نوع مقاله : مقاله پژوهشی

نویسنده

استادیار، دانشکده کشاورزی و منابع طبیعی، دانشگاه اردکان، اردکان، ایران

چکیده

به منظور بررسی اثر تاریخ کشت بر توده­های بومی و ژنوتیپ­های چای ترش، آزمایشی به صورت فاکتوریل در قالب طرح بلوک­های کامل تصادفی در شهرستان دلگان در سال زراعی 1398-1397 انجام گرفت. تاریخ کاشت به عنوان فاکتور اول در 5 سطح (15 اسفند، 15 فروردین، 15 اردیبهشت، 15خرداد و 10 تیر) و ژنوتیپ­ها و توده ها به عنوان فاکتور دوم در 10 سطح (توده­های جیرفت، دلگان، بمپور، ایرانشهر، نیکشهر، رودبار جنوب، سراوان و قلعه­گنج و دو واریته تجاری HA و HS-24) در نظر گرفته شدند. صفات ﻣﻮرد ﺑﺮرﺳﯽ ﺷﺎﻣﻞ قطر ساقه، وزن تر و خشک غوزه گل، وزن خشک کاسبرگ، میزان آنتوسیانین و … بودند. نتایج نشان داد اثر تاریخ کاشت بر کلیه صفات مورد بررسی در سطح 1 درصد معنی­دار بود. اثر ژنوتیپ بر تعداد روز تا آغاز غوزه­دهی، تعداد برگ، تعداد روز تا 50 درصد گلدهی و وزن خشک کاسبرگ در گیاه معنی­دار بود. اثر متقابل تاریخ کشت و ژنوتیپ بر وزن خشک کاسبرگ، آنتوسیانین، بذر در گیاه و عملکرد ماده خشک معنی­دار بود. بیشترین وزن خشک کاسبرگ در گیاه، در تاریخ کاشت 15 اردیبهشت به دست آمد. همچنین توده بومی دلگان و سراوان به ترتیب دارای بیشترین و کمترین میزان وزن کاسبرگ خشک بودند. وزن تر و خشک غوزه، تعداد برگ، قطر ساقه، میزان بذر در گیاه و میزان آنتوسیانین با وزن خشک کاسبرگ همبستگی معنی­داری داشتند. به طور کلی، تاریخ کاشت 15 اردیبهشت و توده بومی دلگان عملکرد بهتری نشان دادند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of yield and phytochemical of ten local landraces and cultivars ‎of Hibiscus sabdariffa L. in different planting dates

نویسنده [English]

  • Heidar Meftahizadeh

Assistant Professor, Faculty of Agirculture & Natural Resources, Ardakan University, Ardakan, Iran

چکیده [English]

In order to investigate the effect of planting date on local landraces and varieties of Hibiscus sabdariffa L., a factorial experiment was conducted in a randomized complete block design in Dalgan during the 2019. Planting date as the first factor in five levels (March 6, April 4, May 5, June 5 and July 01) and genotypes and cultivars as the second factor in ten levels (Jiroft, Delgan, Bampour, Iranshahr, Nikshahr, South Rudbar, Saravan and Qale Ganj and two commercial varieties HA and HS-24) were considered. The examined traits included stem diameter, fresh and dry boll weight, sepal dry weight, anthocyanin, and etc. Results showed that the effect of planting date on all studied traits was significant at 1% level. The effect of genotype was significant on the number of days to budding, leaf number, days to 50% flowering and sepal dry weight per plant. The interaction of planting date and genotypes on sepal dry weight, anthocyanin content, seed rate and biological yield were significant at 1% level. The highest sepal dry weight per plant was obtained at May 15 planting date. Also, the local landrace of Dalgan and Saravan had the highest and the lowest amount of sepal dry wieght, respectively. Fresh and dry weight of boll, number of leaves, stem diameter, plant seed and anthocyanin content were significantly correlated with sepal dry weight. As a result, May 15 planting date and local landrace of Dalgan showed higher yield.

کلیدواژه‌ها [English]

  • Anthocyanin
  • dry matter
  • flower boll
  • Dalgan
  • sepal‎
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