Growth Of Radish Research Articles

Effect of LF-microwave hybrid plasma treatment on radish seed germination and sprout growth

The atmospheric pressure non-thermal plasma generated by low-frequency (LF)-microwave hybrid discharge has been employed to investigate the effects of plasma treatment on the germination and growth of radish (Raphanus sativus L.) sprout seeds. The plasma generated with admixture discharge gas of Ar-O2 was adopted for the irradiation of seeds. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) analyses were performed to elucidate the physical and chemical state changes of seed surfaces after plasma treatment. The reactive species produced in the plasma were investigated using optical emission spectroscopy (OES) and chemical indicator (CI). The results demonstrate that higher reactive oxygen species were generated from the LF-microwave hybrid plasma compared to conventional LF plasma jet. Moreover, the higher germination percentage and shorter germination time were obtained with the LF-microwave hybrid plasma compared to LF plasma jet and control group. It is considered that reactive species produced in the LF-microwave hybrid plasma are related to the germination time of the radish sprout seed.

Earthworms Drive the Effect of La2O3 Nanoparticles on Radish Taproot Metabolite Profiles and Rhizosphere Microbial Communities.

To promote the sustainable and safe application of nanotechnology employing engineered nanoparticles (NPs) in agroecosystems, it is crucial to pay more attention to the NP-mediated biological response process and environmental impact assessment simultaneously. Herein, 50 mg kg-1 La2O3 NPs were added to soils without and with earthworms for cherry radish growth for 50 days to investigate the response changes of metabolites in radish above- and below-ground organs and rhizosphere bacterial communities. We found that La2O3 NP exposure, especially with earthworms, notably increased the La bioavailability and uptake by taproots and eventually increased radish leaf sucrose content and plant biomass. The La2O3 NP exposure significantly altered metabolite profiles in taproot flesh and peel tissues, and particularly La2O3 NP exposure combined with earthworms was more conducive to La2O3 NPs to promote radish taproot peel to synthesize more secondary antioxidant metabolites. Moreover, compared with the control, the La2O3 NP exposure resulted in weaker and fewer correlations between rhizosphere bacteria and taproot metabolites, but this was recovered somewhat after the inoculation of earthworms. Altogether, our results provide novel insights into the soil-fauna-driven biological and biochemical impact of La2O3 NP exposure on edible root crops and the long-term environmental risks to the rhizosphere microbiota in agroecosystems.

Soil Fertility, Growth, Yield and Root Quality of Radish (Raphanus sativus L.) as Influenced by Integrated Nutrient Management Practices

ABSTRACT Radish is a popular root vegetable grown worldwide and young fresh tender tuberous roots can be cooked or eaten raw in salads. The haphazard use of inorganic fertilizers for long period deteriorates fertility and productivity of soil. Therefore, this study was proposed for an extensive evaluation of different combinations of organic manure, bio fertilizer with inorganic fertilizers and influence on growth, yield, quality, and soil health. This study was carried out on radish cv. Japanese white with 13 treatment combinations in randomized block design with three replications. Soil quality was increased in terms of availability of N(Nitrogen), P (Phosphorus) and K (Potassium) to the tune of 15.17, 18.66 and 13.0%, respectively by integrated module 90% RDF (Recommended dose of fertilizers) + 10% SMC (Spent Mushroom Compost) + FYM (Farm Yard Manure) + AZB (Azotobacter) + PSB (Phosphate Solubilising Bacteria). Application of 90% Recommended dose of Fertilizers +10% Spent Mushroom Compost + Farm Yard Manure + Azotobacter + Phosphate Solubilising Bacteriarecorded maximum number of leaves (15.68), leaf size (21.01 x 9.88 cm), root size (18.80 x 2.86 cm), root weight (130.42 g), root yield (341.68q/ha) while, 60% Recommended dose of fertilizers +40% Spent Mushroom Compost+ Farm Yard Manure + Azotobacter + Phosphate Solubilising Bacteria proved best for quality attributes. Increase in yield under T6 was to the tune 11.44% over standard practices. Our findings of integrated nutrient management approaches may effectively address the present notion of “farming for health” to maintain soil health for sustainable crop production.

Effects of intercropping on Se accumulation and growth of pakchoi, lettuce and radish

Selenium is one of the most basic trace elements in the human body. It is necessary to improve the selenium content in agricultural products through agricultural planting technology to ensure that human nutrition and health need selenium. Therefore, our research passed the effect of intercropping on the growth and selenium accumulation of pakchoi, lettuce and radish were studied through pot experiments to determine whether intercropping of the three crop species can improve their selenium accumulation ability. The results showed that intercropping increased the root and shoot biomass of pakchoi and radish compared with the monocultures, while the biomass of roots and shoots decreased in other intercropping combinations. Intercropping also affected the photosynthetic pigment content of the three crop species. Specifically, the photosynthetic pigments increased in pakchoi and decreased in radish after intercropping. Notably, intercropping the three crop species together increased the SOD (superoxide dismutase) activities of the three crops compared with the monocultures. Meanwhile, intercropping radish with lettuce significantly increased the activities of SOD and CAT (catalase) in radish. Intercropping also increased the soluble sugar content in pakchoi and soluble protein content of radish relative to the monocultures. Furthermore, intercropping decreased the selenium content and the bioconcentration factor of the roots of the three vegetable crops, but improved the shoot selenium content, the bioconcentration factor and the transport factor of Se in pakchoi and radish. In conclusion, intercropping combination of pakchoi and radish can improve selenium accumulation in the edible parts of the crops, which is significant for efficient production of selenium-enriched vegetables.

Effect of Coating Agents of Silver Nanoparticles on Their Accumulation in and Growth of Radish (Raphanus sativus )

Effect of Coating Agents of Silver Nanoparticles on Their Accumulation in and Growth of Radish (Raphanus sativus )

Effects of Co-Digestion Sludge Application on Soil Productivity

Anaerobic digestion and agricultural use of sewage sludge are effective methods to treat and dispose of sewage sludge, respectively. Then, the anaerobic digested sewage sludge is applied in agricultural land and the improvement of soil properties can be expected. In this study, with the purpose of evaluating the potential of co-digestion sludge for agricultural use, plot experiments with two vegetable species (radish and Chinese cabbage) and three application dosages were carried out in a short term of six months. Focus was on soil physical properties, soil nutrient change and plant growth responses during the whole process. Results showed that application of co-digestion sludge had little effect on soil physical properties, including the bulk density, porosity, capillary porosity and non-capillary porosity. However, after the application of co-digestion sludge, the maximum increase in content of organic matter, total nitrogen, hydrolysable nitrogen, total phosphorus and available phosphorus in soil reached 51%, 125%, 212%, 15% and 87%, respectively, which supplied the available nutrients quickly and continuously. The application of co-digestion sludge promoted the growth of radish and Chinese cabbage, which was observed through increase of the leaf, root biomass and plants height. Consequently, co-digestion sludge has a good application prospect for improving soil productivity as fertilizer.

Effect of bio-nano-selenium on yield, nutritional quality and selenium content of radish

In order to improve the added value and functionality of radish, an agricultural strategy of bio-nano-selenium was established in this study. Using bio-nano-selenium as an exogenous source of selenium fortification, foliar sprays were applied with different concentration gradients and fertilization periods to study its effects on radish yield, quality traits and selenium content in various parts. The results showed that exogenous selenium supplementation increased the root to leaf ratio of radish (125.66%), promoted the underground transfer of nutrients in radish, and increased the yield by 41.56% on average. The soluble solid content (5.85%), content of soluble sugar (25.13%), reducing sugar content (10%) and dry matter content (3.6%) of radish were increased, but the vitamin C content (15.49%) and water soluble protein content (25%) were decreased, and the crude fiber content was not affected. The bio-nano-selenium had a significant effect on the selenium content of radish parts, in the order of radish leaves > radish peel > radish roots > radish core. In this study, the growth, yield, quality and selenium content of various parts of radish was comprehensively studied by using self-developed bio-nano-selenium for the first time. The results showed that exogenous supplementation of bio-nano-selenium could significantly increase the selenium content of radish and overall promote the growth of radish and improve yield and quality traits.

Responses of cherry radish to different types of microplastics in the presence of oxytetracycline

Croplands have become a hotspot for antibiotic and microplastic (MP) pollution. However, little is known regarding their combined effects on crops. In this study, the individual and combined effects of oxytetracycline (OTC) and three MPs (i.e., polypropylene (PP), polyamide (PA), and polyvinylchloride (PVC)) on cherry radish were investigated using pot experiments. Individually, OTC (50 mg kg−1), PA (2%, w/w), and PP (2%, w/w) induced negligible effects on cherry radish biomass and the root/shoot ratio. However, PVC (2%, w/w) significantly inhibited cherry radish growth; that is, its shoot and root fresh weight decreased by 46.2% and 81.1%, respectively. In the combined exposure groups, OTC alleviated the adverse effects of PVC on the cherry radish leaf number and shoot fresh weight. This was linked to that OTC increased the content of photosynthetic pigments. Superoxide dismutase activity in cherry radish roots was inhibited to different extents in all treatment groups except for the PA and PVC treatments. Malondialdehyde (MDA) content in cherry radish roots increased in all treatment groups, suggesting that both OTC and MPs caused oxidative damage to cherry radish root cells, therefore inhibiting cherry radish root growth. However, the presence of OTC non-significantly changed the effects of MPs on cherry radish roots. Irrespective of OTC presence, MPs induced a reduction in the root/shoot ratio of cherry radish, suggesting that the inhibitory effect of MPs on cherry radish roots was stronger than that on shoots. These findings contribute to the evaluation of the phytotoxicity of antibiotics and MPs in soil-vegetable systems.

Selection of Companion Plants for Pest Control of Cruciferous Crops

Background and objective: This study was conducted to determine the types of pests that occur in spring and autumn on three types of cruciferous vegetables, which are host plants, and investigate the actual effect by selecting companion plants with pest control effects.Methods: This study selected 3 types of cruciferous crops and 17 types of companion plants through literature review to investigate the types of pests and damage index occurring in spring and autumn. After examining the number of pests that occur per 10 plants on a weekly basis, the mean and standard deviation were calculated using the IBM SPSS statistics Ver. 25 program.Results: There was little damage to pests in 17 types of herbs, flowers, and vegetables. When grown together with cruciferous vegetables, 8 types of herbs, 5 types of vegetables, and 4 types of flowers showed little pest damage. In particular, companion plants that suffered less pest damage were catnip, chamomile, thyme, and nasturtium in spring cultivation and thyme, basil, catnip, chamomile, rosemary, and marigold in autumn cultivation. Shoot growth of Kimchi cabbage and white radish in the experimental group planted with vegetables was 148-181% of the control group using conventional cultivation but companion planting with rosemary, nasturtium, and marigold showed less growth than the control group, especially the experimental group planted with rosemary, which showed 45-53% of growth compared to the control group. The companion plants with good growth in the root of white radish were celery, beet, basil, and marigold. There was little difference in the degree of pest damage to crops between the central planting with a few companion crops and the parallel, alternate, and perimeter planting with many companion crops.Conclusion: Pests can be managed effectively with a pest management technique that utilizes the pull effect based on the interaction between frequently occurring pest types and companion plants.

Effect of microplastics on silty loam soil properties and radish growth

Abstract Microplastics (particles of plastics <5 mm) affect the physical, biological and hydrological properties of agricultural soil, as well as crop growth. We investigated the effect of the addition of three microplastics (high-density polyethylene (HDPE), polyvinyl chloride (PVC), and polystyrene (PS)) at a concentration of 5% (w/w) to a silty loam soil on selected soil properties and growth of radish (Raphanus sativus L. var. sativus). Changes in the soil properties and radish growth in three microplastic treatments were compared with the control. Soil properties (bulk density, hydraulic conductivity, sorptivity, water repellency) were estimated for each treatment at the beginning and at the end of the radish growing period (GP). The bulk density was significantly lower in the HDPE and PVC treatments compared to the control within the measurement at the beginning of the GP and in all microplastic treatments compared to the control at the end of the GP. The values of hydraulic conductivity and water sorptivity did not show significant differences between any treatments within the measurement at the beginning of GP, but they were significantly higher in the HDPE treatment compared to the control at the end of the GP. The growth of radish was characterized by the plant biomass and effective quantum yield of Photosystem II (Y (II)). We did not find a statistically significant difference in the total biomass of radish between any of the experimental treatments, maybe due to used concentration of microplastics. The mean value of Y (II) was significantly higher in all microplastic treatments compared to control only within the last measurement at the end of the GP. A statistically significant change of Y(II) in all microplastic treatments may indicate functional shift in soil properties; however, the measured values of the soil characteristics have not shown the significant changes (except for the bulk density values in all microplastic treatments and hydraulic conductivity together with sorptivity in HDPE treatment within the measurement at the end of GP).

Farming on Mars: Treatment of basaltic regolith soil and briny water simulants sustains plant growth.

A fundamental challenge in human missions to Mars is producing consumable foods efficiently with the in situ resources such as soil, water, nutrients and solar radiation available on Mars. The low nutrient content of martian soil and high salinity of water render them unfit for direct use for propagating food crops on Mars. It is therefore essential to develop strategies to enhance nutrient content in Mars soil and to desalinate briny water for long-term missions on Mars. We report simple and efficient strategies for treating basaltic regolith simulant soil and briny water simulant for suitable resources for growing plants. We show that alfalfa plants grow well in a nutrient-limited basaltic regolith simulant soil and that the alfalfa biomass can be used as a biofertilizer to sustain growth and production of turnip, radish and lettuce in the basaltic regolith simulant soil. Moreover, we show that marine cyanobacterium Synechococcus sp. PCC 7002 effectively desalinates the briny water simulant, and that desalination can be further enhanced by filtration through basalt-type volcanic rocks. Our findings indicate that it is possible to grow food crops with alfalfa treated basaltic regolith martian soil as a substratum watered with biodesalinated water.

Influence of Electric, Magnetic and Bio Film on the Growth, Yield and Yield Attributing Traits of Radish (Raphanus sativus L.)

The present study was carried out for Influence on electric, magnetic and Bio - film in the growth, yield, and yield attributing traits of radish (Raphanus sativus L.) was made to identify the effect of seed priming of different kinds on seed quality characters of radish and to find out suitable seed priming method for radish. For this purpose, 13 priming treatments were taken in Randomized Block Design including control on radish seed was studied under field conditions during Rabi, 2020-21. Analysis of variance for the data revealed that significance mean sum of squares due to seed priming treatments were observed for all the characters under study viz., Field emergence percentage, Plant height (20, 40 DAS and at harvest), Days to maturity, total number of leaves, dry weight of leaves, fresh weight of leaves, seed yield per plot, seed yield per plant and seed yield per hectare which were highly significant at 5% level of significance indicating presence of good amount of variability among the treatments for these characters. Seed priming with T3 – Magnetic (600 gauss) significantly affected characters studied in field experiment. Thus, application of T3 – Magnetic (600 gauss) may be useful for improving growth, yield, and yield attributing traits of radish. The experiment was laid out in Randomized block design (RBD).

Radish (Raphanus sativus L.) growth and gas exchange responses to exogenous ascorbic acid and irrigation levels

Radish (Raphanus sativus L.) growth and gas exchange responses to exogenous ascorbic acid and irrigation levels

Consolidating understanding of variation as part of STEM: experimenting with plant growth

AbstractIntegrated STEM activities are espoused as appropriate for enhancing student learning in relation to statistical concepts; however, a greater understanding of the way in which students’ ideas about those concepts develop is needed to maximise the learning potential offered by engagement in STEM activities. For this study, plant growth was chosen as a topic from the Year 6 Australian Science Curriculum as an appropriate context to employ aspects of the four STEM disciplines to explore students’ developing ideas about variation. Sixty-four Year 6 students across three school terms worked in groups of four to trial various treatments and their effects on the growth of radish or wheat seeds. This report considers two aspects of student learning related to this topic based on (i) the formative assessment of features of students’ workbook entries specifically related to variation during the part of the classroom activity based on their TinkerPlots graphs and (ii) the later summative evidence of learning in responses to end-of-year questions on the activity for 56 of the students. The workbook entries are presented via a qualitative analysis to provide evidence of the forming of understanding of variation in a STEM context, with the SOLO Taxonomy being employed to assess the longer-term evidence and developmental nature of that learning. Overall, a broader picture has emerged of the potential for developing appreciation of variation in a STEM context in primary school.

Effect of consecutive sowings and spacing on growth and yield of radish

An experiment was conducted at College of Horticulture, Dapoli, Ratnagiri (Dist.), during the period Rabi season to study the effect of consecutive sowings and spacing on growth and yield of radish.The study was conducted with three consecutive sowings of radish viz. C1- Sowing during second fortnight of October., C2-Sowing during second fortnight of November and C3- Sowing during second fortnight of December having four row spacings viz., T1-20 cm spacing between two rows., T2-30 cm spacing between two rows., T3-40 cm spacing between two rows and T4-Broadcasting. The results indicated that C3 i.e.,sowing during second fortnight of December was performed better and found significantly superior over other sowing time in respect of plant height and yield per plot . However, days to germination, number of leaves, average leaf area, weight of plant and dry matter of leaves was found significantly superior in C1i.e. Sowing during second fortnight of October. In respect of spacing, the wider spacing T1 i.e. 20 cm row spacing was found significantly superior in plant height and dry matter of leaves, while average leaf area found significantly superior in T2. In respect of interaction of consecutive sowings and spacing, the treatment combination C3T3 was found significantly superior in plant height and yield per plot. While average leaf area significantly superior in C3T4. Hence, the treatment C3T3 (December sowing with 40 cm row spacing) was found to be most profitable

Influence of Poultry manure and Sugarcane molasses on the growth and yield of Radish (Raphanus sativus) L.var. “Beeralu Rabu”

A pot experiment was carried out to determine the effect of poultry manure and sugarcane molasses on the growth and yield of Radish (Raphanus sativus) L.var. “Beeralu Rabu”. This experiment was designed in a completely randomized design (CRD) with ten replications. Treatments were Recommended NPK inorganic fertilizers (T1), 10 t/ha Poultry manure, Half dosage of recommended NPK(T2), 10 t/ha Poultry manure ,1 t/ha Sugarcane molasses , Half dosage of recommended NPK(T3): 10 t/ha Poultry manure, 2 t/ha Sugarcane molasses ,Half dosage of recommended NPK(T4),10 t/ha Poultry manure, 3 t/ha Sugarcane molasses , Half dosage of recommended NPK (T5), 10 t/ha Poultry manure , 4 t/ha Sugarcane molasses , Half dosage of recommended NPK (T6).Results revealed that plants grown in 10 t/ha Poultry manure, 3 t/ha Sugarcane molasses , Half dosage of recommended NPK (T5) showed significantly (p < 0.05) better performance in the measured growth parameters viz. Plant height (34.7cm), Number of Leaves , Diameter of the edible root (4.96 cm) , Fresh weight of the edible root (39.28 g), Chlorophyll content ,Fresh weight of shoot ( 19.85 g )and Dry weight of shoot (4.02 g) of the Radish plant while the lowest performance was observed in control (T1). Therefore, it could be concluded that 10 t/ha Poultry manure, 3 t/ha Sugarcane molasses, Half dosage of recommended NPK (T5) can be used to enhance the growth of Radish (Raphanus sativus) L.var. “Beeralu Rabu”

Influence of Poultry manure and Sugarcane molasses on the growth and yield of Radish (Raphanus sativus) L.var. "Beeralu Rabu"

Influence of Poultry manure and Sugarcane molasses on the growth and yield of Radish (Raphanus sativus) L.var. "Beeralu Rabu"

Effect of biochar and nitrogen on soil characteristics, growth and yield of radish (Raphanus sativus L.) at Paklihawa, Rupandehi condition of Nepal

An experiment on effect of biochar and nitrogen on soil characteristics, growth and yield of radish (Raphanus sativus L.) was conducted at Institute of Agriculture and Animal Science (IAAS), Paklihawa, Rupandehi, from November 2019 to February 2020. The experiment was laid in Randomized Complete Block Design with two factors: nitrogen and biochar, each factor having four levels (biochar: 0 t/ha, 5 t/ha, 10 t/ha and 15 t/ha and nitrogen: 0 kg/ha, 50 kg/ha, 100 kg/ha, 200 kg/ha), resulting in sixteen treatment combinations. Biochar application was found to be effective in improving soil bulk density, pH, soil organic matter and soil nitrogen and potassium content. Application of nitrogen fertilizer (200 kg/ha) and biochar (15 t/ha) alone, and in combination, showed significantly higher root dry matter (15.83 gm, 16.63 gm and 20.57 gm), biological yield (80 t/ha, 63.75 t/ha, and 95.75) and root yield (26.74 t/ha, 24.06 t/ha and 30.32 t/ha). In comparison to the sole effects of the highest dose of nitrogen fertilizer (200 kg/ha) and the highest dose of biochar (15 t/ha), their combined application showed the increased yield in radish root by 13.38% and 26.01%, respectively, indicating that the combined effect of biochar and nitrogen is more productive for the growth and yield in radish crop as compared to the sole effect of nitrogen and biochar.

Energy recovery and waste treatment using the co-pyrolysis of biomass waste and polymer.

The pyrolysis of spent coffee grounds (SCG) and polymers was examined as a waste treatment option for energy recovery and carbon sequestration. Rice straw-derived biochar was used as control biochar to evaluate the sorption capacity and energy production capability of SCG-derived biochar. SCG are characterised by high levels of volatile matter, rendering them suitable as an energy source. SCG were converted to biochar, bio-oil, and syngas via pyrolysis, with yields of 22%, 33%, and 45%, respectively. The high heating value (HHV) of the biochar and bio-oil was 20.6 and 22.9 MJ kg-1, respectively, indicating that they could be used as supplementary fuels. Co-pyrolysis with polymers (20 v v%-1) increased the HHV of biochar. Accordingly, the maximum production of CH4 and H2 increased from 0.3 and 0.04 mmol g-1 to 3.4-6.3 and 0.8-1.3 mmol g-1, respectively. Polystyrene most strongly enhanced the yields of CH4 and H2, followed by polypropylene and polyethylene; this order was likely to be in accordance with the number of carbon and hydrogen atoms present in the monomers. Similar to rice straw-derived biochar, the biochar produced from SCG demonstrated a high sorption capacity for 2,4-dinitrotoluene and chromate due to its high carbon content and anion exchange capacity, respectively. Laboratory pot tests revealed that the coffee grounds-derived biochar was able to increase the growth of young radish. Our results suggest that the pyrolysis of SCG and polymer may be a promising option for waste treatment, energy production, and carbon sequestration.

Coal fly ash and nitrogen application as eco-friendly approaches for modulating the growth, yield, and biochemical constituents of radish plants

Plants are confronting a variety of environmental hazards as a result of fast climate change, which has a detrimental influence on soil, plant growth, and nutrient status. As a result, the present study aims to evaluate the influence of various fly ash concentrations (5, 10, 15, 20, 25, 30, and 35% FA) mixed with the optimum concentrations of nitrogen in the form of urea (0.5 g pot−1) on the growth, productivity and biochemical constituents of radish plants. Energy-dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM) were used to assess soil physical–chemical properties and FA nutrient status. Results suggested that FA added many essential plant nutrients to the growth substrate and improved some important soil characteristics such as pH, electric conductivity, porosity, and water holding capacity. Also, the results revealed that the low concentrations of FA up to 20% were found to boost radish growth, yield, chlorophyll, carotenoids, and mineral content. While the highest concentrations of FA (25–35%) decreased radish growth and yield, increased oxidative stress through increased lipid peroxidation (MDA) and caused a significant boost in ascorbic acid, proline, protein, and antioxidant enzyme activities. Furthermore, SEM of radish leaf revealed an enhancement in the stomatal pore of radish leaf under different levels of FA. In conclusion, combining 15% fly ash with 0.5 g nitrogen in the form of urea significantly enhanced radish yield by enhancing antioxidant activity such as catalase, peroxidase, ascorbate peroxidase, Guaiacol peroxidase, superoxide dismutase, nitrate reductase and reducing oxidative stress, potentially reducing fly ash accumulation and environmental pollution.