Effect of plant age and methods of stem treatment on the quality of cut roses

Document Type : Research Paper

Authors

1 Department of Horticultural Science, University of Tabriz, Tabriz, Iran

2 Department of Horticulture Science, University of Shiraz, Shiraz, Iran

3 Department of Horticulture, University of Zanjan, Zanjan, Iran

Abstract

Cut roses are always valued for their beautiful and outstanding flowers. Apart from the physiological and nutritional features of the plants, there are many other factors which influence the marketable quality of cut roses over the entire period of production phase. Among them we tried to understand how plant age and different methods of stem treatment can modify cut stem physical properties. To do this, the effect of newly stented plants beside the three-year old stented plants combined with four stem training methods were evaluated for their cut flower qualities. The results showed that the time to bud break was shorter (seven days) for young plants while it reached to about 15 days in old plants particularly for the third and fifth buds. In general, young plants performed better for some quality traits such as higher stem length and higher flower and stem diameter. When shoots were bent over the fifth bud, the highest shoot weight and leaf area were produced in the new growing cut flowers. It was concluded that young plants tended to increase their foliage volume by producing more leaves on relatively vigorous shoots, thereby they increased their marketable stem quality.
 

Keywords

Article Title [Persian]

تاثیر سن گیاه و روش­های تیمار شاخه درکیفیت گل رز بریدنی

Author [Persian]

  • منصور مطلوبی 1
Abstract [Persian]

 
رزهای بریدنی همیشه به عنوان یک گل زیبا و جذاب مورد توجه بوده­اند. جدا از عوامل تغذیه­ای و فیزیولوژیکی، عوامل زیاد دیگری نیز کیفیت گل­های بریدنی تولیدی را در کل دوره تولید تحت تاثیر قرار می­دهند. در این آزمایش، نقش و تاثیر سن گیاه و روش­های متفاوت تیمار شاخه روی مشخصات فیزیکی و ظاهری گل­های تولید شده مورد مطالعه قرار گرفت. برای این منظور سن گیاه به صورت گیاهان جوان تازه تکثیر شده به روش تیل پیوندی و گیاهان سه ساله تکثیر شده به همان روش به همراه چهار روش متفاوت تربیت شاخه بررسی شد. نتایج حاصل نشان داد که زمان لازم تا رویش جوانه برای گیاهان جوان کوتاه­تر بود در صورتی که این زمان در گیاهان مسن به ویژه تیمارهایی که روی جوانه­های سوم و پنجم هرس شدند، طولانی­تر بود و به حدود 15 روز رسید. به طور کلی گیاهان جوان از لحاظ برخی مشخصات کیفی و بازارپسندی مانند طول شاخه، کیفیت گل و قطر شاخه نسبت به گیاهان مسن برتر بودند. زمانی که شاخه­های بالای جوانه پنجم هرس شدند، سطح برگ شاخه و وزن شاخه افزایش یافت. در نهایت، گیاهان جوان با تمایل به تولید حجم بیشتر برگ روی شاخه­های قوی­تر، صفات بازارپسندی بهتری را از خود نشان دادند.
 

Keywords [Persian]

  • تیمار شاخه
  • خمش شاخه
  • رز بریدنی
  • سن گیاه
  • کیفیت گل

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Journal of Plant Physiology and Breeding
Volume 8, Issue 1
June 2018
Pages 1-9

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