In order to study on different methods of application of polyamines (putrescine, spermine, spermidine) on some morphological, physiological, enzymatic and vase life of Rosa hybrida cv. ‘Dolce Vita’, experiment was conducted as a factorial experiment in a completely randomized design with 32 treatments, 3 replicates and each replication containing 5 vases, a total of 480 vases were executed. Fir...

Plant essential oils from 20 plant species were tested for their insecticidal activity against larvae of Lycoriella ingenua (Dufour) (Diptera: Sciaridae) by using a fumigation bioassay. Good insecticidal activity (>90%) against larvae of L. ingenua was achieved with essential oils of caraway seed Carum carvi (L.)], lemongrass [Cymbopogon citratus (D.C.) Stapf.], mandarine (Citrus reticulate Bla...

to study the effect of sucrose and calcium chloride on the quality and longevity of cut flower of rose cv. varlon, this experiment was conducted at the faculty of agriculture, zanjan university, zanjan, iran, in 2007. cut flowers were received from mahallat ornamental plants and flowers research station. experimental factors included: sucrose at four levels (0, 40, 80 and 100 mg/l) and calcium ...

In this study, we show that female African malaria mosquitoes Anopheles gambiae starved for 3-5 h start to engorge on sucrose at concentrations between 50 and 75 mmol l(-1). Half of the feeding response (ED50) is reached at 111 mmol l(-1) and the maximum response (0.4 mg) occurs at 250 mmol l(-1). Two receptor cells in a trichoid sensillum of the labellum, called the 'sucrose' and 'water' neuro...

iran is one of the main date (phoenix dactylifera) producing countries in the world. however, little information is available on the pollen viability and favorable storage conditions of iranian male date cultivars. this study was conducted to estimate the best in vitro pollen germination of three male date palm cultivars, `ghanami’, `samsmavi’ and `gheibani’ using various doses of boric acid (0...

Renanthera imschootiana Rolfe is an endangered tropical epiphytic orchid that is threatened with extinction due to over-collection and the loss of suitable habitats. In vitro propagation is a useful way to mass produce plants for re-establishment in the wild and for commercial propagation. Seeds collected 150 days after pollination (DAP) were the optimum stage for in vitro culture. Seed germina...

This study was carried out in order to determine the effects of boron and cold stress on pollen germination of almond hybrids in vitro culture, two different media including the absence and presence of boron (0 mg/l, and 100 mg/l) in 10% sucrose and 1% agar medium at 24°C in dark conditions. The results showed that different treatments had a significant effect on the germination percentage. The...

<i>Verbascum scamandri</i> Murb. known as "Kazdağı Mullein" is an endemic species in Türkiye and classified endangered (EN) species. The aim of this study to establish efficient callus culture for <i>V. analyze the amounts verbascoside, luteolin, aucubin metabolites calli samples. Leaf explants were cultured on MS medium with cytokinin (BAP, Kin, 0, 0.5, 1, 2, 3 mg/L) auxin (N...

Light emitting diodes (LEDs) are potential light sources for in vitro plant cultures. Here, axillary blackberry shoots were grown MS medium with indole-3-butyric acid (1 mg L−1), naphthalene acetic (0.5 and sucrose supplementation (0–60 g L−1) the cultures incubated under four treatments: three LED treatments (blue + red (2:1 spectral ratio), blue (1:2), cool warm white (1:1)) a standard flores...

Narcissus is one of the very popular flowers among Iranians. This flower has a short life. To investigate the increasing of vase life of cut Narcissus, sour orange fruit extract in concentrations of 2.5, 4, 5.5 and 7 ml L-1 and sucrose in concentrations of 3, 4, 5 and 6% were used. In addition, distilled water was used as a control treatment. In this experiment, characters of vase life and perc...