geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

A method for determining the biological effect of herbicide mixtures


, : A method for determining the biological effect of herbicide mixtures. Weed Science 29(4): 469-473

Experiments were conducted in growth chambers by growing oats (Avena sativa L. 'Ansi') in water culture and soil with admixed TCA (trichloroacetic acid), pyrazon [5-amino-4-chloro-2-phenyl-3-(2H)-pyridazinone], and 2 mixtures (pyrazon: less TCA; 1:25 and 1:50). The sigmoid log-dose relationship for dry matter yield was fitted with a 4-parameter logistic equation. Generally, the mixtures appeared less active than would be expected under an additive dose model. Around GR50 the departure of joint action of the mixtures from the reference model was almost similar in the 2 growth media. At higher dose levels the mixtures approached the reference model, and the bioactivity of 1 mixture (1:25) in the water culture experiment even showed a higher activity than would be expected from the reference model.

US$19.90

DOI: 10.2307/4043333


Other references

Bhargava, K.K.; Ashok Bhatnagar; Sharma, H.C., 2003: Bioefficacy of imidacloprid and beta-cyfluthrin for the management of insect pests of brinjal. The efficacy of monocrotophos (360 g a.i./ha) and imidacloprid (15 or 20 g a.i./ha), in combination with beta-cyfluthrin (12.50 and 18.75 g a.i./ha), applied 60, 75 and 90 days after transplanting, against Amrasca biguttula biguttula and Leucinode...

Anonymous, 1986: Major parasitic infections: a global review. Parasitic Diseases Programme. World Health Organization, Geneva. World Health Statistics Quarterly. Rapport Trimestriel de Statistiques Sanitaires Mondiales 39(2): 145-160

Wulf, J., 1974: Ornithologische Studien in der SR Rumanien. Falke, 218: 277-281

Li, R.; Sharma, B.Nath.; Linder, S.; Gutteberg, T.Jarl.; Hirsch, H.H.; Rinaldo, C.Hanssen., 2013: Characteristics of polyomavirus BK (BKPyV) infection in primary human urothelial cells. High-level polyomavirus BK (BKPyV) replication in urothelial cells is a hallmark of polyomavirus-associated hemorrhagic cystitis (PyVHC), a painful condition affecting bone marrow transplant recipients. In kidney transplant recipients, replication...

Sanbonsugi, M., 1939: Some new localities of Toucasia carinata (Math.) var. orientalis Nagao in Hokkaido. Journal of the Geological Society of Japan, 46547: 198

D.Leval, J., 1972: Testicular myeloma. Acta Urologica Belgica 40(3): 597-603

Aristarain L.F.; Hurlbut C.S.J., 1967: Ameghinite, Na sub 2 O3B sub 2 O sub 3 4H sub 2 O, a new borate from Argentina. Mineral description, x-ray data, chemical analysis, DTA, Tincalayu borax deposit.

Gandjour, A., 1972: T-waves in the electrocardiogram of the newborn infant. Deutsche Medizinische Wochenschrift 97(26): 1016-1016

Pickett, T.J., 1993: Practice what we teach. Work 3(2): 77-77

Goedert, J., 2002: I.T. targets the uninsured. Health Data Management 10(11): 40-2, 44