Morphology and Physiology - -Continued. 



686. HEWISON, H. K., and ABABIO, N. K. Flower and 

 fruit production of Theobroma cacao. Gold Coast Dept. 

 Agr. B. 22:87-94. 1930. 24 G56B 



687. HEYN, A. N. J. Die befruchtung bei Theobroma 

 cacao. K. Akad. yan Wetensch. te Amsterdam., Afd. 

 Natuurk., Proc, Sect. Sci. 33:533-541, illus. Ref. 1930. 

 503 Am8P 



688. HUBBENET, E. R. Zur frage iiber entwicklung 

 des blattes von Theobroma cacao. Akad. Nauk. SSSR. 

 Compt. Rend. 30:751-753, illus. Ref. Mar. 20, 1941. 

 511 P444 



689. HUMPHRIES, E. C. A consideration of the 

 factors controlling the opening of buds in the cacao tree 

 (Theobroma cacao). Ann. Bot. [London] (n. s.) 8:259-267. 

 Ref. Apr. /July 1944. 450 An7 



Effect of environmental factors, especially temperature, 

 on flushing frequency. 



689a. HUMPHRIES, E. C, and RODRIGUEZ, G. 

 Decomposition of cacao leaves under natural conditions. 

 J. Agr. Sci. (London) 35:247-253. Ref. Oct. 1945. 

 10 J822 



Laboratory study of absolute changes in the organic and 

 mineral constituents of cacao leaves during decomposi- 

 tion. 



690. HUMPHRIES, E. C. Dormancy of cacao buds. 

 I-in. Imp. Col. Trop. Agr. [Trinidad] Cacao Res. Rpt. 

 (1941/43) 11:28-38. Ref. 1944. 68.39 Cll 



R. K. McKee, joint author of II. 



I, A consideration of the factors concerned in the 

 breaking of the rest period; II, Carbohydrate changes 

 during the development of a flush; III, The relationship 

 between bud-bursting and growth of the whole tree. 



691. HUMPHRIES, E. C. Physiological and bio- 

 chemical researches in cacao in 1943-44. Trop. Agr. 

 [Trinidad] 22:66-68. Ref. Apr. 1945. 26 T754 



Physiological studies related to wilt of cacao fruits and 

 biochemical studies concerning tannins of the cacao bean 

 and some problems of fermentation. 



692. HUNGER, F. W. T. Kakao, Theobroma cacao L. 

 In Fruwirth, C, ed. Handbuch der landwirtschaftlichen 

 pflanzenziichtung, Bd. 5, Die zuchtung kolonialer 

 gewachse, Ed. 2, p. 162-179, illus. Ref. Berlin, Parey, 

 1923. 64 F94Z 



Morphology of flower and fruit, breeding and heredity, 

 budding and grafting. 



693. JOLLY, A. L. Biennial bearing in cacao. Trop. 

 Agr. [Trinidad]^ 21:164-165. Sept. 1944. 26 T754 



694. KOZLOV, V. K voprosu o plodonoshenii 

 shokoladnogo dereva v oranzhereiakh J^On the question of 

 fruiting of cacao in the greenhouse]. Sovet. Bot. 

 1933(3/4):198-203, illus. 1933. 450 So8 



695. KUIJPER, J. Die entwicklung des weiblichen 

 geschlects-apparats bei Theobroma cacao. Rec. des 

 Trav. Bot. N6erl. 11:37-43, illus. 1914. 451 N28R 



696. LAYCOCK, D. H., and DALE, W. T. Preliminary 

 investigations into the function of the endotrophic 

 mycorrhiza of Theobroma cacao L. Trop. Agr. [Trinidad] 

 22:77-80, illus. Ref. Apr. 1945. 26 T754 



697. MCCREARY, C. W. R., and others. The root 

 system of cacao. Results of some preliminary investiga- 

 tions in Trinidad. Trop. Agr. [Trinidad] 20:207-220, 

 illus. Ref. Nov. 1943. 26 T754 



J. A. McDonald, V. I. MuUoon, and Frederick Hardy, 

 joint authors. 



Root distribution in various soil types and relationship 

 between root distribution and soil characters. 



698. MCDONALD, J. A. The mineral nutrition of 

 plants. The possible application of recent ideas to the 



f:rowth and manuring of the cacao tree. Trop. Agr. 

 Trinidad] 12:11-15. Ref. Jan. 1935. 26 T754 



Discusses the role of the principal elements in plant 

 nutrition both singly and in relation to one another. 



699. MCDONALD, J. A. Progress of some detailed 

 investigations. Ill, Chemical composition of the leaves of 

 cacao in relation to environmental growth conditions, and 

 with special reference to thrips attack. Imp. Col. Trop. 

 Agr. [Trinidad] Cacao Res. Ann. Rpt. (1932) 2:ix-xii. Ref. 

 1933. 68.39 Cll 



700. MCDONALD, J. A. Some effects of deficiencies 

 of essential nutrient elements on the growth of young 

 cacao plants. Imp. Col. Trop. Agr. [Trinidad] Cacao Res. 

 Ann. Rpt. (1934)4:83-85, illus. 1935. 68.39 Cll 



701. MCDONALD, J. A. A study of the relationship 

 between nutrient supply and the chemical composition of 

 the cacao tree. Imp. Col. Trop. Agr. [Trinidad] Cacao 

 Res. Ann. Rpt. (1933)3:50-62. Ref. 1934. 68.39 Cll 



Morphology and Physiology --Continued. 



702. MADRID, P. Z. The effect of different soil media 

 on the rate of growth of cacao (Theobroma cacao L.) 

 seedlings. Philippine Agr. 22:172-188, illus. Ref. Aug. 



1933. 25 P542 



Thesis (B. S.)— University of the Philippines. 



Includes tables showing analyses of the different soil 

 media used, correlation coefficients of nutritive elements, 

 and summary of results. 



703. MARSHALL, J. Fertility in cacao. Imp. Col. 

 Trop. Agr. [Trinidad] Cacao Res. Ann. Rpt. (1933)3:34. 

 Ref. 1934. 68,39 Cll 



Abstract of dissertation. 



704. MASON, T. G., and MASKELL, E. J. Plant 

 physiological work in the Tropics. Some of the problems 

 with special reference to cocoa, and some lines of attack. 

 Imp. Hort. Conf. Proc. (1931)l(2):41-45. 1931. 90.09 Im7 



Problems discussed are the "shade problem," 

 vegetative growth, and cropping. 



705. MUNTZING, A. Some observations on pollination 

 and fruit setting in Ecuadorian cacao. Hereditas 33:397- 

 404, illus. Ref. 1947. 442.8 H42 



706. MURRAY, D. B. Some preliminary studies of 

 transpiration and carbon assimilation in cacao. Trop. 

 Agr. [Trinidad] 17:166-168, illus. Ref. Sept. 1940. 



26 T754 



707. NAUNDORF, G., \aLLAMIL G., F and , 

 MEDINA, J. Contribuci6n al estudio de la fisiologia de la 

 germinaci6n del cacao (Theobroma cacao L.). I. Las 

 substancias activas e inhibidoras y su influencia en la 

 germinaci6n. Palmira. Estac. Agr. Expt. Notas Agron. 

 3:63-86. Ref. Jan./ Apr. 1950. 102.5 P18N 



708. NAUNDORF, G., and VILLAMIL G.. F. Contri- 

 buci6n al estudio de la fisiologfa del cacao (Theobroma 

 cacao L.). Cafda premature y marchitamiento de los 

 frutos j6venes y posibles sistemas para evitarlo. 

 (Primera nota). Palmira. Estac. Agr. Expt. Notas Agron. 

 2:82-93. Ref. Oct./Nov. 1949. 102.5 P18N 



Deals chiefly with the relation between number of 

 flowers in a cushion and development of the fruit. 



709. NAUNDORF G., and VILLAMIL G.. F. Contri- 

 buci6n al estudio de la fisiologia del cacao (Theobroma 

 cacao L.). II. Tratamientos con fitohormonas y su 

 influencia sobre la cafda premature y marchitamiento de 

 las frutos jdvenes. Palmira. Estac. Agr. Expt. Notas 

 Agron. 3:87-90. Ref. Jan./ Apr. 1950. 102.5 P18N 



710. OSTENDORF, I. F. W. De bloeislaging van de 

 cacao. Bergcultures 13:1539-1544. Nov. 4, 1939. 

 22.5 B45 



Types of bloom (self-fertile and self-sterile) in cacao. 



711. OSTENDORF, F. W. Fertility of cacao. Chron. 

 Nat. 104:101-105. Ref. Apr. 1948. 514 B31 



Reviews previous literature, and reports work done at 

 Semarang Research Station, Java. 



712. PATERSON, A. W., and REED. R. L. Variation 

 in the size of Trinidad cacao beans and methods of its 

 assessment. Trop. Agr. [Trinidad] 11:252-261. Oct. 



1934. 26 T754 



713. POSNETTE, A. F. Incompatibility and pollina- 

 tion in cacao. Imp. Col. Trop. Agr. [Trinidad] Cacao Res. 

 Ann. Rpt. (1937)7:19-20. 1938. 68.39 Cll 



Summary of dissertation. 



714. POSNETTE, A. F. Incompatibility in Amazon 

 cacao. Trop. Agr. [Trinidad] 22:184-187. Ref. Oct. 

 1945. 26 T754 



715. POSNETTE, A. F. Inter-specific pollination in 

 Theobroma. Trop. Agr. [Trinidad] 22:188-190. Ref. Oct. 

 1945. 26 T754 



716. POSNETTE, A. F. Natural pollination of cocoa, 

 Theobroma leiocarpa, on the Gold Coast. Trop. Agr. 

 [Trinidad] 19:12-16, 188-191. Ref. Jan., Oct. 1942. 



26 T754 



716a. POSNETTE, A. F. The pollination of cacao in 

 the Gold Coast. J. Hort. Sci. 25:155-163, illus. Ref. 

 Apr. 1950. 80 J825 



717. POSNETTE, A. F. Pollination of cacao in 

 Trinidad. Trop. Agr. [Trinidad] 21:115-118. Ref. July 

 1944. 26 T754 



Includes review of literature since 1937, with special 

 reference to importance of Forcipomyia species as 

 agents of pollination. 



718. POSNETTE, A. F. Self-incompatibility in cocoa 

 (Theobroma cacao). West African Agr. Conf. Papers 

 3(1, Gold Coast):90-99. Ref. 1938. 27 W52 



Investigations carried out at Aburi, Gold Coast. 

 Also in Trop. Agr. [Trinidad] 17:67-71, Apr. 1940. 

 26 T754 



22 



