عملکرد دانه و اجزای آن در جمعیت لاینهای اینبرد نوترکیب گندم نان بهاره تحت شرایط زراعی مطلوب
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عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1دانشجوی کارشناسی ارشد اصلاح نباتات، گروه به نژدای و بیوتکنولوژی گیاهی، دانشگاه تبریز
2عضو هیئت علمی، گروه بهنژادی و بیوتکنولوژی گیاهی، دانشکدهی کشاورزی، دانشگاه تبریز
چکیده
دﺳﺖﻳﺎﺑﻲ ﺑﻪ ﺣﺪاﻛﺜﺮ ﭘﺘﺎﻧﺴﻴﻞ ﻋﻤﻠﻜﺮد داﻧﻪ ﭼﺎﻟﺶ اﺻﻠﻲ ﺑﺮﻧﺎﻣﻪﻫﺎی اﺻﻼح ﮔﻨﺪم ﻣﻲﺑﺎﺷﺪ. ﻧﻴﻞ ﺑﻪ اﻳﻦ ﻫﺪف ﻧﻴﺎزﻣﻨﺪ ﺷﻨﺎﺳﺎﻳﻲ ﻋﻮاﻣﻞ دﺧﻴﻞ در ﻛﻨﺘﺮل ﻋﻤﻠﻜﺮد داﻧﻪ و اﺟﺰای آن اﺳﺖ. ﺑﺮای ﺑﺮرﺳﻲ ﻋﻤﻠﻜﺮد داﻧﻪ و اﺟﺰای آن در ﮔﻨﺪم ﻧﺎن ﺑﻬﺎره ، ﺟﻤﻌﻴﺖ ﻣﺘﺸﻜﻞ از 149 ﻻﻳﻦ اﻳﻨﺒﺮد ﻧﻮﺗﺮﻛﻴﺐ ﺣﺎﺻﻞ از ﺗﻼﻗﻲ رﻗﻢ Yecora Rojo )زودرس و ﭘﺎﻛﻮﺗﺎه ﺑﺎ ﻣﻨﺸﺄ اﻣﺮﻳﻜﺎ ﺑﻪ ﻋﻨﻮان واﻟﺪ ﭘﺪری( و ژﻧﻮﺗﻴﭗ ﺑﻮﻣﻲ ﺷﻤﺎره 49 )دﻳﺮرس و ﭘﺎﺑﻠﻨﺪ ﺑﺎ ﻣﻨﺸﺄ ﺳﻴﺴﺘﺎن و ﺑﻠﻮﭼﺴﺘﺎن ﺑﻪ ﻋﻨﻮان واﻟﺪ ﻣﺎدری( ﺑﻪ ﻫﻤﺮاه واﻟﺪﻳﻦ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮکﻫﺎی ﻛﺎﻣﻞ ﺗﺼﺎدﻓﻲ ﺑﺎ دو ﺗﻜﺮار ارزﻳﺎﺑﻲ ﺷﺪﻧﺪ. ﺻﻔﺎت ﻣﻮرد ارزﻳﺎﺑﻲ ﺷﺎﻣﻞ ارﺗﻔﺎع ﺑﻮﺗﻪ، ﺗﻌﺪاد ﺳﻨﺒﻠﻪ در واﺣﺪ ﺳﻄﺢ، داﻧﻪ در ﺳﻨﺒﻠﻪ، وزن ﻫﺰار داﻧﻪ و ﻋﻤﻠﻜﺮد داﻧﻪ ﺑﻮد. ﺗﺠﺰﻳﻪ وارﻳﺎﻧﺲ دادهﻫﺎ ﻧﺸﺎن داد ﻛﻪ ﺑﻴﻦ ﻻﻳﻦﻫﺎ از ﻧﻈﺮ ﻛﻠﻴﻪ ﺻﻔﺎت ﺗﻔﺎوت ﻣﻌﻨﻲدار وﺟﻮد داﺷﺖ ﻛﻪ ﺑﻴﺎﻧﮕﺮ ﺗﻨﻮع ژﻧﺘﻴﻜﻲ ﺑﺎﻻی ﻻﻳﻦﻫﺎی ﻣﻮرد ﻣﻄﺎﻟﻌﻪ اﺳﺖ. داﻣﻨﻪ ﺗﻐﻴﻴﺮات ﻋﻤﻠﻜﺮد داﻧﻪ در ﺟﻤﻌﻴﺖ ﺑﻴﻦ222/8 و 538/8 ﮔﺮم در ﻣﺘﺮ ﻣﺮﺑﻊ ﻣﺘﻐﻴﺮ ﺑﻮد. ﻻﻳﻦ ﺷﻤﺎره 139 ﺑﺎ ارﺗﻔﺎع ﺑﻮﺗﻪ 90/73 ﺳﺎﻧﺘﻲﻣﺘﺮ، وزن ﻫﺰار داﻧﻪ 42/37 ﮔﺮم، ﺗﻌﺪاد ﺳﻨﺒﻠﻪ در ﻣﺘﺮ ﻣﺮﺑﻊ 374 و ﻃﻮل ﺳﻨﺒﻠﻪ 10/23 ﺳﺎﻧﺘﻲﻣﺘﺮ،ﺑﺎﻻﺗﺮﻳﻦ ﻋﻤﻠﻜﺮد داﻧﻪ 538/88 ﮔﺮم در ﻣﺘﺮ ﻣﺮﺑﻊ( را دارا ﺑﻮد. ارﺗﻔﺎع ﺑﻮﺗﻪ ﺑﺎ 0/41 ﺑﻴﺸﺘﺮﻳﻦ وارﺛﺖ ﭘﺬﻳﺮی ﺧﺼﻮﺻﻲ را در ﺑﻴﻦ ﺻﻔﺎت ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﺑﻪ ﺧﻮد اﺧﺘﺼﺎص داد. ﺻﻔﺎت ﺗﻌﺪاد ﺳﻨﺒﻠﻪ در ﻣﺘﺮﻣﺮﺑﻊ و وزن ﻫﺰارداﻧﻪ ﺑﻴﺸﺘﺮﻳﻦ اﺛﺮ را در ﺗﺒﻴﻴﻦ ﻋﻤﻠﻜﺮد داﻧﻪ داﺷﺘﻨﺪ.
کلیدواژه ها
Title
Grain yield and its components in spring wheat recombinant inbreed lines population under optimum agronomic condition
Authors
Abstract
Achieving maximum grain yield potential is main challenge for wheat breeding program. To approach this
goal, identification of factors controlling grain yield and its components is necessary. To study grain yield
and its components in spring bread wheat, population consisted of 149 recombinant inbreed lines derived
from a cross between Yecora Rojo (early maturing, dwarf cultivar from USA as male parent) and genotype
No. 49 (late maturing, a tall cultivar from Sistan and Baluchestan, Iran, as female parent) along with parental
lines were evaluated using a completely randomized blocks with two replications. The evaluated traits
included grain yield, plant height, number of spikes per m2, 1000 grain weight. Analysis of variance revealed
significant differences among lines for all the studied traits indicating high genetic diversity in the
population. Grain yield in population ranged from 222.8 to 538.8 gr/m2. Line number 139 with 90.73 cm
plant height, 42.37 gr 1000 grain weight, 374 spike per m2 and 10.23 spike length had the maximum grain
yield (538.8 gr/m2). Plant height with 0.41 showed the highest narrow sense heritability among the studied
traits. Number of spike per m2 and 1000 grain weight had the maximum effect on grain yield.
goal, identification of factors controlling grain yield and its components is necessary. To study grain yield
and its components in spring bread wheat, population consisted of 149 recombinant inbreed lines derived
from a cross between Yecora Rojo (early maturing, dwarf cultivar from USA as male parent) and genotype
No. 49 (late maturing, a tall cultivar from Sistan and Baluchestan, Iran, as female parent) along with parental
lines were evaluated using a completely randomized blocks with two replications. The evaluated traits
included grain yield, plant height, number of spikes per m2, 1000 grain weight. Analysis of variance revealed
significant differences among lines for all the studied traits indicating high genetic diversity in the
population. Grain yield in population ranged from 222.8 to 538.8 gr/m2. Line number 139 with 90.73 cm
plant height, 42.37 gr 1000 grain weight, 374 spike per m2 and 10.23 spike length had the maximum grain
yield (538.8 gr/m2). Plant height with 0.41 showed the highest narrow sense heritability among the studied
traits. Number of spike per m2 and 1000 grain weight had the maximum effect on grain yield.
Keywords
Grain yield, Recombinant inbred lines, spring wheat