Ageratum houstonianum occurs as a common agricultural weed, it is managed in small and large cropping situation by tillage can contribute to soil fertility waste mulch. The aim of this study was employ the pharmacognostic taxonomic parameters evaluate leaves houstonianum. were collected, identified, air dried, pulverized subjected microscopy, micromeritics, chemomicroscopy, fluorescence, solubl...

Volatile esters impart distinct characteristics to the floral scent of many plants, and are important in attracting insect pollinators. They are also important flavor compounds in fruits. The ester benzylacetate is a major constituent of the floral scent of Clarkia breweri, an annual plant native to California. The enzyme acetyl-CoA:benzylalcohol acetyltransferase (BEAT), which catalyzes the fo...

Abstract Background Rosa damascena is an aromatic rose species, which cultivated for its essential oil, and widely used in perfume, cosmetic, pharmaceutical, food industries the world. This experiment was conducted to evaluate oil morphological variations of 26 Damask genotypes. For this purpose, effect harvest time, i.e., early morning or evening, sampling type, fresh dried petals, on content ...

This study was done to evaluate the effect of different planting arrangements (square, lozenge and rectangular) and various concentrations of potassium sulfate (K2SO4) fertilizer (0, 100, 200 and 300 kg/ha) on yield and essential oils quantitative of Calendula officinalis L., a medicinal and ornamental plant. The experiment was done as a factorial in randomized completely blocks design (R.C.B.D...

The abscission of Alstroemeria petals is the serious problem at the industry of cut flowers of this plant. In this study, cut Alstroemeria cv. Bridal flowers were pulsed with solutions containing natural essential oil carvacrol, gibberellic acid and benzyladenine (50 and 100 mg L-1), -5-sulfosalicylic acid (1 and 1.5 mM) and sucrose (5 and 10%) for 24 hours. The distilled water was used as cont...

The flower has a finite lifespan that is controlled largely by its role in sexual reproduction. Once the flower has been pollinated or is no longer receptive to pollination, the petals are programmed to senesce. A majority of the genes that are up-regulated during petal senescence, in both ethylene-sensitive and -insensitive flowers, encode proteins involved in the degradation of nucleic acids,...

to study the effect of salinity stress on some physiological attributes of four grape cultivars in vineyards of urmia in iran, an experiment was carried out as factorial arrangement in randomized complete block design with four replications. experimental factors included: grape cultivars qazel ozum, qareh shireh, tabrzeh and dizmari, and salt concentrations 0, 25, 50 and 100 mmol l-1 and locati...

alstromeria is a new cut flower in iran that due to the high performance, long life, and pretty flowers and colors diversity is highly regarded. premature yellowing of leaves in cut flowersalstromeria before petal fall is the most important factor limiting the vase life of flowers. to delay leaf yellowing and increased quality, factorial experiment based on completely randomized design carried ...

The aim of this study was to investigate the amount of protein in stratum corneum in atopic dermatitis (AD) patients and healthy controls, using tape stripping technique. Furthermore, to compare two different methods for protein assessment. Tape stripping was performed in AD patients and healthy controls to collect stratum corneum samples and subsequently analysed with two different methods: Sq...