850 



AGRICULTURAL INDEX 



Plants, Effect of light on — Continued 



Daily rhvthms of elongation and cell division 



in- certain roots. R. C. Friesner. bibliog 



Am J Bot 7:380-406 N '20 



Darkness and light effect flowering and 



fruiting of plants. 11 Farming 19:218-19 J a 



Daylight controls plant Ufe. Ohio F 145:936 Je 



5 '?0 

 Deceiving the plants. Literary Digest (354 



4th av, N.Y. 10c) 65:40 My 15 '20 

 Do plants need the dark? R. H. Moulton. il 



Gard M 32:98-9 O '20 

 Effect ot colored light upon plant growth. 

 H A. Gardner, il Sci Am Monthly (23;i 

 Broadway, N.Y. (>0c> 2:313 D '20 

 Effect of light exposure on plant growth. W. 

 W. Garner and H. A. Allard. Sci Am 

 Monthly (233 Broadway, N.Y. 60c) 3:78 Ja 

 '21 

 Effect of light exposure on plant growth. 



J. R. Magness. Bot Gaz 70:246-7 S 20 

 Effect of light on germination of hght- 

 sensitive seeds. W. A. Gardner, bibliog Bot 

 Gaz 71:249-88 Ap '21 

 Effect of the length of day on seedlings of 

 alfalfa— varieties and the possibility of util- 

 izing this as a practical means of identifi- 

 cation. R. A. Oakley and H. L- Westover. 

 bibliog il J Ag Research 21:599-608 Jl 15 '21 

 Effect of the relative length of day and 

 night and other factors of the environ- 

 ment on growth and reproduction in plants. 

 AV. W. Garner and H. A. Allard. bibliog 

 J Ag Research 18:553-606, pi 64-79 Mr 1 

 '20; Abstracts. Ag News 19:371 N 2/ 20; 

 Australian For J 4:249-50 Ag '21 

 Effect of unilateral monochromatic light ana 

 group orientation on the polarity of g^ermin- 

 ating fucus spores. A. M. Hurd. bibliog U 

 Bot Gaz 70:25-50 Jl '20 _ ^ ^ a^- 



Effects of light on plants. F. Schanz. Sci 

 Am Monthly (233 Broadway, N.\. 60c) 1: 

 12-15 Ja '20 

 Flowering and fruiting of plants as con- 

 trolled bv the length of day. W. \V. Gar- 

 ner and H. A. Allard. il U S Ag Yearbook 

 1920:377-400 '21 ^ , , , 



Hasten mat;iiity of plants by regulated 



light period. Weekly N L 7:1 Ao 14 -0 

 Influence of light on the absorption by plants 

 of organic matter in the soil. C. de Besteiro 

 and M. Durand. Int R Sci & Prac Ag 10,no 

 7 '842-3 Jl '19 

 Influence of light upon the action of stomata 

 and its relation to the transpiration of cer- 

 tain grains. J: Grav and G: L. Peirce. bib- 

 liog A.m J Bot 6:131-55 Ap '19; Abstract. 

 Int R Sci & prac Ag 10.no 7:843-4 J! '19 

 Length of day and blossom time. Gard Chron 

 (Lond) 68:115, 127 S 4-11 '20; Same (pt. 2). 

 Gard Chron Am 24:378 N '20 

 Light and growth. W: Crocker. Bot Gaz vO: 



243-6 S '20 „ ^ ^ . A 



Light and organisms. A. M. Hurd. Sci Am 

 Sup (233 Broadway, N.Y. 10c) 88:171 S 13 



'19 

 Light period regulates plant maturity. Am 



Flor 54:792 My 1 '20 ^ , . 



La luz V la produccion vegetal. M. Calvino. 

 Sugar'23:G44-6 N '21; Same cond. R de Ag 

 Cuba 4:532-0 Ap '21 „ ■ ^ 



Plant movement and radiant energy. Sci Am 

 (23.3 Broadwav. N.Y. 15c) 12'5;63l D 25 '20 



Plants made to order, il II "World (Drexel av 

 and 58th st, Chicago 25c) 33:703-4 Je '20 



Put vour plants to bed earlier. R. H. Moul- 

 ton. il Independent (119 W. 40th st, N.Y. 

 15c) 102:294 My 29 '20 



Putting plants on daylight rations, il Sci Am 

 (233 Broadway, N.Y. 15c) 122:624 Je o '20 



Relation of flax to varying amounts of light. 

 J. Adams. Bot Gaz 70:153-6 Ag '20 



Too long a day stop.? flowering; length of 

 day instead of temperature controls time 

 of flowering and fruiting. Potato M 2:8 + 

 Ap '20 



See also Electrohorticulture; Heliotropism 

 Plants, Effect of minerals on 



Assimilation of nitrogen, phosphorus, and po- 

 tassium bv corn when nutrient salts are 

 confined to different roots. P. L. Gile and 

 J. O. Carrero. J Ag Research 21:545-73 Jl 15 

 '21 



Copper and zinc as antagonistic agents to the 

 alkali salts in soils. C. B. Lipman and 

 W. F. Gericke. Int R Sci & Prac Ag 9,no 

 12:1409-10 D '18 

 Plants, Effect of potassium salts on 

 Effect of potassium salts on the anatomy of 

 dactylis glomerata. O. N. Purvis, bibliog 

 J Ag Sci 9:338-65 O '19 

 Plants, Effect of salts on 

 Effect of lime upon the sodium-chlorid toler- 

 ance of wheat seedlings. J. A. LeClerc and 

 J. F. Breazeale. il J Ag Research 18:347- 

 56 Ja 2 '20 

 Effect of salts upon oxidase activity of apple 

 bark. D. H. Rose and others, bibliog Bot 

 Gaz 69:218-36 Mr '20 

 Effect upon permeability of polyvalent ca- 

 tions in combination with polyvalent an- 

 ions. O. L. Raber. bibliog Am J Bot 8: 

 3S2-5 O '21 

 Hydrogen-ion concentration relations in a 

 three-salt solution. H: F. A. Meier and C. 

 E. Halstead. bibliog il Soil Sci 11:325-52 My 

 '21 

 Influence of certain fertilizer salts on the 

 growth and nitrogen-content of some 

 legumes. A. MacTaggart. bibliog 11 Soil Sol 

 11:4.35-55 Je '21 

 Influence ot chlorides on the growth of cer- 

 tain agricultural plants. W. E. Tottingham 

 and G. W. Hendrv. Int R Sci & Prac Ag 

 10.no 7:847-9 Jl '19 

 Influence of sodium chloride upon the 

 physiological changes of living trees. W. 

 Rudolfs, bibliog il Soil Sci 8:397-425 N '19; 

 Abstract. Ag Gaz of Canada 7:711-12 Ag 

 '20 

 Role of osmotic pressure in the toxicity of 

 soluble salts. J. E. Greaves and Y. Lund, 

 bibliog Soil Sci 12:163-81 Ag '21 

 Toxicitv of alkali salts. T. M. Singh, bibliog 



Soil Sci 6:463-77 D '18 

 Variability of plants grown in water cul- 

 tures. A. R. Davis, bibliog Soil Sci 11:1-32 

 Ja '21 

 Plants, Effect of smoke on 



Air Dollution bv coal smoke. A. G. Ruston. 

 J Ministry Ag 27:69:77 Ap '20; Abstract. 

 Exp Sta Record 44:430-1 Ap '21 

 Smoke prolilem in suburban gardens, il Gard 

 M 29:26 F '19 

 Plants. Effect of strontium on 



Effect of certain compounds of barium and 

 strontium on the growth of plants. J. S. 

 McHargue. il J Ag Research 16:183-94 F 17 

 '19; Abstract. Int R Sci & Prac Ag 10, no 7: 

 850-1 Jl '19 

 Plants, Effect of temperature on 

 Alteration of cellular exchange and permea- 

 bilit>' at temperatures near freezing point. 

 E. Pantanelli. Int R Sci <& Prac Ag 10,no 

 7:844-5 Jl '19 

 Apparatus for automatically changing the 

 temperature of a chamber. G: F. Potter. 

 Am J Bot 7:39-43 Ja '20 

 Cold as a stimulus to growth. Lit Digest 



(354 4th av, N.Y. 10c) 69:21 Ap 16 '21 

 Effect of a late spring frost upon forest veg- 

 etation in the Wasatch mountains of Utah. 

 C. F. Korstian. bibliog il Ecol 2:47-52 Ja 

 '21 

 Effect ot premature freezing on composition 

 of wheat. M. J. Blish. bibliog J Ag Re- 

 search 19:181-8 My 15 "20 

 Effect of two soil temperatures on the yield 

 and water relations of healthy and diseased 

 bean plants. W. H. Burkholder. il Ecol 1: 

 113-23 Ap '20 ^ . 



Evaluation of climatic temperature eflticiency 

 for the ripening processes in sweetcorn. C: 

 O. Appleman and S. V. Eaton. J Ag Re- 

 search 20:795-805 Mr 1 '21 

 Experiments on the resistance of plants to 

 cold. E. Pantanelli. Int R Sci & Prac Ag 

 9. no 12:1416-17 D '18 

 Formative effect of high and low tempera- 

 tures upon growth of barley; a chemical 

 correlation. H. L. Walster. bibliog il Bot 

 Gaz 69:97-126 F '20 ^ ^ ^^ 



Frost and the plants' awakening. Gard Chron 



Am 24:395 Ja '20 

 Frost injurv of potatoes. H. G. MacMillan. 

 il Phvt 10:423-4 S '20 



