Vegetative Reproduction Link the type of asexual reproduction with the crop. The first one is done for you. Tubers ginger Rhizomesonion Bulbsstrawberry Runnerspotato 5 minutes

Runners eg. Strawberry plants

Rhizomes eg. Ginger

Bulbs eg. onions

Soil cultivation

Single Digging or Bastard Trenching What does it do for the soil?

Pick five of the following: aerates the soil changes the soil colour removes weeds improves drainage washes the soil away FYM can be added to improve crumb structure raked to produce a good tilth How does cultivating/digging improve the soil? 10 minutes

Seed germination 1. Put the labels on the diagram plumule radicle testa cotyledon 2. oxygen light warmth water 2. What three things are essential for germination? 10 minutes

Seed Germination Testa (Seed Coat) Tough, so water is needed to swell the seed and break the testa before the seed can germinate Cotyledons (Food Store) Glucose + Oxygen Energy Plumule Young shoot Radicle Young root Enzymes are needed for respiration therefore seeds only germinate in the warmth Light is not usually needed for germination except in certain seeds such as lettuce

light sensors temperature probes carbon dioxide sensors pH meters humidity sensors fire extinguishers panic buttons music playersPick the 5 useful devices for these places 10 minutes

Problems when storing crops Ripening Bruising Pests Diseases Link the problem with its consequence Damaged crops allow in microbes that will infect the crop If crops are too ripe they will spoil before they can be used These will eat the crop or damage it with faeces and other wastes These can discolour, flavour or rot away the crop 10 minutes

Problems when storing crops Ripening Bruising Pests Diseases Link the problem with its consequence Damaged crops allow in microbes that will infect the crop If crops are too ripe they will spoil before they can be used These will eat the crop or damage it with faeces and other wastes These can discolour, flavour or rot away the crop 10 minutes

Problems when storing crops Ripening Bruising Pests Diseases Link the problem with its consequence Damaged crops allow in microbes that will infect the crop If crops are too ripe they will spoil before they can be used These will eat the crop or damage it with faeces and other wastes These can discolour, flavour or rot away the crop 10 minutes

Problems when storing crops Ripening Bruising Pests Diseases Link the problem with its consequence Damaged crops allow in microbes that will infect the crop If crops are too ripe they will spoil before they can be used These will eat the crop or damage it with faeces and other wastes These can discolour, flavour or rot away the crop 10 minutes

Problems when storing crops Ripening Bruising Pests Diseases Link the problem with its consequence Damaged crops allow in microbes that will infect the crop If crops are too ripe they will spoil before they can be used These will eat the crop or damage it with faeces and other wastes These can discolour, flavour or rot away the crop 10 minutes

Revision quiz 1.What parts of the plant does a lack of (1) phosphorus (2) nitrogen (3) potassium affect? ANSWER (1) roots (2) leaves and shoots (3) flowers and fruits 2.Which is easier to spread, organic or inorganic fertilisers? ANSWER Inorganic fertiliser – because it is usually in the form of an easy liquid or granules. 3.What are the disadvantages of cross pollination? ANSWER It requires a vector; i.e. something to carry the pollen from one plant to another. 4.What two things does the flower of an insect-pollinated plant have to attract insects to it? ANSWER Nectar glands, brightly coloured petals. 5.What does asexual mean? ANSWER Without the need for sex cells, a male and female parent, seeds, fertilisation, pollination. 10 minutes

B491 Revision 2.