Culture of the Citrus in CaliforniaA.J. Johnston, superintendent state printing, 1900 - 260 páginas |
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Palavras e frases frequentes
acid acre allowed applied Baronio bearing bitter orange BOARD OF HORTICULTURE branches buds CALIFORNIA CITRUS CULTURE cent citron Citrus aurantium citrus fruits citrus trees climatic color County crop cultivation cut back disease early experience feet fertilizers Florida flowers foliage frost fruit grown furrows gallons ground grow grower growth hardpan hybrid important inches industry insect irrigation keep land leaf leaves lemon grove lemon trees limbs lime manure medium moisture natural Navel orange nitrogen nursery orange and lemon orange trees orchard packed Palermo peel petiole phosphoric acid picking pistils planted plow pollen pomelo potash pounds produce profitable pulp quincunx removed rind ripens Riverside roots scale season seed seedless seedling shipment Sicilian Sicily skin soil sour species staminal strong suckers surface sweet orange thick thin tion trunks varieties Washington Navel whorl winter wood yellow
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Página 224 - There be three things which are too wonderful for me, yea, four which I know not: The way of an eagle in the air; the way of a serpent upon a rock; the way of a ship in the midst of the sea; and the way of a man with a maid.
Página 253 - Antennae of the larvae 6-jointed with a very long pubescence, and with four hairs upon the last joint much longer than the others. Lateral lobes of the extremity of the abdomen with a series of three very long, frequently interlaced bristles.
Página 247 - ... with the larval skin at one extremity. The last segment of the female presents five groups of spinnerets. In the scale of the female the...
Página 243 - ... the sponge. The operative holds a small sponge in his left hand, against which he presses each piece of peel two or three times — simple pressure followed by rotary pressure. The women employed in this work run a piece of cane through their sponges to enable them to hold them more firmly. The outside of the peel is pressed against the sponge, as the oil glands are in the epicarp. The crushing of the oil cells liberates the essence therein contained.
Página 27 - Section of a tomato flower ; rr, calyx ; r, corolla ; s, stamens ; j>, pistil ; o, ovary ; »(, stigma. (Twice natural size.) tain plants they are produced in different flowers on the same plant, as in walnuts, castor beans, etc., or on different plants, as in the willow, poplar, etc. In undertaking to hybridize plants artificially, it is well to remember that in many plants the stamens and pistils when in the same flower mature at different times — a provision to insure cross-pollination (the...
Página 122 - fancy " should be extra bright, with very smooth, thin skin. Rough, thick-skinned fruit, be it ever so bright, should never be classed as fancy. Oranges classed as " choice bright " should be strictly bright and of fairly smooth skin and desirable size. Oranges classed as " bright " should be bright and free from smut. Never pack bright and smutty oranges in the same box. Never pack large and small oranges in the same box. One of the most important features in the packing of oranges is the uniform...
Página 254 - The antennae of the female are six-jointed in the larva and eight-jointed in the adult: the male larva has seven-jointed antennae. The tarsi are furnished with four digitules, and the anal ring with four hairs. Most of the mealy bugs are tropical or subtropical, but several species breed abundantly out of doors in the Southern United States, eg Dactylopius citri, a.
Página 252 - VIII, flg. 3) Adult female. — Shape approaching hemispherical with the edges flattened. Average length 3.5 mm., width 3 mm., height 2 mm. The shape and proportions vary somewhat according as the scale is formed upon a leaf or a twig. Upon the rounded twig it loses something of its hemispherical form, becomes more elongated, and its flattened edges are bent downwards, clasping the twig. In such cases, of course, its height becomes greater and its width less. The color...
Página 243 - An operative expresses 3 baskets of lemon peel (weighing 190 pounds) a day, and is paid 20 cents a basket. The essence is so valuable that the operatives are closely watched ; they are most ingenious in secreting it about their persons. Six men work up 8,000 lemons a day ; two cut off the peel while four extract the essence, and obtain 136 gallons of lemon-juice and 7 pounds of essence. In the extraction of essence defective fruit — thorn-pricked fruit blown down by the wind or attacked by rust...
Página 103 - The orchard is laid off in lines crossing each other, with equal intervals of space, and a tree planted at each crossing of the lines. By the square method, at twenty feet apart, one hundred and nine trees are planted to the acre.