What is the effect of a lack of nitrate ions on plant leaves? А All leaves turn very dark green.
B Leaves lose their yellow colour.
C The leaves wilt.
D Young leaves grow very slowly.

Explanation:

Nitrate deficiency

Without nitrates, the amount of chlorophyll in leaves reduces. This means leaves turn a pale green or yellow colour. This reduces the plant's ability to photosynthesise and grow properly, which reduces the farmers' crop yield .

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.