فهرس المقالات Flower longevity

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  1 - Effects of sodium nitroprusside and potassium silicate on the growth and flowering of Gazania rigens (L.)
  Zahra Nasiri Elham Danaee
  Gazania, belongs to the family Asteraceae, is widely grown in gardens and other environments. The purpose of this study was to evaluated the effects of sodium nitroprusside and potassium silicate treatments on the growth and flowering of gazania. For these purposes, a c أکثر

  Gazania, belongs to the family Asteraceae, is widely grown in gardens and other environments. The purpose of this study was to evaluated the effects of sodium nitroprusside and potassium silicate treatments on the growth and flowering of gazania. For these purposes, a completely randomized design was used, with three levels of sodium nitroprusside (SNP) (25, 50 and 100 μM/l), potassium silicate (PS) at the concentration of 25, 50 and 100 mg/l and control. Some important traits such as fresh and dry weight of shoot and root, number of flowers, root volume, longest root length, plant height, cell membrane stability index, petiole carotenoid, leaf chlorophyll, protein, superoxide dismutase (SOD) and peroxidase (POD) enzyme activity and flower longevity. It was observed that plan that shoot fresh/dry weight, flower number, root length, plant height, carotenoid, leaf chlorophyll was increased under 100 mg/l PS treatment. The results suggest that the application of 50 μM/l SNP has favorable effects on the raise root fresh/dry weight, root volume, cell membrane stability index, protein, SOD and POD activity. Over the growth stage, 50 mg/l PS was found to be the best treatment to maintain flower longevity with 7.2 days. تفاصيل المقالة
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  2 - The Possibility of Replacing the Cocopeat by Palm Substrate to the Soilless Culture of Lily
  Sajad Heidari Seyed Najmadin Mortazavi Saeid Reezi Ali Nikbakht
  The quality and quantity of lily cut flowers depend mostly on the composition of growing media. To evaluate the effect of two sources of the palm peat substrate (the palm trunk: Prepared from the trunk of the date palm; the palm tree: Prepared from all parts of the date أکثر

  The quality and quantity of lily cut flowers depend mostly on the composition of growing media. To evaluate the effect of two sources of the palm peat substrate (the palm trunk: Prepared from the trunk of the date palm; the palm tree: Prepared from all parts of the date palm) on plant growth traits related to cut lily flower, a factorial experiment arranged in a completely randomized design with three replications. The impact of eleven root growing media consisted of mixtures of palm peat, cocopeat, and perlite on two cultivars (‘Tiber’ and ‘Candy Club’) were evaluated under hydroponic conditions. The results showed that the stem diameter, the time of flower emergence, buds length, leaves relative water content (LRWC), leaves and petal's electrolyte leakage (LEL and PEL), bud visual quality, and quality index criteria were as more in the ‘Candy Club’, but SPAD1 and bud diameter characters were higher in the ‘Tiber’. The highest amount of chlorophyll a, b, and total, SPAD1, SPAD3, stem diameter, bud diameter, and quality index were observed in control (80% cocopeat + 20% perlite), which was not significantly different from some palm trunk, and reused cocopeat substrates. The higher value of LRWC, bud length, and carotenoid was observed in 20% palm trunk treatment, while the higher flower longevity occurred in 60% palm tree treatment. 80% reused cocopeat treatment was showed the highest number of bulblets, SPAD2, and time to harvest. The lowest amount of LEL, harvest time, and time of flower emergence was observed in the control. Various cultivars differently respond to growing media, and palm trunk and reused cocopeat could replace a part and, or whole of expensive imported cocopeat. The palm trunk substrates were superior to the palm tree substrates, but there was a low advantage of control than the palm trunk substrate. تفاصيل المقالة
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  3 - Effect of Various Planting Substrates on Morphological and Chlorophyll Traits of Narcissus Plant
  Mehrdad Babarabie Hossein Zarei Maryam Dabbagh Atoosa Danyaei Sima Badeli
  10.22034/jchr.2018.544214
  The studied substrates included soil, soil + leaf mold, soil + cocopeat, soil + perlite, and soil + vermicompost arranged in a Randomized Complete Block Design with three replications. The results showed that the highest germination speed (18) was related to soil and th أکثر

  The studied substrates included soil, soil + leaf mold, soil + cocopeat, soil + perlite, and soil + vermicompost arranged in a Randomized Complete Block Design with three replications. The results showed that the highest germination speed (18) was related to soil and that the highest flower fresh weight (9.25) and flower diameter (52.3) were related to soil + perlite. Substrates did not impact floret number, root length, and flowering time significantly. The highest flower longevity (7 days) was observed in soil + leaf mold.  Results of analysis of variance did not display the significant influence on stem length, root length, floret number, leaf number and chlorophyll and flowering time. The results showed that the addition of materials such as vermicompost to soil could improve the important traits of Narcissus flower, including flower life, germination rate and stem diameter, thus reducing the use of chemicals. تفاصيل المقالة