Environmental Factors Affecting Seed Germination and Seedling Emergence of Foxtail Sophora (<i>Sophora alopecuroides</i>)

Nosratti, Iraj; Amiri, Sahar; Bagheri, A.; Chauhan, Bhagirath Singh

doi:10.1017/wsc.2017.35

Cited by 24 publications

(16 citation statements)

References 32 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%

“…), Sophora alopecuroides (Nosratti et al . ), Solanum ptycanthum Dun (Zhou et al . ) and Ipomoea purpurea Roth (Singh et al .…”

Section: Discussionmentioning

confidence: 99%

“…Compared with other weed species growing in Iran, T. arvensis was sensitive to osmotic stress (Ebrahimi & Eslami 2012;Nosratti et al 2017a). Water stress is a common environmental issue across Iran, especially in rain-fed farmlands (Nosratti et al 2017b).…”

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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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%

“…), Sophora alopecuroides (Nosratti et al . ), Solanum ptycanthum Dun (Zhou et al . ) and Ipomoea purpurea Roth (Singh et al .…”

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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“…These results agree with previous reports on species with small seeds, such as trumpet creeper ( Campsis radicans ) (Chachalis & Reddy ) and foxtail sophora ( Sophora alopecuroides ) (Nosratti et al . ). The seeds of C. viscosa are small; hence, they contain only a limited amount of food reserves to support seedling emergence from depth.…”

Section: Resultsmentioning

confidence: 97%

Asian spiderflower (Cleome viscosa) germination ecology in southern Iran

Elahifard¹,

Derakhshan²

2018

Weed Biology and Management

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Cleome viscosa is one of the most important weeds of warm-season crops in southern Iran. Laboratory experiments were conducted to assess the impact of environmental factors on seed germination of C. viscosa. Freshly harvested seeds exhibited dormancy that was relieved (>90%) after immersion for 20 min in concentrated sulfuric acid. Regardless of the temperature regime, the final percentage of germination in light/dark (69.3%) was significantly higher than in complete darkness (58.3%). The optimum temperature for germination was 35/25 C in both light and dark. No germination was observed at constant temperatures of either 15 or 45 C. The thermal thresholds for seed germination, the base (T b ) and the mean ceiling germination temperatures (T c(50) ) were estimated to be 18.8 and 39.9 C, respectively. A base water potential (Ψ b(50) ) of −0.96 MPa was identified for C. viscosa seeds. The response threshold of C. viscosa to reduce 50% of maximum germination for salinity was estimated to be 255 mM. Seeds that were placed on the soil surface had the highest percentage of seedling emergence (77.3%), and no seedlings emerged from seeds placed at a depth of 6 cm. The findings of this study could help to improve the integrated weed management strategies for this species.

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“…These results corroborated with the ones found by Florentine et al (2018), in work performed with E. plantagineum seeds in Australia, in which the authors did not find significant effect of pH, in the range from 4.0 to 10.0, of substrate in germination, obtaining germination superior to 80%. These characteristics are common in many weed plant species, such as: Emex spinosa and E. australis (Javaid & Tanveer, 2014), Galenia pubescens (Mahmood et al 2016), Sophora alopecuroides (Nosratti et al 2017), Parthenium hysterophorus (Bajwa;Chauhan & Adkins, 2017) and Alyssum linifolium (Mobli;Ghanbari & Rastgoo, 2018).…”

Section: Resultsmentioning

confidence: 99%

Effects of Aluminum and pH on Germination of Echium plantagineum L.

Roso

Nunes

Müller

et al. 2020

JAS

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The objetive of this study was to identify the effects of aluminum concentrations and pH levels of solution on germination of Echium plantagineum L. seeds. Three different experiments were carried out in completely randomized design with four repetitions. In the first experiment, we used aluminum sulfate solutions in concentrations of 0.0; 0.3; 0.6; 1.0; 2.0; 3.0; 4.0; 5.0; 6.0 and 7.0 cmolc L -1 and in the second experiment, solutions with different pH, 3.0; 4.0; 5.0; 6.0; 7.0; 8.0; 9.0 and 10.0. In the third experiment, we carried out a factorial (4x4) with aluminum sulfate solutions (0.0; 2.0; 4.0 and 6.0 cmolc L -1 ) and pH (4.0; 5.0; 6.0 and 7.0). It was evaluated the germination of Echium plantagineum L. at four and 14 days after seeding (DAS), germination speed index, primary root length, aerial part and dry mass of seedlings. The presence of aluminum reduced the germination by 27 and 40% at four and 14 DAS, respectively, in concentrations superior to 3.0 cmolc L -1 . The three growth parameters presented linear reduction with the increase of aluminum concentrations. In the second experiment, the solutions with pH of 3.0 and 10.0 provided increases in germination, length of root and aerial part, and little influence in the dry mass of seedlings. In the third experiment, there was significant interaction between the aluminum concentrations and pH levels of substrate. The presence of aluminum in the substrate presented toxic effect on germination of seeds, length of seedlings and dry mass. The pH of the solution has little effect in germination of seeds and in the growth of seedlings of E. plantagineum.

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Environmental Factors Affecting Seed Germination and Seedling Emergence of Foxtail Sophora (Sophora alopecuroides)

Cited by 24 publications

References 32 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.)

Asian spiderflower (Cleome viscosa) germination ecology in southern Iran

Effects of Aluminum and pH on Germination of Echium plantagineum L.

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