Environmental factors affect seed germination and seedling emergence of invasive Centaurea balsamita

Nosratti, Iraj; Soltanabadi, Samira; Honarmand, Saeid Jalali; Chauhan, Bhagirath Singh

doi:10.1071/cp17183

Cited by 11 publications

(11 citation statements)

References 35 publications

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“…Germination of both seed types of T. arvensis in the presence or absence of light was the same and was not affected by light. Similar to our results, the insensibility of weed seeds to light for germination (nonphotoblastic) has been reported for many other species, such as Centaurea balsamita Lam (Nosratti et al 2017c), Myagrum perfoliatum (Honarmand et al 2016), Sophora alopecuroides (Nosratti et al 2017a), Solanum ptycanthum Dun (Zhou et al 2005) and Ipomoea purpurea Roth (Singh et al 2012).…”

Section: Discussionsupporting

confidence: 91%

“…Similar to our results, the insensibility of weed seeds to light for germination (nonphotoblastic) has been reported for many other species, such as Centaurea balsamita Lam (Nosratti et al . ), Myagrum perfoliatum (Honarmand et al . ), Sophora alopecuroides (Nosratti et al .…”

Section: Discussionmentioning

confidence: 99%

“…pH The effect of pH on seed germination of T. arvensis was studied using buffer solutions of pH 4-10 prepared as described by Nosratti et al (2017c). Petri dishes were incubated as described in the general seed germination test protocol.…”

Section: Osmotic Stress Induced By Peg-6000 and Naclmentioning

confidence: 99%

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Variations in the germination characteristics in response to environmental factors between the hairy and spiny seeds of hedge parsley (Torilis arvensis Huds.)

Payamani

Nosratti

Amerian

2018

Weed Biology and Management

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Torilis arvensis Huds. produces two types of mericarps, spiny and hairy (referred to as seeds hereafter), but little information is available on their germination behavior. Therefore, the purpose of this study was to determine the different germination characteristics of hairy and spiny seeds in T. arvensis in response to environmental factors. Both seed types were dormant at harvesting, but the spiny type had a deeper dormancy level and required a more prolonged after‐ripping period. In general, T. arvensis seed germination and seedling emergence responses to examined factors were similar between the two seed types. The highest germination percentage was observed in pH 7. Germination was the highest at a temperature of 20°C. Light did not affect seed germination. T. arvensis was sensitive to osmotic stress induced by NaCl or PEG6000. No seedlings emerged when the seeds were buried at soil depth of 6 cm and deeper soil depths. The results indicate that T. arvensis has the potential to spread into more areas devoted to Apiaceae crops in Iran. Tillage would be beneficial to its effective control in these crops.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

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Variations in the germination characteristics in response to environmental factors between the hairy and spiny seeds of hedge parsley (Torilis arvensis Huds.)

Payamani

Nosratti

Amerian

2018

Weed Biology and Management

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“…Despite the yield losses under saline conditions observed in our study, it has to be considered that the medium level tested (S1: 4.0 dS/m) which provoked a small yield loss is usually prohibitive for plant growth of many conventional leafy crops and results in severe losses of yield [56,57]. So far, there are reports regarding the response of other Centaurea genus members to salinity stress [58][59][60][61], including some halophytic species of the genus [62,63]. However, to the best of our knowledge this is the first report regarding the impact of salinity on plant growth of C. raphanina subsp.…”

Section: Plant Growthmentioning

confidence: 68%

Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions

et al. 2020

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The aim of this report was to study the effect of salinity (control: 2dS/m, S1: 4 dS/m and S2: 6 dS/m) and harvest time (first harvest on 9 May 2018 and second harvest on 19 April 2018) on the growth and the chemical composition of Centaurea raphanina subsp. mixta plants. The plants of the first harvest were used for the plant growth measurements (fresh weight and moisture content of leaves, rosette diameter, number and thickness of leaves), whereas those of the second harvest were not used for these measurements due to the flowering initiation, which made the leaves unmarketable due to their hard texture. The results of our study showed that C. raphanina subsp. mixta plants can be cultivated under mild salinity (S1 treatment) conditions without severe effects on plant growth and yield, since a more severe loss (27.5%) was observed for the S2 treatment. In addition, harvest time proved to be a cost-effective cultivation practice that allows to regulate the quality of the final product, either in edible form (first harvest) or for nutraceutical and pharmaceutical purposes as well as antimicrobial agents in food products. Therefore, the combination of these two agronomic factors showed interesting results in terms of the quality of the final product. In particular, high salinity (S2 treatment) improved the nutritional value by increasing the fat, proteins and carbohydrates contents in the first harvest, as well as the tocopherols and sugars contents (S1 and S2 treatments, respectively) in the second harvest. In addition, salinity and harvest time affected the oxalic acid content which was the lowest for the S2 treatment at the second harvest. Similarly, the richest fatty acid (α-linolenic acid) increased with increasing salinity at the first harvest. Salinity and harvest time also affected the antimicrobial properties, especially against Staphylococcus aureus, Bacillus cereus and Trichoderma viride, where the extracts from the S1 and S2 treatments showed high effectiveness. In contrast, the highest amounts of flavanones (pinocembrin derivatives) were detected in the control treatment (second harvest), which was also reflected to the highest antioxidant activity (TBARS) for the same treatment. In conclusion, C. raphanina subsp. mixta plants seem to be tolerant to medium salinity stress (S1 treatment) since plant growth was not severely impaired, while salinity and harvesting time affected the nutritional value (fat, proteins, and carbohydrates) and the chemical composition (tocopherols, sugars, oxalic acid, fatty acids), as well as the bioactive properties (cytotoxicity and antimicrobial properties) of the final product.

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“…plants had a long vegetation period. Nosratti et al (2017b) reported that while the best germination percentage was observed at 25 °C in C. balsamita taxon, the light and dark conditions had similar effects on seed germination of C. balsamita. Noting that the responses of different Centaurea species to the light period were not comparable, Köse and Yücel (2015) monitored varying photoperiod conditions and germination percentages at 25 °C in four different Centaurea taxa.…”

Section: Determination Of Seed Germination Performances At Different ...mentioning

confidence: 93%

Seed propagation, adaptation to cultivation conditions, determination of ornamental plant properties, and ex situ conservation of the endemic species Centaurea hermannii F. Hermann

Yücel

2021

BioRes

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This study focused on seed propagation and ex situ conservation of the endemic species Centaurea hermannii F. Hermann. Plant properties such as vegetation cycle, adaptation to the cultivation environment, morphological characteristics of the plants and seeds, and esthetic properties as an ornamental variety were investigated. The percentage of viability of the seeds, as well as the effects of different seed germination methods when applied to the germination speed, were also explored. C. hermannii specimens planted in soil adapted quickly under field conditions and flowered over a period of two months, with a bright-orange color and glossy blossoms. In addition, the plants displayed all the type-specific botanical and esthetic properties, as well as provided value as an ornamental plant. An ex situ conservation area was created with the plants collected. To determine the best germination conditions for C. hermannii seeds, various methods were explored. Among these, a combination of 200 ppm of GA3 treatment during a three-month storage period at 4 °C, followed by cold-wet stratification at 4 °C for three months, produced the best results in terms of mean percentage germination (70.5 %) and mean germination speed (3 days).

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Environmental factors affect seed germination and seedling emergence of invasive Centaurea balsamita

Cited by 11 publications

References 35 publications

Variations in the germination characteristics in response to environmental factors between the hairy and spiny seeds of hedge parsley (Torilis arvensis Huds.)

Variations in the germination characteristics in response to environmental factors between the hairy and spiny seeds of hedge parsley (Torilis arvensis Huds.)

Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions

Seed propagation, adaptation to cultivation conditions, determination of ornamental plant properties, and ex situ conservation of the endemic species Centaurea hermannii F. Hermann

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