Management practices effect on seed features of Italian ryegrass following storage period
Italian ryegrass seed crop was established in 2007 with two sowing densities (D1 = 60 cm row spacing and 5 kg ha-1 seeding rate; D2 = 20 cm row spacing and 20 kg ha-1 seeding rate) and using two spring nitrogen rates (0 and 150 kg N ha-1). Seed germination and thousand seed weight (TSW) of Italian r...
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Veröffentlicht in: | Biotechnology in animal husbandry 2014, Vol.30 (1), p.145-152 |
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Sprache: | eng |
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Zusammenfassung: | Italian ryegrass seed crop was established in 2007 with two sowing densities
(D1 = 60 cm row spacing and 5 kg ha-1 seeding rate; D2 = 20 cm row spacing
and 20 kg ha-1 seeding rate) and using two spring nitrogen rates (0 and 150
kg N ha-1). Seed germination and thousand seed weight (TSW) of Italian
ryegrass was observed in first production year. After harvest in June, seeds
were stored under standard storage conditions and sampled 90 days after
harvest (DAH), and then 2000 DAH. At 90 DAH, seeds were tested for TSW, as
well as germination energy and total germination percentage at incubation
temperatures of 10, 15, 20 and 25?C. Ryegrass seeds had the best germination
energy 90 DAH at 20?C and maximum total germination at 15?C, which implies
that early autumn (September-October) is proper sowing period for freshly
harvested seeds of Italian ryegrass. Italian ryegrass seeds could maintain
satisfactory germination energy (59.3%) and total germination (77.3%) up to
2000 DAH. High seed quality was obtained and applied treatments did not
change seed quality significantly unlike storage period which had
considerable influence on seed quality. The data can serve for the
determination of a proper storage duration management between harvest and
sowing of the tested species under ambient conditions of Serbia. |
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ISSN: | 1450-9156 2217-7140 |
DOI: | 10.2298/BAH1401145M |