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Showing 1 to 12 of 12 for “"plant propagation"”.
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The Plant Propagation Algorithm for Discrete Optimisation
… be effective in continuous optimisation is the Plant Propagation Algorithm or PPA. Here, we intend to extend it to cope with combinatorial optimisation. In order to show that our extension is viable and effective, we consider three types of problems which are good representatives of the whole …
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Evaluation of eastern redcedar as a substrate for container-grown plant production
… (Juniperus virginiana L.) is an indigenous plant throughout much of the United States and, in the Great Plains, it has become a pest. Use of wood-based substrates (primarily composed of pine trees) has been proven effective in both nursery and greenhouse production. Eastern Redcedar chips …
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Multi-Objective Linear Programming Revisited: Exact and Approximate Approaches
… sorting genetic algorithm II and the plant propagation algorithm as alternative approximate methodologies for MOLP. It also presents a procedure to compute the most preferred nondominated point of the problem. All algorithms have been tested and compared on existing test instances.
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The reproductive biology of Clematis addisonii
<i>Clematis addisonii</i> Britton (Ranunculaceae) is a Virginia endemic restricted to calcareous soils in a four county region of the Ridge and Valley Province in Virginia. A two year study of the reproductive biology of this species reveals that it is self-compatible, showing no significant …
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Päivänpituuden ja proheksadioni-kalsiumin vaikutus jatkuvasatoisen mansikan vegetatiiviseen ja generatiiviseen kehitykseen
… increase by short day length through increasing plant size. In this study, the effect of short (12 h) and long (18 h) day length as well as ProCa (0 and 200 ppm) on the growth of three everbearing strawberry cultivars (Elan, Malling Pearl and Tango) were tested. The treatments were carried out …
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Propagação por Fracionamento do Cladódio de Palmas Forrageiras Resistentes a Cochonilha do Carmim.
… of a pest that plagues the current cactus plantations (palmais) around the Northeast of Brazil, which is the cochineal carmine (Dactylopius opuntiae). This study aimed to evaluate the consolidation of a method of plant propagation, called fractionation cladodes of resistant varieties of …
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The nutritional composition of Atriplex halimus L. in Malta
A study was conducted in order to determine the chemical composition of Atriplex halimus cuttings taken form Sliema (latitude 35, 54, 41 N, longitude 14 29 54, altitude sea level), a coast facing North in Malta. The climate in Malta is semi-arid with an average annual precipitation of 605.6mm, …
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The control of embryogenic competence in Alfalfa (Medicago falcata L.)
… embryos. This process is not only an important plant propagation technique, but it also provides an essential tool for basic research into plant embryo development and other aspects of plant physiology. One of the basic features of the initiation of somatic embryogenesis is the reactivation of …
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An evaluation of wounding and hormone on the rooting of cutting : A thesis submitted in partial fulfilment of the requirements for the National Diploma in Horticulture in New Zealand
… different types of cuttings from a wide range of plant material has been the standard practice of many nurserymen throughout the world. This practice has been passed onto new generations of plant propagators as a successful technique for propagating many different species.
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The propagation and establishment of Coriaria pteridoides, W.R.B. Oliver and Helichrysum bellidiodes (Forst.f.) Willd on Mount Egmont: A thesis submitted in partial fulfilment of the requirements for the National Diploma in Horticulture (N.Z.)
… that support them, that this study relating to plant establishment was undertaken.
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Powdery Mildew (Erysiphe cruciferarum) Affects the Allelopathic and Competitive Abilities of Invasive Garlic Mustard (Alliaria petiolata)
… treatments had variable effects on target plants, many of which mirror the effects which allelopathic plants (A. petiolata) that disrupt soil microbes seem to have. Sterilization inhibited growth of E. canadensis through the destruction of beneficial effects from microbes, while increasing …