Presentation on theme: "Welcome to Horticulture!"— Presentation transcript:
1Welcome to Horticulture! What the heck is it,anyway?
2Unit One: Plant Basics What is horticulture? How does a greenhouse work?Structure and function of basic plant parts (seeds, roots, stems, leaves)How to grow a plant from seed and keep it healthy as it growsCareers in horticulture
3What is Horticulture? Horticulture has three major parts: Plant growth and maintenanceCrop productionPlant breedingThe goal of horticulture is to improve plant quality, nutritional value, and resistance to insects, diseases, and environmental stresses.
4Specific Types of Horticulture Floriculture: production and marketing of flowersOlericulture: production and marketing of vegetablesPomology: production and marketing of fruitsLandscape: production, marketing, and maintenance of landscape plants
5Focus of Our ClassIn this class, we will practice floriculture and landscape horticultureThis practice includes:Propagation: production of plants from seeds or cuttingsGrowth and maintenance: keeping plants healthy as they mature to adultsMarketing: setting up a Plant Sale!Designing: turning your floriculture into products that consumers will want
7What is a Seed?Seeds are the fertilized eggs of flowering plants and evergreens‘Nuts’ and ‘Beans’ are actually seedsEach scale of a pine cone is a seed
8Parts of a SeedA seed consists of an embryo surrounded by a food supply and protective coveringFood supply is called a cotyledonProtective covering is a seed coatAlso have beginnings offirst stem and root, calledapical meristems
9What Seeds Need to GrowSeeds will germinate (break out of seed coat and grow roots and stems) when conditions are absolutely rightSoil nutrients (nitrogen, phosphorus, etc.)Water levelsTemperatureHumidityBecause seeds have a food supply, they will stay dormant for weeks, months, or years until the conditions are right!
10Monocots vs. DicotsFlowering plants are classified as either monocots or dicots, based on:Seed structureLeaf veinsFlower partsType of rootsStem structure
11Monocots vs. Dicots Monocots Dicots Seeds One cotyledon Two cotyledons LeavesParallel veinsBranched veinsFlowersPetals in multiples of 3Petals in multiples of 4 or 5StemsVascular bundles scattered throughout stemVascular bundles arranged in a ringRootsThin, fibrous rootsOne big taproot
12Monocots Examples: corn, orchids, grasses, tulips Majority of agricultural plants are monocots
13Dicots Examples: roses, maple trees, oak tree, daisies Most plants used in landscaping are dicots
14Geraniums and LobeliaThis week we will plant Lobelia and Geraniums, both dicots.Lobelia and Geraniums are very popular in landscaping.