ABSTRACT Humic acid (HA) might benefit plant growth by improving nutrient uptake and hormonal effects. The effect of HA on growth, macro—and micronutrient contents, postharvest life gerbera (Gerbera jamesonii L.) cv. ‘Malibu’ were examined. Different levels humic (0, 100, 500, 1000 mg/L) applied to solution. Root increased at mg/L incorporated into the Macro- contents leaves scapes including nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn)...

Sage (Salvia officinalis) has been an important medicinal plant since antiquity. Here, we aimed to determine the optimum light intensity for S. officinalis growth by quantifying effects of different shade treatments on morphology, chlorophyll and carotenoid content, photosynthetic capacity in a semi-arid region Iran. Plants were grown 5 months under full sunlight (0% shade) as well 30%, 50%, or 70% levels applying treatments. While leaf size was greatest 50% level, leaves seedlings smallest....

Arizona Cypress is one of the drought-resistant, aromatic, and aesthetically pleasing trees having several pharmacological uses. Certain microorganisms contribute to secondary metabolism synthesis bioactive compounds in aromatic medicinal plants. This study aimed determine photosynthetic pigments, total phenolic content, antioxidant capacity, essential oil composition cypress under two irrigation regimes microbial inoculations. We established a factorial experiment with three mycorrhizae...

In recent years, applying humic acid (HA) has been common in turfgrass management. A series of experiments were conducted to evaluate the effect HA on qualitative and quantitative characteristics "Speedygreen" perennial ryegrass (Lolium perenne L.). Different concentrations (0, 100, 400, 1000 mg L−1) applied monthly as foliar application. Results showed that leaf phosphorus (P), potassium (K), zinc (Zn) content, fresh dry weight, chlorophyll root weights not affected by HA. Meanwhile,...

Damask rose (Rosa damascena Mill.) is an aromatic industrial plant with different applications. Selection of cultivars high-value metabolites such as flavonoids—with acceptable yields—can lead to elite for mass propagation in various industries. A field experiment was carried out a randomized complete block design (RCBD) evaluate and some yield-related morphological data. In the present investigation, first time 13 flavonoid components nine Iranian damask were compared using LC-MS/MS. As...

Plants and their accompanying microorganisms growing in contaminated sites with long-lived gamma-emitting radionuclides may be affected by radiation stress. The present study aimed to investigate the effects of gamma on symbiotic relationship between Epichloë endophyte Festuca arundinacea plant along radio-sensitivity a pair clones tall fescue (E+) without (E−) exposed different doses including 25, 50, 75, 100, 150, 200, 300, 400 Gray (Gy) from Cobalt-60 source. Both irradiated...

Desert wheatgrass ( Agropyron desertorum L.), tall elongatum and crested cristatum L.) are native cool-season grass species that exhibit potential as a low-input turfgrass. An increased understanding of the biochemical physiological responses genotypes to salt stress conditions is important for developing with enhanced tolerance salinity. The objective this study was characterize antioxidative properties in 20 Iranian observe their salinity during seed germination seedling growth stage. A...

Arbuscular mycorrhizal (AM) symbiosis confers numerous benefits to host plants, including improved plant growth and nutrient acquisition efficiency. An experiment was conducted evaluate the effect of AM fungi ( Glomus intraradices G. mosseae ) in presence humic acid (HA) spray treatments (0, 100, 400, 1000 mgL −1 on (N, P, K, Fe, Zn) uptake, visual quality chlorophyll content, root architecture, colonization perennial ryegrass Lolium perenne L.) Speedygreen mixture. The results revealed that...

Flower quality loss, especially short postharvest life, is a major problem in gerbera production. An experiment was conducted to determine how different combinations of humic substances (HS) affect gerbera. Humic acid (HA) and fulvic (FA) applied nutrient solutions six including control (nutrient solution only), 80 mg L−1 HA + 20 FA, 60 40 100 50 FA. The HS application enhanced root architecture, content, number harvested flowers, vase life. Fifty (50) FA extended life by 8 days increased...

Core Ideas A physiological mechanism for drought resistance in wheatgrass is proposed. Analysis of antioxidant enzyme activity during germination under stress. Germination, osmotic adjustment, and activities Osmotic stress one the major environmental stresses that limits plant growth seed many areas world. The purpose this research was to determine degree range tolerance 20 ecotypes identify might be potentially useful arid semiarid regions. We used a completely randomized factorial design...

Abstract A hydroponics experiment was conducted to study the effect of humic acid (HA) on gerbera (Gerbera jamesonii L.) cv. Malibu in different diluted nutrient solutions. The HA (500 mgL−1) added a solution (NS) with two dilution levels NS, ½ NS and ¼ full-strength (NSc). application compensated for nitrogen, magnesium, iron deficiency NS. Nutrient utilization efficiency (NUTE) nitrogen shoot decreased that Fe increased compared when applied. number harvested flowers per plant greatest NSc...

Lisianthus is one of the most important specialty cut flowers in world. Various greenhouse conditions and inadequate evapotranspiration can disturb transport calcium impair its uptake by plants. This study aimed to compare effects amino acid chelates chloride (CaCl 2 ) on flower production, quality, postharvest life ‘Cinderella Lime’ lisianthus. Therefore, nutrient solutions containing (1%) were prepared using equal concentrations lysine, threonine, or methionine. The control treatment was a...