With the growing global urban population and emergence of megacities, there is a huge demand for arable land to meet food reduce malnutrition. Conventional agricultural practices lead deforestation crop production intensification produce higher yield per unit area. These activities have been established negative impact on environment thereby causing soil water pollution. It important consider use vertical farming technology, which utilizes both horizontal space, efficiently uses nutrients,...

Microplastics (MPs) are plastic particles ranging from 1000 to 5000 µm in diameter, posing a growing environmental and health risk. Composting is an excellent way add nutrient-rich humus the soil boost plant development, but it also pollutes agricultural with MPs. Previous research has shown that MPs can threaten production, quality, hence they must be studied. This study examined how mixture of three MP types—polyethene (PE), polystyrene (PS), polypropene (PP)—affected greenhouse tomato...

Drought is an abiotic stress that decreases crop photosynthesis, growth, and yield. Ascorbic acid has been used as a seed preconditioning agent to help mitigate drought in some species, but not yet broccoli (Brassica oleracea var. italica). The objective was investigate the effect of ascorbic on related parameters watered drought-stressed seedlings. A 2 × 4 factorial experiment designed where (watered or drought) first factor (untreated, 0 ppm, 1 10 ppm) second factor. Positioning within...

Earlier harvest dates have become necessary for Canadian Christmas tree producers to meet international demand, though by harvesting these trees early they may experience poor needle retention. The objective of this study is understand the effect date on retention and link those changes cold acclimation. In one experiment, balsam fir with varied abscission resistance (NAR) were collected in October January monitored This was repeated 3 years. a second 45 branches each month from September...

Balsam fir (Abies balsamea) trees are commonly used as a specialty horticultural species for Christmas and associated greenery in eastern Canada United States. Postharvest needle abscission has always been problem, but is becoming an even bigger challenge recent years presumably due to increased autumn temperatures earlier harvesting practices. An understanding of postharvest physiology balsam may benefit the tree industry while simultaneously advancing our knowledge senescence conifers...

The maple industry is an economically important bioresource for both Canada and the Northeastern United States, with being world leader in products. Maple sap collected during natural freeze-thaw cycles which occur late winter early spring. Syrup yield directly dependent on has links to tree health, available nutrients, forest environment, soil components, season length, as well various other factors. trees can tolerate a wide arrange of soils, but soils woods are often left alone due...

Needle loss after harvest is a major problem for Atlantic Canada's Christmas tree and greenery industry. Ethylene signal abscission in balsam fir, but preliminary studies have suggested that the role of ethylene may be influenced by length exposure. Short-term long-term exposure experiments were conducted. Branches exposed to 24 h (short-term) or continuously (long-term) at concentrations 0 1000 ppm. The response variables measured needle retention duration (NRD), average water use (AWU),...

Several of the conifer species are increasingly adopted as Christmas trees worldwide. These have become integral parts horticultural economies North American and European countries. Postharvest characteristics such needle abscission/retention, color, fragrance rehydration abilities vary with these complex physiological traits strongly modulated by hormonal environmental factors. A large body research indicates that prevalence low temperature before harvest evokes cold acclimation responses...

Balsam fir trees are a specialty agricultural species that largely used as Christmas trees. Soil or tissue sampling is seldom performed to assess balsam nutrition needs, which can contribute over under fertilization and subsequent environmental challenges. Remote sensing determine the normalized difference vegetation index (NDVI) has had strong relationships with in other plants. This research aimed whether there relationship between NDVI fir. A random sample of 45 was selected autumn 2021...

Drought is an abiotic disturbance that reduces photosynthesis, plant growth, and crop yield. Ascorbic acid (AsA) was utilized as a seed preconditioning agent to assist broccoli (Brassica oleracea var. italica) in resisting drought. However, the precise mechanism by which AsA improves seedlings’ development remains unknown. One hypothesis works via antioxidant mechanisms oxidative stress. This study aims confirm effect of varied concentrations (control, 0 ppm, 1 or 10 ppm) on seedling growth...

Ethylene accumulation increases after harvest and culminates in needle abscission balsam fir [ Abies balsamea (L.) Mill.]. We hypothesize that water deficit induces ethylene evolution, thus triggering abscission. The purpose of this research was to investigate the role temperature humidity on postharvest presence absence exogenous link vapor pressure (VPD) fir. In first experiment, branches were exposed 30%, 60%, or 90% while maintained at 19.7 °C (VPD 1.59, 0.91, 0.23 kPa, respectively);...

Cannabis sativa L. is used as fiber, food, and medicine in several countries. Though it illegal for recreational use most of the world, there are some countries that have legalized production sale. There a lot research on cannabis, but less so storage technologies. contains high value compounds, such cannabinoids terpenoids, susceptible to degradation via light, temperature, oxygen. Several studies explored temperature industry has adjusted accordingly. However, known about oxygen-induced...

Several studies have suggested that postharvest needle retention increases in autumn, likely due to cold acclimation. But some of the dynamics phenomenon yet be studied. The objectives this study are (1) describe seasonal changes abscission, water uptake, fluorescence, and moisture content balsam fir, (2) determine relationship abscission with content, (3) link certain environmental factors. Branches were collected from 18 trees each month monitored for 12 weeks. Fluorescence, all correlated...

Our understanding of postharvest needle abscission physiology in conifers has greatly improved the last decade. Abscission is initially triggered by root detachment, which begins a cascade changes such as decreased water uptake, potential, and auxins increased membrane injury, ethylene, abscisic acid, volatile terpenes, catalytic enzymes. Needle also affected environmental factors. For example, period cold acclimation generally delays abscission. The aforementioned pieces evidence, along...

There is strong evidence that Ambiol® (a derivative of 5-hydroxybenzimazole) promotes drought tolerance in many plants; it often suggested this the result its antioxidant properties. Recent has also shown several natural antioxidants promote carrot germination under stress. Thus, was hypothesized seed preconditioning using might confer tolerance. Ambiol®, ascorbic acid, β-carotene, lutein, and lycopene were chosen as at concentrations 0.1 mg·L −1 , 1.0 10 . A treatment applied by soaking...

Balsam fir is an important horticultural crop of Atlantic Canada, valued at approximately $72 million each year being used as Christmas trees and for greenery products. However, needle abscission adversely affects the industry. A recent study has shown that retention duration (NRD) varies widely between individual clones. separate confirmed ethylene reduced NRD in balsam fir. The purpose this research was to determine if genotypic variation might be related sensitivity or production. To test...

AbstractRoot bulking, quality, and uniformity in cut-and-peel carrots (Daucus carota) are paramount for optimizing marketable yield quality. Root bulking is an ecophysiological manifestation response to inputs such as fertilizers. Understanding this ecophysioloical interaction will help optimize yield, amount of used. Three years field trials were conducted Kings County, Nova Scotia, investigate the effects varying levels nitrogen (N) fertilizer on recovery, root tissue N two varieties,...

Ambiol, a derivative of 5-hydroxybenzimidazole, has been well documented to function as growth promoter, an antistress compound, and antioxidant when applied seed preconditioning agent. However, evidence suggests that Ambiol decreases transpiration promotes root similar the phytohormone abscisic acid (ABA), leading development hypothesis drought resistance through ABA-dependent pathway. The effect 0 mg·L −1 10 was tested on wild-type tomato seedlings ( Lycopersicon esculentum Mill. var....