نتایج جستجو برای: leaf thickness
تعداد نتایج: 193552 فیلتر نتایج به سال:
the anatomical and epidermal characteristics, as well as the physiological response, of 'colombia' ecotype cape gooseberry plants treated or untreated with foliar applications of kaolin at 2 irrigation levels (well-irrigated plants vs. water-stressed plants) were evaluated. relative water content (rwc), stomatal density, and chlorophyll index were reduced under water stress. water stress increa...
Leaf vein traits are implicated in the determination of gas exchange rates and plant performance. These traits are increasingly considered as causal factors affecting the 'leaf economic spectrum' (LES), which includes the light-saturated rate of photosynthesis, dark respiration, foliar nitrogen concentration, leaf dry mass per area (LMA) and leaf longevity. This article reviews the support for ...
Abstract The results showed that foliar fertilization with potassium silicate had a clear effect on increasing the thickness of upper and lower epidermal cuticle layer increased leaf, as after first spray reached 22 microns 11 microns, leaf 194.8 microns. As for second spray, 198.66, 25.33, 16.66 third was characterized by an increase in compared to 206.66 epidermis 28.33 19 respectively. Compa...
Bemisia tabaci is one of the most devastating pests in tomato greenhouse production. Insecticide resistance management for B. tabaci requires a novel approach that maximizes non-chemical methods for pest control. The aim of this study was to test the effects of rootstocks on B. tabaci populations in hydroponically grown tomato plants. In order to contribute to the better understanding of the me...
Seedling recruitment limitations create a demographic bottleneck that largely determines the viability and structure of plant populations and communities, and pose a core restriction on the colonization of novel habitat. We use a shadetolerant, invasive grass, Microstegium vimineum, to examine the interplay between seed and establishment limitations – phenomena that together determine recruitme...
BACKGROUND AND AIMS Specific leaf area (SLA), a key element of the 'worldwide leaf economics spectrum', is the preferred 'soft' plant trait for assessing soil fertility. SLA is a function of leaf dry matter content (LDMC) and leaf thickness (LT). The first, LDMC, defines leaf construction costs and can be used instead of SLA. However, LT identifies shade at its lowest extreme and succulence at ...
We investigated leaf physiological traits of dominant canopy trees in four lowland Panamanian forests with contrasting mean annual precipitation (1,800, 2,300, 3,100 and 3,500 mm). There was near complete turn-over of dominant canopy tree species among sites, resulting in greater dominance of evergreen species with long-lived leaves as precipitation increased. Mean structural and physiological ...
To evaluate the agro-biological traits and select promising populations of alfalfa under pedoclimatic conditions, field experiments were carried out in two locations Lithuanian Research Centre for Agriculture Forestry (western Lithuania 55°70′ N, 21°49′ E central 55°23′ 23°51′ E). Eleven established acidic soil with a pH 4.0 (experimental site I) neutral 7.0 II). The productivity traits: fresh ...
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