برخی از شاخصهای رشدی دو رقم لوبیا قرمز تحت سطوح مختلف تنش خشکی و کود نیتروژن
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عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1داﻧﺶ آﻣﻮﺧﺘﻪ ﻛﺎرﺷﻨﺎﺳﻲ ارﺷﺪ داﻧﺸﮕﺎه ﺗﻬﺮان
2اﺳﺘﺎد ﭘﺮدﻳﺲ ﻛﺸﺎورزی و ﻣﻨﺎبع ﻃﺒﻴﻌﻲ داﻧﺸﮕﺎه ﺗﻬﺮان
چکیده
ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ اﺛﺮ ﺗﻨﺶ ﺧﺸﻜﻲ و ﻧﻴﺘﺮوژن ﺑﺮ روی ﺑﺮﺧﻲ از ﺷﺎﺧﺺﻫﺎی رﺷﺪی دو ژﻧﻮﺗﻴﭗ ﻟﻮﺑﻴﺎ ﻗﺮﻣﺰ آزﻣﺎﻳﺸﻲ ﺑﻪ ﺻﻮرت اﺳﭙﻠﻴﺖ ﭘﻼت ﻓﺎﻛﺘﻮرﻳﻞ در ﺷﺮاﻳﻂ ﻣﺰرﻋﻪ اﻧﺠﺎم ﮔﺮﻓﺖ. ﺗﻴﻤﺎرﻫﺎی آزﻣﺎﻳﺸﻲ ﻋﺒﺎرت ﺑﻮدﻧﺪ از ﺳﻪ ﺳﻄﺢ ﺗﻨﺶ ﺧﺸﻜﻲ، ﭼﻬﺎر ﺳﻄﺢ ﻛﻮد ﻧﻴﺘﺮوژن و دو ژﻧﻮﺗﻴﭗ ﻟﻮﺑﻴﺎ. ﻣﻘﺎﻳﺴﻪ روﻧﺪ ﺗﻐﻴﻴﺮات ﻧﺴﺒﺖ ﺳﻄﺢ ﺑﺮگ و ﻣﺎده ﺧﺸﻚ ﺗﺠﻤﻊ ﻳﺎﻓﺘﻪ در دو رﻗﻢ ﻣﻮرد ﺑﺮرﺳﻲ در ﻃﻮل دوره رﺷﺪ ﻧﺸﺎن داد ﻛﻪ ﺑﻪ ﻃﻮر ﻛﻠﻲ اﻳﻦ ﺷﺎﺧﺺﻫﺎ در رﻗﻢ اﺧﺘﺮ ﺑﻪ ﺻﻮرت ﭼﺸﻤﮕﻴﺮی ﺑﻴﺸﺘﺮ از ﻻﻳﻦ D81083 ﺑﻮد. ﺑﻪ ﻃﻮر ﻛﻠﻲ ﺑﺮرﺳﻲ روﻧﺪ ﺷﺎﺧﺺ ﻫﺎ ﻧﺸﺎن داد ﻛﻪ ﺗﻨﺶ ﺧﺸﻜﻲ ﺷﺪﻳﺪ ﺳﺒﺐ ﻛﺎﻫﺶ ﻗﺎﺑﻞ ﺗﻮﺟﻪ ﺻﻔﺎت ﺳﺮﻋﺖ رﺷﺪ ﻧﺴﺒﻲ، ﻣﻴﺰان ﺳﻄﺢ ﺑﺮگ، ﻣﺎده ﺧﺸﻚ ﺗﺠﻤﻊ ﻳﺎﻓﺘﻪ و ﻧﺴﺒﺖ ﺳﻄﺢ ﺑﺮگ ﮔﺮدﻳﺪ. ﻫﻤﭽﻨﻴﻦ اﻋﻤﺎل ﻛﻮد ﻧﻴﺘﺮوژن ﺳﺒﺐ اﻓﺰاﻳﺶ ﺳﺮﻋﺖ رﺷﺪ ﻧﺴﺒﻲ، ﺷﺎﺧﺺ ﺳﻄﺢ ﺑﺮگ، ﻧﺴﺒﺖ ﺳﻄﺢ ﺑﺮگ و ﻣﺎده ﺧﺸﻚ ﺗﺠﻤﻊ ﻳﺎﻓﺘﻪ ﮔﺮدﻳﺪ و ﺗﻴﻤﺎر 150 ﻛﻴﻠﻮﮔﺮم ﻧﻴﺘﺮوژن در ﻫﻜﺘﺎر ﻧﺴﺒﺖ ﺑﻪ ﺗﻴﻤﺎر ﺷﺎﻫﺪ ﺗﻔﺎوت ﻗﺎﺑﻞ ﺗﻮﺟﻬﻲ داﺷﺖ.
کلیدواژه ها
Title
Some growth indices of two red kidney bean under different levels of drought stress and nitrogen fertilizer
Authors
Abstract
To study the growth indices of kidney bean under different levels of drought stress and nitrogen fertilizer, an experiment as split plot factorial with three replications in field condition was carried out. Experimental treatments included: Drought stress in three levels, N fertilizer at four levels, and two red bean genotypes. Results showed that LAR and ADM in Akhtar was higher than D81083 in during growth season. Drought stress significantly decreased RGR, LAI, ADM, and LAR values. Also, application of nitrogen increased RGR, LAI, ADM, and LAR values during plant growth period and in 150 kg ha-1 of nitrogen significantly was higher than control treatment.
keywords: red kidney bean, drought stress, nitrogen, growth indices
keywords: red kidney bean, drought stress, nitrogen, growth indices
Keywords
red kidney bean, drought stress, Nitrogen, growth indices