944 



AGRICULTURAL INDEX 



Root rot — Continued 



Root icts damage millions of bushels of cofn 

 yearly. Weekly N L 8:1-2 F 23 '21 

 See also Corn rootrot 

 Roots 



Daily rhythms of elongation and cell divi- 

 sion in certain roots. R. C. Friesner. bib- 

 liog- Am J Bot 7:. 380- 406 N '20 



Development of root systems under dune 

 conditions; with discussion. W. G. Water- 

 man, bibllog 11 Bot Gaz 68:22-53 JI '19 



Ecological relations of roots. W. A. Can- 

 non. Science (Garrison, N.T. 15c) n s 51: 

 393-4 Ap 16 '20 



Ecological relations of roots, hv J: E. Weaver. 

 Review. J For 17:990-3 D '19 



Effect of direct current on cells of root tip 

 of Canada field pea. H: F. A. Meiler. bib- 

 liog il Bot Gaz 72:113-38 S '21 



Effect of season on the regeneration of sour 

 orange roots. F. F. Halma. il Cal Citro- 

 graph 6:273 Je '21 



Excretion of toxins from the roots of 

 plants. J. N. Mukerji. Ag J of India 15: 

 .502-7 S '20 



How roots are grown, il Farmer's Advocate 

 56:654 Ap 21 '21 



Influence of the roots of growing plants upon 

 the activity of soil micro-organisms as in- 

 dicated by the production of carbon diox- 

 ide from the soil. J. R. Neller. N J Ag Exp 

 Rep 1917:414-15 '18 



Mechanism of root pressure and its relation 

 to sap flow. J. B. Overton. Am J Bot 8:369- 

 74 Jl '21 



New discoveries concerning the manner in 

 which roots absorb water. 11 Sci Am (233 

 Broadway, N.T. 10c) 121:140 Ag 9 '19 



Note on the histology of grain roots. G. A. 

 Dunn, il Am J Bot 8:207-11 Ap '21 



On the absorptive power of the tips of roots. 

 H. Coupin. Int R Sci & Prac Ag 10, no 5: 

 537-8 My '19 



Relation of aeration to the growth and activ- 

 ity of roots and its influence on the ecesis 

 of plants in swamps. H. F. Bergman, bibliog 

 Ann Bot 34:13-33 Ja '20 



Resi.stance of the loots of iiome fruit species 

 to low temperature. D. B. Carrick. bibliog 

 il Cornell Ag Exp Memoir 36:613-61 '20 



Root absorption from solutions at minimum 

 concentrations. R. B. Harvev and R. H. 

 True. Am J Bot 5:516-21 D '18 



Root development in barley and wheat under 

 different conditions of growth. W. E. 

 Brenchley and V. G. Jackson. Ann Bot 35: 

 533-56 O '21 



Root development in the grassland forma- 

 tion, by J: E. Weaver. Review. A. E. Wal- 

 ler. Ecol 2:145-9 Ap '21 



Root-hairs and transplanting. C. O. Orms- 

 bee. Market Growers J 29:136 O 1 '21 



Root systems. G: D. Fuller. Bot Gaz 69: 

 351-4 Ap '20 



Roots of plants and oxygen supply. Gard 

 Chron (Lond) 69:241 My 21 '21 



Secretion of amylase by plant roots. I>. 

 Knud.son and R. S. Smith, bibliog il Bot 

 Gaz 68:460-6 D "19 



Secretion of invertase by plant roots. L. 

 Knudson. bibliog il Am J Bot 7:371-9 N 

 '20 



Some anomalies in monocotyledonous roots. 

 A. V. Spratt. bibliog il Ann Bot 34:99-105 Ja 

 '20 



Some observations on the roots of fruit trees. 



W'. Burns and L. B. Kulkarni. il Ag J of 



India 15:620-6 N '20 

 Stimulation of root growth in cuttings bv 



treatment with chemical compounds. O. F. 



Curtis, bibliog il Cornell Ag Exp Memoir 14: 



75-138 '18; Same. Cornell Ag Exp Rep 1919. 



v 1:75-138 '20 

 Study of the influence of the root system 



in nromoting hprdine.«s in alfalfa W 



Southworth. il Sci Ag 1:5-9 Ja '21 

 Tap-rooted plants improve soils. H. L Frost 



Breeder's Gaz 79:1108 Je 23 '21 

 Temporary roots of the sorghums. J: B. 



Sieglinger. Am Soc Agron J 12:143-5 Ap 



Thick-walled root hairs of gleditsia and re- 

 lated genera. W. B. McDougall. il Am J 

 Bot 8:171-5 Mr '21 



Toxic root-interference in plants. Ag J of 

 India 16:325-9 My '21; Abstract. Ag News 

 20:57 F 19 '21 



What factors influence seed yields in roots'." 

 M. O. Malte. Farmer's Advocate 55:418 Mr 

 4 '20 



Why roots grow downward; the modern sta- 

 tolithic theory of the geotropic action of 

 roots. H. Van Guttenberg. Sci Am Month- 

 ly (233 Broadway, N.Y. 60c) 3:311-14 Ap 

 '21 



i^cc also Root crops 

 Rope 

 Rope and cordage manufacture in Canada. 



London Times Trade Sup Canadian Sect: 



27 O 23 '20 

 Rope Kuu its uses on the farm. H. T. Niece. 



il Idaho Ag Ext B 28:1-16 'I'J 

 See also Knots and splices 

 Ropy milk. See Milk — Bacteriology 

 Roquefort cheese. See Cheese 

 Rose. See Roses 

 Rose aphis 

 Three pink and green aphids of the rose. E. 



M. Patch. Maine Ag Exp B 282:205-48 '19; 



Same. Maine Ag Exp Rep 1919:205-48 

 Rose canker 

 Brown canker of roses, cavised by diaporthe 



umbrina. A. E. Jenkins, il J Ag Research 15: 



593-600 D 16 'IS 

 Canker control. Am Flor 51:519 O 5 '18 

 Ciown canker in roses. Gard Chron (Lond) 



65:277 Je 7 '19 

 Rose garden husband; story. M. Widdemer. 



See semi-monthly numbers of Dakota 



farmer, July 1-Dec. 1, 1919 

 Rose mallows. See Hibiscus 

 Rose midges 

 Rose midge. Am Flor 55:195 Ag 14 '20 

 Rose midge. E. R. Sasscer and A. D. Borden. 



bibliog il U S Ag B 778:1-8 '19 

 Rose midge in Ontario. W: A. Ross, il Ag 



Gaz of Canada 6:137-8 F '19 

 Roselle 

 Cultivation and uses of roselle. P. J. Wester. 



il Philippine Ag R 13,no 2:89-99 '20 

 Growing roselle. R. W. Hodgson. il Cal 



Cultivator 54:484 Mr 20 '20 

 Possibilities of developing roselle fibre as a 



cottage or other industry in the Federated 



]\Ialay States. F. W. South. Ag B Fed Malay 



States 9:23-6 Ja '21 

 Rosen rye. See Rye — Varieties 

 Roses 

 About roses. A. C. Hottes. il Ohio Ag Ext B 



v 15.no 5:1-16 '19-'20 

 American rose annvial. Review. Gard Chron 



(Lond) 65:237 My 17 '19 

 American rose annual. Review. Gard Chron 



(Lond) 67:251 My 22 '20 

 American rose garden in the French man- 

 ner. A. Steele, il Gard M 31:312-13 Jl '20 

 American rose society; department of regis- 

 tration. Am Flor 54:158 F 7 '20 

 Among the new natural roses. J. H. Mc- 



Farland. il House and Gard (19 W. 44th 



St, N.Y. 35c) 39:40-1 Ap '21 

 Australasian rose book, by R. G. Elliott. 



Review. Gard Chron (Lond) 68:129 S 11 '20 

 Autumn show of roses in the R.H.S. hall, 



Westminster. Gard Chron (Lond) 68:173 O 



2 '20 

 Bedding roses. Am Flor ."6:98 Ja 29 '21 

 Best varieties of roses for the South. L. A. 



Niven. Prog F 34:1500 S 20 '19 

 Better climbing roses. J. H. McFarland. i! 



Country Gent 85:64 My 15 '20 

 Budding roses. T. Sheward. il Rural N Y 



78:9.=;8 Je 14 '19 

 Care of roses. Nat Stock & F 45:465 Ag 6 '21 

 Care of the young stock, il Am Flor 52:1088 



Je 21 '19 

 Citv rose garden. H. J. Moore. Gard Chron 



Am 23:361-2 N '19 

 Clinibing roses. E. Molvneux. il Gard Chron 



(Lond> 68:141 S 18 '20 



