Open AccessThe kinetics of pesticides and UVC irradiation effect on the rate of shallot (Allium cepa var ascalonicum L. Back) seed quality change during storage
Author(s) -
Nfn Siswanto,
Nursigit Bintoro,
Joko Nugroho Wahyu Karyadi,
Sri Rahayoe,
Suryanti Suryanti
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/828/1/012043
Subject(s) - pesticide , toxicology , horticulture , bulb , chemistry , zoology , biology , agronomy
During storage, shallot seed experiences a decreased quality in the form of weight loss and bulbs damage. Therefore, this study aims to examine the kinetics of pesticides and UVC irradiation effect on the rate of shallot seed bulb quality change during storage. Four different pesticide applications (control, systemic, contact and contact + systemic) and four levels of UVC irradiation time (control, 2, 7 and 12 hours) with 3 replications were used. After being treated, the selected shallot samples were stored for 90 days and continuously monitored. It was found that fungi increase followed first and zero orders with k values between −6 × 10 6 to 676.190. The damage and weight loss percentages followed zero-order with k values between −0.427 to −0.0233. The pesticides and UVC irradiation affected shallot quality, where the best treatment was systemic pesticides application combined with UVC irradiation for 7 hours. This led to 3.75 × 10 7 fungal spores (control 1.17 × 10 9 ), 1.59% bulbs damage (control 3.4%) and 10.12% weight loss (control 21.05%), with the value of k= −228.571, −0.0233, and −0.0978 as well as R 2 = 0.3248, 0.8494, and 0.9924 respectively.