In the present study fermentation quality, microbial populations and nutritive value of wheat and some cool season annual legume (forage pea, grass pea and vetch) mixed silages (25:75, 50:50 and 75:25) using various commercial bacterial inoculants (Pioneer 1188, Pioneer 11A44 and Pioneer 11CFT) were determined. Wheat and legume species were sown in separate plots and these plants were harvested when wheat reached the dough stage about 180 days after plant emergence. The present study was conducted in a factorial (3 legume species×3 inoculants×5 mixtures) arrangement design. Results showed that effects of legume species on ADF, crude ash, pH, lactic acid bacteria, enterobacteria, yeast and mold, lactic acid, acetic acid, propionic acid, butyric acid and ammonia nitrogen were significant (P < 0.05). Crude protein, silage fermentation features and microbial populations were affected (P<0.05) by inoculants. Effects of mixture ratios on dry matter, chemical compositions, relative feed value, fermentation parameters of silages were significant (P < 0.05). It was determined that ensiling the 50 % wheat with 50% grass pea with the use of inoculant 1188 as an additive could give a good result both in terms of nutritive value and fermentation quality. Bangladesh J. Bot. 52(3): 775-782, 2023 (September)
{"title":"Effects of commercial bacterial inoculants on fermentation and nutritive quality of wheat and annual legume mixed silages","authors":"I. Ertekin","doi":"10.3329/bjb.v52i3.68896","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68896","url":null,"abstract":"In the present study fermentation quality, microbial populations and nutritive value of wheat and some cool season annual legume (forage pea, grass pea and vetch) mixed silages (25:75, 50:50 and 75:25) using various commercial bacterial inoculants (Pioneer 1188, Pioneer 11A44 and Pioneer 11CFT) were determined. Wheat and legume species were sown in separate plots and these plants were harvested when wheat reached the dough stage about 180 days after plant emergence. The present study was conducted in a factorial (3 legume species×3 inoculants×5 mixtures) arrangement design. Results showed that effects of legume species on ADF, crude ash, pH, lactic acid bacteria, enterobacteria, yeast and mold, lactic acid, acetic acid, propionic acid, butyric acid and ammonia nitrogen were significant (P < 0.05). Crude protein, silage fermentation features and microbial populations were affected (P<0.05) by inoculants. Effects of mixture ratios on dry matter, chemical compositions, relative feed value, fermentation parameters of silages were significant (P < 0.05). It was determined that ensiling the 50 % wheat with 50% grass pea with the use of inoculant 1188 as an additive could give a good result both in terms of nutritive value and fermentation quality. Bangladesh J. Bot. 52(3): 775-782, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"47 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AMMI stability values along with adaptability measures MASV and MASV1 identified HB14-15, HB14-40, HB14-16 genotypes. Relative Performance of Genotypic Values (RPGV) measure had settled for HB14.32, HB14-18, HB14-14 genotypes. Superiority indexes allowed variable weights to yield and stability measures considered HB14.32, HB14-18, HB14-20 as of genotypes with high yield and stable performance. Highly significant variations due to environments (64.2%), GxE(11.4%) and genotypes (9.1%) were observed in AMMI analysis of Faba bean genotypes Hisar under field trials from rabi 2013-14 to rabi 2018-19. Biplot analysis had observed a cluster of RPGV, MHRPGV, along with the superiority measures as per arithmetic, geometric and harmonic means of yield values. Association analysis observed the stability measures W1, W2 and WAAS maintained direct relationship with AMMI based measures. Superiority indexes exhibited positive strong correlation with Sdev, PRVG and MHPRVG measures. Bangladesh J. Bot. 52(3): 723-730, 2023 (September)
{"title":"Superiority indices as per ammi analysis to assess stability of faba bean (Vicia Faba L.) Genotypes","authors":"Rajesh Kumar Arya, Gs Dahiya, Ajay Verma, Vandana","doi":"10.3329/bjb.v52i3.68887","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68887","url":null,"abstract":"AMMI stability values along with adaptability measures MASV and MASV1 identified HB14-15, HB14-40, HB14-16 genotypes. Relative Performance of Genotypic Values (RPGV) measure had settled for HB14.32, HB14-18, HB14-14 genotypes. Superiority indexes allowed variable weights to yield and stability measures considered HB14.32, HB14-18, HB14-20 as of genotypes with high yield and stable performance. Highly significant variations due to environments (64.2%), GxE(11.4%) and genotypes (9.1%) were observed in AMMI analysis of Faba bean genotypes Hisar under field trials from rabi 2013-14 to rabi 2018-19. Biplot analysis had observed a cluster of RPGV, MHRPGV, along with the superiority measures as per arithmetic, geometric and harmonic means of yield values. Association analysis observed the stability measures W1, W2 and WAAS maintained direct relationship with AMMI based measures. Superiority indexes exhibited positive strong correlation with Sdev, PRVG and MHPRVG measures. Bangladesh J. Bot. 52(3): 723-730, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"6 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abiotic stress tolerant germplasms of field crops are useful for cultivation under growth limiting conditions. In the present study 18 different rice germplasms for their cell membrane injury (CMI), cell membrane stability (CMS), ATPase activity and their relevance to seed germination and seedling growth tolerance index (TI) under abiotic stresses like salinity and low Ψw were investigated. At least 12 germplasms had relatively low membrane injury (< 10%) and consequently high membrane stability (> 90) including TM-1-5, Sadachikon, SR x P 5222, BR 23, Pokkali, Nonabokra, etc. indicating a relationship between stress tolerance and CMS. ATPase activities in some of these rice germplasms were high along with CMS related to stress tolerance. The TI of seed germinations and seedling growth of different germplasms under salinity stress were affected in different degrees and decreased more under high intensities. At 0.l Molal NaCl all germplasms had ≤ 80% TI of seed germination, at 0.2 Molal NaCl only three had ≥ 80% TI and ten had ≥ 50% TI and at 0.3 Molal NaC1, only nine had ~10-32% TI and the rest nine did not germinate. Osmoticum PEG-6000 at -5.5 bar Ψw had limited inhibitory effect on seed germination TI. NaCl as well as PEG-6000 degraded both the root and shoot growth TI of the seedlings. Bangladesh J. Bot. 52(3): 889-896, 2023 (September)
耐受非生物胁迫的大田作物种质可用于生长受限条件下的栽培。本研究调查了 18 种不同水稻种质的细胞膜损伤（CMI）、细胞膜稳定性（CMS）、ATPase 活性及其与种子萌发和幼苗生长耐受指数（TI）在盐度和低Ψw 等非生物胁迫条件下的相关性。至少有 12 个种质具有相对较低的膜损伤（< 10%）和较高的膜稳定性（> 90），包括 TM-1-5、Sadachikon、SR x P 5222、BR 23、Pokkali、Nonabokra 等，这表明胁迫耐受性与 CMS 之间存在关系。其中一些水稻品种的 ATP 酶活性较高，这与抗逆性和 CMS 有关。在盐分胁迫下，不同种质的种子发芽率和幼苗生长受到不同程度的影响，在高胁迫下，种子发芽率和幼苗生长受到的影响更大。在 0.l Molal NaCl 条件下，所有种质的种子萌发 TI 均不超过 80%；在 0.2 Molal NaCl 条件下，只有 3 个种质的种子萌发 TI ≥ 80%，10 个种质的种子萌发 TI ≥ 50%；在 0.3 Molal NaC1 条件下，只有 9 个种质的种子萌发 TI 约为 10-32%，其余 9 个种质没有萌发。在 -5.5 bar Ψw 条件下，渗透压 PEG-6000 对种子萌发 TI 的抑制作用有限。NaCl 和 PEG-6000 会降低幼苗根部和芽部的生长 TI。孟加拉国植物学报52(3):889-896, 2023 (September)
{"title":"Cell membrane injury, stability and atpase actibity and their relevance to seed germination, seedling growth tolerance indices of rice under abiotic stresses","authors":"Anm Alamgir","doi":"10.3329/bjb.v52i3.68959","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68959","url":null,"abstract":"Abiotic stress tolerant germplasms of field crops are useful for cultivation under growth limiting conditions. In the present study 18 different rice germplasms for their cell membrane injury (CMI), cell membrane stability (CMS), ATPase activity and their relevance to seed germination and seedling growth tolerance index (TI) under abiotic stresses like salinity and low Ψw were investigated. At least 12 germplasms had relatively low membrane injury (< 10%) and consequently high membrane stability (> 90) including TM-1-5, Sadachikon, SR x P 5222, BR 23, Pokkali, Nonabokra, etc. indicating a relationship between stress tolerance and CMS. ATPase activities in some of these rice germplasms were high along with CMS related to stress tolerance. The TI of seed germinations and seedling growth of different germplasms under salinity stress were affected in different degrees and decreased more under high intensities. At 0.l Molal NaCl all germplasms had ≤ 80% TI of seed germination, at 0.2 Molal NaCl only three had ≥ 80% TI and ten had ≥ 50% TI and at 0.3 Molal NaC1, only nine had ~10-32% TI and the rest nine did not germinate. Osmoticum PEG-6000 at -5.5 bar Ψw had limited inhibitory effect on seed germination TI. NaCl as well as PEG-6000 degraded both the root and shoot growth TI of the seedlings. Bangladesh J. Bot. 52(3): 889-896, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"25 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the present study the essential oil components of the flowers and leaves of Amanus sage Pholomis longifolia var. longifolia boiss. & Bl by ultrasonic extraction and steam distillation method were determined. According to the chemical composition analysis of Amanus Sage plant using ultrasonic extraction method, major components were methyl-7-octadecenoate (69.02%) and methyl elaidate (16.87%). The essential oil contents of flowers and leaves of the Amanus sage plant were also determined by steam distillation method. When the essential oil components of the flower were examined, the main components were found to be tricosane (22.39%), caryophyllene (22.17%), alpha-cubebene (14.4305), beta-farnesene (7.7%) and linalool (4.69%). On the other hand the main components in the the leaves were caryophyllene oxide (27.20%), fenchone (18.63%), 1,8-cineole (6.12%), camphor (4.82%), and alpha-cubebene (4.11%). Bioactive properties of the components of Amanus sage obtained from both the ultrasonic extraction and steam distillation methods showed that this plant has important medicinal and aromatic properties. Bangladesh J. Bot. 52(2): 799-803, 2023 (September)
{"title":"Chemical components in the essential oils and ultrasonic extraction of amanus sage pholomis longifolia var. Longifolia boiss. & bl","authors":"Hasan Asi̇l","doi":"10.3329/bjb.v52i3.68899","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68899","url":null,"abstract":"In the present study the essential oil components of the flowers and leaves of Amanus sage Pholomis longifolia var. longifolia boiss. & Bl by ultrasonic extraction and steam distillation method were determined. According to the chemical composition analysis of Amanus Sage plant using ultrasonic extraction method, major components were methyl-7-octadecenoate (69.02%) and methyl elaidate (16.87%). The essential oil contents of flowers and leaves of the Amanus sage plant were also determined by steam distillation method. When the essential oil components of the flower were examined, the main components were found to be tricosane (22.39%), caryophyllene (22.17%), alpha-cubebene (14.4305), beta-farnesene (7.7%) and linalool (4.69%). On the other hand the main components in the the leaves were caryophyllene oxide (27.20%), fenchone (18.63%), 1,8-cineole (6.12%), camphor (4.82%), and alpha-cubebene (4.11%). Bioactive properties of the components of Amanus sage obtained from both the ultrasonic extraction and steam distillation methods showed that this plant has important medicinal and aromatic properties. Bangladesh J. Bot. 52(2): 799-803, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"47 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A field experiment was conducted to investigate the effect of NAA (both as foliar and seed soaking) in combination with different N-levels on growth and yield performance of BARI Gom-25 in two sowing time (November 15 and November 22). The experiment consisted of nine treatments viz. control, F4, SOF0, SOF1, SOF2, SOF3, SOF4, SSF0 and SSF1. Results revealed that seed soaking with 10 ppm NAA in combination with 75% recommended dose nitrogen (RDN) produced tallest plants and maximum number of tillers, leaves, total dry matter per plant with significant variations in majority of case in both the sowing time. In case of November 15 sown wheat, seed soaking with 10 ppm NAA in combination with 75% RDN treatment resulted maximum number of effective tillers per plant (6.67), longest spike (9.75), highest dry weight of spike (16.54 cm), highest number of grains per plant (198.08) and maximum yield per plant (7.75 g). Maximum yield per plant obtained from this best performed treatment was 24.80 and 19.81% higher over 10 ppm NAA in combination with RDN and RDN treatment alone, respectively. Findings showed that seed soaking treatment was more effective than foliar spray treatment and wheat sown on November 15 produced better stimulation than sown on November 22 in majority of case. Out of nine treatments, seed soaking with 10 ppm NAA in combination with 75% RDN resulted higher growth and maximum yield in BARI Gom-25. Bangladesh J. Bot. 52(3): 853-860, 2023 (September)
{"title":"Growth and yield performance of wheat (Triticum Aestivum L.) As influenced by combined application of naa and n-fertilizer in two sowing time","authors":"A. G. Adam, N. Jahan, Parveen Rashid","doi":"10.3329/bjb.v52i3.68944","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68944","url":null,"abstract":"A field experiment was conducted to investigate the effect of NAA (both as foliar and seed soaking) in combination with different N-levels on growth and yield performance of BARI Gom-25 in two sowing time (November 15 and November 22). The experiment consisted of nine treatments viz. control, F4, SOF0, SOF1, SOF2, SOF3, SOF4, SSF0 and SSF1. Results revealed that seed soaking with 10 ppm NAA in combination with 75% recommended dose nitrogen (RDN) produced tallest plants and maximum number of tillers, leaves, total dry matter per plant with significant variations in majority of case in both the sowing time. In case of November 15 sown wheat, seed soaking with 10 ppm NAA in combination with 75% RDN treatment resulted maximum number of effective tillers per plant (6.67), longest spike (9.75), highest dry weight of spike (16.54 cm), highest number of grains per plant (198.08) and maximum yield per plant (7.75 g). Maximum yield per plant obtained from this best performed treatment was 24.80 and 19.81% higher over 10 ppm NAA in combination with RDN and RDN treatment alone, respectively. Findings showed that seed soaking treatment was more effective than foliar spray treatment and wheat sown on November 15 produced better stimulation than sown on November 22 in majority of case. Out of nine treatments, seed soaking with 10 ppm NAA in combination with 75% RDN resulted higher growth and maximum yield in BARI Gom-25. Bangladesh J. Bot. 52(3): 853-860, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"81 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Funing Ma, Xingmeng Wang, Bin Wu, Yi Xu, Dongmei Huang, Ge Chen, Liu Yang, Shun Song, Wenting Xing
Flavanone 3-hydroxylase (F3H) plays a crucial role in the biosynthesis of flavonoids. In the present study, one F3H gene (P_edulia040010337.g) from Passiflora edulis Sims, which has a coding sequence (CDS) of 1161 bp, encoding a protein consisting of 386 amino acid residues was cloned. The PeF3H protein contains a non-heme dioxygenase (DIOX-N superfamily) domain and a typical F3H protein functional domain (2OG-FeII-Oxy dioxygenase). Phylogenetic analysis revealed that the PeF3H protein shared high similarity with F3H proteins in Turnera subulata, Populus alba, and Populus tomentosa, with 88% identities of amino acid sequences. The PeF3H protein lacks a transmembrane structure, indicating it is likely to be expressed in the mitochondria. Additionally, 3D structure, protein and protein interaction, and KEGG pathway of PeF3H were anticipated based on homologous proteins. qRT-PCR analysis showed that PeF3H was highly expressed in leaves, followed by stems and roots. These studies have provided insights into the molecular mechanisms underlying flavonoid biosynthesis and predicted potential targets for genetic engineering to improve the nutritional and medicinal properties of passion fruit. Bangladesh J. Bot. 52(2): 613-623, 2023 (June) Special
{"title":"Molecular cloning and functional analysis of flavanone 3-hydroxylase (f3h）gene in Passiflora edulis Sims","authors":"Funing Ma, Xingmeng Wang, Bin Wu, Yi Xu, Dongmei Huang, Ge Chen, Liu Yang, Shun Song, Wenting Xing","doi":"10.3329/bjb.v52i2.68297","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68297","url":null,"abstract":"Flavanone 3-hydroxylase (F3H) plays a crucial role in the biosynthesis of flavonoids. In the present study, one F3H gene (P_edulia040010337.g) from Passiflora edulis Sims, which has a coding sequence (CDS) of 1161 bp, encoding a protein consisting of 386 amino acid residues was cloned. The PeF3H protein contains a non-heme dioxygenase (DIOX-N superfamily) domain and a typical F3H protein functional domain (2OG-FeII-Oxy dioxygenase). Phylogenetic analysis revealed that the PeF3H protein shared high similarity with F3H proteins in Turnera subulata, Populus alba, and Populus tomentosa, with 88% identities of amino acid sequences. The PeF3H protein lacks a transmembrane structure, indicating it is likely to be expressed in the mitochondria. Additionally, 3D structure, protein and protein interaction, and KEGG pathway of PeF3H were anticipated based on homologous proteins. qRT-PCR analysis showed that PeF3H was highly expressed in leaves, followed by stems and roots. These studies have provided insights into the molecular mechanisms underlying flavonoid biosynthesis and predicted potential targets for genetic engineering to improve the nutritional and medicinal properties of passion fruit. Bangladesh J. Bot. 52(2): 613-623, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135831045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-31DOI: 10.3329/bjb.v52i20.68297
Funing Ma, Xingmeng Wang, Bin Wu, Yi Xu, Dongmei Huang, Ge Chen, Liu Yang, Shun Song, Wenting Xing
Flavanone 3-hydroxylase (F3H) plays a crucial role in the biosynthesis of flavonoids. In the present study, one F3H gene (P_edulia040010337.g) from Passiflora edulis Sims, which has a coding sequence (CDS) of 1161 bp, encoding a protein consisting of 386 amino acid residues was cloned. The PeF3H protein contains a non-heme dioxygenase (DIOX-N superfamily) domain and a typical F3H protein functional domain (2OG-FeII-Oxy dioxygenase). Phylogenetic analysis revealed that the PeF3H protein shared high similarity with F3H proteins in Turnera subulata, Populus alba, and Populus tomentosa, with 88% identities of amino acid sequences. The PeF3H protein lacks a transmembrane structure, indicating it is likely to be expressed in the mitochondria. Additionally, 3D structure, protein and protein interaction, and KEGG pathway of PeF3H were anticipated based on homologous proteins. qRT-PCR analysis showed that PeF3H was highly expressed in leaves, followed by stems and roots. These studies have provided insights into the molecular mechanisms underlying flavonoid biosynthesis and predicted potential targets for genetic engineering to improve the nutritional and medicinal properties of passion fruit. Bangladesh J. Bot. 52(2): 613-623, 2023 (June) Special
{"title":"Molecular cloning and functional analysis of flavanone 3-hydroxylase (f3h）gene in Passiflora edulis Sims","authors":"Funing Ma, Xingmeng Wang, Bin Wu, Yi Xu, Dongmei Huang, Ge Chen, Liu Yang, Shun Song, Wenting Xing","doi":"10.3329/bjb.v52i20.68297","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68297","url":null,"abstract":"Flavanone 3-hydroxylase (F3H) plays a crucial role in the biosynthesis of flavonoids. In the present study, one F3H gene (P_edulia040010337.g) from Passiflora edulis Sims, which has a coding sequence (CDS) of 1161 bp, encoding a protein consisting of 386 amino acid residues was cloned. The PeF3H protein contains a non-heme dioxygenase (DIOX-N superfamily) domain and a typical F3H protein functional domain (2OG-FeII-Oxy dioxygenase). Phylogenetic analysis revealed that the PeF3H protein shared high similarity with F3H proteins in Turnera subulata, Populus alba, and Populus tomentosa, with 88% identities of amino acid sequences. The PeF3H protein lacks a transmembrane structure, indicating it is likely to be expressed in the mitochondria. Additionally, 3D structure, protein and protein interaction, and KEGG pathway of PeF3H were anticipated based on homologous proteins. qRT-PCR analysis showed that PeF3H was highly expressed in leaves, followed by stems and roots. These studies have provided insights into the molecular mechanisms underlying flavonoid biosynthesis and predicted potential targets for genetic engineering to improve the nutritional and medicinal properties of passion fruit. Bangladesh J. Bot. 52(2): 613-623, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-31DOI: 10.3329/bjb.v52i20.68277
Tao Wang
In the present study, Hanzhong City was taken as an example, and the classification of soil heavy metal pollution risks was performed based on the evaluation of soil fertility status with soil physical and chemical properties as the main indicators. Results showed that the coefficients of variation of soil physical and chemical indicators in the study area were in the descending order: the soil fertility status showed a trend of increasing with decreasing terrain and increasing rivers. The high fertility areas were mainly distributed in the northwest and northeast of the plain area, while the low fertility areas were mainly distributed in the southeastern hilly and mountainous areas and in the western low-lying areas, and the transitional areas surrounded the low-fertility areas. At least 88.89% of the Cd samples and 98.61% of the Cr samples out of the eight heavy metals, Cd, Hg, As, Pb, Cr, Ni, Cu, and Zn, belonged to the priority protection class, while 11.11% of the Cd samples and 1.39% of the Cr samples belonged to the safe use class. The overall distribution of soil quality was similar to that of soil fertility status, while the distribution range of low-quality soil in the southeastern part was smaller and more concentrated. The above research results indicate that the introduction of the classification results of soil pollution risk control types generally reduces the soil fertility status correction and changes the spatial distribution pattern of the original soil fertility status to some extent. Bangladesh J. Bot. 52(2): 659-669, 2023 (June) Special
{"title":"Assessment of soil quality in hanzhong city based on risk management of heavy metal pollution","authors":"Tao Wang","doi":"10.3329/bjb.v52i20.68277","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68277","url":null,"abstract":"In the present study, Hanzhong City was taken as an example, and the classification of soil heavy metal pollution risks was performed based on the evaluation of soil fertility status with soil physical and chemical properties as the main indicators. Results showed that the coefficients of variation of soil physical and chemical indicators in the study area were in the descending order: the soil fertility status showed a trend of increasing with decreasing terrain and increasing rivers. The high fertility areas were mainly distributed in the northwest and northeast of the plain area, while the low fertility areas were mainly distributed in the southeastern hilly and mountainous areas and in the western low-lying areas, and the transitional areas surrounded the low-fertility areas. At least 88.89% of the Cd samples and 98.61% of the Cr samples out of the eight heavy metals, Cd, Hg, As, Pb, Cr, Ni, Cu, and Zn, belonged to the priority protection class, while 11.11% of the Cd samples and 1.39% of the Cr samples belonged to the safe use class. The overall distribution of soil quality was similar to that of soil fertility status, while the distribution range of low-quality soil in the southeastern part was smaller and more concentrated. The above research results indicate that the introduction of the classification results of soil pollution risk control types generally reduces the soil fertility status correction and changes the spatial distribution pattern of the original soil fertility status to some extent. Bangladesh J. Bot. 52(2): 659-669, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-31DOI: 10.3329/bjb.v52i20.68196
None Jing He, None Yanan Li
Use of humic acid has great significance to improve soil quality and crop yield in loess hilly and gully areas. In the present study, potassium humate (PH) and potassium fulvic acid (PFA) were used as soil amendments in gully the control project area of Yan'an City, Shaanxi Province. A pot culture experiment was conducted to evaluate the influence of two types of humic acid (PH and PFA) on the growth characteristics of ryegrass in the loess hilly and gully area. Results showed that application of potassium humate and potassium fulvic acid considerably increased the chlorophyll synthesis as well as root length of ryegrass. When the proportion of PH and PFA was the same, the effect of PFA was to be found better than that of PFH. When the proportion of potassium humate was 15g/kg soil, the leaf chlorophyll content and root length attained the maximum, and the soil maturity effect was the best. Bangladesh J. Bot. 52(2): 467-472, 2023 (June) Special
{"title":"Effects of humic acid on chlorophyll content and root length of ryegrass (lolium multiflorum lam.)","authors":"None Jing He, None Yanan Li","doi":"10.3329/bjb.v52i20.68196","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68196","url":null,"abstract":"Use of humic acid has great significance to improve soil quality and crop yield in loess hilly and gully areas. In the present study, potassium humate (PH) and potassium fulvic acid (PFA) were used as soil amendments in gully the control project area of Yan'an City, Shaanxi Province. A pot culture experiment was conducted to evaluate the influence of two types of humic acid (PH and PFA) on the growth characteristics of ryegrass in the loess hilly and gully area. Results showed that application of potassium humate and potassium fulvic acid considerably increased the chlorophyll synthesis as well as root length of ryegrass. When the proportion of PH and PFA was the same, the effect of PFA was to be found better than that of PFH. When the proportion of potassium humate was 15g/kg soil, the leaf chlorophyll content and root length attained the maximum, and the soil maturity effect was the best. Bangladesh J. Bot. 52(2): 467-472, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Effects of brassinolide on the physiological characteristics of maize under salt stress were investigated. Effect of exogenous application of brassinolide on the antioxidant system, endogenous hormone levels, sodium and potassium ion contents of the plants were measured in a salt-tolerant maize cultivar, Xianyu 335, and a salt-sensitive maize cultivar, Dongnong 253. Brassinolide induced better alleviation of physiological damage in different salt-sensitive maize cultivars under salt stress treatment. Exogenous administration of brassinolide was found to increase the antioxidant enzyme activity, modulate the endogenous hormone levels, and promote potassium and sodium excretion by the plants. The effect was more significant in salt-sensitive maize cultivars. Bangladesh J. Bot. 52(2): 551-558, 2023 (June) Special
{"title":"Effects of brassinolide on the physiological characteristics of maize (Zea Mays L.) Cultivars Under salt stress.","authors":"Biao Ji, J. Li, Yina Xia, Zan Li","doi":"10.3329/bjb.v52i2.68220","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68220","url":null,"abstract":"Effects of brassinolide on the physiological characteristics of maize under salt stress were investigated. Effect of exogenous application of brassinolide on the antioxidant system, endogenous hormone levels, sodium and potassium ion contents of the plants were measured in a salt-tolerant maize cultivar, Xianyu 335, and a salt-sensitive maize cultivar, Dongnong 253. Brassinolide induced better alleviation of physiological damage in different salt-sensitive maize cultivars under salt stress treatment. Exogenous administration of brassinolide was found to increase the antioxidant enzyme activity, modulate the endogenous hormone levels, and promote potassium and sodium excretion by the plants. The effect was more significant in salt-sensitive maize cultivars.\u0000Bangladesh J. Bot. 52(2): 551-558, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42925782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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