. American bee journal. Bee culture; Bees. ?^?;gj»».... VOL. LXI—NO. 12 HAMILTON, ILL., DECEMBER, 1921 MONTHLY, $ A YEAR ALTITUDE AND SECRETION OF NECTAR An Account of the Effect of Elevation, Temperature, Etc., on the Amount of Nectar Available to the Bees.—By^ohn H. Lovell. THE secretion of nectar is at once one of the most interesting and baffling: functions of plant life. The older flower biologists, Mueller and Kerner, describe the nectaries and their position at great length, but of the relation to the soil, climate and temperature to secretion they knew little. We suspect that
. American bee journal. Bee culture; Bees. ?^?;gj»».... VOL. LXI—NO. 12 HAMILTON, ILL., DECEMBER, 1921 MONTHLY, $ A YEAR ALTITUDE AND SECRETION OF NECTAR An Account of the Effect of Elevation, Temperature, Etc., on the Amount of Nectar Available to the Bees.—By^ohn H. Lovell. THE secretion of nectar is at once one of the most interesting and baffling: functions of plant life. The older flower biologists, Mueller and Kerner, describe the nectaries and their position at great length, but of the relation to the soil, climate and temperature to secretion they knew little. We suspect that Mueller would have been not a little astonished had he been told of the vagaries of alfalfa and white clover in the production of nectar. Most of our information on this subject is due to the observations of beekeepers, and will be found re- corded in the files of the bee journals. A large amount of data has been ac- cumulated as to the facts, but the in- fluence of the various factors is still very imperfectly understood. Similarity of Conditions in Mountain- ous and Arctic Reg^ions The effect of altitude on the secre- tion of nectar has lately been the sub- ject of frequent discussion, and it is proposed in this paper to briefly re- view conditions prevailing in Alpine regions. It is a pi-oblem of great prac- tical as well as theoretical interest to the beekeeper. As neai'Iy the same conditions prevail at high latitudes a? at high elevations, it is desirable to compare the floras of these two re- gions. In both Alpine and Arctic dis- tricts the plants are exposed to low temperature and intense light. At an elevation of a mile or more the air is less dense, or thinner, and intercepts less sunlight than in the plains. As we advance in the summer toward the North Pole the days become longer and the earth receives more of the sun's rays than farther south. In both cases, also, the cold gi-adually in- creases until plant life practically dis- appears. Mountain regions differ
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Keywords: ., bo, bookcentury1800, bookdecade1860, booksubjectbees, bookyear1861
