Bioassay and chemical control of wheat seed gall nematode Anguina tritici
Joint Authors
Tahir, Ibrahim Isa
Ami, Sulayman Nayif
Source
Issue
Vol. 18, Issue 1 العلوم الزراعية و البيطرية (30 Jun. 2015), pp.179-187, 9 p.
Publisher
Publication Date
2015-06-30
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Abstract EN
Bioassay results indicated that the fungicides Vitavax, Dividentand Dithane and herbicide Granstar caused mortality to second stage juveniles (J2) of A.tritici.
Higher mortality (89.12%) appeared after a week of immersion of J2 in Dithane at concentration 8 ppm while less mortality (16.63%) was with Vitavax at concentration 2ppm.Regression analysis and correlation coefficient showed positive relation between concentrations of pesticides and J2 mortality.
From toxicity lines, LC50 and relative toxicity Dithane was more toxic to nematode juveniles while Vitavax was less.
Chemical control of A.tritici by mixing of wheat seeds (Sham 6 cv.) with fungicides revealed that less infection percentage (35.68%) and number of galls (3) were recorded with Dithane in the third planting date ( 15 Jan.2011) compared to the control treatment.
In general fungicides slightly improved the growth and yield criteria of wheat plants and an obvious improvement in leaf area (19.92 cm²), harvest index (27.43) in the first (15 Nov.2010) and second planting dates ( 15 Dec.2010 ) respectively with Vitavax, weight of seeds (0.44gm) in the first planting date with Dithane and number of seed/spike (18.75) in third planting date with Dividant.
Depending on the number of galls, the third planting date may be the most suitable planting date.
Herbicide Granstar® caused a nonsignificant reduction in the infection criteria compared with non sprayed treatment while it caused significant increasing some growth and yield criteria including harvest index, weight of seed/spike, spike length, straw weight and number of seeds/spike
American Psychological Association (APA)
Ami, Sulayman Nayif& Tahir, Ibrahim Isa. 2015. Bioassay and chemical control of wheat seed gall nematode Anguina tritici. Journal of Dohuk University،Vol. 18, no. 1 العلوم الزراعية و البيطرية, pp.179-187.
https://search.emarefa.net/detail/BIM-799804
Modern Language Association (MLA)
Ami, Sulayman Nayif& Tahir, Ibrahim Isa. Bioassay and chemical control of wheat seed gall nematode Anguina tritici. Journal of Dohuk University Vol. 18, no. 1 Agricultural and Veterinary Sciences (Jun. 2015), pp.179-187.
https://search.emarefa.net/detail/BIM-799804
American Medical Association (AMA)
Ami, Sulayman Nayif& Tahir, Ibrahim Isa. Bioassay and chemical control of wheat seed gall nematode Anguina tritici. Journal of Dohuk University. 2015. Vol. 18, no. 1 العلوم الزراعية و البيطرية, pp.179-187.
https://search.emarefa.net/detail/BIM-799804
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 186
Record ID
BIM-799804