Weedkillers Selective weed killers kill some

Weedkillers Selective weed killers kill some
1 / 1
Weedkillers Selective weed killers kill some plants but not others. This can be useful for getting rid of dandelions in a lawn without killing the grass, or getting rid of thistles in a field without killing the wheat plants. The selective

Related Topics

Download this presentation From Below

"Weedkillers Selective weed killers kill some" is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Presentation Transcript

01
Weedkillers
Selective weed killers kill some plants but not others. This can be useful for getting rid of dandelions in a lawn without killing the grass, or getting rid of thistles in a field without killing the wheat plants. The selective weed killer contains growth hormone that causes the weeds to grow too quickly. The weed killer is absorbed in larger quantities by the weeds than the beneficial plants.

Rooting powder
Rooting powder makes stem cuttings quickly develop roots. Rooting powder contains growth hormones.

Controlling fruit ripening
Some hormones slow the ripening of fruits and others speed it up. These hormones and their inhibitors are useful for delaying ripening during transport or when fruit is displayed in shops.

Dormancy
Dormancy stops seeds germinating until conditions are ideal for growth. Hormones can be used to remove the dormancy of a seed so it can germinate at all times of year. Buds and flowers can also be naturally dormant. Hormones can also be used to make plants grow bushier, make them flower or control the growth of hedge plants 1 2 3 Q 6 7 Q 9 10 11 13 14 15 17 18 19 21 22 23 25 26 27 29 30 31 32 33 34 36 37 38 39 40 41 Q Q Q Q Q Q Q Q Q Q Using Plant Hormones Starter Game<br>