پديد آورندگان :
فتحي كوزه گراني, اكرم دانشگاه آزاد اسلامي مهاباد - گروه زراعت و اصلاح نباتات , مير محمودي, تورج دانشگاه آزاد اسلامي مهاباد - گروه زراعت و اصلاح نباتات
كليدواژه :
اﻧﺪازه ﺑﺬر , ﺷﻮري , ﺟﻮاﻧﻪزﻧﯽ , گياه ﺟﻮ , آنزيم‌هاي آنتي اكسيدانت
چكيده فارسي :
ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ اﺛﺮ ﺷﻮري و اﻧﺪازه ﺑﺬر ﺑﺮ واﮐﻨﺶ ﺟﻮاﻧﻪزﻧﯽ، رﺷﺪ ﮔﯿﺎﻫﭽﻪ و ﮐﺎراﯾﯽ ﺗﺒﺪﯾﻞ ذﺧﺎﯾﺮ ﺑﺬر در ﺟﻮ در ﺷﺮاﯾﻂ ﺗﻨﺶ ﺷﻮري آزﻣﺎﯾﺸﯽ ﺻﻮرت ﻃﺮح ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﮐﺎﻣﻼً ﺗﺼﺎدﻓﯽ ﺗﮑﺮار در ﺳﺎل 1397 اﻧﺠﺎم ﺷﺪ. ﻓﺎﮐﺘﻮر اول اﻧﻮاع ﺷﻮري در ﭼﻬﺎر ﺳﻄﺢ )ﺻﻔﺮ ﺷﺎﻫﺪ، 8 ،4 و 12 دﺳﯽ زﯾﻤﻨﺲ ﺑﺮ ﻣﺘﺮ( و ﻓﺎﮐﺘﻮر دوم اﻧﺪازه ﺑﺬر)در ﺳﻪ اﻧﺪازه رﯾﺰ )وزن داﻧﻪ ﮐﻤﺘﺮ 25 ﮔﺮم(، ﻣﺘﻮﺳﻂ )وزن ﻫﺰار داﻧﻪ ﺑﯿﻦ 48-25 ﮔﺮم( درﺷﺖ )وزن ﻫﺰار داﻧﻪ ﺑﯿﺶ از 48 ﮔﺮم(( ﺑﻮد. در اﯾﻦ ﺑﺮرﺳﯽ ﺑﺎﻻﺗﺮﯾﻦ درﺻﺪ ﺟﻮاﻧﻪ زﻧﯽ ﺑﺬر )89 درﺻﺪ(، ﻣﯿﺎﻧﮕﯿﻦ ﺟﻮاﻧﻪ زﻧﯽ روزاﻧﻪ )4/02 ﺑﺬر(، ﺳﺮﻋﺖ ﺟﻮاﻧﻪ زﻧﯽ )0/26(، ﻃﻮل رﯾﺸﻪ ﭼﻪ )5/04 ﺳﺎﻧﺘﯽ ﻣﺘﺮ(، ﻃﻮل ﺳﺎﻗﻪﭼﻪ )5/32 ﺳﺎﻧﺘﯽ ﻣﺘﺮ( و وزن ﺧﺸﮏ ﺳﺎﻗﻪﭼﻪ )0/026 ﮔﺮم ﺑﻪ ﺳﻄﺢ ﺻﻔﺮ ﺷﻮري )ﺷﺎﻫﺪ( اﺧﺘﺼﺎص داﺷﺖ ﻫﻤﭽﻨﯿﻦ ﮐﻤﺘﺮﯾﻦ ﻣﻘﺎدﯾﺮ ﻓﻌﺎﻟﯿﺖ آﻧﺰﯾﻢﻫﺎي آﻧﺘﯽاﮐﺴﯿﺪاﻧﺖ ﺑﻪ ﺳﻄﺢ ﺻﻔﺮ ﺷﻮري اﺧﺘﺼﺎص داﺷﺖ. در ﺑﯿﻦ اﻧﺪازهﻫﺎي ﻣﺨﺘﻠﻒ ﺑﺬر ﺑﯿﺶﺗﺮﯾﻦ درﺻﺪ ﺟﻮاﻧﻪزﻧﯽ )86/56 درﺻﺪ(، ﻣﯿﺎﻧﮕﯿﻦ ﺟﻮاﻧﻪزﻧﯽ روزاﻧﻪ )4/09 ﺑﺬر(، ﺳﺮﻋﺖ ﺟﻮاﻧﻪزﻧﯽ )0/26(، و ﻣﻘﺪار ﻓﻌﺎﻟﯿﺖ آﻧﺰﯾﻢ ﻫﺎي آﻧﺘﯽ اﮐﺴﯿﺪاﻧﺖ ﺑﻪ ﺑﺬور ﺑﺎ اﻧﺪازه رﯾﺰ و ﺑﺎﻻﺗﺮﯾﻦ ﻃﻮل رﯾﺸﻪﭼﻪ )5/31 ﺳﺎﻧﺘﯽ ﻣﺘﺮ(، ﻃﻮل ﺳﺎﻗﻪ ﭼﻪ )5/94 ﺳﺎﻧﺘﯽ ﻣﺘﺮ(، وزن ﺧﺸﮏ ﺳﺎﻗﻪﭼﻪ )0/026 ﮔﺮم(، ﺑﻪ ﺑﺬور ﺑﺎ اﻧﺪازه درﺷﺖ اﺧﺘﺼﺎص داﺷﺖ. در ﺑﯿﻦ ﺗﯿﻤﺎرﻫﺎي اﺛﺮ ﻣﺘﻘﺎﺑﻞ ﺑﺎﻻﺗﺮﯾﻦ ﻣﺘﻮﺳﻂ زﻣﺎن ﺟﻮاﻧﻪزﻧﯽ روزاﻧﻪ در ﺑﺬور ﺑﺎ اﻧﺪازه درﺷﺖ در ﺳﻄﺢ 12 دﺳﯽزﯾﻤﻨﺲ ﺷﻮري و ﺑﺎﻻﺗﺮﯾﻦ وزن ﺧﺸﮏ رﯾﺸﻪ ﭼﻪ )0/065 ﮔﺮم(، وزن ذﺧﺎﯾﺮ ﻣﺼﺮف ﺷﺪه ﺑﺬر )0/062 ﮔﺮم( و درﺻﺪ اﻧﺘﻘﺎل ذﺧﺎﯾﺮ ﺑﺬر )78/69 درﺻﺪ( ﺑﻪ ﺑﺬور درﺷﺖ در ﺳﻄﺢ ﺻﻔﺮ ﺷﻮري اﺧﺘﺼﺎص ﯾﺎﻓﺖ
چكيده لاتين :
To study the effect of salinity and seed size on germination response, seedling growth and seed conversion efficiency in barley under salt stress conditions, a factorial experiment based on a completely randomized block was conducted in 2018. The first factor was salinity in four levels (zero (control), 4, 8 and 12 dS/m) and the second factor was seed size (in three sizes, small sizes (1000 grain weight less than 25 g), average (1000 grain weight between 25-48 g), large (1000 grain weight above 48g). In this study, the highest seed germination percentage (89%), daily germination average (4.02% seed), root length (5.04 cm), stem length (5.32 cm), stem dry weight (0.026 g), was allocated to the zero level of salinity (control). Also, the lowest amount of antioxidant enzyme activity was assigned to zero salinity level. Among the different seed sizes, the highest germination percentage (86.56%), mean daily germination (4.9 seeds), were belonged to seed with small size and the highest root length (5.31 cm), stem length (5.94 cm), stem dry weight (0.026) and amount of antioxidant enzyme activity were observed in seed white large size. Among interactive treatments, the highest average daily germination time was observed in large-sized seed at 12 d.S and the highest root dry weight (0.065 g), seedling dry weight (0.091 g), the weight of stored grain consumption (0.062), and percentage of transfer of seed reserves was significant (78.96) was belonged to seed with large size in zero salinity (control).
