fa شبیه‌سازی شاخص‌های رشد و تنش خشکی ارقام کلزا در استان لرستان فیزیولوژی گیاهان زراعی Crop Physiology پژوهشي Research <span style="font-size:10pt"><span style="line-height:150%"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">کلزا پس از سویا و نخل روغنی سومین محصول روغنی مهم در جهان است. ارزیابی شاخص&shy;های رشد و تنش خشکی ارقام مختلف می&shy;تواند در معرفی رقم مناسب برای دستیابی به عملکرد بهینه کمک کند. تحقیق حاضر با استفاده از تکنیک مدل&shy;سازی <span style="background:yellow">به&shy;منظور</span> شبیه&shy;سازی شاخص&shy;های رشدی و تنش خشکی سه رقم کلزا</span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black"> (</span></span></span></span><span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">Hyola308</span></span></span><span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">، </span></span></span></span><span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">Hyola401</span></span></span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">و </span></span></span></span><span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">RGS003</span></span></span><span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">) در چهار منطقه استان لرستان انجام گرفت. برای شبیه&shy;سازی رشد و عملکرد کلزا از مدل </span></span></span></span><span dir="LTR" style="color:black">APSIM</span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">استفاده شد. <span style="background:yellow">به&shy;طور</span> </span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">میانگین در همه&shy;ی مناطق<span style="background:aqua">،</span> رقم </span></span></span></span><span dir="LTR" lang="EN-GB" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">Hyola401</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span style="background:aqua"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">بالاترین شاخص سطح برگ (7/4)، سرعت رشد محصول (1/21 گرم بر مترمربع در روز)،</span></span></span></span></span><span lang="FA" style="font-size:12.0pt"><span style="background:aqua"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black"> سرعت رشد نسبی (</span></span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="background:aqua"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">8/0 گرم بر گرم</span></span></span></span></span><span lang="FA" style="font-size:12.0pt"><span style="background:aqua"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">)</span></span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="background:aqua"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black"> و تولید ماده خشک (4/1507 گرم در مترمربع) را داشت.</span></span></span></span></span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">در مناطق مختلف<span style="background:aqua">،</span> عملکرد دانه از 9/1 تن در هکتار در الشتر تا 8/4 تن در هکتار در پلدختر <span style="background:aqua">دارای تغییرات بود</span>. همچنین <span style="background:yellow">به&shy;طور</span> میانگین<span style="background:aqua">،</span> مق</span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">دار</span></span></span></span><span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black"> عملکرد دانه برای </span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">ارقام </span></span></span></span><span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">Hyola308</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">،</span></span></span></span> <span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">Hyola401</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">و </span></span></span></span><span dir="LTR" style="font-size:11.0pt"><span style="line-height:150%"><span style="color:black">RGS003</span></span></span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">به ترتیب برابر با 9/3، 5/4 و 4 تن در هکتار بود. </span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">از نظر شاخص تنش آبی، تنش آبی در منطقه الشتر مشاهده نشد <span style="background:yellow">اما</span> در سایر مناطق</span></span></span></span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">تنش آبی</span></span></span></span> <span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">بعد از مرحله <span style="background:yellow">گل&shy;دهی</span> شروع شد و تا انتهای فصل رشد ادامه پیدا کرد. </span></span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black">الگوی خشکی مناطق و ارقام مورد بررسی نشان می&shy;دهد که در <span style="background:yellow">بیش&shy;تر</span> مناطق مدیریت آبیاری مناسب در اواخر دوره رشد کلزا می&shy;تواند به بهبود عملکرد و تولید دانه این محصول زراعی در شهرستان&shy;های مورد بررسی کمک کند. </span></span></span></span><span lang="FA" style="font-size:12.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"><span style="color:black"></span></span></span></span></span></span></span></span></span> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span style="font-size:11.0pt"><span style="background:aqua"><span style="color:black">Rapeseed is the third most important oilseed product after soybean and oil palm in the world. Evaluating the growth and drought indices of different cultivars can help introduce the optimal cultivar for a given region to achieve optimal production. The current research was conducted in four counties of Lorestan province including Aleshtar, Khorramabad, Kuhdasht, and Pol-e Dokhtar for simulating the growth and drought indices of three rapeseed cultivars (Hyola308, Hyola401, and RGS003) using modeling technique. APSIM model was used to simulate the growth and yield of rapeseed. On average across all counties, Hyola401 had the maximum LAI (4.7), CGR (21.1 g</span></span></span> <span style="font-size:11.0pt"><span style="background:aqua"><span style="color:black">m^-2 day^-1), RGR (0.8 g g^-1), and TDW (1507.4 g m^-2 day^-1). Grain yield varied from 21.1 tons ha^-1 in Aleshtar to 4.8 tons ha^-1 in Pol-e Dokhtar. Also, on average across various counties, the average grain yield for Hyola308, Hyola401, and RGS003 cultivars was 3.9, 4.5, and 4 tons ha^-1, respectively. For the water stress factor (WSF), water stress was not observed in Aleshtar, but in other counties, water stress started after the flowering stage and lasted until the maturity stage. The drought pattern indicated that in most counties, except Aleshtar, suitable irrigation management at the end of the rapeseed growth period can help to improve grain yield in the studied counties.</span></span></span><span style="font-size:11.0pt"><span style="color:black"></span></span></span></span></span><br> &nbsp; سرعت رشد محصول, شاخص سطح برگ, عملکرد دانه و شاخص تنش آب. Grain yield, Leaf area index, Relative growth rate, and Water stress index. 61 79 http://cpj.ahvaz.iau.ir/browse.php?a_code=A-10-1670-1&slc_lang=fa&sid=1 Mozhgan Sadeghi مژگان صادقی mojganmagham01@gmail.com 4072822061 100319475328460011475 No Lorestan University دانشگاه لرستان Sajjad Rahimi-Moghaddam سجاد رحیمی مقدم sajadr.moghaddam@yahoo.com 4859931777 100319475328460011476 Yes Lorestan University دانشگاه لرستان Esmaeil Mohammadi-Ahmadmahmoudi اسماعیل محمدی احمدمحمودی esmaeil.mohammadi68@yahoo.com 4610058741 100319475328460011477 No Shahid Beheshti University دانشگاه شهید بهشتی Khosro Azizi خسرو عزیزی azizi_kh44@yahoo.com 4859704970 100319475328460011478 No Lorestan University دانشگاه لرستان