. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. A Fig 28 —Bud development oi bi ech if all iorraed buds were to live, A failing to &®s elop JB as it would bo is it is man} buds The little seedlings of many, especially the conifers, are quite delicate, and remain very small the first'season,- they need, therefore, the protecting shade of mother trees, or artificial shading, and also protection against weeds. The amount of light or shade given requnes careful regulation for some of them; too much light and heat will kill them
. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. A Fig 28 —Bud development oi bi ech if all iorraed buds were to live, A failing to &®s elop JB as it would bo is it is man} buds The little seedlings of many, especially the conifers, are quite delicate, and remain very small the first'season,- they need, therefore, the protecting shade of mother trees, or artificial shading, and also protection against weeds. The amount of light or shade given requnes careful regulation for some of them; too much light and heat will kill them, and so will too much shade. This accounts for the failuie of many seedlings that spring up m the viigm forest. The planter, then, is requned to know the nature and the needs of the various kinds of seeds and seedlings, so as to provide favorable conditions, when he will avoid sow- ing in the open field such as require the care which it is impractical to give outside of the nursery. GROWTH IN LENGTH AND BAMIPICATION. While the stalk of wheat or corn grows for one sea son, exhausts itself m seed production, and then dies, the tree continues to grow from season to season, m length as well as m thickness. The growth m length of shaft and branches proceeds from buds, made up of cell tis sues, which can subdivide and lengthen into shoots, as well as make leaves These buds are formed during summei, and when wmtei begins contain embiyo leaves, more or less developed, under the protecting co\er of scales (fig. 29). When spring stimulates the young plant to new activity, the buds swell, shed their scales, distend their cells, mcieasing their number by subdivision, and thus the leaves expand, and the bud lengthens into a shoot and twig. During the season new buds aie formed, and the whole process repeats itself fiom year to } ear, giving rise to the ramification and height growth of the tree. The end buds being mostly stronger and better developed, the mam a\is of tree or branch incr
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
