Competitive Effects of Weeds on the Growth of Container-grown Plants

Berchielli-Robertson, Diana L.; Gilliam, Charles H.; Fare, Donna C.

doi:10.21273/hortsci.25.1.77

Cited by 43 publications

(47 citation statements)

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“…This negative effect on the growth of the cultivated plants can be the result of competition with weed plants for resources (light, water, and nutrients), but also of the release by weeds of root growth-inhibiting chemicals [4]. The latter is generally called allelopathy [29] and has been reported to be stronger in containers [4]. Another possible contribution to this negative effect can be due to the possible phytotoxicity of the herbicide.…”

Section: Resultsmentioning

confidence: 99%

“…In container cultivation, most of these negative effects may be amplified compared to open-field cultivations because of the reduced availability of growing media. Furthermore, the high fertility of the growth substrate often enhances weed growth rate compared to open-field cultivations [4]. Padgett and Frazier [5] estimated that manual weed control in nursery container cultivation requires 1542 h of labor per hectare.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradable mulching spray for weed control in the cultivation of containerized ornamental shrubs

Giaccone

Cirillo

Scognamiglio

et al. 2018

Chem. Biol. Technol. Agric.

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Background: Weed control represents a major issue in plant cultivation in containers. Manual weed control is very expensive and the use of chemical herbicide or plastic mulch films has a large environmental impact. The aim of this study was to test the efficacy of an experimental biodegradable chitosan-based mulching spray in controlling weed growth in containers. This research also studied the effect of this mulch on the growth of Viburnum lucidum Mill. plants to test for possible phytotoxic effects. Results:The study compared a total of six treatments derived from three types of weed control (no weed control; herbicide, oxadiazon; mulching spray) applied in containers either filled only with the sterile substrate or filled with the sterile substrate and then artificially inoculated with seeds of the weed species [Sonchus asper (L.) Hill subsp. asper and Epilobium montanum L.]. The mulch controlled the weeds effectively for more than 2 months after its application even under severe weed infestation. The mulching spray controlled the emergence of S. asper more efficiently than E. montanum plants, probably because the latter has a stronger capacity to penetrate the mulch film during emergence.Conclusions: Three months after its application, the mulch started to degrade and this allowed some weeds to emerge in the containers, but, in general, the mulch performed better than the herbicide. The chitosan-based mulch did not have any negative effective on the growth of V. lucidum plants.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biodegradable mulching spray for weed control in the cultivation of containerized ornamental shrubs

Giaccone

Cirillo

Scognamiglio

et al. 2018

Chem. Biol. Technol. Agric.

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“…Fretz (1972) demonstrated that one large redroot pigweed (Amaranthus retroflexus L.) or large crabgrass (Digitaria sanguinalis L.) reduced the growth of 'Convexa' Japanese holly (Ilex crenata 'Convexa') by 47% and 60%, respectively. Similarly, Berchielli-Robertson et al (1990) reported a 43% reduction in Fashion azalea (Rhododendron · 'Fashion') from one eclipta (Eclipta prostrata L.) plant. Other studies have also reported similar growth reductions from a wide variety of weed species on many different ornamental crops (Norcini and Stamps, 1994;Walker and Williams, 1989).…”

Section: Introduction To Current Weed Control Methodsmentioning

confidence: 96%

“…Nursery crop producers growing containerized ornamentals face several unique challenges pertaining to weed management. First, as container-grown plants are produced in a restricted rooting environment, it only takes one weed to negatively impact crop growth and marketability (Berchielli-Robertson et al, 1990;Fretz, 1972;Walker and Williams, 1989). Fretz (1972) demonstrated that one large redroot pigweed (Amaranthus retroflexus L.) or large crabgrass (Digitaria sanguinalis L.) reduced the growth of 'Convexa' Japanese holly (Ilex crenata 'Convexa') by 47% and 60%, respectively.…”

Section: Introduction To Current Weed Control Methodsmentioning

confidence: 99%

Impact of Container Nursery Production Practices on Weed Growth and Herbicide Performance

Stewart¹,

Marble²,

Pearson³

2017

horts

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“…Survival and growth of transplants were assessed at regular intervals over the next 7 years. For each plant, the height ( H ), together with the maximum and its orthogonal widths (W1, W2) were measured, and growth indices were calculated as ( H + W1 + W2)/3 (Berchielli-Robertson et al . 1990).…”

Section: P R O S T a N T H E R A E U R Y B I O I D E Smentioning

confidence: 99%

Translocation trials confirm specific factors affecting the establishment of three endangered plant species

Jusaitis¹

2005

Eco Management Restoration

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This paper was prepared to highlight some of the factors limiting the success of plant translocations, based on Manfred's work with experimental translocations of endangered plants in South Australia. Summary Experimental translocations of three endangered plants undertaken in SouthAustralia confirmed the impact of specific factors thought to affect the survival and establishment of seedlings of each species. A trial involving Prostanthera eurybioides planted into several different microsites, found microsite to be a critical determinant of survival and growth. Herbivore grazing and weed competition adversely affected survival and growth of Acacia cretacea and Acacia whibleyana translocants, respectively. While these findings may not necessarily extrapolate to all species, common sense suggests that these three factors should be important considerations when planning other plant translocations. For example, attention needs to be given to the exact placement of individuals in relation to suitable edaphic, biotic and climatic factors around the receptor site. Where weeds threaten the population, they need to be controlled either before or at the time of planting. Furthermore, protection of new plantings from herbivores is likely to be crucial, particularly during the first few months after planting.

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Competitive Effects of Weeds on the Growth of Container-grown Plants

Cited by 43 publications

References 0 publications

Biodegradable mulching spray for weed control in the cultivation of containerized ornamental shrubs

Biodegradable mulching spray for weed control in the cultivation of containerized ornamental shrubs

Impact of Container Nursery Production Practices on Weed Growth and Herbicide Performance

Translocation trials confirm specific factors affecting the establishment of three endangered plant species

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