ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Fungal deterioration of melon seeds stored in jute sacks and polyethylene bags in Ago-Iwoye, southwestern Nigeria.

Bankole, S. A.; Ikotun, B.; Ekpo, E. J. A.;

Mycopathologia Year: 1999 Vol: 146 Issue: 3 Pages: 135-146 Ref: 41 ref.

1999

บทคัดย่อ

Laboratory studies were carried out in the Department of Biological Sciences, Ogun State University, Ago-Iwoye, southwestern Nigeria, to determine the extent of fungal deterioration of melon seeds stored in two types of storage bags: jute and polyethylene bags. Melon seeds of varieties Tc139 and V2 were stored in jute and polyethylene bags under ambient conditions using the 2x2 factorial design (variety vs. type of bag) for 12 months. The moisture content (mc), incidence of visible mouldiness (ivm) and germinability of the stored seeds were determined monthly. The mc of Tc139 ranged from 6.1 to 6.7% in jute and 6.2 to 6.5% in polyethylene bags. The ivm which was initially 2.1% increased to 10.7% and 5.5% in jute and polyethylene bags respectively, after 12 months in storage. The germination percentage decreased from 96.3% to 28.7% and 45.3% in jute and polyethylene bags, respectively. The mc of V2 stored in jute and polyethylene bags varied from 5.9 to 6.4%, and 5.8 to 6.2%, respectively. The iv

m increased from 1.8% before storage to 8.9% and 4.8% in jute and polyethylene bags, respectively, after 12 months. The percentage seed germination declined from 98.0% to 37.3% in jute and 48.7% in polyethylene bags after 12 months. Decreased incidence of field fungi namely: Alternaria, Botryodiplodia theobromae, Cladosporium, Fusarium and Macrophomina phaseolina was accompanied by simultaneous increase in storage fungi: Aspergillus, Penicillium, and Rhizopus with prolonged storage.