INTERNATIONAL SUNFLOWER ASSOCIATION

Sponsored by The Sunflower Association of America and The International Sunflower Association  Opening Session FOREWORD Ralph V. HAYENGA, Chairman  Session A - Agronomy SUNFLOWER ROLE IN DEVELOPING COUNTRIES  JAAP J.L. VAN WAALWIJK VAN DOORN ....................................... 1 SUNFLOWER DISEASE MAPPING IN EUROPE AND ADJACENT MEDITERRANEAN COUNTRIES W.E. SACKSTON .......................................................... 7 DEVELOPMENT OF THE JOINT RESEARCH ACTIVITY WITHIN THE F.A.O. COOPERATIVE NETWORK ON SUNFLOWER A.V. VRANCEANU ........................................................ 30SUNFLOWER IN AUSTRALIA OWEN W. DUNCAN ......................................................... 42 ACHIEVEMENTS OF SUNFLOWER BREEDING IN THE USSRA.V. PUKHALSKY, N.I. DVORYADKIN…

Volume 2 Section : Agronomy, Fertilizer, Irrigation, Plant Protection, Mechanization COR VAN EIJNATTEN Agronomic problems of sunflower in Kenya. ..... 5 B. PIECZKA, A. HORODYSKI The influence of soil-cultivation methods in the fall and spring on the yield of oilseed sunflower under polish cli-matic conditions .... 8 P.G. SEMIKHNENKO, A.N. RIGER Sunflower cultivation at a minimum number of treatments in spring and summer ….. 14 Gh. SIN, Cr. HERA, C. PINTILIE Improved cultural practices for sunflower hybrids ............. 19 V. KONDRATYEV, P. SEMIKHNENKO Period of sunflower planting and its nourishment area ........... 27 P.N. YAROSLAVSKAYA, P.Ya. BOGOMOLOV Anti-erosion soil cultivation for sunflower ............. 32 A.A. ZALI AND P. VOJDANI Adaptation of sunflower varieties cultivated in…

Opening of the Conference Information on the VIIth International Sunflower Conference ….. 5 Letter of Greetings to the Participants in the VIIth International Sunflower Conference from V,K. Mesyats, Minister of Agriculture USSR ….. 7 Speech of A,A. Goltsov, the USSR Deputy Minister of .Agriculture, President of the Organizing Committee the VIIth International Sunflower Conference ….. 8Greeting Speech of the Chairman of the Executive Committee of the Krasnodar Territorial Soviet (Council) of Working People's Deputies G.P. Razumovsky, .…… 12 Greetings to the Conference from the V.I. Lenin All-Union Academy of Agricultural Sciences : A,V. Pukhalsky….. 17 Greeting of the Members of the Council of the International Sunflower Association (Minutes) .... 20 Plenary Session A.S. NAVOLOTSKY,…

Volume II CULTURAL TECHNIQUES Effects of sowing uniformity on sunflower yield C.REMUSSI, H. SAUMELL, G.A. VIDAL APONTE (Argentina)...493The influence of fertilizers on sunflower yield and quality S.LICHEV, J. GUSHEVILOV, A. KUZMANOV (Bulgaria).... 499 Experimental results concerning the fertilizer application on sunflower in Romania Cr. HERA (Romania)........................505 Effects of systematic mineral fertilization on the uptake, distribution and removal of soil copper by sunflower plants N. MITREVA, V. ILIEV (Bulgaria)…………..521 Résultats des expériences relatives au contrôle des mauvaises herbes dans la culture du tourneol  L. CHIAPPOARINI, G.L. CUROTTI, G.F. GIROTTO, A. ROSANIA, F. TANO, G. VICENTINI (Italy)…. 531 Le Désherbage du tournesol en France  Yves REGNAULT…

Volume IOPENING SESSION Opening address delivered by Academician Professor Nicolae GIOSAN, President of the Academy of Agricultural and Forestry Sciences and President of the 6th International Sunflower Conference   7Speech delivered by Academician Professor Manea MANESCU,Prime Minister of the Government of the Socialist Republic of Romania    9A propos de la coopération en matière de recherches sur le tournesolA.CAUDERON (France)      13The world food situation in the years aheadJ. R. JENSMA (The Netherlands)   19 DEVELOPMENT OF SUNFLOWER GROWING IN VARIOUS COUNTRIES Sunflower growing in RomaniaN. GIOSAN (Romania)     9Main results in sunflower research in the U.S.S.R.N. I. DVOREADKIN (U.S.S.R.)    37Sunflower crops and their problems in BulgariaY. STOYANOVA (Bulgaria) 43Sunflower…

OPENING SESSION Allocution de M. CAUDERON  President of the 5th ISC.....................   3Allocution de M. Dalton E. GANDYPresident of the Executive Committee for Sunflower Conferences.............. 5The Economy of SunflowerDr. J.R. JENSMA................    7Allocution de M. PONS, State Secretary, Ministry of Agriculture & Rural Development............13   PHYSIOLOGY & PHYTOTECHNICS  Etude du bilan gazeux au niveau des couverts végétaux : premières applications à l'étude du tournesolH. ROBELIN ........................  19  Water Needs :  Evapotranspiration in a sunflower (Helianthus annuus L.) crop in a semi-arid zoneRafael GIMENEZ ORTIZ y Joaquim BERENGENA HERRERA .............    31Etude de la résistance à la sécheresse pendant différentes phases de végétation chez le tournesolLiana…