Application of reduced doses of chlorsulfuron in semi-dwarf and full-height cultivars of winter triticale

Abstract

The aim of the field experiments carried out in the years 2009-2011 was to assess the application of reduced doses of chlorsulfuron on yield and quality parameters of winter triticale semi-dwarf and full-height cultivars. The herbicide effect was evaluated in two cultivars, Grenado and Pizarro. The cultivars were of different plant heights. Chlorsulfuron was applied at the recommended dose (15 g a.i. ∙ ha-1), at areduced dose (10.5 g a.i. ∙ ha-1) and at areduced dose with an adjuvant. Treatments with the herbicide were conducted directly after the triticale had been sown. Visual assessment of weed infestation was carried out in spring, after the start of the vegetation of the cultivated plant. The study assessed triticale grain yield, grain number per ear, thousand grain weight, and selected qualitative parameters of grain (protein and starch content). The obtained data proved the usefulness of reduced doses of chlorsulfuron in weed control both separately and in a combination with the adjuvant. The average percent of the weed control was very high for both cultivars and for the assessed doses of herbicide. Both experimental factors (herbicide dose and triticale cultivar) influenced the level of the obtained grain yield of triticale, and the thousand kernel weight. While grain number per ear and protein and starch content depended only on the examined cultivar

Is Diversified Crop Rotation an Effective Non-Chemical Strategy for Protecting Triticale Yield and Weed Diversity?

“…The superior efficacy of the DCR + H strategy over DCR in reducing weed biomass was expected, given the results of previous studies [51,66]. Although it was assumed that there would be no increase in triticale yield due to herbicide application, the observed increase is also not surprising considering the studies by other authors [67][68][69]. The higher yield achieved under the DCR + H strategy was associated with increases in the spike density and grain number per spike, indicating an increase in resource availability to the triticale crop once weed competition was reduced by the herbicide [48].…”

“…The generally lower number of productive tillers of the former was effectively compensated for by the higher grain number per spike and the greater 1000-grain weight. Genetic differences among triticale cultivars with respect to yield components are well documented in the literature [18,[69][70][71][72][73][74], and the Borowik cultivar has been noted for its particularly high 1000-grain weight [18].…”

Galinsoga parviflora Response to Different Application Rates of the Herbicide Chwastox Turbo 340 SL in Spring Barley

“…In contrast, Idziak and Woźnica (2013) found a large decrease in biomass after application of reduced rates of nicosulfuron applied alone and with adjuvant with respect to Viola arvensis, Echinochloa crus-galli, Polygonum convolvulus, P. aviculare, and Geranium pusillum. A study by Kaczmarek and Matysiak (2015) did not demonstrate significant differences in the weed control efficacy of chlorosulfuron between treatments where the herbicide was applied alone and treatments with adjuvant application.…”

Investigating the Impact of Soils’ Physicochemical Composition on Chlorsulfuron Pedospheric Sorption

“…Chlorsulfuron has been the first sulfonylurea herbicide in terms of commercialization. Chlorsulfuron finds major applicability for wiping out multiple weed species and is also used as a pre-emergent and postemergent herbicide on variety of weeds attacking the cereal crops [6,7,8]. Chlorsulfuron possess minor toxicity for mankind and other faunal species.…”