ﻋﻤﻠﮑﺮد در ﻃﻮل آزﻣﺎﯾﺶ اﻧﺪازهﮔﯿﺮي ﺷﺪﻧﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ در ﮐﺸﺖ اول در ﺗﯿﻤﺎرﻫﺎي 85و 75 درﺻﺪ ﻧﯿﺎز آﺑﯽ ﺑﻪ ﺗﺮﺗﯿﺐ ﻣﯿﺰان ﺑﻬﺮهوري ﻣﺼﺮﻓﯽ آب ﻧﺴﺒﺖ ﺑﻪ ﺗﯿﻤﺎر ﺷﺎﻫﺪ ﺑﻪ ﻣﯿﺰان 6/12و 15/73درﺻﺪ ﮐﺎﻫﺶ ﯾﺎﻓﺘﻪ اﺳﺖ. ﻫﻤﭽﻨﯿﻦ در ﮐﺸﺖ دوم در ﺗﯿﻤﺎرﻫﺎ ي 85 و 75درﺻﺪ ﻧﯿﺎز آﺑ ﯽ ﻣﯿﺰان ﺑﻬﺮهوري ﻣﺼﺮﻓﯽ آب ﻧﺴﺒﺖ ﺑﻪ ﺗﯿﻤﺎر ﺷﺎﻫﺪ ﺑﻪ ﻣﯿﺰان 3/4 و 12/6درﺻﺪ ﮐﺎﻫﺶ ﯾﺎﻓﺘﻪ اﺳﺖ ﺗﺠﺰﯾﻪ و ﺗﺤﻠﯿﻞ دادهﻫﺎي ﻣﺮﺑﻮط ﺑﻪ ﻋﻤﻠﮑﺮد و ﺷﺎﺧﺺﻫﺎي ﻋﻤﻠﮑﺮد و ﺷﺎﺧﺺﻫﺎي رﺷﺪ ﮔﯿﺎه ﻧﺸﺎن داد ﮐﻪ ﺑﺎ ﮐﺎﻫﺶ ﻣﯿﺰان ﻣﺼﺮف آب ﺑﻬﺮهوري ﻣﺼﺮف آب و ﻋﻤﻠﮑﺮد ﺑﻪ ﻃﻮر ﻣﻌﻨﯽداري ﮐﺎﻫﺶ ﻣﯽﯾﺎﺑﺪ.

In order to investigate the effect of irrigation deficit an experiment was conducted in a completely randomized block design with three irrigation levels of 100, 85 and 75% water requirement in two growing seasons during the years 2018 and 2019. The results showed that in the first crop of treatments of 85 and 75 percent of water requirement, the amount of water productivity decreased by 6.12 and 15.73 percent compared to the control treatment, respectively. Also in the second crop, the amount of water consumption in treatments of 85 and 75% of water requirement compared to the control treatment has decreased. Analysis of data related yield indices and plant growth indices showed that with decreasing water consumption, water productivity and performance are significantly reduced