ﺑﺮرﺳﯽ ﺻﻔﺎت ﻣﻮرﻓﻮﻟﻮژﯾﮏ در ﺗﻨﺶ ﮔﺮﻣﺎي اﻧﺘﻬﺎي ﻓﺼﻞ در ژﻧﻮﺗﯿﭗﻫﺎي ﺟﻮ در ﻣﻐﺎن

Investigation of morphological traits in late season heat stress in barley genotypes in Moghan

ﺟﻮ ﺑﺎ ﻧﺎم ﻋﻠﻤﯽ ).Hordeum vulgare L( ﯾﮑﯽ از ﻣﻬﻤﺘﺮﯾﻦ و ﻗﺪﯾﻤﯿﺘﺮﯾﻦ ﮔﯿﺎﻫﺎن زراﻋﯽ اﺳﺖ ﮐﻪ ﺑﯿﺸﺘﺮﯾﻦ ﺳﺎزش و ﺗﺤﻤﻞ را ﺑﻪ ﺷﺮاﯾﻂ ﺧﺸﮑﯽ و ﮔﺮﻣﺎ ﻧﺴﺒﺖ ﺑﻪ دﯾﮕﺮ ﻏﻼت دارد و ﺗﺎ ﺣﺪودي ﻣﻘﺎوم ﺑﻪ ﺧﺸﮑﯽ اﺳﺖ و ﻧﺴﺒﺖ ﺑﻪ ﺷﺮاﯾﻂ آب وﻫﻮاﯾﯽ ﻣﺨﺘﻠﻒ ﺳﺎزﮔﺎري دارد. ﺟﻬﺖ ارزﯾﺎﺑﯽ ژﻧﻮﺗﯿﭗﻫﺎي ﻣﺨﺘﻠﻒ ﺟﻮ ﺑﻪ ﺗﻨﺶ ﮔﺮﻣﺎي اﻧﺘﻬﺎي ﻓﺼﻞ، آزﻣﺎﯾﺶ ﻣﺰرﻋﻪاي در ﻃﯽ ﺳﺎلﻫﺎي زراﻋﯽ 97-98 در اﯾﺴﺘﮕﺎه ﺗﺤﻘﯿﻘﺎت ﮐﺸﺎورزي داﻧﺸﮑﺪه ﮐﺸﺎورزي ﻣﻐﺎن اﺟﺮا ﮔﺮدﯾﺪ.آزﻣﺎﯾﺶ ﺑﻪ ﺻﻮرت ﮐﺮتﻫﺎي ﺧﺮد ﺷﺪه )اﺳﭙﻠﯿﺖ ﭘﻼت( در ﺳﻪ ﺗﮑﺮار ﺑﺎ 16 ژﻧﻮﺗﯿﭗ ﭘﯿﺸﺮﻓﺘﻪ ﺟﻮ اﻧﺠﺎم ﮔﺮﻓﺖ. ﺑﺮ اﺳﺎس ﻧﺘﺎﯾﺞ ﺑﻪ دﺳﺖ آﻣﺪه از ﺟﺪول ﺗﺠﺰﯾﻪ وارﯾﺎﻧﺲ ﺻﻔﺎت ﻣﻮرد ارزﯾﺎﺑﯽ، اﺛﺮ ﻣﺘﻘﺎﺑﻞ ﻣﺤﯿﻂ )ﺗﺎرﯾﺦ ﮐﺎﺷﺖ( در ﻧﻮع ژﻧﻮﺗﯿﭗ ﺑﺮاي ﻫﻤﻪي ﺻﻔﺎت ﻣﻮرد ارزﯾﺎﺑﯽ ﺑﻪ ﺟﺰ ﺗﻌﺪاد ﭘﻨﺠﻪ و ﻫﻤﭽﻨﯿﻦ ﺗﻌﺪاد ﭘﻨﺠﻪ ﺑﺎرور داراي اﺧﺘﻼف ﻣﻌﻨﯽ دار ﺑﻮد. در ﺣﺎﻟﺖ ﮐﻠﯽ ﻣﯽﺗﻮان ﮔﻔﺖ ﮐﻪ ژﻧﻮﺗﯿﭗﻫﺎي ﺷﻤﺎره 7 و 8 ﻫﻢ در ﺷﺮاﯾﻂ ﺗﻨﺶ و ﻫﻢ در ﺷﺮاﯾﻂ ﻧﺮﻣﺎل از ﻧﻈﺮ ﺻﻔﺎت ﻣﻮرد ارزﯾﺎﺑﯽ داراي ﻣﯿﺎﻧﮕﯿﻦ ﺑﺎﻻﺗﺮي ﻧﺴﺒﺖ ﺑﻪ ﺳﺎﯾﺮ ارﻗﺎم ﺑﻮدﻧﺪ.

Barley (Hordeum vulgare L.) is one of the most important and oldest crop that has the best adaptation and tolerance to drought and heat conditions than other cereals and is partly drought tolerant and adapted to different climatic conditions. To evaluate different genotypes of barley to late season heat stress, a field experiment was conducted during 2018-2019 at the Agricultural Research Station of Moghan College of Agriculture. The experiment was split plot with 3 replications that was performed with 16 dvanced barley genotyping. Based on the results of analysis of variance table of evaluated traits, the interaction effect of environment (planting date) on genotype was significant for all traits except number of tillers and number of fertile tillers. Generally, we can say that genotypes 7 and 8 had higher mean values than the other cultivars in both stress and normal conditions.