Jing Liu, Jiuliang Chen, Shuhong Ye, Yanl Ding, Shuhang Guo, Ningning Fan
ABSTRACT Ginkgolic acid is a natural plant antifungal substance with important biological activities, present in the testa of Ginkgo biloba. This research aims to analyse the antifungal action of ginkgolic acid against pathogenic fungi. Ginkgolic acid was analyzed by HPLC and FTIR, and the in vitro inhibitory activities of ginkgolic acid against pathogenic fungi has been investigated. Results showed that ginkgolic acid was a small hydrophobic molecule composed of five ginkgolic acids and their derivatives, with the alkyl and phenolic hydroxyl groups being located on the skeleton of the aromatic ring. Among Nigrospora oryzae (N. oryzae), Alternaria alternata (A. alternata) and Penicillium expansum (P. expansum), ginkgolic acid showed the strongest inhibition against N. oryzae, and the inhibition rate of ginkgolic acid at 5 mg · mL-1 reached 65.82%. Ginkgolic acid lysed the cell membrane of N. oryzae, causing the leaking of the mycelial protein and enhancement of the permeability of the cell membrane, which caused the electrical conductivity of the liquid medium to increase. In addition, it also decreased the activities of superoxide dismutase and catalase in the mycelium of N. oryzae, thereby weakening the cell’s protective function by damaging the integrity of the biomembrane. Furthermore, ginkgolic acid can effectively protect the leaves of Epipremnum aureum from infection by N. oryzae. It was concluded that ginkgolic acid effectively inhibited the activity of N. oryzae.
{"title":"Inhibitory action of ginkgolic acid against pathogenic fungi and characterisation of its inhibitory activities on Nigrospora oryzae","authors":"Jing Liu, Jiuliang Chen, Shuhong Ye, Yanl Ding, Shuhang Guo, Ningning Fan","doi":"10.2478/fhort-2023-0004","DOIUrl":"https://doi.org/10.2478/fhort-2023-0004","url":null,"abstract":"ABSTRACT Ginkgolic acid is a natural plant antifungal substance with important biological activities, present in the testa of Ginkgo biloba. This research aims to analyse the antifungal action of ginkgolic acid against pathogenic fungi. Ginkgolic acid was analyzed by HPLC and FTIR, and the in vitro inhibitory activities of ginkgolic acid against pathogenic fungi has been investigated. Results showed that ginkgolic acid was a small hydrophobic molecule composed of five ginkgolic acids and their derivatives, with the alkyl and phenolic hydroxyl groups being located on the skeleton of the aromatic ring. Among Nigrospora oryzae (N. oryzae), Alternaria alternata (A. alternata) and Penicillium expansum (P. expansum), ginkgolic acid showed the strongest inhibition against N. oryzae, and the inhibition rate of ginkgolic acid at 5 mg · mL-1 reached 65.82%. Ginkgolic acid lysed the cell membrane of N. oryzae, causing the leaking of the mycelial protein and enhancement of the permeability of the cell membrane, which caused the electrical conductivity of the liquid medium to increase. In addition, it also decreased the activities of superoxide dismutase and catalase in the mycelium of N. oryzae, thereby weakening the cell’s protective function by damaging the integrity of the biomembrane. Furthermore, ginkgolic acid can effectively protect the leaves of Epipremnum aureum from infection by N. oryzae. It was concluded that ginkgolic acid effectively inhibited the activity of N. oryzae.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45818815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lei Cao, Songming Han, Jinzhu Zhang, Tao Yang, D. Che, Jinping Fan
ABSTRACT Lily pollen causes many problems affecting humans’ quality of life and health, such as clothing contamination and skin or nasal allergies. The manual removal of anthers is time-consuming and labour-intensive, and thus, not conducive to commercial production. It is of great importance to produce pollen-free lily varieties with beautiful shapes. In this study, we studied the morphological characteristics of flower organs and polyploids of six pollen-free filial generations of four lily species and their micropropagations. Lily ‘5-21’ is male sterile and produces uncrackable anthers with inactive pollens under natural conditions. Lily ‘3-12’ is unable to produce anthers, because the petals become stamens, thereby leading to infertility. Lilies ‘3-1’, ‘5-4’, ‘5-35’ and ‘0-0.2’ are unable to produce anthers, because they lack floral organs. Polyploids of six hybrid lilies were identified by flow cytometry and chromosome counting, and the results showed that lily ‘5-4’ was triploid and the rest were diploid. Morphological observation indicated that flowering periods were from early July to early August and lasted for about 11 days. Six male sterile lilies had low seed setting rates when they were used as female parents. Most of the seeds were flaky with developed embryos. Therefore, asexual reproduction is optimal for these six male sterile lilies. The male sterility of six lilies was associated with their parents’ pollen activity. Scales of ‘5-4’ and ‘5-35’ were used as explants for in vitro micropropagation. The findings of the present study lay a foundation for breeding of pollen-free lilies.
{"title":"Morphological characteristics of flower organs and in vitro micropropagation of male sterile lines of Lilium hybrids","authors":"Lei Cao, Songming Han, Jinzhu Zhang, Tao Yang, D. Che, Jinping Fan","doi":"10.2478/fhort-2023-0001","DOIUrl":"https://doi.org/10.2478/fhort-2023-0001","url":null,"abstract":"ABSTRACT Lily pollen causes many problems affecting humans’ quality of life and health, such as clothing contamination and skin or nasal allergies. The manual removal of anthers is time-consuming and labour-intensive, and thus, not conducive to commercial production. It is of great importance to produce pollen-free lily varieties with beautiful shapes. In this study, we studied the morphological characteristics of flower organs and polyploids of six pollen-free filial generations of four lily species and their micropropagations. Lily ‘5-21’ is male sterile and produces uncrackable anthers with inactive pollens under natural conditions. Lily ‘3-12’ is unable to produce anthers, because the petals become stamens, thereby leading to infertility. Lilies ‘3-1’, ‘5-4’, ‘5-35’ and ‘0-0.2’ are unable to produce anthers, because they lack floral organs. Polyploids of six hybrid lilies were identified by flow cytometry and chromosome counting, and the results showed that lily ‘5-4’ was triploid and the rest were diploid. Morphological observation indicated that flowering periods were from early July to early August and lasted for about 11 days. Six male sterile lilies had low seed setting rates when they were used as female parents. Most of the seeds were flaky with developed embryos. Therefore, asexual reproduction is optimal for these six male sterile lilies. The male sterility of six lilies was associated with their parents’ pollen activity. Scales of ‘5-4’ and ‘5-35’ were used as explants for in vitro micropropagation. The findings of the present study lay a foundation for breeding of pollen-free lilies.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41321988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Wiesnerová, T. Hřebečková, I. Jablonský, M. Koudela
ABSTRACT Pleurotus ostreatus is a widely cultivated and investigated mushroom for its economical and ecological values and medicinal properties. P. ostreatus can be cultivated on different lignocellulosic substrates (oak sawdust, wheat straw, corn cobs and many more). Optimal growth is influenced not only by the composition of the substrate but also by the amount of water in it. In our study, P. ostreatus was cultivated on wheat straw pellets with different water contents (60%, 65%, 70% and 75%). Mycelium growth, biological efficiency (BE), moisture of substrate, pH, enzymatic activities and relationships were the parameters that were evaluated. Based on the results, the optimum initial substrate water content for mycelial growth and BE of the substrate ranged between 65% and 75%. On the other hand, the highest enzymatic activities of hydrolytic and ligninolytic enzymes (Mn-dependent peroxidase, 1,4-β-glucosidase and cellobiohydrolase) were determined for substrates with 75% of water content.
{"title":"Effect of different water contents in the substrate on cultivation of Pleurotus ostreatus Jacq. P. Kumm","authors":"L. Wiesnerová, T. Hřebečková, I. Jablonský, M. Koudela","doi":"10.2478/fhort-2023-0002","DOIUrl":"https://doi.org/10.2478/fhort-2023-0002","url":null,"abstract":"ABSTRACT Pleurotus ostreatus is a widely cultivated and investigated mushroom for its economical and ecological values and medicinal properties. P. ostreatus can be cultivated on different lignocellulosic substrates (oak sawdust, wheat straw, corn cobs and many more). Optimal growth is influenced not only by the composition of the substrate but also by the amount of water in it. In our study, P. ostreatus was cultivated on wheat straw pellets with different water contents (60%, 65%, 70% and 75%). Mycelium growth, biological efficiency (BE), moisture of substrate, pH, enzymatic activities and relationships were the parameters that were evaluated. Based on the results, the optimum initial substrate water content for mycelial growth and BE of the substrate ranged between 65% and 75%. On the other hand, the highest enzymatic activities of hydrolytic and ligninolytic enzymes (Mn-dependent peroxidase, 1,4-β-glucosidase and cellobiohydrolase) were determined for substrates with 75% of water content.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47642598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Lakitan, Hana Haruna Putri, Rofiqoh Purnama Ria, Dora Fatma Nurshanti, F. Gustiar, S. Muda, A. Wijaya
Abstract This study aimed to compare cormels and suckers to determine the better planting material (PM) and to evaluate the effects of morphology-altering treatments on both shoot growth and corm yield in taro plants. The PMs used included cormel (PMC), suckers with two leaves (PMS2) and suckers with four leaves (PMS4). Morphological alteration (MA) treatment included removal of all suckers (MAS), excising the mother plant (MAM), and non-treated control (NMA). Data were collected weekly for non-destructive and at 12, 20, and 28 weeks after planting (WAP) for destructive measurements. Results of this study indicated that the SPAD values were higher in taro plants grown using cormel and morphologically non-altered plants. Removal of all suckers caused the mother plant to increase the number of leaves. The dry weight of the leaf blades, petioles and fibrous roots of the mother plant and the number of suckers decreased after the corm enlargement process took place. Fresh and dry weights of the corm increased at 20 WAP and then slowed down at 28 WAP. The moisture content of corm was relatively constant at 75%. Cormel could form on the fibrous roots and on suckers, but the total wet and dry weights of the cormels were decreased if the suckers were periodically removed. The growth of suckers was very dominant compared to the NMA plant when the mother plant was excised. Meanwhile, if all the suckers were removed, the growth of the mother plant was relatively comparable to that of the NMA plants.
{"title":"Growth and yield in taro (Colocasia esculenta (L.) Schott) grown using different planting materials and exposed to different morphological alteration treatments","authors":"B. Lakitan, Hana Haruna Putri, Rofiqoh Purnama Ria, Dora Fatma Nurshanti, F. Gustiar, S. Muda, A. Wijaya","doi":"10.2478/fhort-2022-0018","DOIUrl":"https://doi.org/10.2478/fhort-2022-0018","url":null,"abstract":"Abstract This study aimed to compare cormels and suckers to determine the better planting material (PM) and to evaluate the effects of morphology-altering treatments on both shoot growth and corm yield in taro plants. The PMs used included cormel (PMC), suckers with two leaves (PMS2) and suckers with four leaves (PMS4). Morphological alteration (MA) treatment included removal of all suckers (MAS), excising the mother plant (MAM), and non-treated control (NMA). Data were collected weekly for non-destructive and at 12, 20, and 28 weeks after planting (WAP) for destructive measurements. Results of this study indicated that the SPAD values were higher in taro plants grown using cormel and morphologically non-altered plants. Removal of all suckers caused the mother plant to increase the number of leaves. The dry weight of the leaf blades, petioles and fibrous roots of the mother plant and the number of suckers decreased after the corm enlargement process took place. Fresh and dry weights of the corm increased at 20 WAP and then slowed down at 28 WAP. The moisture content of corm was relatively constant at 75%. Cormel could form on the fibrous roots and on suckers, but the total wet and dry weights of the cormels were decreased if the suckers were periodically removed. The growth of suckers was very dominant compared to the NMA plant when the mother plant was excised. Meanwhile, if all the suckers were removed, the growth of the mother plant was relatively comparable to that of the NMA plants.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46936619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Rao, X. Xiao, Yuan Wang, Yuzhou Xiong, Hua Cheng, Li Li, S. Cheng
Abstract Soybean (Glycine max L.) sprouts are a common vegetable with rich nutrients, such as protein, vitamin C and isoflavones. Soybean is also capable of accumulating selenium (Se). To study the effects of Se biofortification on the nutrient of this crop, soybean sprouts were treated with different concentrations of selenium nanoparticles (SeNPs) or selenite (i.e., 10 μM, 20 μM, 40 μM, 80 μM and 100 μM) in a hydroponic experiment. Results showed that SeNPs and selenite remarkably increased the total Se concentration in soybean sprouts. Five Se speciations, namely, selenocystine, selenomethionine, methyl selenocysteine, selenite and selenate were detected in soybean sprouts, but selenomethionine was found to be the dominant Se speciation. SeNPs and selenite increased the contents of chlorophyll, carotenoid, soluble sugar, soluble protein, vitamin C and isoflavones in soybean sprouts. SeNPs treatments led to less malondialdehyde content compared with selenite. SeNPs and selenite both enhanced the glutathione content. The modest dosage of exogenous Se stimulated the catalase activity, whereas the large amount reduced it. The peroxidase and ascorbate peroxidase activities were stimulated by SeNPs and selenite. SeNPs posed no significant influence on the superoxide dismutase activity. This study suggests that SeNPs are a good exogenous Se source for the production of Se-rich soybean sprouts.
{"title":"Comparative study of the effects of selenium nanoparticles and selenite on selenium content and nutrient quality in soybean sprouts","authors":"S. Rao, X. Xiao, Yuan Wang, Yuzhou Xiong, Hua Cheng, Li Li, S. Cheng","doi":"10.2478/fhort-2022-0017","DOIUrl":"https://doi.org/10.2478/fhort-2022-0017","url":null,"abstract":"Abstract Soybean (Glycine max L.) sprouts are a common vegetable with rich nutrients, such as protein, vitamin C and isoflavones. Soybean is also capable of accumulating selenium (Se). To study the effects of Se biofortification on the nutrient of this crop, soybean sprouts were treated with different concentrations of selenium nanoparticles (SeNPs) or selenite (i.e., 10 μM, 20 μM, 40 μM, 80 μM and 100 μM) in a hydroponic experiment. Results showed that SeNPs and selenite remarkably increased the total Se concentration in soybean sprouts. Five Se speciations, namely, selenocystine, selenomethionine, methyl selenocysteine, selenite and selenate were detected in soybean sprouts, but selenomethionine was found to be the dominant Se speciation. SeNPs and selenite increased the contents of chlorophyll, carotenoid, soluble sugar, soluble protein, vitamin C and isoflavones in soybean sprouts. SeNPs treatments led to less malondialdehyde content compared with selenite. SeNPs and selenite both enhanced the glutathione content. The modest dosage of exogenous Se stimulated the catalase activity, whereas the large amount reduced it. The peroxidase and ascorbate peroxidase activities were stimulated by SeNPs and selenite. SeNPs posed no significant influence on the superoxide dismutase activity. This study suggests that SeNPs are a good exogenous Se source for the production of Se-rich soybean sprouts.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47312832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qinlin Liu, S. Dong, Xiao-li Hu, Yang Yang, Qian Tang, Lina Tan
Abstract Supplying artificial light is widely used in crop cultivation to improve yield and quality. In this study, we investigated the effects of a weak supply of light (WSL) on the growth and quality components of tea plants. Starting from mid-winter (20 January 2021), the purple tea (Camellia sinensis) cultivar ‘Ziyan’ was exposed to four different spectra at an intensity of 2 μmol · m−2 · s−1 or 5 μmol · m−2 · s−1 for 3 h or 5 h after sunset. The field observations showed that the sprouting index, which represents the time and speed of bud flush, was significantly higher in most of the WSL treatments than in the control (CK, p < 0.01). The total content of catechin in the harvested leaves of 3 WSL treatments was 11.51%–18.94% higher than that of the CK, but the content of anthocyanin of 4 WSL treatments unexpectedly decreased by 6.77%–11.69% (p < 0.05). The differences in yield, free amino acids and caffeine contents between the WSL treatments and CK were not significant. We concluded that the WSL treatments during the early spring night had positive impacts on the growth and some quality components of tea plants.
{"title":"Effects of a weak supply of light at night on the growth and quality components of tea plants","authors":"Qinlin Liu, S. Dong, Xiao-li Hu, Yang Yang, Qian Tang, Lina Tan","doi":"10.2478/fhort-2022-0020","DOIUrl":"https://doi.org/10.2478/fhort-2022-0020","url":null,"abstract":"Abstract Supplying artificial light is widely used in crop cultivation to improve yield and quality. In this study, we investigated the effects of a weak supply of light (WSL) on the growth and quality components of tea plants. Starting from mid-winter (20 January 2021), the purple tea (Camellia sinensis) cultivar ‘Ziyan’ was exposed to four different spectra at an intensity of 2 μmol · m−2 · s−1 or 5 μmol · m−2 · s−1 for 3 h or 5 h after sunset. The field observations showed that the sprouting index, which represents the time and speed of bud flush, was significantly higher in most of the WSL treatments than in the control (CK, p < 0.01). The total content of catechin in the harvested leaves of 3 WSL treatments was 11.51%–18.94% higher than that of the CK, but the content of anthocyanin of 4 WSL treatments unexpectedly decreased by 6.77%–11.69% (p < 0.05). The differences in yield, free amino acids and caffeine contents between the WSL treatments and CK were not significant. We concluded that the WSL treatments during the early spring night had positive impacts on the growth and some quality components of tea plants.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47522623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Development of efficient and green methods for extracting bioactive phytochemicals has great industrial value. Increasing environmental sensitivity at the global level has tremendously enhanced the demand for such methods. Azadirachta indica is a well-known medicinal tree. As glycerol has emerged as a green and safe extraction solvent for bioactive phytochemicals, this study aimed to investigate the efficacy of a glycerol–water solvent system to extract bioactive compounds from A. indica leaves. Modelling and optimisation were carried out by using response surface methodology (RSM) as per the Box–Behnken design with three variables, namely, solvent concentration, time and temperature. The responses were total phenolic content (TPC), total flavonoid content (TFC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and metal chelating activity (MCA). The optimum conditions found by numerical optimisation were a solvent concentration of 69.713%, a time period of 38.328 min and a temperature of 32.114 °C with the predicted values of TPC, TFC, %DPPH and %MCA as 5.27 mg gallic acid equivalents · g−1 DW (dry weight), 9.869 mg rutin equivalents · g−1 DW, 73.8% and 54.366%, respectively. The validation experiments showed almost the same results for each response with very low% errors (5.431–7.661). Increasing glycerol concentration in the extracting medium favoured the extraction of TPC, TFC and antioxidant phytochemicals, but for MCA, the trend was the opposite. In conclusion, 70% aqueous glycerol is an effective medium for the extraction of polyphenolic and antioxidant phytochemicals from A. indica leaves. Extraction models suggested by RSM have high prospects to be used on a large industrial scale.
{"title":"Green extraction of bioactive compounds from Azadirachta indica in aqueous glycerol and modelling and optimisation by response surface methodology","authors":"Mahnoor Anis, D. Ahmed, Nida Anis","doi":"10.2478/fhort-2022-0019","DOIUrl":"https://doi.org/10.2478/fhort-2022-0019","url":null,"abstract":"Abstract Development of efficient and green methods for extracting bioactive phytochemicals has great industrial value. Increasing environmental sensitivity at the global level has tremendously enhanced the demand for such methods. Azadirachta indica is a well-known medicinal tree. As glycerol has emerged as a green and safe extraction solvent for bioactive phytochemicals, this study aimed to investigate the efficacy of a glycerol–water solvent system to extract bioactive compounds from A. indica leaves. Modelling and optimisation were carried out by using response surface methodology (RSM) as per the Box–Behnken design with three variables, namely, solvent concentration, time and temperature. The responses were total phenolic content (TPC), total flavonoid content (TFC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and metal chelating activity (MCA). The optimum conditions found by numerical optimisation were a solvent concentration of 69.713%, a time period of 38.328 min and a temperature of 32.114 °C with the predicted values of TPC, TFC, %DPPH and %MCA as 5.27 mg gallic acid equivalents · g−1 DW (dry weight), 9.869 mg rutin equivalents · g−1 DW, 73.8% and 54.366%, respectively. The validation experiments showed almost the same results for each response with very low% errors (5.431–7.661). Increasing glycerol concentration in the extracting medium favoured the extraction of TPC, TFC and antioxidant phytochemicals, but for MCA, the trend was the opposite. In conclusion, 70% aqueous glycerol is an effective medium for the extraction of polyphenolic and antioxidant phytochemicals from A. indica leaves. Extraction models suggested by RSM have high prospects to be used on a large industrial scale.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49069920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anderson R. L. Silva, Í. Cavalcante, M. A. Silva, V. B. P. Paiva Neto, R. A. Amariz, Letícia Y. A. Amorim
Abstract Mango is the most exported fruit of Brazil, especially grown in São Francisco Valley (tropical semiarid) where there is high temperatures and low air humidity, a condition that can cause stress to plants. Thus, the current study aimed to evaluate the effectiveness of different sunblocks to alleviate the abiotic stress of “Palmer” mango trees grown in a semiarid environment. The experimental design consisted of randomised blocks with six treatments, four repetitions and three plants per plot. The treatments consisted of different strategies of sunblocks as follows: (T1) control (no sunblock); (T2) calcium carbonate (50 g · L−1); (T3) sunblock (5 mL · L−1); (T4) sunblock (5 mL · L−1) + calcium carbonate (50 g · L−1); (T5) sunblock (5 mL · L−1) + sunblock silicon concentrated (20 mL · L−1) and (T6) sunblock (20 mL · L−1). The results indicate a clear action of sunblock in attenuating the abiotic stress of mango, with a persistent effect with time elapsing, considering the evaluated interval. The sunblock clearly promotes a differentiated leaf coverage pattern, protecting the photosynthetic apparatus and increasing its performance and consequently improving the production of plant reserves. The use of calcium carbonate individually promotes a very short protective effect, without positive reflexes after a few days of application. Mango fruit yield is affected by the sunblock with an increase of 4.2 t · ha−1 from the treatment with sunblock (20 mL · L−1) in relation to the control treatment.
{"title":"Does the sunblock alleviate abiotic stress in mango trees grown in the tropical semiarid?","authors":"Anderson R. L. Silva, Í. Cavalcante, M. A. Silva, V. B. P. Paiva Neto, R. A. Amariz, Letícia Y. A. Amorim","doi":"10.2478/fhort-2022-0016","DOIUrl":"https://doi.org/10.2478/fhort-2022-0016","url":null,"abstract":"Abstract Mango is the most exported fruit of Brazil, especially grown in São Francisco Valley (tropical semiarid) where there is high temperatures and low air humidity, a condition that can cause stress to plants. Thus, the current study aimed to evaluate the effectiveness of different sunblocks to alleviate the abiotic stress of “Palmer” mango trees grown in a semiarid environment. The experimental design consisted of randomised blocks with six treatments, four repetitions and three plants per plot. The treatments consisted of different strategies of sunblocks as follows: (T1) control (no sunblock); (T2) calcium carbonate (50 g · L−1); (T3) sunblock (5 mL · L−1); (T4) sunblock (5 mL · L−1) + calcium carbonate (50 g · L−1); (T5) sunblock (5 mL · L−1) + sunblock silicon concentrated (20 mL · L−1) and (T6) sunblock (20 mL · L−1). The results indicate a clear action of sunblock in attenuating the abiotic stress of mango, with a persistent effect with time elapsing, considering the evaluated interval. The sunblock clearly promotes a differentiated leaf coverage pattern, protecting the photosynthetic apparatus and increasing its performance and consequently improving the production of plant reserves. The use of calcium carbonate individually promotes a very short protective effect, without positive reflexes after a few days of application. Mango fruit yield is affected by the sunblock with an increase of 4.2 t · ha−1 from the treatment with sunblock (20 mL · L−1) in relation to the control treatment.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45493709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhe Wu, Yahua Yang, Zhaojia Li, Xue-jun Lu, Xiuping Wang
Abstract One of the main purposes for which dandelions are cultivated is to derive phenolic acids from their processing. Phenolic acids, which are one of the main useful compounds in dandelion, constitute one of the important groups of therapeutically significant bioactive compounds in traditional Chinese medicine. To carry out a relatively full evaluation of dandelion quality, it was found advisable to use multiple indices to avoid conflict with the single evaluation index stipulated by China Pharmacopoeia. Thus, a quality evaluation method was created based on traditional Chinese medicinal theory and relevant statistics on phenolic acids. Firstly, four main kinds of phenolic acids – caftaric acid, chlorogenic acid, caffeic acid and cichoric acid – were chosen as the main indices for quality evaluation through the optimisation of high performance liquid chromatography detection conditions and fingerprint comparison analysis; then, the content of each component was divided into five levels based on the descriptive statistics of 578 dandelion samples and references; finally, the equal weight average method was used to convert content levels of the four components into a comprehensive quality index, which served as the means for dandelion quality to be identified and segregated into grades, as follows: Grade 1 (super high, probability of 0.8%), Grade 2 (high, 18.72%), Grade 3 (medium, 37.28%), Grade 4 (qualified, 32%) and Grade 5 (low, 11.2%). This method is the first to comprehensively evaluate dandelion quality for setting an industry standard in China, and has practical and scientific characteristics.
{"title":"Development of dandelion (Taraxacum spp.) quality evaluation technology based on phenolic acids","authors":"Zhe Wu, Yahua Yang, Zhaojia Li, Xue-jun Lu, Xiuping Wang","doi":"10.2478/fhort-2022-0015","DOIUrl":"https://doi.org/10.2478/fhort-2022-0015","url":null,"abstract":"Abstract One of the main purposes for which dandelions are cultivated is to derive phenolic acids from their processing. Phenolic acids, which are one of the main useful compounds in dandelion, constitute one of the important groups of therapeutically significant bioactive compounds in traditional Chinese medicine. To carry out a relatively full evaluation of dandelion quality, it was found advisable to use multiple indices to avoid conflict with the single evaluation index stipulated by China Pharmacopoeia. Thus, a quality evaluation method was created based on traditional Chinese medicinal theory and relevant statistics on phenolic acids. Firstly, four main kinds of phenolic acids – caftaric acid, chlorogenic acid, caffeic acid and cichoric acid – were chosen as the main indices for quality evaluation through the optimisation of high performance liquid chromatography detection conditions and fingerprint comparison analysis; then, the content of each component was divided into five levels based on the descriptive statistics of 578 dandelion samples and references; finally, the equal weight average method was used to convert content levels of the four components into a comprehensive quality index, which served as the means for dandelion quality to be identified and segregated into grades, as follows: Grade 1 (super high, probability of 0.8%), Grade 2 (high, 18.72%), Grade 3 (medium, 37.28%), Grade 4 (qualified, 32%) and Grade 5 (low, 11.2%). This method is the first to comprehensively evaluate dandelion quality for setting an industry standard in China, and has practical and scientific characteristics.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41976915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Yu, Xinxin Li, Shengting Zhao, Shuguang Sun, Yanru Yu, Jinzhi Chen, Xianhao Cheng, Weihuan Li
Abstract The use of waste apple-wood as a source of sawdust to cultivate the mushrooms Pleurotus ostreatus and Lentinula edodes is a common practice, but it is imperative to ensure that the wood does not contain unsafe amounts of heavy-metals or pesticide residues. In this study, we sampled and investigated the pollution of heavy metals and pesticide residues in apple-wood from Yantai, Shandong, China and cultivated P. ostreatus and L. edodes using apple-wood as substrate. Heavy metals, pesticide residues, mineral elements, and biological efficiency were measured. Heavy metals were more commonly detected in the 73 apple-wood samples, but serious pollution was only an isolated phenomenon. No Pb was detected in P. ostreatus and L. edodes. The contents of Hg, As, Cd, and Cr were at safe levels. The contents of Ni were equivalent to those of wild mushrooms. Most notably, chlorpyrifos was detected in all the apple-wood tested. However, chlorpyrifos was only detected in L. edodes cultivated with apple sawdust. No other pesticide residues were detected in the other mushroom samples. The biological efficiency of P. ostreatus cultivated by apple sawdust was 89%, which was 80% of the control. The biological efficiency of L. edodes cultivated with apple sawdust was 81%, which did not differ significantly from the control. Apple-wood can replace wild oak as the material for L. edodes cultivation, but producers should ensure that the raw materials are safe. The main materials chosen to cultivate P. ostreatus should balance the two factors of raw material price and biological efficiency.
{"title":"Waste apple wood: A safe and economical alternative substrate for the cultivation of Pleurotus ostreatus and Lentinula edodes","authors":"G. Yu, Xinxin Li, Shengting Zhao, Shuguang Sun, Yanru Yu, Jinzhi Chen, Xianhao Cheng, Weihuan Li","doi":"10.2478/fhort-2022-0014","DOIUrl":"https://doi.org/10.2478/fhort-2022-0014","url":null,"abstract":"Abstract The use of waste apple-wood as a source of sawdust to cultivate the mushrooms Pleurotus ostreatus and Lentinula edodes is a common practice, but it is imperative to ensure that the wood does not contain unsafe amounts of heavy-metals or pesticide residues. In this study, we sampled and investigated the pollution of heavy metals and pesticide residues in apple-wood from Yantai, Shandong, China and cultivated P. ostreatus and L. edodes using apple-wood as substrate. Heavy metals, pesticide residues, mineral elements, and biological efficiency were measured. Heavy metals were more commonly detected in the 73 apple-wood samples, but serious pollution was only an isolated phenomenon. No Pb was detected in P. ostreatus and L. edodes. The contents of Hg, As, Cd, and Cr were at safe levels. The contents of Ni were equivalent to those of wild mushrooms. Most notably, chlorpyrifos was detected in all the apple-wood tested. However, chlorpyrifos was only detected in L. edodes cultivated with apple sawdust. No other pesticide residues were detected in the other mushroom samples. The biological efficiency of P. ostreatus cultivated by apple sawdust was 89%, which was 80% of the control. The biological efficiency of L. edodes cultivated with apple sawdust was 81%, which did not differ significantly from the control. Apple-wood can replace wild oak as the material for L. edodes cultivation, but producers should ensure that the raw materials are safe. The main materials chosen to cultivate P. ostreatus should balance the two factors of raw material price and biological efficiency.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48006186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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