Field bindweed (Convolvulus arvensis L.) and redroot pigweed (Amaranthus retroflexus L.) control in potato by pre- or post-emergence applied flumioxazin and sulfosulfuron

Abstract

Field bindweed (Convolvulus arvensis L.) is one of the most serious weeds in potato (Solanum tuberosum L.), but selective herbicides controlling this weed have not been reported. A field experiment was conducted in 2010 and repeated in 2011 in Greece to study the efficacy of herbicides flumioxazin and sulfosulfuron, applied pre-or post-emergence, on field bindweed and redroot pigweed (Amaranthus retroflexus L.), as well as their phytotoxicity on potato. Gas chromatography-mass spectrography (GC-MS) and high-performance liquid chromatography (HPLC) analyses were conducted for possible herbicide residues in potato tubers. Also, the efficacy of these herbicides on field bindweed generated from root fragments was investigated in greenhouse pot experiments. In pots, both herbicides provided 78% to 100% control of field bindweed generated from root fragments. In field, both herbicides when applied pre-emergence at 72 to 144 g ai ha -1 provided 65% to 100% field bindweed control. However, the corresponding post-emergence applications did not provide satisfactory weed control. All treatments provided excellent control of redroot pigweed. Potato growth was not significantly affected by herbicide application in 2010. However, in 2011, post-emergence applications of flumioxazin caused significant crop injury and yield reduction. The results of this study indicate that satisfactory control of field bindweed and redroot pigweed, as well as high potato yield can be obtained by the pre-emergence application of flumioxazin or sulfosulfuron at 72 to 144 g ai ha -1 , without herbicide residues on potato tubers.

The Interplay among Polyamines and Nitrogen in Plant Stress Responses

“…So far, a large number of functional and regulatory genes implicated in abiotic and biotic stress responses have been identified in a diversity of plants. In particular, we characterized some functional or regulatory genes controlling metabolism of N, PAs, ethylene, and abscisic acid that are involved in various biological processes [22,33,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72].…”

Seed treatments alleviate dormancy of field bindweed (Convolvulus arvensisL.)

“…Field bindweed, a member of the Convolvulaceae family, is a serious perennial weed in major agricultural areas in temperate regions (Weaver and Riley 1982; Mitich 1991). Interference by field bindweed can severely reduce crop yields because of its competition for water, light, and nutrients, as well as the ability of its vines to climb, shade crops, and hinder harvesting (Karkanis et al 2012; Vasilakoglou et al 2013). In recent decades, field bindweed has increasingly become a problematic weed in cotton ( Gossypium hirsutum L.) fields and orchards in northwest China (Zhang et al 2016) because of a lack of effective control methods (Westwood and Weller 1997).…”

“…Difficulty in controlling field bindweed has been attributed to the persistence of its perennial root system (Swan and Chancellor 1976; Jurado-Expósito et al 2004). Root fragments and rhizomes are commonly used to regenerate field bindweed plants for experimental purposes such as biological or herbicide control studies (Boydston and Williams 2004; Vasilakoglou et al 2013). However, collection and pretreatment (cleaning, cutting, and measuring) of root fragments is time-consuming, and it is difficult to conserve these fragments in vitro and obtain uniform fragments for experiments as compared to seeds.…”

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“…Field bindweed is a problematic perennial weed in large number of crops (Vasilakoglou et al 2013). These weeds is generally difficult to control by chemical method because of pesticides application in agro ecosystems causing serious risks including environmental safety, water sources pollution as well as human and animal health (Husak et al 2016;Kroon, Hook et al 2014).…”