Aspects of Biology and Ecophysiology, Survival Mechanisms, and Weed Classifications

Aguiar, Adalin Cézar Moraes de; Mendes, Kássio Ferreira; Júnior, Lucas Heringer Barcellos; Silva, Elisa Maria Gomes da; Silva, Laryssa Barbosa Xavier da; Silva, Antônio Alberto da

doi:10.1007/978-3-031-01938-8_1

Cited by 1 publication

(1 citation statement)

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“…Among the various environmental factors influencing the sprouting dynamics and early establishment of weeds, temperature is one of the most prominent (Cezar Moraes de Aguiar et al 2022; Peters et al 2014). Consequently, several studies have concentrated on creating prediction models based on thermal time (TT), specifically growing degree days (GDD).…”

Section: Introductionmentioning

confidence: 99%

Modeling the effect of temperature on rhizome sprouting in the invasive weed silverleaf nightshade (Solanum elaeagnifolium)

Kapiluto,

Smirnov,

Achdary

et al. 2024

Weed Sci

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Silverleaf nightshade (Solanum elaeagnifolium Cav.), a noxious, highly invasive perennial weed, poses a significant threat to irrigated summer crops, vegetables, and orchards. This weed has the ability to reproduce both sexually, through seed production, and asexually, via an extensive underground rhizome network, the latter being major role in the weed’s invasion, establishment, and persistence. Our aims were thus to assess the impact of temperature on rhizome sprouting for fragments of different lengths and to model the sprouting dynamics. The influence of temperature on the sprouting of rhizome fragments (2.5, 5, 7.5, or 10 cm long) was investigated in growth chambers at eight temperatures ranging from 10–45 C. The highest sprouting proportions for 10-cm rhizome fragments were recorded at 30 and 35 C in complete darkness. The highest sprouting time for all fragment lengths was observed at 15 C in complete darkness. Modeling sprouting rates as a function of temperature gave the cardinal temperatures for the four different rhizome fragment lengths, with values of: T b (base temperature) 12.80, 9.34, 9.14 and 9.50 C, T o (optimal temperature) 38.90, 36.60, 35.16 and 34.86 C, Tc (ceiling temperature) 39.80, 40.08, 40.50 and 40.80 C for the rhizome length of 2.5, 5, 7.5 and 10 cm respectively. Based on these findings, the potential for S. elaeagnifolium to spread to new areas and possible new management strategies are discussed; these offer a novel approach for informed decision making regarding the control of this weed.

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Section: Introductionmentioning

confidence: 99%