اﺛﺮ ﺗﯿﻤﺎر آب داغ ﺑﺮ ﺳﻼﻣﺘﯽ و ﺟﻮاﻧﻪ زﻧﯽ ﺑﺬر ﭘﻨﺒﻪ رﻗﻢ ﺳﺎﺟﺪي

Effect of hot water treatment on health and germination of Sajedi cotton seed

ﺑﯿﻤﺎري ﻫﺎي ﺑﺬر زاد ﺗﻬﺪﯾﺪي ﺟﺪي ﺑﺮاي ﻋﻤﻠﮑﺮد و ﮐﯿﻔﯿﺖ ﻣﺤﺼﻮل ﻣﺤﺴﻮب ﻣﯽ ﺷﻮﻧﺪ در ﮐﺸﺎورزي ارﮔﺎﻧﯿﮏ ﺗﯿﻤﺎرﻫﺎي ﺟﺎﯾﮕﺰﯾﻦ ﻣﻮاد ﺷﯿﻤﯿﺎﯾﯽ ﯾﮑﯽ از ﻧﯿﺎزﻫﺎي اﺳﺎﺳﯽ در ﮐﻨﺘﺮل ﺑﯿﻤﺎري ﻫﺎي ﺑﺬر زاد ﻣﯽ ﺑﺎﺷﻨﺪ. ﺗﯿﻤﺎرﻫﺎي ﺑﯿﻮﻟﻮژﯾﮏ ﻣﺨﺘﻠﻔﯽ ﺟﻬﺖ ﮐﻨﺘﺮل ﻋﻮاﻣﻞ ﺑﯿﻤﺎرﯾﺰا در ﺑﺬر اﺳﺘﻔﺎده ﻣﯽ ﮔﺮدد ﮐﻪ از ﻣﯿﺎن آﻧﻬﺎ ﺗﯿﻤﺎر آب داغ ﯾﮑﯽ از ﺳﺎده ﺗﺮﯾﻦ ﺗﯿﻤﺎرﻫﺎي ﺑﯿﻮﻟﻮرﯾﮏ ﺿﺪﻋﻔﻮﻧﯽ ﺑﺬر ﻣﺤﺴﻮب ﻣﯽ ﺷﻮد اﻣﺎ اﻃﻤﯿﻨﺎن از ﮐﻨﺘﺮل ﻣﻮﺛﺮ ﻋﻮاﻣﻞ ﺑﯿﻤﺎرﯾﺰا و ﻫﻤﭽﻨﯿﻦ ﻋﺪم ﺗﺎﺛﯿﺮ ﻣﻨﻔﯽ اﯾﻦ ﺗﯿﻤﺎر ﺑﺮ ﻗﺪرت ﺟﻮاﻧﻪ زﻧﯽ ﺑﺬر از ﻧﮑﺎت ﻣﻬﻤﯽ ﻫﺴﺘﻨﺪ ﮐﻪ در ﺑﻪ ﮐﺎرﮔﯿﺮي اﯾﻦ روش ﺿﺮوري ﺑﻪ ﻧﻈﺮ ﻣﯽ رﺳﻨﺪ. ﺑﺪﯾﻦ ﻣﻨﻈﻮر آزﻣﺎﯾﺸﯽ ﺑﺮ روي ﺑﺬر ﭘﻨﺒﻪ رﻗﻢ ﺳﺎﺟﺪي ﺻﻮرت ﮔﺮﻓﺖ ﮐﻪ در آن ﺑﺬور ﺑﻪ ﻣﺪت ﺻﻔﺮ، 15، 30، 60 دﻗﯿﻘﻪ در آب ﮔﺮم 40 درﺟﻪ ﺳﺎﻧﺘﯽ ﮔﺮاد و آب داغ 55 درﺟﻪ و 75 درﺟﻪ ﻗﺮار ﮔﺮﻓﺘﻨﺪ. ﻧﺘﺎﯾﺞ آزﻣﻮن ﺟﻮاﻧﻪ زﻧﯽ ﻧﺸﺎن داد ﮐﻪ ﮐﻪ ﺗﯿﻤﺎر آب داغ 55 درﺟﻪ ﺳﺎﻧﺘﯽ ﮔﺮاد در ﻧﯿﻢ ﺳﺎﻋﺖ ﺑﺪون ﺗﺎﺛﯿﺮ ﻣﻨﻔﯽ ﺑﺮ روي وﯾﮕﻮر ﺑﺬر ﺑﻪ ﻣﻘﺪار ﻗﺎﺑﻞ ﻣﻼﺣﻀﻪ اي ﻗﺎرچ ﻫﺎي ﻣﻮﺟﻮد در ﺑﺬر را از ﺑﯿﻦ ﺑﺮد.

Seedling diseases are a serious threat to yield and product quality. In organic farming, alternative chemical treatments are one of the essential requirements in controlling seed-borne diseases. Various biological treatments are used to control pathogens in the seed, including hot water treatment as one of the simplest biological disinfectant seed treatments, but ensuring effective control of pathogens as well as non-negative effects on seed germination ability. There are important points. Which seem necessary in applying this method (1). For this purpose, an experiment was carried out on cotton seed Sajedi in which the seeds were placed in warm water at 40 ° C for 40, 15, 30, 60 minutes and 55 and 75 ° C for hot water. Germination test results showed that the hot water treatment 55 minutes Within half an hour, the seeds of the fungus were eliminated in a significant amount without any adverse effect on the seed vigor