Effect of Water Deficit on Flowering and Growth Characteristics of Zinnia elegans
محورهای موضوعی : مجله گیاهان زینتی
Kürşad Demirel
1
(Çanakkale Onsekiz Mart University, Faculty of Architecture and Design, Department of Landscape Architecture, 17020, Çanakkale, Turkey)
Gökhan Çamoğlu
2
(Çanakkale Onsekiz Mart University, Faculty of Agriculture, Department of Agricultural Structures and Irrigation, 17020, Çanakkale, Turkey)
Arda Akçal
3
(Çanakkale Onsekiz Mart University, Faculty of Agriculture, Department of Horticulture, 17020, Çanakkale, Turkey)
Hakan Nar
4
(Çanakkale Onsekiz Mart University, Faculty of Agriculture, Department of Agricultural Structures and Irrigation, 17020, Çanakkale, Turkey)
Fatih Kahriman
5
(Çanakkale Onsekiz Mart University, Faculty of Agriculture, Department of Field Crops, 17020, Çanakkale, Turkey)
Levent Genç
6
(Çanakkale Onsekiz Mart University, Faculty of Architecture and Design, Department of City and Regional Planning, 17020, Çanakkale, Turkey)
کلید واژه: Water stress, Irrigation, Ornamental plant, Seasonal flowers,
چکیده مقاله :
Water resources have been decreasing in recent years due to global warming, thereby requiring more studies to determine the effect of limited water on plants. This study aimed to determine the effect of different irrigation levels on the flowering and growth characteristics of zinnia plant (Zinnia elegans). The research was carried out in the Plant Production Research Center of the Faculty of Agriculture at Çanakkale Onsekiz Mart University, Turkey. For the study, zinnia plants were grown in pots under field conditions and 4 different irrigation treatments were created where 100% (I-100 / control), 75% (I-75), 50% (I-50) and 25% (I-25) decreasing moisture was applied and the soil moisture was monitored by sensors. Data were subjected to variance and PCB-Biplot analyses. Results showed significant differences among irrigation treatments according to measured traits. At the end of the study, irrigation water amount and plant water consumption values were found to be 28.1-142.8 mm and 33.9-144.4 mm, respectively. Water stress was found to have a negative effect on the growth and agronomic characteristics of zinnia. However, it was observed that the quality of flowers is not affected even if plant growth is negatively affected by a 25% water shortage.
منابع آب در سال­های اخیر روبه کاهش هستند و دلیل آن گرمایش زمین است. به­همین دلیل نیاز به مطالعات بیشتر در خصوص تعیین اثر محدودیت آب روی گیاهان وجود دارد. این مطالعه با هدف تعیین اثر سطوح آبیاری مختلف روی گلدهی و خصوصیات رشد آهار انجام شده است. این پژوهش در مرکز تحقیقات حفاظت گیاهی در دانشکده کشاورزی دانشگاه چاناک کاله ان سکیز مارت در ترکیه انجام شد. بدین­منظور گیاهان آهار در گلدان خارج از گلخانه در چهار تیمار آبیاری مختلف 100 درصد (I-100 شاهد)، 75 درصد (I-75)، 50 درصد (I-50) و 25 درصد (I-25) کشت شدند و کاهش رطوبت خاک به­وسیله حسگرها پایش شد. داده­ها و اختلاف واریانس با PCB-Biplot آنالیز شدند. نتایج نشان داد که تفاوت معناداری در تیمارهای مختلف آبیاری در صفات اندازه­گیری شده مشاهده شد. در پایان آزمایش مقدار آب آبیاری و مقدار مصرف آب گیاه به­ترتیب 8/142- 1/28 و 4/144-9/33 میلی­متر بدست آمد. تنش آبی اثر منفی روی رشد و خصوصیات زراعی آهار گذاشت. البته، مشاهده شد که کیفیت گل­ها حتی در شرایط کاهش آب تا 25 درصد، علیرغم کاهش رشد بوته، کاهش نشان نداد.
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