Pub Date : 2023-05-20DOI: 10.1080/19315260.2023.2211576
J. A. Teixeira da Silva
ABSTRACT Open Researcher and Contributor ID (ORCID) is supposed to be a permanent identifier for researchers. Despite this, the ORCID registry or database carries entries of “researchers” that are evidently not as claimed, dummy accounts, or “ghost” accounts. As part of an ongoing project to assess the oddities in, and reliability of, ORCID, this letter records the existence of 29 cases of “researchers” with the names (first or family) of vegetables. Editors are cautioned to verify ORCID accounts associated with submitted papers to ensure their validity.
{"title":"ORCIDs of “researchers” with the names of vegetables","authors":"J. A. Teixeira da Silva","doi":"10.1080/19315260.2023.2211576","DOIUrl":"https://doi.org/10.1080/19315260.2023.2211576","url":null,"abstract":"ABSTRACT Open Researcher and Contributor ID (ORCID) is supposed to be a permanent identifier for researchers. Despite this, the ORCID registry or database carries entries of “researchers” that are evidently not as claimed, dummy accounts, or “ghost” accounts. As part of an ongoing project to assess the oddities in, and reliability of, ORCID, this letter records the existence of 29 cases of “researchers” with the names (first or family) of vegetables. Editors are cautioned to verify ORCID accounts associated with submitted papers to ensure their validity.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46562958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-20DOI: 10.1080/19315260.2023.2212371
Bizhen Hu, L. Brandenberger, Matt Beartrack, L. Carrier, C. Goad
ABSTRACT Plastic mulch is used for agricultural production to improve crop performance and mediate local environmental concerns. Paper mulch is an alternative to plastic mulch, it is effective and more biodegradable. The performance of plastic and paper mulch materials in agricultural production varies according to climatic environments, production practices, and crops. The objective of this study was to investigate the performance of paper mulch compared with plastic mulch and bare soil for tomato (Solanum lycopersicum L.) field production in 2018 and 2021. Data on weed control, soil temperature, and tomato yield were recorded. Weed coverage and weeding time were reduced in paper and plastic mulch treatments compared to bare soil. Soil temperature in 2021 was lower in paper and plastic mulch treatments than in bare soil. Tomato yield was greater in plastic mulch than paper mulch and bare soil. Tomato yield for paper mulch treatments was not different from that of bare soil treatments. Paper mulch offered comparable weed control benefits as plastic mulch, and comparable tomato yield as bare soil.
{"title":"Field performance of paper and plastic mulches for fresh market tomato production","authors":"Bizhen Hu, L. Brandenberger, Matt Beartrack, L. Carrier, C. Goad","doi":"10.1080/19315260.2023.2212371","DOIUrl":"https://doi.org/10.1080/19315260.2023.2212371","url":null,"abstract":"ABSTRACT Plastic mulch is used for agricultural production to improve crop performance and mediate local environmental concerns. Paper mulch is an alternative to plastic mulch, it is effective and more biodegradable. The performance of plastic and paper mulch materials in agricultural production varies according to climatic environments, production practices, and crops. The objective of this study was to investigate the performance of paper mulch compared with plastic mulch and bare soil for tomato (Solanum lycopersicum L.) field production in 2018 and 2021. Data on weed control, soil temperature, and tomato yield were recorded. Weed coverage and weeding time were reduced in paper and plastic mulch treatments compared to bare soil. Soil temperature in 2021 was lower in paper and plastic mulch treatments than in bare soil. Tomato yield was greater in plastic mulch than paper mulch and bare soil. Tomato yield for paper mulch treatments was not different from that of bare soil treatments. Paper mulch offered comparable weed control benefits as plastic mulch, and comparable tomato yield as bare soil.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47273821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-26DOI: 10.1080/19315260.2023.2207046
V. Russo
{"title":"The editor’s field – not all science is the same. Some are theoretical and others","authors":"V. Russo","doi":"10.1080/19315260.2023.2207046","DOIUrl":"https://doi.org/10.1080/19315260.2023.2207046","url":null,"abstract":"","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46059044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-22DOI: 10.1080/19315260.2023.2203180
Priya Sonkamble, C. Narayanankutty, Deepu Mathew, K. J. John
ABSTRACT Step-wise analysis of core variability in centers of origin and distribution can resolve conflicts over the taxonomic status of any plant species. Ash gourd [Benincasa hispida (Thunb.) Cogn.] and tinda [Praecitrullus fistulosus (Stocks) Pangalo] are vegetables in tropical and subtropical regions of the world. Identification of unique genotypes under Benincasa has led to a situation that requires verifying the monotypic status of this genus. Tinda, also known as round melon, was recommended to be included as a second species in Benincasa. This study tested the hypothesis that Benincasa is monotypic. Morphological evaluation of a mini-core collection comprising 26 ash gourd and 5 tinda entries exhibited variability. Ash gourd and tinda genotypes varied for multiple morphological traits. Cluster analysis differentiated ash gourd and tinda, with nearly 70% dissimilarity. All ash gourd accessions were freely crossable in both directions, ruling out the possibility of any new species. Non-cross-ability of tinda with ash gourd has confirmed its genetic distinctiveness. Nine barcodes distinctly differentiating the genera were identified from the matK and ITS2 loci. With the characteristic morphological traits, non-crossable nature and distinct barcodes that are not shared with any of the members of Praecitrullus, Benincasa should be considered monotypic and a separate genus status retained for Praecitrullus.
{"title":"Morphology, cross ability, and barcode analysis suggest the monotypic status of Benincasa and distinct genus status for Praecitrullus","authors":"Priya Sonkamble, C. Narayanankutty, Deepu Mathew, K. J. John","doi":"10.1080/19315260.2023.2203180","DOIUrl":"https://doi.org/10.1080/19315260.2023.2203180","url":null,"abstract":"ABSTRACT Step-wise analysis of core variability in centers of origin and distribution can resolve conflicts over the taxonomic status of any plant species. Ash gourd [Benincasa hispida (Thunb.) Cogn.] and tinda [Praecitrullus fistulosus (Stocks) Pangalo] are vegetables in tropical and subtropical regions of the world. Identification of unique genotypes under Benincasa has led to a situation that requires verifying the monotypic status of this genus. Tinda, also known as round melon, was recommended to be included as a second species in Benincasa. This study tested the hypothesis that Benincasa is monotypic. Morphological evaluation of a mini-core collection comprising 26 ash gourd and 5 tinda entries exhibited variability. Ash gourd and tinda genotypes varied for multiple morphological traits. Cluster analysis differentiated ash gourd and tinda, with nearly 70% dissimilarity. All ash gourd accessions were freely crossable in both directions, ruling out the possibility of any new species. Non-cross-ability of tinda with ash gourd has confirmed its genetic distinctiveness. Nine barcodes distinctly differentiating the genera were identified from the matK and ITS2 loci. With the characteristic morphological traits, non-crossable nature and distinct barcodes that are not shared with any of the members of Praecitrullus, Benincasa should be considered monotypic and a separate genus status retained for Praecitrullus.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43283744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.1080/19315260.2023.2187503
Z. Siddiqui, Manzoor R. Khan, Aqib
ABSTRACT The disease complex affecting bottle gourd [Lagenaria siceraria (Mol.) Standl.] caused by Meloidogyne incognita and Fusarium oxysporum results in high yield loss and there is a need for their management. Nanoparticles (NPs) and arbuscular mycorrhizae have potential in disease management. The impacts of 0.10 g.L−1 zirconium dioxide nanoparticles (ZrO2 NPs) (applied as foliar spray or seed priming) and AM fungus Rhizophagus irregularis were determined when applied alone, or in combination, on the disease complex of bottle gourd. Use of ZrO2 NPs as seed priming and foliar application increased plant growth and photosynthetic pigments and reduced disease indices, galling and population of M. incognita. Foliar application of ZrO2 NPs increased plant growth and photosynthetic pigments and reduce disease indices, galling, and population of M. incognita than did seed priming. Use of R. irregularis alone resulted in lessened plant growth and photosynthetic pigments than NPs foliar application alone. Use of R. irragularis with NPs foliar application was best for management of disease complex of bottle gourd than its use as seed priming. Wilt disease indices were rated 1–5. Use of R. irregularis/NPs reduced disease incidence, and disease indices were reduced to 1 in treatment where R. irragularis was used with ZrO2 NPs. Root colonization by R. irragularis was similar when used alone or with NPs. Inoculation of pathogens reduced colonization by R. irregularis. Management of the disease complex of bottle gourd may be achieved by use of 500 infective propagules of R. irragularis with 0.10 g.L−1 ZrO2 NPs foliar application.
{"title":"Comparative efficacy of zirconium dioxide nanoparticles and AM fungus against wilt disease complex of bottle gourd and upregulation of biochemical and physiological processes","authors":"Z. Siddiqui, Manzoor R. Khan, Aqib","doi":"10.1080/19315260.2023.2187503","DOIUrl":"https://doi.org/10.1080/19315260.2023.2187503","url":null,"abstract":"ABSTRACT The disease complex affecting bottle gourd [Lagenaria siceraria (Mol.) Standl.] caused by Meloidogyne incognita and Fusarium oxysporum results in high yield loss and there is a need for their management. Nanoparticles (NPs) and arbuscular mycorrhizae have potential in disease management. The impacts of 0.10 g.L−1 zirconium dioxide nanoparticles (ZrO2 NPs) (applied as foliar spray or seed priming) and AM fungus Rhizophagus irregularis were determined when applied alone, or in combination, on the disease complex of bottle gourd. Use of ZrO2 NPs as seed priming and foliar application increased plant growth and photosynthetic pigments and reduced disease indices, galling and population of M. incognita. Foliar application of ZrO2 NPs increased plant growth and photosynthetic pigments and reduce disease indices, galling, and population of M. incognita than did seed priming. Use of R. irregularis alone resulted in lessened plant growth and photosynthetic pigments than NPs foliar application alone. Use of R. irragularis with NPs foliar application was best for management of disease complex of bottle gourd than its use as seed priming. Wilt disease indices were rated 1–5. Use of R. irregularis/NPs reduced disease incidence, and disease indices were reduced to 1 in treatment where R. irragularis was used with ZrO2 NPs. Root colonization by R. irragularis was similar when used alone or with NPs. Inoculation of pathogens reduced colonization by R. irregularis. Management of the disease complex of bottle gourd may be achieved by use of 500 infective propagules of R. irragularis with 0.10 g.L−1 ZrO2 NPs foliar application.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48972179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-11DOI: 10.1080/19315260.2023.2187504
I. Udo, J. Akpan, O. Bello, V. Otie
ABSTRACT Root-knot nematode Meloidogyne spp. causes galls on pepper (Capsicum spp L.) roots leading to yield loss. Root-knot disease control in pepper with chemical nematicides is effective but environmental and health concerns are serious drawbacks. Use of arbuscular mycorrhizal fungi (AMF) for control may present a solution. A screenhouse experiment was conducted to assess bio-control efficacy of 4 AMF species against Meloidogyne incognita infecting pepper genotypes with known resistance. Septoglomus deserticola and Funneliformis mosseae were the most efficient (p = .05) AMF species in inhibiting nematode infection, enhancing growth and fruit yield of pepper genotypes. Averaged across pepper genotypes, S. deserticola increased fresh fruit yield by 2.42% and 6.98% compared with Claroideoglomus claroideum and Gigaspora gigantea, respectively, while F. mosseae increased it by 1.43% and 5.95%, respectively. These AMF species might be used as bio-control agents of M. incognita infecting these pepper genotypes.
{"title":"Arbuscular mycorrhizal fungus species differed in bio-control potential on pepper genotypes infected with Meloidogyne incognita","authors":"I. Udo, J. Akpan, O. Bello, V. Otie","doi":"10.1080/19315260.2023.2187504","DOIUrl":"https://doi.org/10.1080/19315260.2023.2187504","url":null,"abstract":"ABSTRACT Root-knot nematode Meloidogyne spp. causes galls on pepper (Capsicum spp L.) roots leading to yield loss. Root-knot disease control in pepper with chemical nematicides is effective but environmental and health concerns are serious drawbacks. Use of arbuscular mycorrhizal fungi (AMF) for control may present a solution. A screenhouse experiment was conducted to assess bio-control efficacy of 4 AMF species against Meloidogyne incognita infecting pepper genotypes with known resistance. Septoglomus deserticola and Funneliformis mosseae were the most efficient (p = .05) AMF species in inhibiting nematode infection, enhancing growth and fruit yield of pepper genotypes. Averaged across pepper genotypes, S. deserticola increased fresh fruit yield by 2.42% and 6.98% compared with Claroideoglomus claroideum and Gigaspora gigantea, respectively, while F. mosseae increased it by 1.43% and 5.95%, respectively. These AMF species might be used as bio-control agents of M. incognita infecting these pepper genotypes.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47811731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-26DOI: 10.1080/19315260.2023.2183172
V. Russo
{"title":"The Editor’s field – The subject is citations, again","authors":"V. Russo","doi":"10.1080/19315260.2023.2183172","DOIUrl":"https://doi.org/10.1080/19315260.2023.2183172","url":null,"abstract":"","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48426906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-13DOI: 10.1080/19315260.2023.2177230
Naomi Chebiwot Chelang’a, I. Kariuki, G. Obare
ABSTRACT Procurement of fresh produce necessitates a consistent, high-quality, supply. This study examined effects of a single, and combined, market strategy on gross margin of smallholder French bean[s] (Phaselous vulgaris L.) farmers. A random sample of 215 farmers was used and a multinomial endogenous switching regression model analyzed the data. The choice of a market outlet combination was influenced by gender of the household decision-maker, household size, education, off-farm income, group membership, extension service, farming experience, off-farm income, credit access, and market reliability. Participating in multiple market outlets increased gross margin per season. Smallholder farmers reported USD 225.66 per season when selling in all vertical coordination options. Growers were worse off by participating in the contract option only, with reduced gross margin. Adoption of all market outlets was positively influenced by education and off-farm income. Smallholder French bean farmer’s socio-economic circumstances matter in shaping the choice of market outlet combinations, while market diversification is important for smallholder producers.
{"title":"Do market outlet combinations improve smallholder gross margin for smallholder French beans producers?","authors":"Naomi Chebiwot Chelang’a, I. Kariuki, G. Obare","doi":"10.1080/19315260.2023.2177230","DOIUrl":"https://doi.org/10.1080/19315260.2023.2177230","url":null,"abstract":"ABSTRACT Procurement of fresh produce necessitates a consistent, high-quality, supply. This study examined effects of a single, and combined, market strategy on gross margin of smallholder French bean[s] (Phaselous vulgaris L.) farmers. A random sample of 215 farmers was used and a multinomial endogenous switching regression model analyzed the data. The choice of a market outlet combination was influenced by gender of the household decision-maker, household size, education, off-farm income, group membership, extension service, farming experience, off-farm income, credit access, and market reliability. Participating in multiple market outlets increased gross margin per season. Smallholder farmers reported USD 225.66 per season when selling in all vertical coordination options. Growers were worse off by participating in the contract option only, with reduced gross margin. Adoption of all market outlets was positively influenced by education and off-farm income. Smallholder French bean farmer’s socio-economic circumstances matter in shaping the choice of market outlet combinations, while market diversification is important for smallholder producers.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49300853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-13DOI: 10.1080/19315260.2023.2177231
T. Taguchi, S. Motoki
ABSTRACT One-year-old asparagus (Asparagus officinalis L.) plants are cultivated in temperate regions, but effects of climatic conditions on them are not clear. More producers are growing 1-year plants, and it is necessary to establish appropriate cultivar selection and cultivation practices to stabilize yields in response to fluctuating weather conditions. The relationship between weather conditions and growth and yield of asparagus “Taiho-wase,” “Early California,” and “UC157,” grown using the whole harvest cultivation method for 1-year-old plants over 5 years, was assessed. Yields were reduced when weather conditions included low duration of sunshine in summer, high precipitation in fall, and low temperature during early harvest. “Early California” was highly susceptible to weather conditions, although it is a high-yielding cultivar when appropriate cultivation practices are used. “Taiho-wase” had little annual variation. The field trials conducted over multiple years clarified effects of weather conditions on cultivars.
{"title":"Growing conditions on growth and yield of one-year-old asparagus plants of the cultivars ‘Early California’, ‘UC157’, and ‘Taiho-wase’","authors":"T. Taguchi, S. Motoki","doi":"10.1080/19315260.2023.2177231","DOIUrl":"https://doi.org/10.1080/19315260.2023.2177231","url":null,"abstract":"ABSTRACT One-year-old asparagus (Asparagus officinalis L.) plants are cultivated in temperate regions, but effects of climatic conditions on them are not clear. More producers are growing 1-year plants, and it is necessary to establish appropriate cultivar selection and cultivation practices to stabilize yields in response to fluctuating weather conditions. The relationship between weather conditions and growth and yield of asparagus “Taiho-wase,” “Early California,” and “UC157,” grown using the whole harvest cultivation method for 1-year-old plants over 5 years, was assessed. Yields were reduced when weather conditions included low duration of sunshine in summer, high precipitation in fall, and low temperature during early harvest. “Early California” was highly susceptible to weather conditions, although it is a high-yielding cultivar when appropriate cultivation practices are used. “Taiho-wase” had little annual variation. The field trials conducted over multiple years clarified effects of weather conditions on cultivars.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43512262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19315260.2023.2170302
Ot Alwan, G. Hamdi, Rafid Abdullah Maleh
ABSTRACT Arable areas frequently lack sufficient soil nutrients, necessitating use of fertilizers, whose excessive usage presents a threat to the environment, human health, and food safety. Natural plant-based growth regulators are inexpensive and favorable to the environment. Phytohormone methyl jasmonate (MeJA) is important in improving quality, productivity, and resistance against various pests, diseases, and environmental challenges. The objectives of this study were to compare effects of fertilization and application of MeJA on taproot yield, leaf nutritive value, and accumulation of sulforaphane (SF) in black radish (Raphanus sativus L. var. niger) taproots. Sulforaphane is a potent cytoprotective agent, promoting antioxidant, anti-inflammatory, antiglycative, and antimicrobial effects. The treatments (T) were: T1 = 3 t∙ha−1 of poultry litter (PL); T2 = PL+2.5 ml∙L−1 foliar application of micro-sulfur (S); T3 = PL+S+3 g∙L−1foliar application of sorbitol (SO); T4 = 480 kg∙ha−1 of NPK 20,20,20; T5 = NPK+S; T6 = NPK+S+SO. The second experiment was foliar application of MeJA at 0, 50, or 100 mg∙L−1. Application of treatments and MeJA alone, and in combination, improved growth, leaf nutrient concentrations, taproot yield components, and accumulation of SF in black radish. The T3 treatment produced the highest relative chlorophyll content (SPAD index = 31.56), most leaf area (495.33 dm2), tallest plants and longest taproot (57.95 and 17.68 cm), highest dry matter of leaf and taproot (8.10 and 12.57%), heaviest fresh weight of leaves and taproots (249.15 and 360.40 g) and highest total taproot yield (120.13 t∙ha−1). Treatment T6 produced highest nitrogen (N), phosphorus (P) and potassium (K) content in leaves, 3.57, 0.52 and 3.87 g 100 g, respectively, and highest SF content in taproots (8.5 mg/100 g). The 100 mg∙L−1 MeJA rate produced the largest leaf area (480.10 dm2), highest dry matter of leaf and taproot (7.31 and 11.65%), heaviest fresh weight of taproot (356.23 g), highest N, P, K and S content in leaves (3.45, 0.47, 3.69 and 0.375 g/100 g), most taproot yield (118.74 t∙ha−1) and highest FS content in taproot (9.62 g/100 g). The 100 mg∙L−1 foliar application of MeJA was effective in increasing and improving vegetative growth, taproot productivity, and FS accumulation in black radish.
{"title":"Methyl jasmonate and type of fertilization affect growth, production and accumulation of sulforaphane in black radish taproot","authors":"Ot Alwan, G. Hamdi, Rafid Abdullah Maleh","doi":"10.1080/19315260.2023.2170302","DOIUrl":"https://doi.org/10.1080/19315260.2023.2170302","url":null,"abstract":"ABSTRACT Arable areas frequently lack sufficient soil nutrients, necessitating use of fertilizers, whose excessive usage presents a threat to the environment, human health, and food safety. Natural plant-based growth regulators are inexpensive and favorable to the environment. Phytohormone methyl jasmonate (MeJA) is important in improving quality, productivity, and resistance against various pests, diseases, and environmental challenges. The objectives of this study were to compare effects of fertilization and application of MeJA on taproot yield, leaf nutritive value, and accumulation of sulforaphane (SF) in black radish (Raphanus sativus L. var. niger) taproots. Sulforaphane is a potent cytoprotective agent, promoting antioxidant, anti-inflammatory, antiglycative, and antimicrobial effects. The treatments (T) were: T1 = 3 t∙ha−1 of poultry litter (PL); T2 = PL+2.5 ml∙L−1 foliar application of micro-sulfur (S); T3 = PL+S+3 g∙L−1foliar application of sorbitol (SO); T4 = 480 kg∙ha−1 of NPK 20,20,20; T5 = NPK+S; T6 = NPK+S+SO. The second experiment was foliar application of MeJA at 0, 50, or 100 mg∙L−1. Application of treatments and MeJA alone, and in combination, improved growth, leaf nutrient concentrations, taproot yield components, and accumulation of SF in black radish. The T3 treatment produced the highest relative chlorophyll content (SPAD index = 31.56), most leaf area (495.33 dm2), tallest plants and longest taproot (57.95 and 17.68 cm), highest dry matter of leaf and taproot (8.10 and 12.57%), heaviest fresh weight of leaves and taproots (249.15 and 360.40 g) and highest total taproot yield (120.13 t∙ha−1). Treatment T6 produced highest nitrogen (N), phosphorus (P) and potassium (K) content in leaves, 3.57, 0.52 and 3.87 g 100 g, respectively, and highest SF content in taproots (8.5 mg/100 g). The 100 mg∙L−1 MeJA rate produced the largest leaf area (480.10 dm2), highest dry matter of leaf and taproot (7.31 and 11.65%), heaviest fresh weight of taproot (356.23 g), highest N, P, K and S content in leaves (3.45, 0.47, 3.69 and 0.375 g/100 g), most taproot yield (118.74 t∙ha−1) and highest FS content in taproot (9.62 g/100 g). The 100 mg∙L−1 foliar application of MeJA was effective in increasing and improving vegetative growth, taproot productivity, and FS accumulation in black radish.","PeriodicalId":40028,"journal":{"name":"International Journal of Vegetable Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49261291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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