บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Seed health and viability of early maturing soybean cultivars produced in different planting dates and locations of Sao Paulo, Brazil.

Medina, P. F., Razera, L. F., Marcos Filho, J. and Bortoletto, N.

Summa Phytopathologica Year: 1997 Vol: 23 Issue: 3/4 Pages: 222-227 Ref: 24 ref.

1997

บทคัดย่อ

Seed health and viability of early maturing soybean cultivars produced in different planting dates and locations of Sao Paulo, Brazil.

Soyabean seeds of early maturing cultivars, produced at the traditional time (sown in November) in Sao Paulo, Brazil, often present problems associated with seedborne pathogens. The study was carried out with seeds of 5 early maturing cultivars (IAC-100, IAC-16, IAC-Foscarin-31, BR-4 and IAS-5) planted at 2 different dates (November and March/April) in Campinas and Votuporanga. The seed health tests were conducted immediately after harvest and at the time of next planting. The results showed that the healthiest soyabean seeds were obtained when the sowing date was delayed until the end of summer/beginning of autumn, for both seedborne pathogens and storage fungi. The seeds obtained were less infected by storage fungi at the time of next sowing due to the shorter storage period.