Abstract
A study was carried out to understand the flowering behaviour of some commercial sugarcane clones of sub-tropical India and the changes taking place in the target tissues in relation to flowering. The clones studied showed a wide range of flowering behaviour. The shoot apex tissues showed initiation of changes much before the short blade stage. The changes were characterized by an increase in the length and width of the shoot tip tissues and primordial initiation. These changes could be observed 4–5 weeks before the initiation of short blade, which is considered to be an early stage at which flowering could be detected. This gives an idea about specific stages of the crop at which, changes in gene expression patterns during the transition from vegetative to reproductive stage may be observed.
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