The Hawaiian Forester and Agriculturist: Quarterly Magazine of Forestry, Entomology, Plant Inspection and Animal Industry, Bind 10,Del 8Advertiser Publishing Company, Limited, 1913 |
Andre udgaver - Se alle
Almindelige termer og sætninger
acid acre Agricul Agriculture and Forestry agriculturist appear aroids Arum ascospores Bahamas bamboo bark Board of Commissioners built calcic oxalate callus callus formation cause cent chlamydospores cingulata clean Commissioners of Agriculture conidia coöperation corm cost cotton crystals cultivated Daniel Logan December 31 Deputy Territorial Veterinarian develop Elwell law ending December 31 Entomologist fact farm farmer flowers Forester Forestry fungus Garden grass Hampton Institute's hauling Hawaii Hawaiian Highway Commission Honolulu hosts huli hydrochloric acid important interested KALO PLANT Kauai land large contractor large number latex leaves machinery manufacture maritime pine Maui microscopic milk and cream milk or cream Minnesota monocotyledonous Old World oxalate of lime paper paper-making parasitic Patents physiological Plant Inspector planter plowed practical PROPAGATION BY CUTTINGS proper pulp resin road root crops rubber vine sanitary seed shoot soil spadix species of Glomerella stem text figures tion trees tropical tubers turist vegetables
Populære passager
Side 228 - ... microscopic examination of dried ARUMS as we had found in the fresh tubers. We explain this apparent anomaly in the following simple manner. In the fresh condition of the tubers, the bundles of crystals of oxalate of lime are cone-shaped, more or less, the sharp points covering a wide area, and forming the base, but, in the drying of the tubers, the needles appear to arrange themselves more or less parallel to one another, and the sharp points thus cover a smaller area. And thus, instead of each...
Side 219 - G. cingulata can also be carried by any one of thirtyfour different specie? of agricultural plants, including such diverse forms as palms, oranges, apples, gooseberries, cacao and arrowroot. Of great economic significance is the fact that one species of Glomerella is confined to cotton. This species, it may be added, occurs in the West Indies and causes the well-known disease, anthracnose. The production or non-production of the perithecial stage of Glomerella appears to be a fairly well-marked hereditary...
Side 227 - These crystals were seen under the microscope to be insoluble in cold acetic acid but easily soluble in cold diluted nitric or hydrochloric acid. * * * There appears to us to be no reason to douBt the fact, that the whole of the physiological symptoms caused by Arums are due to these needle-shaped crystals of oxalate of lime, and that the symptoms are thus due to purely mechanical causes. Bearing in mind the action of re-agents on calcic oxalate, the reason why mere boiling in water failed to deprive...
Side 219 - It is also shown that there is a great variability in the virility of different races or strains of the fungus from the same host. In one experiment races from the lemon, grape and fig produced more serious cases of bitter-rot of apple than a race of the fungus derived from apples. These facts are of great importance in connection with the selection and production of disease-resistant varieties of plants.
Side 231 - ... produced from healthy cows under conditions which prevent all outside contamination. The production of clean and healthful milk is the most important subject with which the dairyman has to deal. Considered from an economic standpoint, we find milk produced under absolutely sanitary conditions selling for practically double the ordinary price. Needless to say, for the production of sanitary milk the dairyman must have healthy cows, a sanitary barn, clean bedding, dust-free air, a clean barnyard,...
Side 220 - A bill to authorize the board of supervisors of the county of Prince George to undertake the building of an improved road from the corporation line of the city of Petersburg to the village of City Point, in the said county, under the direction and in accordance with the plans and specifications of the State Highway Commission; to accept from the city of Petersburg, for this purpose, a contribution, which has already been tendered, of $25,000, to accept from the EI DuPont de Nemours and Company, for...
Side 219 - The production or non-production of the perithecial stage of Glomerella appears to be a fairly well-marked hereditary race character. There is no evidence to show that the production of perithecia is controlled by any of the ordinary conditions of nutriment or environment, though accurate investigation along this line would possibly lead to results of great importance. In...
Side 227 - Poisonous Properties of Aroids. COLOCASIA virosa. tinder, containing saltpetre. The examination of the ash thus failed to afford us any clue to the physiological action of the fresh tubers." " It now occurred to us that possibly the painful effects produced by ARUM when in contact with the tongue, &c., might be due to mechanical causes. A microscopic examination of a section of a tuber revealed the presence of very numerous bundles of needle-shaped crystals, and we also found similar crystals in...