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شیر اسماعیلی, غلامحسین, مقصودی مود, علی اکبر, خواجویی نژاد, غلامرضا, عبدالشاهی, روح الله. (1396). بررسی واکنش ارقام گلرنگ به تیمار های آبیاری در کشتهای بهاره و تابستانه. سامانه مدیریت نشریات علمی, 30(3), 36-52. doi: 10.22092/aj.2018.116387.1221
غلامحسین شیر اسماعیلی; علی اکبر مقصودی مود; غلامرضا خواجویی نژاد; روح الله عبدالشاهی. "بررسی واکنش ارقام گلرنگ به تیمار های آبیاری در کشتهای بهاره و تابستانه". سامانه مدیریت نشریات علمی, 30, 3, 1396, 36-52. doi: 10.22092/aj.2018.116387.1221
شیر اسماعیلی, غلامحسین, مقصودی مود, علی اکبر, خواجویی نژاد, غلامرضا, عبدالشاهی, روح الله. (1396). 'بررسی واکنش ارقام گلرنگ به تیمار های آبیاری در کشتهای بهاره و تابستانه', سامانه مدیریت نشریات علمی, 30(3), pp. 36-52. doi: 10.22092/aj.2018.116387.1221
شیر اسماعیلی, غلامحسین, مقصودی مود, علی اکبر, خواجویی نژاد, غلامرضا, عبدالشاهی, روح الله. بررسی واکنش ارقام گلرنگ به تیمار های آبیاری در کشتهای بهاره و تابستانه. سامانه مدیریت نشریات علمی, 1396; 30(3): 36-52. doi: 10.22092/aj.2018.116387.1221

بررسی واکنش ارقام گلرنگ به تیمار های آبیاری در کشتهای بهاره و تابستانه

پژوهش های کاربردی زراعی
مقاله 3، دوره 30، شماره 3 - شماره پیاپی 116، مهر 1396، صفحه 36-52    اصل مقاله (482.66 K)
نوع مقاله: مقاله پژوهشی
شناسه دیجیتال (DOI): 10.22092/aj.2018.116387.1221
نویسندگان
غلامحسین شیر اسماعیلی* 1؛ علی اکبر مقصودی مود2؛ غلامرضا خواجویی نژاد2؛ روح الله عبدالشاهی2
1دانشجوی دکترا، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران
2دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران
چکیده
چکیده
نوسانات بارندگی و دسترسی به منابع آب زیرزمینی در مناطق خشک و نیمه‌خشک، عملکرد و اجزای عملکرد محصولات زراعی را به‌ویژه در کشت‌های بهاره و تابستانه تحت تأثیر قرار می‌دهد. گل‌رنگ یکی از گیاهان روغنی بومی ایران است که نسبت به خشکی مقاوم است. این آزمایش به‌صورت کرت‌های دو بار خردشده و در قالب طرح بلوک‌های کامل تصادفی با چهار تکرار اجرا شد. فاکتور اصلی شامل دو تاریخ کشت بهاره و تابستانه، فاکتور فرعی شامل سه تیمار آبیاری (شاهد، قطع آبیاری در شروع گلدهی و قطع آبیاری از دوره پر شدن دانه) و فاکتور فرعی فرعی شامل نه رقم گلرنگ بود. تاریخ کاشت بهاره نسبت به تابستانه در تمامی صفت‌های اندازه‌گیری شده اختلاف معنی‌دار داشت. عملکرد دانه در تاریخ کشت فروردین‌ماه 3070 کیلوگرم در هکتار بود که نسبت به تیرماه، 62 درصد افزایش نشان داد. تیمار آبیاری بر ارتفاع، تعداد دانه در غوزه و عملکرد دانه اثر معنی‌دار داشت و قطع آبیاری باعث کاهش تعداد دانه در غوزه و عملکرد گردید. عملکرد دانه در تیمارهای آبیاری در دوره پر شدن دانه و دوره گلدهی نسبت به تیمار شاهد به ترتیب 21 و 54 درصد کاهش نشان داد. در بین ارقام، صفه و گلدشت دارای بالاترین عملکرد دانه بودند و در تیمار قطع آبیاری در شروع گلدهی بین ارقام اختلاف معنی‌داری مشاهده نشد. به‌طورکلی رقم‌های ایرانی نسبت به ارقام مکزیکی توانایی بهتری برای مقاومت به تنش و تولید عملکرد دانه بالاتر داشتند.
کلیدواژه‌ها
زمان کاشت؛ تنش آب؛ دانه روغنی؛ عملکرد دانه؛ تعداد غوزه
عنوان مقاله [English]
Responses of Safflower cultivars to irrigation treatments in spring and summer cropping seasons
نویسندگان [English]
Gholamhosein Shir esmaeili1؛ Aliakbar Maghsoudi mood2؛ Gholamreza Khajouei nezhad2؛ Rouhollah Abdolshahi2
1Ph.D Student, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
2Associate Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
چکیده [English]
Introduction
Safflower (Carthamus tinctorius L.) is an oil-producing plant, which is considered to be a valuable source of seed oil due to its high oil quality and relatively high resistance to salinity and water-deficit conditions (Mozaffari and Asadi, 2006). In the regions where annual precipitation is low and also the distribution of rainfall is unpredictable, drought is the most important environmental stress that adversely affects crop plant performance. Identifying tolerant cultivars with high yield potential is of paramount significance for researchers under the condition with ever-decreasing rainfall, elevated air temperature and increased hot weather. Delayed sowing in the spring cropping of safflower causes accelerated development, reduced vegetative growth and decreased yield and yield components of the plant (Zimmerman, 1972). The objective of this work was to determine suitable cultivars for the spring and summer cropping seasons under water-shortage conditions.

Materials and Methods
This experiment was carried out as split-split plot in a randomized complete block design with four replications at agricultural research station of Kabutarabad in the 2016 growing season. The main factor consisted of two spring and summer sowing dates, the sub-factor comprised of three irrigation treatments (Full Irrigating from sowing to plant maturity as control, irrigation till the beginning of flowering and irrigation till the seed filling period) and the sub-sub factor included nine safflower cultivars: Sofeh, Goldasht, Sina, Faraman, and Mexican cultivars of Mec117, Mec295, Mec18, Mec11 and Mec7. Following seed sowing, and the initial irrigation for plant emergence and establishment, the plots were irrigated after 70 mm cumulative evaporation from evaporation pan class A and cessation of irrigation for plots occurred based on plant growth stage and the irrigation termination treatments.

Results and Discussion
The results indicated that there was a significance difference between spring and summer planting dates for all the measured traits. Plant height, plant dry matter at flowering stage, boll numbers, number of seeds in boll, seed weight and seed yield decreased in summer cropping as compared with spring cropping. There was no significant difference in plant dry matter at flowering stage, boll numbers and seed weight under irrigation treatments but other traits showed significant differences. The highest grain yield was obtained when the cultivars received full irrigation (control treatment). Termination of irrigation in the grain-filling period and at flowering reduced grain yield by 25 and 45% as compared to the control. Average seed yield of cultivars in the spring planting was 62% higher than summer planting. The highest seed yield in spring planting was obtained from Sofeh and Goldasht and Mec117 cultivars. But, the greatest seed yield in summer planting was obtained from Sofeh, Goldasht, Sina and Faraman cultivars (The cultivars are mentioned in descending order of yield). Mexican cultivars performed best in spring planting, however, they experienced a significant decline in their seed yield in summer planting. Crop seed yield is reduced when sensitive growth stages e.g. flowering and pollination coincides with adverse environmental conditions such as high temperature (Emami et al., 2011). The observed yield reduction in the safflower cultivars in the second planting date (summer season) is attributable to decreased duration of rosette and vegetative stages. This was due to rapid transition from vegetative to reproductive stage caused by environmental stressors, in particular, high temperature, which prevented the plant from achieving adequate yield- forming components.
Conclusion
In general, Iranian cultivars were more resistant to stress and had higher grain yield than Mexican cultivars. Iranian cultivars Sofeh, Sina and Goldasht are suitable cultivars for planting under normal and drought stress conditions for spring and summer cropping seasons.
Keywords
Planting date, Water stress, Oil crop, Seed yield, Boll number
References
Mozaffari K., and Asadi, A.A. 2006. Relationships among traits using correlation, principal components and path analysis safflower mutants sown in irrigated and drought stress condition. Asian Journal of Plant Sciences. 5 (6): 977-983.

Emami, T., Naseri, R., Falahi, H. and Kazemi, E. 2011. Response of yield, yield component and oil content of safflower (CV Sina) to planting date and plant spacing on row in rainfed conditions of western Iran. American- Eurasian Journal of Agricultural and Environmental Sciences. 10(10): 947-953.


Zimmerman, L. H. 1972. Effect of temperature and humidity stress during flowering on safflower (Carthamus tinctorius L.). Crop Science. 12: 637-640.
کلیدواژه‌ها [English]
Planting date, Water stress, Oil crop, seed yield, Boll number
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