A FARMER WHO WANTS TO KEEP SEEDS FOR THREE YEARS BEFORE PLANTING AND WANTS TO PREVENT THEM FROM SPROUTING USES
A. auxin B. gibberellins C. abscisin ✓ D. cytokinins The answer to the question is: C. abscisin The farmer who wants to keep seeds for three years before planting and prevent them from sprouting would use abscisic acid (ABA). ABA is a plant hormone…
SEEDS AND FRIUTS
Seeds A seed is a structure which develops from the ovule after fertilization. A seed consists of an embryo and one or two cotyledons. It may contain an endosperm or food reserve. The embryo is made up of a radicle…
DISPERSAL OF FRUITS AND SEEDS
After the maturation of fruits, an abscission layer is formed at the point of attachment of the fruits to the stems. This layer later dries up and the fruits drop from the plant. Some times the fruits split up to…
COTTON (Gossypium spp)
Cotton is a fibre crop and belongs to the plant family called Malvaceae. It produces cotton lint, a white fibre used in textile industries. Land Preparation: The land is cleared with cutlass or mechanically ploughed and harrowed to make…
RICE (Oryza sativa)
Rice is another popular cereal crop grown and consumed by nearly half of the world’s population. It is also a member of the grass family (Gramineae). The seed/fruit of rice is a caryopsis, i.e ., it has its epicarp fused…
SOME CULTURAL PRACTICES IN CROP PRODUCTION
1) Transplanting The transfer of seedlings from nursery beds to their permanent positions in the field. The tools used for transplanting are handtrowel, digger, hoe or cutlass. Plant is removed with a ball of soil around its roots. Mostly done…
PROPAGATION OF CROPS
Meaning of propagation Propagation is the process of raising young plants from seeds or by vegetative parts. Methods of crop propagation There are two main methods of crop propagation. Viz: Sexual propagation Asexual propagation Sexual or seed propagation…
Study Guide
