بررسی جوانه زنی و رشد قلمه ها و آنالیز تصویر در چند رقم رز تحت تاثیر عامل دمایی

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه باغبانی، دانشکده کشاورزی، دانشگاه تبریز

چکیده

       دو آزمایش در ارتباط با بررسی جوانه­زنی و رشد قلمه­ها در چند رقم رز طراحی گردید. درآزمایش اول تیماردمایی 1، 3، 5.5 و 8 درجه سلسیوس و عامل لایه شاخه شامل لایه بالایی، لایه میانی، لایه پایینی روی رشد و جوانه­زنی قلمه های گیاه­رز در قالب طرح بلوک­ کامل تصادفی، با 12 ترکیب تیماری،4 تکرارودرهرتکرارسه نمونه بررسی گردید. در طول آزمایش، صفات رویشی شامل زمان لازم تا جوانه زنی، قطر جوانه، طول جوانه، تعداد برگ و  وزن تر مورد بررسی قرار گرفتند. نتایج آزمایش اول نشان داد عامل دما و لایه شاخه هردو در صفات زمان لازم تا جوانه زنی و طول و قطر جوانه رشد کرده تاثیر معنی دار داشتند، بطوریکه بیشترین طول و قطر جوانه در قلمه­های حاصل از لایه میانی مشاهده گردید. کوتاهترین زمان لازم تا جوانه زنی در لایه بالایی رویت شد. در دمای 1 درجه سلسیوس مدت زمان لازم تا جوانه زنی بیشترین بود در صورتیکه طویلترین رشد جوانه در دمای 3 درجه سلسیوس بدست آمد. آزمایش دوم درقالب طرح بلوک کامل­تصادفی با دوفاکتور که فاکتور اول شامل 5 تیمار دمایی(11- ،0، 5، 10، 25درجه سلسیوس) و فاکتور دوم 4 رقم و گونه رز (R. hybrida' Blue moon', R. damascene, R. hybrida 'Tuscany superb', R. hybrida 'Fiesta',) اجرا گردید. این آزمایش مشخص کرد بهترین مولفه برای تشخیص اثر دما در صفات رنگی برگ، توجه به تغییرات رنگ های سبز و قرمز می­باشد. در مقایسه با رنگ آبی این دو رنگ قابلیت بالایی در تشخیص زودهنگام و سریع تنش های ناشی از تغییرات دمایی را نشان دادند.
 

کلیدواژه‌ها


عنوان مقاله [English]

Investigating Growth and Budding of Cuttings and Image Analysis in Some Rose Cultivars Affected by Temperature Factor

نویسندگان [English]

  • Sonia Dolatpanah
  • Mansoor Matloobi
  • Rahim Naghshband Hasani
چکیده [English]

Two experiments were conducted to evaluate budding strength of cuttings and imaginary differences of rose leaves as a result of different temperature treatments. In the first trial four different temperatures (1, 3, 5.5 and 80c) along with 3 different layers of stems from which cuttings had been taken were used in a factorial randomized complete block design. The experiment was composed of 12 treatments, 4 replications each one containing 3 samples. Budding features of cuttings which were measured and recorded were: days to budding, sprout diameter and length, number of leaves and sprout fresh weight. Results of this experiment indicated that both temperature and stem layer affected days to budding, sprout length and diameter significantly with middle layer showing maximum sprout length and diameter when compared with the two other layers. To reach the budding stage the top layer was the fastest. Second experiment was designed using two factors in which 5 levels of temperature (-11, 0, 5, 10, 250c) were used to treat leaf samples taken from 4 different cultivars and species of roses (Rosa hybrida 'Blue moon', R. damascene, R. 'Tuscany superb', R. 'Fieta') based on factorial randomized complete block design. According to the results it was determined that green and red color parameters of leaf images could be used as a scale to evaluate the effect of temperature variations on rose leaf. Comparing with blue color, these two colors showed high potential in quick and earlier detection of stresses imposed by environmental temperature variations.
 

کلیدواژه‌ها [English]

  • ose Cultivars
  • Temperature Factor
  • Budding
  • Image Analysis
  • Stem Layer
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