Can you nourish a duck, 15 goldfish, an apple tree sapling, an apricot tree plantlet, and a small rhododendron plant exclusively from household effluent?
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The genus Kalanchoe may reproduce asexually by producing plantlets on leaf margins, which when distributed on a suitable substrate will form new plants. Plantlet-forming species fall under two categories. The first category is induced plantlet-forming species that produce plantlets under stress. The second plantlet-forming species is constitutive plantlet-forming species that spontaneously forms plantlets.
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Induced plantlet-forming species have the LEC1 gene that allows them to produce seeds, whereas the constitutive plantlet-forming species have a defective LEC1 gene and cannot produce seeds.Garces, Helena M. P. “Evolution of asexual reproduction in leaves of the genus Kalanchoe.” Proc Natl Acad Sci U S A 104. 39 (2007): 15578-83.
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The plant may also reproduce by growing a plantlet and runners.Flora of North America, Eleocharis vivipara Link, Hort. Berol. 1: 283. 1827. Eleocharis vivipara may grow in the water or on land.
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This can be done by removing and rooting the plantlets produced at the end of each stolon. Since the plantlets grow a rosette of leaves before beginning root growth, when rooting plantlets, it is very important that plantlet is not removed before it has developed stilt roots to a length of at least 3 cm. If removed too soon, the plantlet will not have the energy or water reserves to produce roots before dying. Once stilt roots have been grown to sufficient length, however, the stolon can be cut at any point and the new plant can be potted in slightly moist porous soil.
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Trunks often become unstable when they reach around 3 m in height and topple over. If the trunk is in contact with the ground a new plantlet will often grow from the fallen trunk. Dicksonia youngiae is not fully hardy and will not tolerate more than a few degrees of frost.Dicksonia youngiae.
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Stilt-like roots holding a young plantlet above the surface. The stolon is visible to the right. The defining characteristic of D. pinguicula are its thick stilt-like roots. Each rosette produces several of these roots, which can elevate the plant several inches off the ground and are covered in a thick brown cuticle.
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Depending on conditions, a plantlet can take anywhere from a few weeks to almost a year before producing new roots, and may take even longer to grow fine roots and become established. Division is the preferred method for propagating most specimens, and in particular, variegated specimens, since leaf cuttings typically do not preserve the variegation.
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And after the plantlet develops in vitro, then the ex-planting process can often be very stressful and result in plant death, which isn't a problem for pre-acclimated plantlets grown via photoautotrophic tissue culture (In this context, pre-acclimated refers to plantlets that have developed a cuticle and have been cultivated in an open air system as opposed to the closed system seen in typical operations).
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Asplenium rhizophyllum plantlet sprouting from the leaf apex of its parent plant The leaf blades are not subdivided, as in most other ferns, but are narrowly triangular to linear or lance-shaped. Their shape can be quite variable, even on the same plant. They measure from long and from across and have a leathery texture with sparse hairs, more abundant below than above. The rachis (leaf axis) is dull green in color and almost devoid of hairs.
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At the end of embryonic growth, the seed will usually go dormant until germination. Once the embryo begins to germinate (grow out from the seed) and forms its first true leaf, it is called a seedling or plantlet. Plants that produce spores instead of seeds, like bryophytes and ferns, also produce embryos. In these plants, the embryo begins its existence attached to the inside of the archegonium on a parental gametophyte from which the egg cell was generated.
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Vegetative apomixis in Poa bulbosa; bulbils form instead of flowers In botany, apomixis was defined by Hans Winkler as replacement of the normal sexual reproduction by asexual reproduction, without fertilization. Its etymology is Greek for "away from" + "mixing". This definition notably does not mention meiosis. Thus "normal asexual reproduction" of plants, such as propagation from cuttings or leaves, has never been considered to be apomixis, but replacement of the seed by a plantlet or replacement of the flower by bulbils were categorized as types of apomixis.
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The Lotus is the product of heat (fire) and water (vapour or Ether); fire standing in every philosophical and religious system as a representation of the Spirit of Deity, the active, male, generative principle; and Ether, or the Soul of matter, the light of the fire, for the receptive female principle from which everything in this Universe emanated. Hence, Ether or Water is the Mother, and Fire is the Father. Sir W. Jones (and before him archaic botany) showed that the seeds of the Lotus contain — even before they germinate — perfectly formed leaves, the miniature shape of what one day, as perfect plants, they will become: nature thus giving us a specimen of the preformation of its production ...the seed of all phanerogamous plants bearing proper flowers containing an embryo plantlet ready formed. :The Lotus, or Padma, is, moreover, a very ancient and favourite simile for the Kosmos itself, and also for man.
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