اﺛﺮ ﺷﻮري آب آﺑﯿﺎري و ﻣﺤﻠﻮل ﭘﺎﺷﯽ ﺳﻮﻟﻔﺎت ﭘﺘﺎﺳﯿﻢ ﺑﺮ ﻋﻤﻠﮑﺮد ﮐﻤﯽ و ﮐﯿﻔﯽ ﻻﯾﻦ ﻫﺎي ﻣﻮﺗﺎﻧﺖ ﭘﻨﺒﻪ

Effect of saline irrigation and potassium spray on quantitate and qualitative yield of of cotton mutant lines

اﯾﻦ ﻣﻄﺎﻟﻌﻪ ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ اﺛﺮ آﺑﯿﺎري ﺑﺎ آب ﺷﻮر ﺑﺮ ﻋﻤﻠﮑﺮد ﮐﻤﯽ و ﮐﯿﻔﯽ ژﻧﻮﺗﯿﭗ ﻫﺎي ﭘﻨﺒـﻪ ﺻـﻮرت ﮔﺮﻓـﺖ . آزﻣـﺎﯾﺶ د ر اﯾﺴﺘﮕﺎه ﺗﺤﻘﯿﻘﺎت ﺷﻮري رودﺷﺖ اﺻﻔﻬﺎن ﻃﯽ ﺳﺎل 1394اﺟﺮا ﺷﺪ. آزﻣﺎﯾﺶ ﺑﻪ ﺻﻮرت اﺳـﭙﻠﯿﺖ ﻓﺎﮐﺘﻮرﯾـﻞ در ﻗﺎﻟـﺐ ﻃـﺮح ﺑﻠﻮك ﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﭼﻬﺎر ﺗﮑﺮار اﻧﺠﺎم ﺷﺪ. در اﯾﻦ آزﻣﺎﯾﺶ ﮐﺮتﻫﺎي اﺻﻠﯽ ﺷﺎﻣﻞ ﺗﯿﻤﺎرﻫﺎي آﺑﯿـﺎري 4 )ﺷـﺎﻫﺪ (، 8 و 12 دﺳﯽ زﯾﻤﻨﺲ ﺑﺮ ﻣﺘﺮ و ﮐﺮت ﻫﺎي ﻓﺮﻋﯽ ﺷﺎﻣﻞ ﺗﻠﻔﯿﻖ ﻓﺎﮐﺘﻮرﯾﻞ ﺳﻪ ژﻧﻮﺗﯿـﭗ )ژﻧﻮﺗﯿـﭗ ﻣﻮﺗﺎﻧـﺖ ال ام 1673، ال ام 1303 و ﺷﺎﯾﺎن( ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﯽ ﺳﻪ ﺳﻄﺢ ﺳﻮﻟﻔﺎت ﭘﺘﺎﺳﯿﻢ ﺑﻪ ﻣﯿـﺰان 4 ،2 و 6 ﮐﯿﻠـﻮﮔﺮم در 1000 ﻟﯿﺘـﺮ آب در ﻫﮑﺘـﺎر و ﺷـﺎﻫﺪ )آب( اﻧﺘﺨﺎب ﺷﺪﻧﺪ. ﻧﺘﺎﯾﺞ آزﻣﺎﯾﺶ ﻧﺸﺎن داد ﺷﻮري آب آﺑﯿﺎري ﺳﺒﺐ ﮐﺎﻫﺶ درﺻﺪ ﮐﯿﻞ و ﻋﻤﻠﮑﺮد وش در ﭼﯿﻦ اول و دوم ﺷـﺪ در ﺑﯿﻦ ارﻗﺎم ﻧﯿﺰ ﺑﺎﻻﺗﺮﯾﻦ درﺻﺪ ﮐﯿﻞ و ﻋﻤﻠﮑﺮد وش در ژﻧﻮﺗﯿﭗ ال ام 1303 ﻣﺸﺎﻫﺪه ﺷﺪ. ﻣﺤﻠﻮل ﭘﺎﺷﯽ داراي اﺛـﺮ ﻣﺜﺒـﺖ ﺑـﺮ اﯾﻦ ﺻﻔﺎت ﺑﻮد و ﻋﻤﻠﮑﺮد ژﻧﻮﺗﯿﭗ ﻫﺎي ﭘﻨﺒﻪ را در ﺷﺮاﯾﻂ ﺷﻮر اﻓﺰاﯾﺶ داد. ﻧﺘﺎﯾﺞ ﺣﺎﺻﻞ از اﯾﻦ ﻣﻄﺎﻟﻌﻪ ﻣﺸﺨﺺ ﻧﻤﻮد ﮐـﻪ در ﺷﺮاﯾﻂ ﺷﻮر از ﻣﺤﻠﻮلﭘﺎﺷﯽ ﺳﻮﻟﻔﺎت ﭘﺘﺎﺳﯿﻢ در ﺟﻬﺖ ﺗﺨﻔﯿﻒ اﺛﺮات ﺷﻮري و اﻓﺰاﯾﺶ ﻋﻤﻠﮑﺮد ژﻧﻮﺗﯿﭗ ﻫﺎي ﭘﻨﺒـﻪ ﺑﻬـﺮه ﺑـﺮد

This study was conducted to evaluate the effect of saline irrigation on quantitate and qualitative yield of cotton genotypes. Experiments were carried out at Rudasht saline Research Station in Isfahan during 2015. The experiment was split factorial based on randomized complete block design with four replications. In this experiment, the main plots consisted of irrigation with 4 (control), 8 and 12 dS / m saline water and subplots including factorial combining of three genotypes (mutant genotype 1673, LM 1303 and Shayan) with spraying three levels of potassium sulfate (2, 4 and 6 kg / 1000 liters of water per hectare and water). The results showed that salinity of irrigated water reduced linter percentage, yield in first and second harvest. Among the cultivars, the highest linter percentage and its yield were observed in the LM 1303 genotype. Spraying with potassium sulfate had a positive effect on these traits and increased cotton genotypes yield under salinity conditions. The results of this study showed that in saline conditions, soluble potassium sulfate was used to reduce the effects of salinity and increase the yield of cotton genotypes.