EVERYDAY SCIENCE

Detailed explanation-1: -Canes (figure 9a) are stems with relatively large pith (the central strength-giving tissue). They usually live only one or two years. Examples of plants with canes include roses, grapes, blackberries and raspberries.

Detailed explanation-2: -The pith is a small zone at the center of the stem, consisting of parenchyma cells and originating as a primary tissue from the ground meristem.

Detailed explanation-3: -Pith: At the very center of the tree is the pith, which is the oldest part of the tree. The pith, together with the tree’s first few annual rings, is called juvenile wood. The pith area has a greater tendency to crack than the rest of the wood in a tree.

Detailed explanation-4: -Pith is composed of soft, spongy parenchyma cells, which in some cases can store starch. In eudicotyledons, pith is located in the center of the stem. In monocotyledons, it extends also into flowering stems and roots. The pith is encircled by a ring of xylem; the xylem, in turn, is encircled by a ring of phloem.

Detailed explanation-5: -Pith is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.