The effect of biostimulants and light wavelengths on the physiology of Cleome gynandra seeds

Nemahunguni, Nkhanedzeni K.; Gupta, Shubhpriya; Kulkarni, Manoj G.; Finnie, J.F.; Staden, J. Van

doi:10.1007/s10725-019-00546-7

Cited by 12 publications

(14 citation statements)

References 32 publications

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“…Stimulate ® use promoted desirable growth increase in vegetative organs of many species (MASONDO et al, 2019;MONTEIRO et al, 2019;NEMAHUNGUNI et al, 2020). However, there was no effect of this biostimulant on production and dry mass of sweet potato tubers (RÓS et al, 2015) nor in the growth of rocket roots (HAJAR et al, 2015), as well as did not interfere in the dry mass of shoot and roots of coffee seedlings (MELO; MACIEL, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…In order to obtain high quality seedlings, in addition to the age aspect, biostimulants have been used in vegetable seeds and seedlings by nurseries (PALANGANA et al, 2012;IZIDÓRIO et al, 2015;MASONDO et al, 2019;NEMAHUNGUNI et al, 2020), however, the results obtained are very diverse. It is known that the effects of biostimulants on seedlings can vary according to the genotype (VENDRUSCOLO et al, 2016a).…”

Section: Introductionmentioning

confidence: 99%

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Growth and productivity of tomato under use of biostimulant and ages of seedling transplantation

et al. 2021

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The age of the seedlings in the transplant, as well as the use of biostimulants in their production, are factors that can influence the good quality of the seedlings, which is fundamental for the good development of the plant, and can affect the yield of the tomato crop. The objective of this study was to evaluate plant development and fruit yield according to the age of tomato seedlings, during transplantation, whether or not treated with the Stimulate® biostimulant. The hybrid H9553 was used, and the experiment was conducted in a randomized block design, with four replications, and ten plants were evaluated, per plot. The factorial scheme 2 x 6 was adopted, where 2 corresponds to the use or not of Stimulate®, and 6 corresponds to the age of the seedlings, in the transplant. Before transplantation, the height of the seedling, length of the root, stem diameter, number of leaves, fresh and dry mass of the aerial part and the root were evaluated at 20, 30, 40, 50, 60 and 70 days after sowing. At 78 days after transplantation, the length of the main stem, stem diameter, number of fruits per plant, total fruit mass per plant and average fruit mass were evaluated. Seedlings with seventy days show superior results for the morphological characteristics, however, this does not interfere in the yield of the culture. The use of Stimulate®, alone or in interaction with the age of the seedlings, does not influence plant growth or fruit yield.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth and productivity of tomato under use of biostimulant and ages of seedling transplantation

et al. 2021

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“…Protein, carbohydrate, and chlorophyll contents were also increased in response to these biostimulants, clearly emphasizing their use in agriculture. In the continuation of this research, [ 45 ] reported that among all the tested biostimulants, smoke water showed maximum enhancement of seed germination percentage in the dark. Furthermore, they suggested plant-derived smoke as the best organic biostimulant for the potential application to improve seed germination and growth of Cleome gynandra.…”

Section: Components In Plant-derived Smokementioning

confidence: 93%

Plant-Derived Smoke Affects Biochemical Mechanism on Plant Growth and Seed Germination

Khatoon

Rehman

Aslam

et al. 2020

IJMS

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The role of plant-derived smoke, which is changed in mineral-nutrient status, in enhancing germination and post-germination was effectively established. The majority of plant species positively respond to plant-derived smoke in the enhancement of seed germination and plant growth. The stimulatory effect of plant-derived smoke on normally growing and stressed plants may help to reduce economic and human resources, which validates its candidature as a biostimulant. Plant-derived smoke potentially facilitates the early harvest and increases crop productivity. Karrikins and cyanohydrin are the active compound in plant-derived smoke. In this review, data from the latest research explaining the effect of plant-derived smoke on morphological, physiological, biochemical, and molecular responses of plants are presented. The pathway for reception and interaction of compounds of plant-derived smoke at the cellular and molecular level of plant is described and discussed.

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“…The impact of blue light (B) on germination is considered to be negative [7]. However, the germination of a green vegetable of the Brassicales order, Cleome gynandra, is stimulated by blue light [8]. B is perceived by seed cryptochromes and phototropins, and the molecular mechanism of germination under B is under investigation ( [9], and the references therein).…”

Section: Introductionmentioning

confidence: 99%

“…However, the existence of smoke-responsive plant species that did not react to KAR1 led to the discovery of other biologically active smoke chemicals: cyanohydrins glyceronitrile (2,3-dihydroxypropanenitrile) and mandelonitrile (MAN), hydroquinones, nitrates, and syringaldehyde [15,16]. These were found to be responsible for germination, and many papers and reviews described the use of some of these compounds as biostimulants [8,14,15,[17][18][19][20][21][22]. Moreover, a smoke-derived inhibitor of germination, 3,4,5-trimethylfuran-2(5H)-one or trimethylbutenolide (TMB), was identified [17,23,24].…”

Section: Introductionmentioning

confidence: 99%

An Interplay of Light and Smoke Compounds in Photoblastic Seeds

Bączek-Kwinta

2022

Plants

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Light increases the germinability of positively photoblastic seeds and inhibits the germination of negative ones. In an area where plant-generated smoke from fire is a periodically occurring environmental factor, smoke chemicals can affect the germination of seeds, including those that are photoblastically sensitive. Moreover, as smoke and its compounds, mostly karrikin 1, KAR1, have been used for priming the seeds of many species, including photoblastic ones, a systematic review of papers dealing with the phenomenon was conducted. The review indicates that the unification of experimental treatments (light spectrum, intensity and photoperiod, and KAR1 concentration within the species) could improve the quality of global research on the impact of smoke chemicals on photoblastic seeds, also at the molecular level. The review also reveals that the physiologically active concentration of KAR1 varies in different species. Moreover, the physiological window of KAR’s impact on germination can be narrow due to different depths of primary seed dormancy. Another concern is the mode of action of different smoke sources and formulations (aerosol smoke, smoke-saturated water), or pure smoke chemicals. The reason for this concern is the additive or synergetic effect of KARs, cyanohydrins, nitrates and other compounds, and the presence of a germination inhibitor, trimethylbutenolide (TMB) in smoke and its formulations. Obviously, environmental factors that are characteristic of the local environment need to be considered. From a practical perspective, seeds germinating faster in response to smoke chemicals can outcompete other seeds. Hence, a thorough understanding of this phenomenon can be useful in the restoration of plant habitats and the protection of rare species, as well as yielding an improvement in plants that are sown directly to the field. On the other hand, the application of smoke compounds can induce “suicidal germination” in the photoblastic seeds that are buried in the soil and deplete the soil seed bank of the local population of unwanted species.

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The effect of biostimulants and light wavelengths on the physiology of Cleome gynandra seeds

Cited by 12 publications

References 32 publications

Growth and productivity of tomato under use of biostimulant and ages of seedling transplantation

Growth and productivity of tomato under use of biostimulant and ages of seedling transplantation

Plant-Derived Smoke Affects Biochemical Mechanism on Plant Growth and Seed Germination

An Interplay of Light and Smoke Compounds in Photoblastic Seeds

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