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Biological activity of two neem seed kernel extracts against the two-spotted spider mite Tetranychus urticae Koch

✍ Scribed by Nadia Z. Dimetry; S. A. A. Amer; A. S. Reda


Book ID
115153981
Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
320 KB
Volume
116
Category
Article
ISSN
0931-2048

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The morphology and behaviour of the holokinetic chromosomes of Tetranychus urticae Koch were studied in maturing oocytes from diplotene up to and including metaphase. Each of the three diplotene bivalents contains 2-3 chiasmata. During congression the dyads of the axially orientated bivalents make