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Question
Which of the following is a type of underground stem?
Which of the following is a type of underground stem?
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Solution
The correct option is D All of the above
Tuber, corm and bulb are all different types of underground stem modifications. Tuber is usually a short and thickened structure with starch stored in it and also shows presence of nodes. For example- potato. Corm is an unbranched swollen underground stem having circular nodes that have buds for growth of daughter plants. For example- Colocasia. In a bulb, the stem is shortened down to a disc often called the basal plate. The roots arise from the edge of the basal plate. For example- onion.
Tuber, corm and bulb are all different types of underground stem modifications. Tuber is usually a short and thickened structure with starch stored in it and also shows presence of nodes. For example- potato. Corm is an unbranched swollen underground stem having circular nodes that have buds for growth of daughter plants. For example- Colocasia. In a bulb, the stem is shortened down to a disc often called the basal plate. The roots arise from the edge of the basal plate. For example- onion.
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