Effect of storage containers and time on seed quality of wheat

Abstract

A study was undertaken to determine the prevalence of black point and percentages of germination, moisture content and different fungi associated with wheat seeds during storage in different types of container. Seeds of a widely cultivated variety Kanchan were stored in five types of containers viz., 'dole'(bamboo made), earthen pitcher, tin container, polyethylene bag and refrigerator (10 0 C) for ten months at room temperature. Samples were taken at monthly interval beginning from the month of April (prior to storage). The seed moisture content and black point severity were found highest in dole resulting in the lowest percentage of seed germination. The highest germination percentage was observed under storage in refrigerator followed by polyethylene bag, tin container and earthen pitcher. The moisture content and black point infection increased and seed germination decreased with the increase of storage period. Prior to storage in April, the seed germination was 95%, which decreased to about 75% at the end often months of storage (in January). Various fungal flora associated with wheat seeds differed in their prevalence depending on the length of storage period and types of container used for storage. The population of field fungi viz., Alternaria alternata, Aiternaria triticina, Bipolaris sorokiniana, Cladosporium cladosporioides, Curvularia lunata, Epicoccum purpurascens and Fusarium spp. decreased while that of storage fungi viz., Aspergillus, Chaetomium, Nigrospora, Penicillium and Rhizopus increased with the progress of storage period.

Effect of Storage Duration and Package Materials on Viability and Grain Chemical Composition of Two Bread Wheat Cultivars

“…Conversely, increasing storage period from June to November significantly decreased germination percent from (91.20 to 65.41%), root and shoot length by (19.50 and 30.39%), respectively, and shoot dry weight (42.31%). Similar results were reported by Paders et al (1997) and Malaker et al (2008) who reported decreasing of seed germination from 95% to about 75% at the end of ten months of storage.…”

Qualidade fisiológica das sementes de soja armazenadas em diferentes condições

“…A temperatura e a umidade relativa são determinantes no processo de perda de viabilidade de sementes durante o armazenamento e alterações na qualidade do produto e, em contrapartida, dos subprodutos (Kong et al, 2008;Malaker et al, 2008).…”

Changes in Fungal Population and Aflatoxin Levels and Assessment of Major Aflatoxin Types in Stored Peanuts (Arachis hypogaea Linnaeus)

“…Aflatoxin contamination can occur at pre-and post-harvest stages (Waliyar et al, 2005). During storage, peanuts are prone to various types of deterioration some of which are attributed to growth of storage fungi which cause decrease of germination ability, loss in kernel weight, discoloration of kernels, heating and mustiness, chemical and nutritional changes, and mycotoxin contamination (Malaker, Mian, Bhuiyah, Akanda, & Reza, 2008).…”