If a gardener wanted to propagate a useful variety of apple tree in a way which maintained all its desirable qualities, which of the following techniques would be used?
Planting stem cuttings in potting compost
Grafting stem cuttings onto a rootstock
Cross pollinating
Growing the seeds produced from the useful variety
How are carnations, geraniums and chrysanthemums commonly propagated?
By tissue culture
By cutting
By stem tuber
By bulbs
Which of the following plants have rootstocks?
Strawberry
Grass
Bracken
Onion
In which of the following categories do carrots, parsnips and beetroot fall?
Annual
Biennial
Perennial
All of the above
