Canola flowers form in groups (racemes) and ...

Question

BlackTom AI · Accepted Answer

Question context: Canola flowers develop in racemes, and we are to evaluate which statement among the options is true.
Option 1: 'Flower buds in the raceme are bright yellow.' This is misleading because flower buds are typically greenish to pale before opening, and the bright yellow color is seen in the opened flowers, not the buds themselves. Therefore this statement is not accurately describing bud coloration.
Option 2: 'The first raceme forms in the leaf axils.' In canola, the first (apical) raceme typically forms at the growing point at the top of the plant, not in a leaf axil. So this description is incorrect based on the standard raceme development pattern.
Option 3: 'Pods from the same raceme form at the same time.' In a single raceme, flowers open successively over a period, and pods ( siliques ) from those flowers do not all mature simultaneously; they develop over time as the flowers set seed. This makes the statement inaccurate.
Option 4: 'The first raceme forms at the top of the plant.' This aligns with common canola development, where the initial raceme emerges from the apex and begins flowering at the top before subsequent internodes produce additional racemes. Thus this option is the correct description of the typical pattern.
In summary, evaluating each option against standard canola raceme development shows that only Option 4 accurately reflects where the first raceme forms, while Options 1, 2, and 3 contain misconceptions about bud color, raceme position, and synchronized pod formation respectively.

AGRI20037_2024_SM2 4. Flowering Review

Canola flowers form in groups (racemes) and ...

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