Authors:
C. Marton Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár Hungary

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L. Kálmán Cereal Research Non-Profit Company Szeged Hungary

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T. Árendás Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár Hungary

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P. Bónis Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár Hungary

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D. Szieberth National Institute for Agricultural Quality Control Budapest Hungary

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A new method has been elaborated to estimate the length of the vegetation period of new maize hybrids. According to this method, the length of the vegetation period is expressed by the FAO number, calculated from the following traits:

  1. 1. 50% silking
  2. 2. Grain moisture when the average grain moisture of maturity group standards is 25%
  3. 3. Grain moisture when the average grain moisture of maturity group standards is 20%
  4. 4. Grain moisture at harvest.
The standards of the neighbouring maturity groups are also included in each experiment.The results obtained with this method were compared to the heat unit (GDD) method and to other methods of calculating FAO numbers. The new method has several advantages over previous techniques based on moisture content alone: the fluctuation of the estimated FAO number over locations and years decreased, as did the significant differences between the calculated FAO numbers; the reliability and precision of the new FAO number is less dependent on the date of harvest (moisture content); and the FAO numbers calculated with the new method are in the closest correlation with the heat unit estimates.

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  • Gilmore, E. C. Jr., Rogers, J. S. (1958): Heat units as a measure of measuring maturity in corn. Agron J. , 50 , 611–615.

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  • Marton, L. C., Berzsenyi, Z., Szundy, T., Árendás, T., Bónis, P. (1999): Különböző tenyészidejű kukoricahibridek termőképességének és szemnedvességének összehasonlító értékelése. (Comparative evaluation of the yield potential and grain moisture content of maize hybrids in different maturity groups.) pp. 85–89. In: Ruzsányi L., Lesznyák, M., Jávor, A. (eds.), Tiszántúli Mezőgazdasági Tudományos Napok , Debrecen, 29–29 October 1999.

  • Marton, L. C., Szieberth, D., Csürös, M. (2001): A kukorica FAO számának meghatározása. (Determination of maize FAO numbers.) pp. 61–67. In: Pepó, P., Jolánkai, M. (eds.), Proc. II. Növénytermesztési Tudományos Nap . MTA, Budapest.

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  • Neduczáné Krékity, M. (1998): Szemes-és silókukorica fajták bejelentésének, vizsgálatának és minősitésének rendszere . (System for the testing and registration of grain and silage maize varieties.) OMMI, Budapest. 13 p.

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  • Szieberth, D. (2000): Szemes-és silókukorica fajták bejelentése, vizsgálata és állami elismerése . (Testing and registration of grain and silage maize varieties.) OMMI, Budapest. 16 p.

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Acta Agronomica Hungarica
Language English
Russian
German
French
Size  
Year of
Foundation
1950
Publication
Programme
ceased
Volumes
per Year
 
Issues
per Year
 
Founder Magyar Tudományos Akadémia   
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-0161 (Print)
ISSN 1588-2527 (Online)

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