Environmental factors’ effect on seed germination and seedling growth of chicory (Cichorium intybus L.) as an important medicinal plant

Vahabinia, Fatemeh; Pirdashti, Hemmatollah; Bakhshandeh, Esmaeil

doi:10.1007/s11738-019-2820-2

Cited by 33 publications

(11 citation statements)

References 37 publications

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“…Previous studies have demonstrated that sediment/sand burial can affect seed emergence and survival (Zhang and Maun 1990, Benvenuti et al 2001, Huang et al 2004, Jarvis and Moore 2015); seedling morphological indices such as seedling height, branch number, shoot/root length, seedling biomass and biomass allocation (Li et al 2006, Mou and Sun 2011, Mao et al 2019, Vahabinia et al 2019); and seedling physiological responses such as photosynthetic rate, chlorophyll content and soluble sugars (Perumal and Maun 2006, Mao et al 2019). A suitable sediment burial depth can create favorable environmental conditions relating to temperature and water for seed germination, but excessive burial depth will cause oxygen deficiency or an increase in soil mechanical resistance, thus inhibiting seed germination and seedling emergence (Zhang and Maun 1990, Zhang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The sediment burial depth and salinity control the early developments of Suaeda salsa in the Yellow River Delta

Guan

Zhang

et al. 2021

Nordic Journal of Botany

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Sediment deposition is a common phenomenon in the estuary area. Pot control experiments were conducted to evaluate the interaction effects of sediment burial depth and salt stress on the seed germination and early seedling growth of Suaeda salsa (L.) Pall., an pioneer species of tidal wetland near the Yellow River Delta. The results showed that the percentage of seedling emergence, seedling emergence rate, seedling height, branch number, shoot biomass and root biomass were all significantly affected by salt stress and sediment burial depth. While the interaction of salt and burial depth significantly influenced the branch number, leaf biomass, shoot biomass and total plant biomass. Only 5 cm burial depth without salt stress should 6.25 ± 3.61% seedlings emergence. With the increasing of sediment burial depth and salt stress, percentage of seedling emergence, seedling emergence rate and plant height decreased significantly. However, under the salt treatment of 0 and 1%, the branch number increased dramatically with the increasing of sediment burial depth from 0 to 3 cm. The ratio of leaf to total biomass increased with increasing of burial depth, on the contrary, the ratio of root to total biomass decreased. 0-1 cm sediment burial depth was proved the suitable depths for seed germination of S. salsa in the coastal wetland of the Yellow River Delta. Our findings contribute to a better understanding of how to improve the seedling establishment of S. salsa under the dynamic changes of sediment deposition and salinity in the coastal wetland of the Yellow River Delta.

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Section: Introductionmentioning

confidence: 99%

The sediment burial depth and salinity control the early developments of Suaeda salsa in the Yellow River Delta

Guan

Zhang

et al. 2021

Nordic Journal of Botany

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“…drought, heat and salinity) that may occur in the future. In field conditions, germination timing may decrease due to many factors that are associated with seed, soil and environment properties (Derakhshan et al 2018; Vahabinia et al 2019; Liu et al 2020). Silva & Silveira (2014) reported that canola germination declined with increasing salinity and then completely stopped at 250 m m (AAP = 0), which is lower than that found in the present study.…”

Section: Discussionmentioning

confidence: 99%

Halothermal and hydrothermal time models describe germination responses of canola seeds to ageing

Bakhshandeh

Jamali

2021

Plant Biol J

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Hydrothermal time (HTT) and halothermal time (HaloTT) models were used to quantitatively characterize the combined effects of temperature (T), water potential (ψ) and NaCl concentration on seed germination of canola after different accelerated ageing periods (AAP) at 42 °C and 100% humidity. Seed germination time courses were observed and electrical conductivities of seed leachates were measured in all experiments. The cardinal temperatures estimated by both models were 4.6, 28 and 35 °C for the base (Tb), optimum (To) and ceiling (Tc) temperatures in water (0 MPa), respectively, when the seeds were not aged. The Tb increased with AAP, while the Tc decreased and the To remained constant at all AAP. Below To, the median base water potentials (ψb(50)) were −1.07, −0.73, −0.48 and −0.39 MPa for the AAP levels of 0, 24, 36 and 48 h, respectively. These values were more negative when germination occurred in salt solutions (the base NaCl concentrations converted to ψ were −1.25, −0.81, −0.51 and −0.41 MPa, respectively), due to uptake of salt ions. Thresholds became more positive above To and reached zero at Tc in all AAP. Seed osmotic adjustment capacity declined linearly with increasing AAP while the conductivity of seed leachates increased in association with the loss of seed vigour. Significant correlations between conductivity results and the parameters of HTT and HaloTT models suggest that they could be considered as effective descriptors of canola seed vigour.

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“…No entanto, ainda é pouco contemplada pela pesquisa, principalmente, no que diz respeito a seus processos germinativos (PINTO JUNIOR et al, 2009). Barcaccia et al (2016) e Vahabinia et al (2019) confirmam que as informações disponíveis sobre o efeito de fatores ambientais, tais como a temperatura, sobre a germinação e formação de plântulas, ainda são escassas.…”

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“…As diferenças de resultados podem estar relacionadas ao fato de que o teor de umidade encontrado por estes autores foi de 6,4%, superior aos das sementes testadas por este experimento (1,9%). Vahabinia et al (2019), avaliando o efeito de fatores ambientais na germinação de sementes e no crescimento de plântulas, citaram taxas de germinação acima de 90%, faixa de temperatura entre 5 e 40 °C, utilizando como substrato papel de filtro. Muscolo et al (2010) 36 c 1,9 bc 5,9 a Médias seguidas de mesma letra, para a mesma posição do substrato, na coluna, não diferem entre si, pelo teste de Tukey (5% de probabilidade).…”

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Germinação De Sementes E Formação De Plântulas De Almeirão Em Diferentes Temperaturas E Substratos

Paulo

Oliveira

Matias

et al. 2019

Rev. Bras. de Agroecologia

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O objetivo deste estudo foi avaliar a germinação e formação de plântulas de almeirão em seis temperaturas (20, 25, 30, 35, 20-30 e 25-35 °C) e dois substratos (sobre e entre papel). Foi utilizado o delineamento experimental inteiramente casualizado, em esquema fatorial, em B.O.D. Avaliou-se germinação, índice de velocidade, tempo médio de germinação e formação de plântulas normais. A germinação entre papel na temperatura de 25 °C apresentou os melhores resultados.

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Environmental factors’ effect on seed germination and seedling growth of chicory (Cichorium intybus L.) as an important medicinal plant

Cited by 33 publications

References 37 publications

The sediment burial depth and salinity control the early developments of Suaeda salsa in the Yellow River Delta

The sediment burial depth and salinity control the early developments of Suaeda salsa in the Yellow River Delta

Halothermal and hydrothermal time models describe germination responses of canola seeds to ageing

Germinação De Sementes E Formação De Plântulas De Almeirão Em Diferentes Temperaturas E Substratos

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