{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Uses of Plant Hormones' data-url='/boclips/videos/634c05fb39426e0cd2a863af' data-video-url='/boclips/videos/634c05fb39426e0cd2a863af' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nUses of Plant Hormones\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356647\" href=\"/search?publisher_ids%5B%5D=30356647\"\u003eFuseSchool\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eIn this video we are going to look at a few different ways in which plant hormones can be used. Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones, that cause the weeds...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eIn this video we are going to look at a few different ways in which plant hormones can be used. \u003cbr/\u003e\u003cbr/\u003ePlant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones, that cause the weeds to grow really quickly. This means the weed is absorbing nutrients from the soil at a much higher rate, and so the weeds absorb the weedkiller in much larger quantities than beneficial plants. This can be used for getting rid of weeds without killing the grass, or thistles in a field without killing the crop. \u003cbr/\u003e\u003cbr/\u003eBut they aren’t just good at killing plants. Gardeners use growth hormones to promote growth. They take cuttings of plants and dip the stalk end into rooting powder which contains growth hormones. This makes stem cuttings quickly develop roots and establish as functioning plants. \u003cbr/\u003e\u003cbr/\u003ePlant hormones can also be used in controlling fruit ripening. Some slow it down, and others speed it up. We can make use of this knowledge to inhibit hormones during transport so that the fruit does not ripen too quickly, or we can promote ripening when in the shops so it is in perfect condition for consumers. Bite into a banana, and you don’t expect seeds do you? Hormones sprayed onto flowers can stop seeds developing, leaving us with big, juicy, seedless fruits. \u003cbr/\u003e\u003cbr/\u003eIn nature, plants only germinate when conditions are ideal for growth. This is called seed dormancy and is controlled by hormones. We can use hormones and inhibitors to remove the dormancy of seeds, thus enabling us to germinate seeds at all times of the year. \u003cbr/\u003e\u003cbr/\u003eWe can also use these hormones to make plants grow bushier and make them flower at controlled times; exactly what you want if you are entering a flower show! \u003cbr/\u003e\u003cbr/\u003eEthylene is used to ripen fruit. Ethylene breaks down components of the cell walls to make them softer, and makes them sweeter by converting starches to sugars. Ever wondered why you are told to put unripe fruit next to ripe fruit? Ethylene is different to other hormones because it is an airborne gas, and works on a positive feedback loop. Start with a little ethylene, and this causes more to be released, which causes more to be released… and so on. 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