Sjemenarstvo, Vol. 15 No. 6, 1998.
Original scientific paper
IMPACT OF SOWING TIME AND MASS OF 1000 GRAINS ON SOME PROPERTIES OF MAIZE HYBRID 492
Mirko Gagro
; Visoko gospodarsko učilište u Križevcima, Križevci, Republika Hrvatska
Marcela Andreata-Koren
; Visoko gospodarsko učilište u Križevcima, Križevci, Republika Hrvatska
Zvjezdana Augustinović
; Visoko gospodarsko učilište u Križevcima, Križevci, Republika Hrvatska
Abstract
In four-year trials we investigated impact of sowing time in four of anting dates (first date 20-25 April, second date 1-5 May, third date 10-15 May and fourth date 20-25 May) and mass of thousand grains in three variants (to 300 gr, 300-400 gr and over 400 gr). In the first planting date the highest number of days was needed between sowing and sprouting, and the lowest number of days was needed in the last planting date, the difference was 2.00 days. Percentage of sprouted plants and number of plants at harvest was the lowest in the first planting date and the highest in the last planting date, difference was 2.58% and 3327 plants per ha respectively. The highest grain yield was obtained in the first planting date and it was 8724 kg/ha, in later dates it was lower and in the last planting date it was the lowest and was 8344 kg/ha, difference was 380 kg/ha. At mass of 300 gr of grains the highest number of days was needed between planting and sprouting, and the lowest number of days was needed at mass of over 400 gr, difference was 1.56 days. Percentage of sprouted plants and number of plants at harvest was the lowest at the lowest mass of grains to 300 gr, and the highest at the highest mass of over 400 gr, difference was 3.06% and 3406 plants per ha respectively. The highest grain yield was obtained with the highest mass grains over 400 gr and it was 8674 kg/ha, while the lowest yield was obtained with the lowest mass of grains to 300 gr and it was 8391 kg/ha, the difference was 283 kg/ha.
Keywords
maize hybrid; planting date; mass of 1000 grains; sprouting; number of plants at harvest; grain yield
Hrčak ID:
168215
URI
Publication date:
24.7.1998.
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