SVIBOR - Project code: 4-01-041

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 4-01-041


DEVELOPMENT OF HIGH-YIELDING MAIZE HYBRIDS WITH WIDE ADAPATABILITY


Main researcher: PARLOV, DRAGOMIR (76111)


Assistants
Type of research: applied
Duration from: 04/30/91. to 04/30/95.
Papers on project (total): 83
Papers on project quoted in Current Contents: 4
Institution name: B.C.Institut za oplemenjivanje i proizvodnju bilja, Zagreb (106)
Department/Institute: Maize Department
Address: Marulićev trg 5/I
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0) 41 459-200
Phone: 385 (0) 41 750-311
Fax: 385 (0) 41 446-645
Fax: 385 (0) 41 750-523
Summary: During the past tri years of the project the work progressed according to the established procedure. From source populations developed from domestic germplasm and best elite materials from worldwide, selfed plants were chosen on the basis of phenological observations. Thus selected, ears are planted following the ear-to-row method. In the third year of inbreeding, test crossings were conducted with elite testers and testcrosses were planted in trials. In 1992, trials were laid in Rugvica, Pitomača and Kutjevo with 25 entries and two replications: in FAO grup 100 7 trials; FAO 200 30, FAO 300 36; FAO 400 51; FAO 500 48; FAO 600 18, and FAO 700 9 trials. In 1993, trials with 25 entries and three replications were planted in Rugvica and Kutjevo: in FAO 100 10 trials; FAO 200 22; FAO 300 38; FAO 400 48; FAO 500 28, and FAO 600 16 trials. Early testing provides first knowledge on genotype value and adaptability of the tested material, and allows change of the initial material at an early stage of breeding. Selected materials continue their way in breeding process until final aim is achieved - released inbred line and its participation as a parental component in a hybrid. As a result of testing hybrid combinations agains standards (domestic and foreign hybrids), in each maturity group FAO 100-700 there are combinations that represent a basis for further investigations. Through the process of inbreeding, homozygosity is increased from year to year. Testing of hybrid combinations at several locations and years applying adequate statistical analysis are a means that assures success in this work. Unfortunately, because of the impossibility to conduct experiments in Baranja and eastern Slavonija, the project is not following the foreseen programe.

Keywords: maize (Zea mays L.), inbred line, hybrid combination, kernel type, genetic variability, genetic potential, high yields, wide adaptability, physiological capacity, stress factors, environment

Research goals: The aim of the investigations is to develop an inbred line that will, as a parent in combination with the other parent, produce a high-yielding hybrid with wide adaptability. Past investigations have yielded several hybrid combinations that have better agronomic traits in comparison with standards (foreign and domestic hybrids). It is a guarantee for increased yields in maize production and for lesser dependance on foreign scientific investigations in this field.

COOPERATION - INSTITUTIONS


  1. Name of institution: Saatzucht Dr.h.c. R. Carsten
    Type of institution: Other
    City: Bad Schwarten, Njemačka

  2. Name of institution: Gabonatermesztesi Kutatointezet
    Type of institution: University/Faculty
    City: Szeged, Mađarska

  3. Name of institution: Kmetijski inštitut Slovenije
    Type of institution: University/Faculty
    City: Ljubljana, Slovenija

  4. Name of institution: APZ Anhaltische Pflanzenzucht GMBH Bernburg
    Type of institution: University/Faculty
    City: Bernburg, Njemačka

  5. Name of institution: Iowa State University
    Type of institution: Economical/Production
    City: Ames, Iowa, SAD

  6. Name of institution: COOP DE PAU
    Type of institution: University/Faculty
    City: Lascar, Francuska

  7. Name of institution: Instituti i misrit dhe orizit
    Type of institution: University/Faculty
    City: Shkoder, Albanija
Other information about the project.
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Last update: 11/07/95
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