ﺗﺠﺰﯾﻪ ﺑﻪ ﻋﺎﻣﻞ ﻫﺎ ﺑﺮاي ﻋﻤﻠﮑﺮد داﻧﻪ و ﺑﺮﺧﯽ ﺻﻔﺎت زراﻋﯽ ﺟﻮ ﺗﺤﺖ ﺷﺮاﯾﻂ ﻧﺮﻣﺎل و ﺗﻨﺶ ﺷﻮري

Factor analysis for grain yield and some agronomic traits in barley under normal and salt stress conditions

ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﻫﻤﺒﺴﺘﮕﯽ و ﺗﻌﯿﯿﻦ ﺻﻔﺎت ﻣﺆﺛﺮ ﺑﺮ ﻋﻤﻠﮑﺮد، 150 وارﯾﺘﻪ ي ﺟﻮ در ﺳﺎل زراﻋﯽ 1393-94 و در ﻗﺎﻟﺐ ﻃﺮح آﻟﻔـﺎ ﻻﺗﯿﺲ ﺑﺎ دو ﺗﮑﺮار ﺗﺤﺖ دو ﺷﺮاﯾﻂ ﻧﺮﻣﺎل و ﺗﻨﺶ ﺷﻮري در ﻣﺰرﻋﻪ ي ﻣﺮﮐﺰ ﺗﺤﻘﯿﻘﺎت و آﻣﻮزش ﮐﺸﺎورزي و ﻣﻨﺎﺑﻊ ﻃﺒﯿﻌـﯽ ﯾـﺰد ﮐﺸﺖ ﺷﺪﻧﺪ. ﻧﺘﺎﯾﺞ ﺣﺎﺻﻞ از ﺗﺠﺰﯾﻪ ﻫﻤﺒﺴﺘﮕﯽ و ﺗﺠﺰﯾﻪ ﺑﻪ ﻋﺎﻣﻞ ﻫﺎ ﻧﺸﺎن داد ﮐﻪ ﻋﻤﻠﮑﺮد ﺑﯿﻮﻟﻮژﯾﮏ، ﺷـﺎﺧﺺ ﺑﺮداﺷـﺖ و ﻃـﻮل دوره ﭘﺮﺷﺪن داﻧﻪ ﺑﻪ ﺗﺮﺗﯿﺐ ﻣﻬﻢ ﺗﺮﯾﻦ ﺻﻔﺎت ﻣﺆﺛﺮ ﺑﺮ ﻋﻤﻠﮑﺮد داﻧﻪ در ﻫﺮ دو ﺷﺮاﯾﻂ ﻧﺮﻣﺎل وﺗﻨﺶ ﺷﻮري ﺑﻮدﻧﺪ. ﺑﻨﺎﺑﺮاﯾﻦ، ﻣﯽ ﺗـﻮان از آن ﻫﺎ ﺑﺮاي اﻧﺘﺨﺎب ﺑﺎ ﻫﺪف اﻓﺰاﯾﺶ ﻋﻤﻠﮑﺮد داﻧﻪ در ﺑﺮﻧﺎﻣﻪ ﻫﺎي ﺑﻪ ﻧﮋادي ﺟﻮ ﺑﻬﺮه ﮔﺮﻓﺖ.

In order to investigate correlation and determination of effective traits on yield, 150 barley cultivars were planted in alpha lattice design in two replications at both normal and salt stress conditions at Agriculture and Natural Resources Research and Education Center, Yazd, Iran in 2014-15. Results of correlation analysis and factor analysis showed that biological yield, harvest index and grain filling period were the most important effective traits on grain yield under both normal and salinity stress conditions. Therefore, they can be used for selection in order to increase grain yield in barley breeding programs.