Use Of Plant Hormones (ht Only) (GCSE Biology)

A fruit packer wants to delay apple ripening for longer shelf life. Which hormone treatment or storage condition is best?

How do growers use gibberellins to manage flowering in nursery stock (e.g., to induce earlier flowering)?

How can auxin be used to produce seedless fruit (parthenocarpy) in some crops?

Which hormone is often used in plant tissue culture to stimulate shoot formation from callus tissue?

Which statement best describes how gibberellins are used to improve malting and brewing of barley?

Which plant hormone is used commercially to ripen fruit rapidly in storage or during transport?

In commercial cereal production, why might a farmer apply a growth regulator that mimics auxin at an early stage?

A grower wants to keep lettuce compact and delay bolting (flowering). Which hormone treatment is likely to help?

Which is an environmental benefit of using plant hormones to improve crop yields?

Farmers use selective auxin-based herbicides to kill broad-leaved weeds while leaving grasses relatively unharmed. Which property of auxin herbicides explains this use?

How do growers use plant hormones to propagate disease-free plants via micropropagation?