بررﺳﻲ ﻫﻤﺒﺴﺘﮕﻲ ﺻﻔﺎت ﻣﻮﺛﺮ ﺑﺮ ﻋﻤﻠﻜﺮد ﻫﻴﺒﺮﻳﺪ ﻫﺎی ﺟﺪﻳﺪ ذرت داﻧﻪ ای در ﺷﺮاﻳﻂ ﺗﻨﺶ ﺧﺸﻜﻲ
پذیرفته شده برای پوستر
عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1داﻧﺸﺠﻮی ﻛﺎرﺷﻨﺎﺳﻲ ارﺷﺪ اﺻﻼح ﻧﺒﺎﺗﺎت داﻧﺸﮕﺎه ﻋﻠﻮم ﻛﺸﺎورزی و ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ ﺳﺎری
2اﺳﺘﺎد داﻧﺸﮕﺎه ﻋﻠﻮم ﻛﺸﺎورزی و ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ ﺳﺎری
3عضو ﻫﻴﺎت ﻋﻠﻤﻲ ﻣﺮﻛﺰ ﺗﺤﻘﻴﻘﺎت ﻛﺸﺎوررزی و ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ ﺧﺮاﺳﺎن رﺿﻮی
4داﻧﺸﻴﺎر داﻧﺸﮕﺎه ﻋﻠﻮم ﻛﺸﺎورزی و ﻣﻨﺎﺑﻊ ﻃﺒﻴﻌﻲ ﺳﺎری
چکیده
ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ اﻫﻤﻴﺖ ذرت، ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ رواﺑﻂ ﻣﻮﺟﻮد ﺑﻴﻦ ﺻﻔﺎت ﻣﻮﺛﺮ ﺑﺮ ﻋﻤﻠﻜﺮد داﻧﻪ، 50 ﻫﻴﺒﺮﻳﺪ ﺟﺪﻳﺪ ذرت داﻧﻪ ای در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮک ﻫﺎی ﻛﺎﻣﻞ ﺗﺼﺎدﻓﻲ ﺑﺎ 3 ﺗﻜﺮار در دو ﻣﺤﻴﻂ آﺑﻴﺎری ﻣﻌﻤﻮﻟﻲ و ﺗﻨﺶ ﺧﺸﻜﻲ آﺑﻴﺎری 14 روز ﻳﻜﺒﺎر( در ﻣﺮﻛﺰ ﺗﺤﻘﻴﻘﺎت ﺧﺮاﺳﺎن رﺿﻮی ﻣﻮرد ﺑﺮرﺳﻲ ﻗﺮار ﮔﺮﻓﺘﻨﺪ. در اﻳﻦ ﺑﺮرﺳﻲ ﺻﻔﺎت ﻣﻮرﻓﻮﻟﻮژﻳﻚ، ﻓﻨﻮﻟﻮژﻳﻚ، ﻋﻤﻠﻜﺮد داﻧﻪ و اﺟﺰای ﻋﻤﻠﻜﺮد ارزﻳﺎﺑﻲ ﺷﺪﻧﺪ. ﻧﺘﺎﻳﺞ ﺣﺎﺻﻞ از ﺗﺠﺰﻳﻪ وارﻳﺎﻧﺲ، ﻧﺸﺎن دﻫﻨﺪه ﺗﻔﺎوت ﻣﻌﻨﻲ دار ﺑﺮای ﻛﻠﻴﻪ ﺻﻔﺎت در ﻫﺮ دو ﻣﺤﻴﻂ ﻧﺮﻣﺎل و ﺗﻨﺶ در ﺳﻄﺢ اﺣﺘﻤﺎل 1% ﺑﻮد. ﺑﺮ اﺳﺎس ﻧﺘﻴﺠﻪ ﻣﻘﺎﻳﺴﻪ ﻣﻴﺎﻧﮕﻴﻦ ﻫﻴﺒﺮﻳﺪﻫﺎ ﺑﺎ روش آزﻣﻮن ﭼﻨﺪ داﻣﻨﻪ ای داﻧﻜﻦ در ﺳﻄﺢ اﺣﺘﻤﺎل 5 در ﺷﺮاﻳﻂ ﻧﺮﻣﺎل ﻫﻴﺒﺮﻳﺪ ﺷﻤﺎره 24 )11,2 ﺗﻦ در ﻫﻜﺘﺎر( و در ﺷﺮاﻳﻂ ﺗﻨﺶ ﻫﻴﺒﺮﻳﺪ ﺷﻤﺎره 1 )11,42 ﺗﻦ در ﻫﻜﺘﺎر( دارای ﺑﻴﺸﺘﺮﻳﻦ ﻋﻤﻠﻜﺮد داﻧﻪ ﻣﻲ ﺑﺎﺷﻨﺪ. اﻳﻦ آزﻣﺎﻳﺶ ﻧﺸﺎن داد ﻛﻪ در ﺷﺮاﻳﻂ ﻧﺮﻣﺎل ﻗﻄﺮ ﺑﻼل دارای ﺑﺎﻻﺗﺮﻳﻦ ﻫﻤﺒﺴﺘﮕﻲ ﻣﺜﺒﺖ و ﻣﻌﻨﻲ دار ﺑﺎ ﻋﻤﻠﻜﺮد داﻧﻪ ﻣﻲ ﺑﺎﺷﺪ درﺣﺎﻟﻴﻜﻪ ﺗﺤﺖ ﺷﺮاﻳﻂ ﺗﻨﺶ ﺧﺸﻜﻲ ﻫﻤﺒﺴﺘﮕﻲ ﺗﻌﺪاد داﻧﻪ در ردﻳﻒ ﺑﺎ ﻋﻤﻠﻜﺮد داﻧﻪ ﺑﻴﺸﺘﺮ از ﺳﺎﻳﺮ ﺻﻔﺎت ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﺑﻮد. ﺑﻨﺎﺑﺮاﻳﻦ ﻣﻲ ﺗﻮان از اﻳﻦ ﺻﻔﺎت ﺑﻪ ﺧﻮﺑﻲ ﺑﺮای ﮔﺰﻳﻨﺶ ﻫﻴﺒﺮﻳﺪ ﻫﺎی ﺑﺮﺗﺮ اﺳﺘﻔﺎده ﻛﺮد.
کلیدواژه ها
Title
Evaluation Correlation of the yield and yield components of maize hybrid (Zea mays L.) in both normal irrigation and water stress
Authors
Abstract
According to importance of maize, for detection relationship between traits affecting grain yield, 50 new corn hybrids were evaluated in a randomized complete block design with three replications in two environments with normal irrigation and drought stress (irrigation 14 days) in research center of Khorasan Razavi. In this study, morphological characteristics, phenological, yield and yield components were evaluated. The results of the analysis of variance showed significant differences for all traits in both normal and stress environments at the 1% level. Based on the results of hybrids comparison of mean by Duncan test at 5% probability level, in normal conditions 24 hybrid with 11.2 ton/hac and in stress condition,1 hybrid with 11.42 ton/hac had the highest yield. In normal conditions, ear diameter and under drought conditions, grain number per row showed the most correlation with yield. Therefore, these traits can be used for selection best hybrid.
Keywords
Correlation, Maize, Stress, Yield