Effect of storage period, seed moisture content and insecticides treatment on wheat (Triticum aestivum L) seed quality
Abstract: Seed moisture content, insecticides treatment and storage period were the main factors affecting wheat seed quality as measured by germination percentage, seedling vigour traits, insect infestation severity and seed dry weight losses. Laboratory experiments were conducted at Seed Technology Unit Lab. Mansoura, Dakhlia during 2004/2005 season to study the effect of four storage periods (0, 6, 12 and 18 months), three seed moisture contents (12 %, 15 % and 18 %) and eight insecticides seed treatments i.e. (control, malathion 57 %, fumigation with phosphine at temperature degrees 30, 35 and 40ْ C, fumigation at 30, 35 and 40ْ C+ malathion). The results revealed that prolonging storage period and high seed moisture content reduced germinability (as measured by germination percentage, germination index and germination rate), seedling vigour (plumule, radical lengths, seedling dry weight and its vigour index) and accelerated seed aging. Meanwhile, increasing storage period and high seed moisture content increased mean germination time, electrical conductivity, insect infestation and dry weight losses of the seed. Treating wheat seed with malathion 57%, fumigation at temperature degrees of 30, 35ْ C, fumigation at 30ْ C + malathion did show harmful effects on seed germination or seedling vigour.

On contrast, fumigation at 40ْ C, fumigation at 35ْ C + malathion and fumigation at 40ْ C + malathion had an adverse effect on seed germination and seedlings vigour traits. Treatments with insecticides can protect wheat seed from any insect infestation more than 6 months. The infestation level was slight for 12 months compared with the untreated seeds. All studied traits negatively and significantly correlated with storage periods and seed moisture contents except mean germination time, electrical conductivity, insect infestation % and seed dry weight loss while significant and positive correlations were obtained. Insect infestation had negatively and significantly correlated with all studied traits except for mean germination time and electrical conductivity while significant positive correlations were noticed. The results suggested treating wheat seed with malathion 57%, fumigation with phosphine at 35ْ C, fumigation at 30ْ C + malathion without harmful effects on wheat (c.v. Gemmiza 7) seed quality or seedlings vigour provided that the seed moisture content should be ranged between (12 – 15 %)
Publication year 2006
Pages 111- 124
Availability location معهد بحوث المحاصيل الحقلية-مركز البحوث الزراعية -8ش الجامعه الجيزة
Availability number
Organization Name
City القاهرة
serial title حوليات العلوم الزراعية بمشتهر
ISSN 1110-0419
Department Seed Technology Research
Author(s) from ARC
Publication Type Journal
↑