Naslov
The efficacy of soybean seed treatment with Vitavax in the laboratory and field evaluation of seed vigor

Autori
Teklić, Tihana ; Andrić, Luka ; Jug, Irena ; Parađiković, Nada ; Pavleković, Brigita

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of contributed papers and posters: VII World Soybean Research Conference, IV International Soybean Processing and Utilization Conference, III Congresso Brasileiro de Soja. / Moscardi, Flavio et al. - Londrina : Embrapa, 2004, 157---

Skup
VII World Soybean Research Conference, IV International Soybean Processing and Utilization Conference, III Congresso Brasileiro de Soja

Mjesto i datum
Foz do Iguaçu, Brazil, 29.02.2004. - 05.03.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
soybean seed ; Vitavax ; laboratory ; field evaluation ; seed vigor

Sažetak
Soybean seed treatment fungicides could improve stand establishment if the conditions at planting are not favorable for rapid germination and emergence, what favors early- season soybean diseases. Seed ageing is also an important cause of low vigor and bad performance, especially in adverse seedbed conditions. Therefore, in this investigation, soybean seed vigor was tested by three laboratory tests (germination energy, standard germination test and cold test) and in a field trial, as well. The seed of selected Croatian soybean cultivars (five cultivars from maturity groups 0 to I) was stored in a warehouse for 6, 18 and 30 months prior to testing. In general, laboratory evaluation of seed vigor showed that seed age was the most important limiting factor (P>0.01) and highly significant positive influence of treatment with Vitavax on seed vigor. In a field trial, the planting was done on early and optimal planting date, considering the climatic conditions in eastern Croatia. The influences of seed age, Vitavax treatment and cultivar on the field emergence at V1 stage were significant (P>0.01) in both planting dates. However, these factors were more important in unfavorable conditions at early planting. The influence of seed treatment with Vitavax was the strongest in 18 months old seed group. The cultivar differences significantly rose with seed age and were more expressed in treated seed. Seed deterioration by ageing was more expressed in untreated seed. The connection among laboratory tests and field emergence was similar in treated and untreated seed, as well. At early planting, the strongest correlation was established between the field emergence and cold test (r = 0.949**, P>0.01) and in optimal planting date was between the field emergence and standard germination test (r = 0.943**, P>0.01). This investigation confirmed that seed treatment with Vitavax could be useful measure for improvement of soybean seed performance at early stand establishment, especially by carried over seed and in adverse conditions at planting.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA