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Meghna Thapar 5 years, 4 months ago
Sapwood is the outer light-colored portion of a tree trunk through which the water passes from the roots to the leaves, and in which excess food is often stored. Heartwood is the central core of the trunk. In most woods, the heartwood can be distinguished from the sapwood by its darker colour. Heartwood has a much lower starch content, and the hollow cells are filled with extractives that are sometimes toxic to fungi and insects giving it much higher durability than sapwood. Sapwood is much less durable than heartwood and often has marginally lower structural properties.
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Gaurav Seth 6 years, 10 months ago
Polysepalous: The sepals are not fused. Example: Rose and Southern magnolia.
Gamosepalous: The sepals are fused or jointed sepals, either wholly or at the base only. Example: Hibiscus and periwinkle are gamosepalous flowers.
Polypetalous: Flowers having free petals. Example: Rose and Camellia.
Gamopetalous: Flowers have fused or united petals. Example: Bindweed and elderberry flowers have gamopetalous petals.
Posted by Sheikh Hisba 6 years, 10 months ago
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Meghna Thapar 5 years, 4 months ago
Inflorescences are complex structures with many functions. At anthesis, they present the flowers in ways that allow for the transfer of pollen and optimization of the plant's reproductive success. During flower and fruit development they provide nutrients to the developing flowers and fruits. A type of flowering shoot in which the growing region at the tip of the flower stalk continues to produce new flower buds during growth. As a result, the youngest flowers are at the top and the oldest flowers are at the base of the stalk.
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