Effect of Biostimulants on Several Physiological Characteristics and Chlorophyll Content in Broccoli under Drought Stress and Re-watering

Kałużewicz, Alina; Krzesiński, W.; Spiżewski, T.; Zaworska, A.

doi:10.15835/nbha45110529

Cited by 52 publications

(30 citation statements)

References 29 publications

(37 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Drought stress strongly influences plant gas exchange changing photosynthetic and transpiration rates, which are directly linked to yield. Application of Ascophyllum nodosum on broccoli [185] and spinach [186] enhanced gas exchange through the reduction of stomatal closure, resulting in increased plant resistance to water stress. Leaf yellowing is another common symptom of drought stress due to chlorophyll degradation during leaf senescence and is used as reliable indicator of metabolic and energetic imbalance in plants under stress.…”

Section: Biostimulants and Drought Stressmentioning

confidence: 99%

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

2019

View full text Add to dashboard Cite

Abiotic stresses strongly affect plant growth, development, and quality of production; final crop yield can be really compromised if stress occurs in plants’ most sensitive phenological phases. Additionally, the increase of crop stress tolerance through genetic improvements requires long breeding programmes and different cultivation environments for crop performance validation. Biostimulants have been proposed as agronomic tools to counteract abiotic stress. Indeed, these products containing bioactive molecules have a beneficial effect on plants and improve their capability to face adverse environmental conditions, acting on primary or secondary metabolism. Many companies are investing in new biostimulant products development and in the identification of the most effective bioactive molecules contained in different kinds of extracts, able to elicit specific plant responses against abiotic stresses. Most of these compounds are unknown and their characterization in term of composition is almost impossible; therefore, they could be classified on the basis of their role in plants. Biostimulants have been generally applied to high-value crops like fruits and vegetables; thus, in this review, we examine and summarise literature on their use on vegetable crops, focusing on their application to counteract the most common environmental stresses.

show abstract

Section: Biostimulants and Drought Stressmentioning

confidence: 99%

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

2019

View full text Add to dashboard Cite

show abstract

“…One of the many factors with a negative effect on the quantity and quality of rapeseed crops include unfavourable soil conditions and drought-related stress. Strong stress leads to damaged cell structures and disturbances in metabolism and as a result, can lead to photosynthesis and plant and metabolism disruption [1]. Rouphael and Colla [2] reports that plant biostimulators are products obtained from various organic or inorganic substances or microorganisms that improve plant growth, productivity and reduce the negative effects of environmental stress.…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition of Winter Rape Seeds Depending on the Biostimulators Used

et al. 2019

View full text Add to dashboard Cite

Plant growth regulators may reduce the negative effect of environmental stress factors and can contribute to increasing the quality and quantity of the yield. The aim of the research was to determine the effect of biostimulators on the quality of seeds of three winter rape morphotypes. Three varieties of winter rape were used: Poznaniak (population variety), PX104 (hybrid variety restored with a semi-dwarf growth type) and Konkret (hybrid variety restored with a traditional growth type). The varieties were exposed to three treatments: the biostimulator Tytanit®, the biostimulator Asahi®SL and the biostimulator Silvit®, and the control with no biostimulators. Seeds were analysed for content of crude fat, total fat and crude fibres. The biostimulators reduced total protein content (on average from 0.8 to 1.75 g·kg−1 of d.m.) and increased the concentration of crude fat (on average from 0.71 to 1.93 g·kg−1 of d.m.) and crude fibre (on average from 0.15 to 0.84 g·kg−1 of d.m.) compared to the control. PX104 had the highest content of crude fat and total fat protein, and the lowest in crude fibre. The smallest protein content was found in seeds of the long-stem hybrid Konkret, while crude fat was lowest in the population form (Poznaniak), and crude fibre was lowest in long-stem hybrid (Konkret).

show abstract

“…Our results suggest biostimulant application may increase biomass accumulation and reduce Chl fluorescence in P. peruviana plants by providing and balancing growth regulators in the plant, which favour cell division and improve stem biomass production concerning shoot. Phytohormones, such as cytokine, jasmonate, salicylic acid and ethylene, as well as betaine, polyamines and mineral nutrients contained in the biostimulant may act in plant growth regulation and therefore favouring biomass accumulation (Jannin et al, 2013;Ye & Murata, 2016;Kałużewicz et al, 2017). At the concentrations used in this study, biostimulant preserved the photosynthetic apparatus thereby keeping light transfer to reaction centres which thus resulted in higher energy conversion and photosystem activity.…”

Section: /7mentioning

confidence: 83%

Photochemical efficiency, biomass and chlorophyll of phyális under salinity and biostimulant

Nóbrega

Fátima

Ferreira

et al. 2021

Agraria

View full text Add to dashboard Cite

Physalis peruviana L. has great exploitation potential especially for small producers in the Brazilian Northeast. However, production in semiarid regions may be limited by high salt content in soils and water sources used for irrigation. Thus, this study evaluated the application of Ascophyllum nodosum seaweed extract as saline stress attenuator in P. peruviana L. The randomized block design was used, in an incomplete 5 × 5 factorial scheme, with five of electrical conductivities of the irrigation water (0.50, 1.23, 3.00, 4.77 and 5.50 dS m -1 ) and five increasing concentrations of kelp extract (0.00, 1.45, 5.00, 8.55 and 10.00 mL L -1 ), with nine combinations generated by the Central Box matrix, with four replicates of four plants to evaluate the effect on phytomass accumulation, chlorophyll fluorescence and pigment content. Results showed, salinity significantly reduced biomass production and chlorophyll fluorescence and pigment indices. However, when plants were treated with 9.9 mL L -1 seaweed extract they increased biomass production and seedling quality. On the other hand, up to 4.1 mL L -1 , the biostimulant increased dark-adapted fluorescence indices which indicate it reduces damages to the photosynthetic apparatus caused by salt-stress and thus improving photosynthetic activity and photoassimilates production. Thus the application of A. nodosum seaweed extract attenuates the deleterious effect of salt stress in photosynthesis and thus in biomass production of P. peruviana plants.

show abstract

Effect of Biostimulants on Several Physiological Characteristics and Chlorophyll Content in Broccoli under Drought Stress and Re-watering

Cited by 52 publications

References 29 publications

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

Chemical Composition of Winter Rape Seeds Depending on the Biostimulators Used

Photochemical efficiency, biomass and chlorophyll of phyális under salinity and biostimulant

Contact Info

Product

Resources

About