seedling Articles
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Amelioration of Mn toxicity by Brassinosteroids in Brassica juncea L.
The effects of 28-homobrassinolide (28-homoBL) on protein content and antioxidative enzyme activities in 7-days old Brassica juncea L. seedlings were studied. The seeds pre-treated with different concentrations of 28-homoBL were germinated in Petriplates supplied with various concentrations of heavy metal (Mn). The activities of superoxide dismutase, catalase, ascorbate peroxidase, guaiacol ...
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Effect of aluminum and chromium on the growth and germination of mesquite (Prosopis juliflora swartz.) DC.
Abstract: Prosopis seeds were grown under controlled environment in solution of aluminum and chromium at different concentration alone as well as combined together. The effect of these metals was studied on seed germination, root length, shoot length, seedling length and dry biomass. Aluminum and chromium alone, and combined together showed no effects on germination and dry biomass. Chromium ...
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A dynamic model of cotton emergence based on the thermal dependence of malate synthase
Cotton (Gossypium hirsutum L.) is frequently planted when temperatures are not optimal for germination and emergence. Delayed emergence, a common contributor to diminished plant performance later in the season, is often related to nonoptimal temperatures. Improvement of cotton performance requires knowledge of the source, pattern, and magnitude of thermal limitations on seedling metabolism. In ...
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Talk about the Benefits of the Nursery Seedlings
Today I want to talk to you about the benefits of the plug seedlings of the nursery seeding planter. Everyone knows that the plug planter is relatively common in our lives. Using it can bring us many benefits. Below, the editor will briefly explain to you what are the advantages of the tray planter? 1. The main substrates for plug seedlings are peat soil, vermiculite, perlite, and other light ...
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Effect of aluminum and chromium on the germination and growth of two Vigna species
Abstract: The study deals with the effect of metal toxicity (aluminum, chromium and combination of both the metals) on seed germination, root length, shoot length, seedling length and dry biomass of Vigna radiata and V. sinensis. Chromium adversely affected the seedling by significantly reducing the growth whereas aluminum did not show such effect in both the species. Percentage of germination ...
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Germination and seedling growth of corn (Zea mays l.) under varying levels of copper and zinc
The heavy metal tolerance in corn (Zea mays L.) var. ‘Neelum’ was assessed at germination and seedling growth after having subjected it to different concentrations of CuSO4 and ZnSO4. Germination was not affected by any of the metal tested, whereas initial growth was strongly inhibited by increasing concentrations of ZnSO4. Seedlings developed toxicity symptoms in the presence of both metals but ...
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Phytotoxic effect of aluminum and chromium on the germination and early growth of wheat (Triticum aestivum) varieties Anmol and Kiran
A greenhouse experiment was conducted to determine the phytotoxic effect of aluminum and chromium on the germination and early growth of two wheat (Triticum aestivum) varieties Anmol and Kiran. Seed were treated with 40, 80, 120 and 160 ppm of aluminum and chromium solution individually and in combined form. Observations were made on seed germination, root, shoot and seedling length, and dry ...
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Green tea catechins applied to susceptible hosts inhibit parasitic plant attachment success
Parasitic plants utilize cell wall degrading enzymes (CWDEs) to penetrate their host plant and attach to host vasculature. Inhibition of CWDEs may confer resistance on susceptible hosts, offering a strategy for parasitic plant control. Here, exogenous application of green tea catechins, which inhibit pectin methylesterase (a CWDE), was used to delay parasitic plant attachment. Texas bluebonnet ...
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Our Spacer: a versatile solution for hydroponic crops
In vegetable crops in particular, there are a number of tried and tested advantages to using our Spacers in hydroponic farming. They include providing a means of lifting the substrate away from the drainage stream whilst providing excellent aeration and avoiding a build-up of humidity below the substrate. These advantages have led to Spacers also being used with other applications and in other ...
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Seed Seedling Bluetooth Temperature Recorder
Seed seedlings have strict requirements on environmental temperature. Only at a suitable temperature can seeds grow normally. Bluetooth temperature loggers are used for temperature monitoring and can help ensure that seeds germinate and grow under the right temperature conditions. Seed seedlings are generally carried out in greenhouses, which can effectively control the environmental temperature ...
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Increased inbreeding and inter-species gene flow in remnant populations of the rare Eucalyptus benthamii
Eucalyptus benthamii Maiden & Cambage is a forest tree of interest for conservation and plantation forestry. It is vulnerable to extinction, occurring on the alluvial floodplains of the Nepean River and its tributaries, south-west of Sydney, Australia. These floodplains were largely cleared of native vegetation for agriculture by the mid-1800s. Flooding of the Cox Valley for Sydneys water supply ...
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Recurrent restricted phenotypic selection for improving stand establishment of Bahiagrass
Bahiagrass (Paspalum notatum Flügge) is an important perennial forage grass for the southeastern United States, being well adapted to conditions such as sandy or poorly drained soils, drought, and heavy continuous grazing. Current bahiagrass cultivars germinate over an extended period of time and the slow emergence produces incomplete stands, allowing weeds to compete and delaying grazing or ...
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Choosing the Right Light for Young Plants
Horticulture lighting research has been conducted on young plants (germination, seedlings, plugs and cuttings) for many years. Michigan State University published a series of articles in Greenhouse Grower (see references below) on bedding plant seedlings. In their research, Drs. Wollaeger and Runkle experimented with different LED wavelengths and compared them to fluorescent light on seedling ...
By Illumitex
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Ecotoxicological responses of three ornamental herb species to cadmium
Cadmium is one of the most toxic elements. The ideal vegetal cover should be ensured by the selection of appropriate plant species for successful phytoremediation. In the present study, the ecotoxicological effects of Cd on the following 3 ornamental herbs were investigated: Italian ryegrass (Lolium multiflorum Lam.), white clover (Trifolium repens L.), and alfalfa (Medicago sativa L.). Based ...
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Germination and early plant development of ten plant species exposed to TiO2 and CeO2 nanoparticles
Ten agronomic plant species were exposed to different concentrations of nano titanium dioxide (nTiO2) or nano cerium oxide (nCeO2) (0, 250 µg/mL, 500 µg/mL and 1000 µg/mL) to examine potential effects on germination and early seedling development. We modified a standard test protocol developed for soluble chemicals (OPPTS 850.4200) to determine if such an approach might be useful for screening ...
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Advantages of heating mats in seed germination
Advantages of heating mats in seed germination Germinator and heated seedbed. Is seed germination uneven and inconstant? Every time you try to germinate seeds then the seedlings do not germinate or eventually dry up. You should know that not everyone has a green thumb or the right equipment. So what do you do? You give up, just like any inexperienced and hopeless gardener would. But it’s ...
By Cofilea srl
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The value of seed harboured in Mediterranean temporary ponds
Temporary ponds and their varying water levels provide the conditions for valuable wildlife habitat. A study in Crete, conducted under the LIFE-Nature project1 Actions for the Conservation of Mediterranean Temporary Ponds in Crete, has demonstrated these ponds contain varied collections of seeds and that these ‘seed banks’ could play an important role in vegetation recovery after ...
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Inhibition of seed germination and seedling growth of Triticum aestivum L. by industrial wastewaters
The present study was undertaken to determine the effect of different concentrations of wastewaters treated with Pseudomonas putida on various growth indices of durum wheat (Triticum aestivum L.) seeds. Significant decreases in terms of root and leaf growth were observed. The phytotoxicity of textile wastewater was more pronounced on initiation times, germination percentages, root and leaf ...
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Emergence of polymer-coated corn and soybean influenced by tillage and sowing date
No tillage often delays soil warming and drying, thus sowing too early in the spring may compromise seed viability due to prolonged exposure to cold and wet soil in the northern Corn Belt. Coating seed with a temperature-activated polymer may circumvent the adverse effects of exposing seeds to cold and wet soil. Germination and emergence of noncoated and polymer-coated corn (Zea mays L.) and ...
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Soil seed bank composition in pastures of diverse mixtures of temperate forages
Seed banks may contribute useful or weedy species that fill gaps in pastures. In a previous study, pastures planted to complex mixtures of forages had a lesser proportion of weedy species in the aboveground vegetation. In this study, we relate changes in the species composition of the seed bank to changes in the aboveground vegetation. In August 2001, four mixtures [two, three, six, and nine ...
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