Long silky hairs on the cob of maize are:

An $8$-nucleate embryo sac is $..........$.

Chalazogamy is found in

Which of the following statements is incorrect $-$

Which of the following flowers only once in its life-time?

Which of the following represents the correct sequence of phases in the life cycle of wheat? [where $J$ - Juvenile phase,$R$ - Reproductive phase,$I$ - Interflowering period,$G$ - Gap phase,$S$ - Senescence,$V$ - Vegetative phase]