ORIGINAL ARTICLE
Adjuvant effects on plant growth regulators in winter wheat
 
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Institute of Plant Protection Miczurina 20, 60-318 Poznań, Poland
CORRESPONDING AUTHOR
Stanisław Stachecki
Institute of Plant Protection Miczurina 20, 60-318 Poznań, Poland
 
Journal of Plant Protection Research 2004;44(4):365–371
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ABSTRACT
The influence of adjuvants on the efficacy of the plant growth regulators: chlormequat chloride (CCC) and prohexadione-calcium was investigated in winter wheat in 2002 and 2003. Field trials were carried out in the Agricultural Experimental Farm in Winna Góra. The plant growth regulators were applied alone at normal rate and at a r educed rate with and without adjuvants. Two adjuvants were used: Adpros 85 SL, a methylated rapeseed oil and Break-Thru S-240, an organosilicone surfactant. Crop height, lodging, yield and quality of the harvested crop were assessed. Physicochemical properties of spray solution were measured. Adjuvants improved the biological activity of both, CCC and prohexadione-calcium, especially when reduced doses were applied. Efficacy of the plant growth regulators used at normal rate without adjuvant and at reduced rates with adjuvants was similar. Break-Thru S-240 increased the efficacy of CCC and prohexadione-calcium more compared to Adpros 85 SL measured in terms of reduction of plant heigh
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
REFERENCES (5)
1.
Baker E.A. 1995. The effect of the vegetable oil adjuvant Codacine on the foliar uptake and distribution of chlormequat chloride. Proceedings of the 4 th International Symposium on Adjuvants for Agrochemicals, ISAA 1995: 231–236.
 
2.
Mc Cabe T., Gallagher E.J. 1997. Evaluation of growth regulation treatments at two nitrogen levels on the winter wheat cultivar Ritmo in 1996. Research Reports of Faculty of Agriculture. at University. College Dublin, 1996–97. http://www.ucd.ie/agri/html/ho....
 
3.
Miller T., Kostka S.J., Zupancic J.W. 2001. Effect of Break Thru organosilicone surfactant on the efficacy of trinexapac-ethyl plant growth regulator. Proceedings of the 6 th Int. Symposium on Adjuvants for Agrochemicals, ISAA 2001: 275–279.
 
4.
Rademaher W., Kober R. 2003. Efficient use of prohexadione-Ca in pome fruits. Europ. J.Hort. Sci., 68 (3): 101–107.
 
5.
Woźnica Z., Matysiak R., Waniorek W. 1995. The effects of growth retardant Terpal C on winter wheat ( Triticum aestivum ) as influenced by adjuvant and spray carrier volume. Fragmenta Agronomica XII, 2 (46): 156–157.
 
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