 | Josiah Twamley - 1816 - 546 páginas
...proportion to the quantity of sap, or other nutriment which flows through it, in the flux and reflux from the roots to the leaves, and from the leaves to the roots. The branches of trees pruned in this manner are always kept within due bounds ; they do not... | |
 | Margaret Warner Morley - 1897 - 280 páginas
...from the hard earth ; they help the leaves make food. But this is not all. The stems carry the food from the roots to the leaves, and from the leaves to the flowers, where it gets to the ovules. Why should so much be done for the sake of the tiny ovules, white... | |
 | George William Hunter - 1911 - 460 páginas
...have already studied Threc-year-old apple branch, showing terminal and lateral buds and bud scars. roots to the leaves and from the leaves to the stem...a clew as to the appearance of the leafy tree. If the leaf traces are oppositely placed, then we know that the leaves and buds, which give rise to lateral... | |
 | George William Hunter - 1911 - 462 páginas
...apple branch, showing terminal and lateral buds and bud scars. roots to the leaves and from the leaven to the stem and root. The position of the leaf traces...a clew as to the appearance of the leafy tree. If the leaf traces are oppositely placed, then we know that the leaves and buds, which give rise to lateral... | |
 | George William Hunter - 1911 - 456 páginas
...conduction of fluids from the Three-year-old apple branch, showing terminal and lateral buds and bud scars. roots to the leaves and from the leaves to the stem and root. The arrangement of leaf traces on a branch gives us a clew as to the appearance of the leafy tree. If the... | |
 | New York State College of Agriculture - 1913 - 948 páginas
...just under the bark. How thick is the bark on the locust tree? The sap carries water and plant foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for... | |
 | New York (State). Legislature. Assembly - 1913 - 956 páginas
...just under the bark. How thick is the bark on the locust tree? The sap carries water and plant foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for... | |
 | New York (State) Dept. of Agriculture - 1913 - 946 páginas
...just under the bark. How thick is the bark on the locust tree? The sap carries water and plant foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for... | |
 | New York (State). Department of Agriculture and Markets - 1919 - 1050 páginas
...protect the growing part of the tree, which is just under the bark. The sap carries water and plant-foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for... | |
 | New York (State). Legislature - 1919 - 1056 páginas
...protect the growing part of the tree, which is just under the bark. The sap carries water and plant-foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for... | |
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The sap carries water and plant-foods from the roots to the leaves and from the leaves to the growing parts of the tree. That is why it is so important to keep the bark from being injured, for if the bark is cut or bruised or bored into by insects, the... 
