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Published byOsvaldo Rowbotham Modified over 9 years ago
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ARTIFICIAL VS NATURAL Natural is when nature does it( generally seen in perennial plants), and artificial is with a little help from man.
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Natural Propagation includes: Corms: ( each year more and more corms grow around the original…must be separated or they will choke) gladiolas and crocus Tubers: ( come from underground stems) potatoes Stolons: ( horizontally above ground stems with tiny leaves from which new plants grow) strawberries are an example Scaly bulbs: ( similar to corms but much larger) onions, garlic, daffodils Tip layer: arching shoots that ultimately touch-down onto the soil ex. Blackberries Root sprouts( suckers): The roots of most plants produce cytokinins. As these accumulate in the roots, the cytokinins induce shoot formation. Near the base of the shrub, a new shoot will begin to grow. Ex. Red raspberries and most bushes
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Leaf cuttings : clone plants by taking a piece and putting it in water or moist soil Stem cuttings : faster than leaf cutting. Place stem piece in water and soon it’s sprout and you plant it. Tissue Culture: designed to make thousands from one small clipping. Clipping is placed into a tissue culture containing nutrients and water. Sprouts quickly. Grafting/ Budding : both are means of asexual propagation that join different plant parts as one. There are many types and the type depends on the reason for grafting. Reasons may be: develop a plant with inadequate root systems stronger stem of one grafted to another for better fruit or flower production **** IN THE NAME OF SCIENCE… NEW AND BETTER FRUITS, VEGGIES AND FLOWERS
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Table 18.2 Modes of Vegetative reproduction with examples Mode of Reproduction Specialised plant Examples part (A) Natural Methods (a) Roots :Asparagus, Sweet potato (b) Stem :(a) Runner Lawn grass, Sucker Mint, Onion, (c) Bulb: Onion (d) Tuber: Potato, Canna (e) Rhizome :Ginger (c) Leave Buds: Bryophyllum (d) Special Parts: Bulbil Oxalis,Pineapple Onion (B) Artificial Methods (a) Cutting: Rose, Money Plant (b) Layering :Jasmine, (c) Grafting :Grape vine, apple trees (d) Tissue Culture: Citrus, Mango, Orchids, Chrysanthemum, Asparagus.
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A number of commonly cultivated plants are usually propagated by vegetative means rather than by seeds. This is a listing of such plants: African violetsAfrican violets — leaf cuttings AppleApple — grafting AvocadoAvocado — grafting BananaBanana — sucker removal blackberriesblackberries (Rubus occidentalis) — stem cuttings PeachPeach — grafting CitrusCitrus (lemon, orange, grapefruit, Tangerine) — graftinglemonorangegrapefruitTangerine DateDate — sucker removal FigFig — stem cuttings GrapesGrapes — stem cuttings, grafting HopsHops — stem cuttings ManiocManioc (cassava) — stem cuttings MapleMaple — stem cuttings, grafting Nut crops (walnut, pecan) — graftingwalnutpecan PineapplePineapple — stem cuttings PearPear — grafting PlumPlum — stem cuttings PoplarPoplar — stem cuttings PotatoPotato — stem (tuber) cuttings Garden strawberryGarden strawberry — runners (stolons)stolons Sugar caneSugar cane — stem cuttings TeaTea — stem cuttings VanillaVanilla — stem cuttings VerbenaVerbena — stem cuttings WillowWillow — stem cuttings
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