A. Sheeba, C. T. Selvi, P. Yogameenakshi, M. Bhaskaran, S. Banumathy
Laboratory and field screening were performed in nine rice genotypes i.e., TM 12061, TM 12077, TM 12012, TM 14035, TM 16017, Senthuram, Vandhana, TKM 12 and Anna (R) 4 to assess their drought tolerant potential. For laboratory screening, the effect of different levels of Poly Ethylene Glycol (PEG) concentration viz., -0.2, -0.4, -0.6 and -1.0 MPa on germination, shoot length and root length were studied. There was a considerable decrease in the germination potential among all the genotypes with increase in PEG concentration. The TM 12077 showed higher level of tolerance to PEG induced drought stress showing 30.8 % germination with 3.2 cm and 8.85 cm shoot and root length, respectively at higher level of concentration (1.0 MPa). In the field screening under managed stress condition, TM 12077 and TM 12012 showed higher accumulation of proline (4.15 mg/g). Chlorophyll stability index was more than 80 % in the genotypes TM 12012, TM 12077 and TM 12061. The genotype TM 14035, the varieties Anna (R) 4 and Vandhana matured early in 115 days. Number of tillers per plant, number of panicles/sqm and yield/hectare were maximum in TM 12077. While considering both laboratory and field screening, the genotypes TM 12077, TM 12012 and TM 12061 were found promising for water stress environment and can be utilized as donors in the drought tolerance breeding programs. High heritability coupled with moderate to high GA as per cent of mean recorded for plant height, tillers per plant, chlorophyll stability Index and total chlorophyll content indicates the presence of additive gene effects and their improvement through direct selection. Bangladesh J. Bot. 52(4): 1041-1046, 2023 (December)
{"title":"Impact of water stress on morpho-physiological and biochemical traits in rice genotypes","authors":"A. Sheeba, C. T. Selvi, P. Yogameenakshi, M. Bhaskaran, S. Banumathy","doi":"10.3329/bjb.v52i4.70590","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70590","url":null,"abstract":"Laboratory and field screening were performed in nine rice genotypes i.e., TM 12061, TM 12077, TM 12012, TM 14035, TM 16017, Senthuram, Vandhana, TKM 12 and Anna (R) 4 to assess their drought tolerant potential. For laboratory screening, the effect of different levels of Poly Ethylene Glycol (PEG) concentration viz., -0.2, -0.4, -0.6 and -1.0 MPa on germination, shoot length and root length were studied. There was a considerable decrease in the germination potential among all the genotypes with increase in PEG concentration. The TM 12077 showed higher level of tolerance to PEG induced drought stress showing 30.8 % germination with 3.2 cm and 8.85 cm shoot and root length, respectively at higher level of concentration (1.0 MPa). In the field screening under managed stress condition, TM 12077 and TM 12012 showed higher accumulation of proline (4.15 mg/g). Chlorophyll stability index was more than 80 % in the genotypes TM 12012, TM 12077 and TM 12061. The genotype TM 14035, the varieties Anna (R) 4 and Vandhana matured early in 115 days. Number of tillers per plant, number of panicles/sqm and yield/hectare were maximum in TM 12077. While considering both laboratory and field screening, the genotypes TM 12077, TM 12012 and TM 12061 were found promising for water stress environment and can be utilized as donors in the drought tolerance breeding programs. High heritability coupled with moderate to high GA as per cent of mean recorded for plant height, tillers per plant, chlorophyll stability Index and total chlorophyll content indicates the presence of additive gene effects and their improvement through direct selection. Bangladesh J. Bot. 52(4): 1041-1046, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":" 10","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139135880","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}
Ashiqur Rahman, Tanjina Tarannum, Razia Sultana, S. R. Syeda
Chromium, naturally present in trace amounts in the environment, poses a significant risk as both a carcinogen and a contaminant at elevated concentrations. The study explores the chromium accumulation potential of seven indigenous weeds of Hazaribagh, Bangladesh. It further investigates the threat and toxicity associated with vegetables, crops, and aromatic plant cultivation in chromium-laden soil. The study revealed that the study area contains alarmingly high levels of Cr (III), i.e., 2328–34,536 mg Cr/kg as demonstrated in a spatial GIS map. The weeds accumulated 27.8 – 2496.6 mg Cr/kg and 11.4 –506.9 mg Cr/kg in roots and shoots respectively. Among the seven weeds, Phyllanthus niruri, Cyperus sp., and Vernonia patula met at least one phytoremediation criteria and can be used for soil chromium remediation purposes. In the pot study, five species, Brassica nipus (mustard), Helianthus annuus (sunflower), Ocimum sanctum (holy basil), Capsicum annuum (green chili), and Abelmoschus esculentus (okra), were exposed to chromium (III) sulfate spiked soil for forty days at 100, 500, and 20000 mg Cr/kg soil concentrations. Green chili, sunflower, mustard, and okra demonstrated high chromium uptake in roots (13.3- 195 mg/ kg) and shoots (13.2-63.7 mg/kg) exceeding permissible and toxicity threshold for plants. These findings highlight the importance of not cultivating these species in chromium-contaminated areas. However, basil showed chromium tolerance by limiting the uptake in the shoot along with excellent growth reducing the risk of chromium transferring through the food chain, and therefore, is safe to grow in Hazaribagh for producing metal-free aromatic oil. Bangladesh J. Bot. 52(3): 875-882, 2023 (September)
{"title":"Potent indigenous weeds for soil chromium remediation and public health risk assessment with pot-grown edible plants","authors":"Ashiqur Rahman, Tanjina Tarannum, Razia Sultana, S. R. Syeda","doi":"10.3329/bjb.v52i3.68957","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68957","url":null,"abstract":"Chromium, naturally present in trace amounts in the environment, poses a significant risk as both a carcinogen and a contaminant at elevated concentrations. The study explores the chromium accumulation potential of seven indigenous weeds of Hazaribagh, Bangladesh. It further investigates the threat and toxicity associated with vegetables, crops, and aromatic plant cultivation in chromium-laden soil. The study revealed that the study area contains alarmingly high levels of Cr (III), i.e., 2328–34,536 mg Cr/kg as demonstrated in a spatial GIS map. The weeds accumulated 27.8 – 2496.6 mg Cr/kg and 11.4 –506.9 mg Cr/kg in roots and shoots respectively. Among the seven weeds, Phyllanthus niruri, Cyperus sp., and Vernonia patula met at least one phytoremediation criteria and can be used for soil chromium remediation purposes. In the pot study, five species, Brassica nipus (mustard), Helianthus annuus (sunflower), Ocimum sanctum (holy basil), Capsicum annuum (green chili), and Abelmoschus esculentus (okra), were exposed to chromium (III) sulfate spiked soil for forty days at 100, 500, and 20000 mg Cr/kg soil concentrations. Green chili, sunflower, mustard, and okra demonstrated high chromium uptake in roots (13.3- 195 mg/ kg) and shoots (13.2-63.7 mg/kg) exceeding permissible and toxicity threshold for plants. These findings highlight the importance of not cultivating these species in chromium-contaminated areas. However, basil showed chromium tolerance by limiting the uptake in the shoot along with excellent growth reducing the risk of chromium transferring through the food chain, and therefore, is safe to grow in Hazaribagh for producing metal-free aromatic oil. Bangladesh J. Bot. 52(3): 875-882, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"10 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":"139319871","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}
Ruijin Zhou, Shanyi Jia, Feifei Han, Kaiwei Li, Guirong Li
Annual branches of three grape cultivars, namely ‘Xia Hei’ grape, ‘Eastern Star’ grape and ‘Giant Rose’ grape were first treated with Indole-3-butyric acid (IBA) solution, then inserted in different media and then n their growth performances were studied. The growth performance of the three grape cultivars were: ‘Xia Hei’ > ‘Eastern Star’ > ‘Giant Rose’. Media (M4) was the most conducive to improve the survival per cent of gape rooted cuttings. This study provides a reference for choosing a suitable method to grow rooted cuttings taken from grape annual branches, which would furthermore improve the survival rate of young vines. Bangladesh J. Bot. 52(3): 763-774, 2023 (September)
{"title":"Effects of iba and media on the growth performance of three cultivars of grapes (Vitis Vinifera L.)","authors":"Ruijin Zhou, Shanyi Jia, Feifei Han, Kaiwei Li, Guirong Li","doi":"10.3329/bjb.v52i3.68895","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68895","url":null,"abstract":"Annual branches of three grape cultivars, namely ‘Xia Hei’ grape, ‘Eastern Star’ grape and ‘Giant Rose’ grape were first treated with Indole-3-butyric acid (IBA) solution, then inserted in different media and then n their growth performances were studied. The growth performance of the three grape cultivars were: ‘Xia Hei’ > ‘Eastern Star’ > ‘Giant Rose’. Media (M4) was the most conducive to improve the survival per cent of gape rooted cuttings. This study provides a reference for choosing a suitable method to grow rooted cuttings taken from grape annual branches, which would furthermore improve the survival rate of young vines. Bangladesh J. Bot. 52(3): 763-774, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"19 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320237","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}
Mina Najafi, Cihat Kütük, Solmaz Najafi, Meric Balci
The study was conducted to determine the feasibility of using hazelnut shell waste as a growth medium for German primroses (Primula obconica Hance) under greenhouse conditions. Five different media combinations were prepared using sphagnum moss peat (SMP) and hazelnut husk waste (HHW). Some quality and growth parameters of P. obconica appeared to be significantly different depending on the growth medium. Results showed that HHW had a statistically significant impact on two parameters, namely aesthetic appearance score and mean flower weight, but had no impact on the other qualitative traits. The highest (8.94) and lowest (4.70) esthetic appearance scores were observed at 100% HHW and control treatments, respectively. In addition, the maximum (0.15 g) and minimum (0.097 g) mean flower weights were observed in HHW2 treatment and control plants, respectively. Bangladesh J. Bot. 52(3): 829-835, 2023 (September)
{"title":"Effects of hazelnut husk waste on quality parameters of german primrose (Primula Obconica Hance)","authors":"Mina Najafi, Cihat Kütük, Solmaz Najafi, Meric Balci","doi":"10.3329/bjb.v52i3.68927","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68927","url":null,"abstract":"The study was conducted to determine the feasibility of using hazelnut shell waste as a growth medium for German primroses (Primula obconica Hance) under greenhouse conditions. Five different media combinations were prepared using sphagnum moss peat (SMP) and hazelnut husk waste (HHW). Some quality and growth parameters of P. obconica appeared to be significantly different depending on the growth medium. Results showed that HHW had a statistically significant impact on two parameters, namely aesthetic appearance score and mean flower weight, but had no impact on the other qualitative traits. The highest (8.94) and lowest (4.70) esthetic appearance scores were observed at 100% HHW and control treatments, respectively. In addition, the maximum (0.15 g) and minimum (0.097 g) mean flower weights were observed in HHW2 treatment and control plants, respectively. Bangladesh J. Bot. 52(3): 829-835, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"88 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319858","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}
Grain yield and water use efficiency of wheat cultivars in relation to different sowing environments were evaluated where seven dates of sowing viz. October 22, 29, November 5, 12, 19, 26 and December 3 in the main plots and three varieties namely PBW 725, HD 3086 and HD 2967 in sub-plots'for three consecutive years were considered. Results revealed that wheat crop sown from October 22 to November 5 had better agrometeorological indices, yield attributes, normalized difference vegetative index and higher water use efficiency resulting in higher grain yield than delayed sowing. Wheat varieties PBW 725 and HD 3086 resulted the lower canopy temperature, higher grain yield along with all the yield attributing characters and agrometeorological indices under Northwestern conditions of India. Bangladesh J. Bot. 52(3): 701-707, 2023 (September)
{"title":"Grain yield, heat and water use efficiency of wheat cultivars in relation to different sowing environments","authors":"Maninder Kaur, H. Ram","doi":"10.3329/bjb.v52i3.68878","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68878","url":null,"abstract":"Grain yield and water use efficiency of wheat cultivars in relation to different sowing environments were evaluated where seven dates of sowing viz. October 22, 29, November 5, 12, 19, 26 and December 3 in the main plots and three varieties namely PBW 725, HD 3086 and HD 2967 in sub-plots'for three consecutive years were considered. Results revealed that wheat crop sown from October 22 to November 5 had better agrometeorological indices, yield attributes, normalized difference vegetative index and higher water use efficiency resulting in higher grain yield than delayed sowing. Wheat varieties PBW 725 and HD 3086 resulted the lower canopy temperature, higher grain yield along with all the yield attributing characters and agrometeorological indices under Northwestern conditions of India. Bangladesh J. Bot. 52(3): 701-707, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"27 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320064","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}
Basavaraj Magadum, R. Kanpure, Op Singh, B. Kachouli, J. Bhandari
Effects of pruning intensity and spray of plant growth regulators (PGR) on dfferent parameters of Guava (Psidium Guajava L.) Sardar were investigated. Growth, quality and yield attributing characters were improved at 30 cm pruning intensity. With respect to effect of plant growth regulators, application of 600 ppm NAA improved all the characters except minimum number of days taken to flower initiation (39.47), acidity (0.33 %), TSS (12.11 oBrix) and total sugars (6.79 %) which were recorded in 600 ppm ethephon. The interaction studied showed that P3G2 (30 cm pruning + 600 ppm NAA) had recorded the highest value with growth, yield and quality, while the combination of P3G3 (30 cm pruning + 600 ppm ethephon) was good for qualitative parameters. Bangladesh J. Bot. 52(3): 813-820, 2023 (September)
{"title":"Effects of pruning intensity and plant growth regulators on growth, yield and quality of guava (Psidium Guajava L.) CV. Sardar","authors":"Basavaraj Magadum, R. Kanpure, Op Singh, B. Kachouli, J. Bhandari","doi":"10.3329/bjb.v52i3.68923","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68923","url":null,"abstract":"Effects of pruning intensity and spray of plant growth regulators (PGR) on dfferent parameters of Guava (Psidium Guajava L.) Sardar were investigated. Growth, quality and yield attributing characters were improved at 30 cm pruning intensity. With respect to effect of plant growth regulators, application of 600 ppm NAA improved all the characters except minimum number of days taken to flower initiation (39.47), acidity (0.33 %), TSS (12.11 oBrix) and total sugars (6.79 %) which were recorded in 600 ppm ethephon. The interaction studied showed that P3G2 (30 cm pruning + 600 ppm NAA) had recorded the highest value with growth, yield and quality, while the combination of P3G3 (30 cm pruning + 600 ppm ethephon) was good for qualitative parameters. Bangladesh J. Bot. 52(3): 813-820, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"64 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320172","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 cadmium (Cd) and iron (Fe) on growth of Atir and Negev varieties of wheat in solution culture experiment was investigated. Based on Geochem-PC model, four different combinations of pCd (-log free Cd +2 activity) such as (0, 7.9, 8.2 and 8.5) and two levels of pFe (-log free Fe+2 activity) such as (17.0 and 17.6) were formulated as experimental treatments. Shoot dry matter yield of wheat cultivars viz. Atir and Negev were reduced to 80 and 74% at 7.9 pCd level. Atir was the most sensitive genotype for the rate of phytometallophore (PM) release. Alterations in superoxide dismutase (SOD) and peroxidase (POD) enzyme activities were initiated from lower pCd level for both the varieties. Bangladesh J. Bot. 52(3): 755-761, 2023 (September)
{"title":"Growth and enzyme activity of wheat under varying levels of cadmium and iron","authors":"Tapan Adhikari","doi":"10.3329/bjb.v52i3.68894","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68894","url":null,"abstract":"Effects of cadmium (Cd) and iron (Fe) on growth of Atir and Negev varieties of wheat in solution culture experiment was investigated. Based on Geochem-PC model, four different combinations of pCd (-log free Cd +2 activity) such as (0, 7.9, 8.2 and 8.5) and two levels of pFe (-log free Fe+2 activity) such as (17.0 and 17.6) were formulated as experimental treatments. Shoot dry matter yield of wheat cultivars viz. Atir and Negev were reduced to 80 and 74% at 7.9 pCd level. Atir was the most sensitive genotype for the rate of phytometallophore (PM) release. Alterations in superoxide dismutase (SOD) and peroxidase (POD) enzyme activities were initiated from lower pCd level for both the varieties. Bangladesh J. Bot. 52(3): 755-761, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"21 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319881","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}
Leaf rust caused by Puccinia triticinia is the most destructive disease which reduces wheat production. Thirty-eight wheat varieties were screened for four leaf rust resistance genes viz. Lr10, Lr26, Lr34 and Lr47 through STS markers. Among them Lr10 gene showed its presence in 16 genotypes, Lr26 in 8, both Lr34 and Lr47 in 10 each. Variety Anza+2ns showed promising results by the presence of three Lr genes (Lr10, Lr26 and Lr47) surely recommended for crop improvement and/or direct utility at farmers field. Chakwal-97, Indus-79, Marwat-Y-01, Mumal-2002, Khyber-83, Pasban-90, Pari-73, Lr-268, and Satluge-86 showed 2 genes presence while 23 with single gene and 5 without any response. A diagnostic band of size 310, 258, 1000 and 380-450 bps was amplified showing presence of Lr10, Lr34, Lr26 and Lr47. Marker STS are suggested for large scale germplasm screening during marker assisted breeding. Bangladesh J. Bot. 52(3): 709-714, 2023 (September)
{"title":"Identification of leaf rust genes in wheat varieties through sts markers","authors":"M. S. Iqbal, Wesal Ahmad, M. Akbar, Inamullah","doi":"10.3329/bjb.v52i3.68881","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68881","url":null,"abstract":"Leaf rust caused by Puccinia triticinia is the most destructive disease which reduces wheat production. Thirty-eight wheat varieties were screened for four leaf rust resistance genes viz. Lr10, Lr26, Lr34 and Lr47 through STS markers. Among them Lr10 gene showed its presence in 16 genotypes, Lr26 in 8, both Lr34 and Lr47 in 10 each. Variety Anza+2ns showed promising results by the presence of three Lr genes (Lr10, Lr26 and Lr47) surely recommended for crop improvement and/or direct utility at farmers field. Chakwal-97, Indus-79, Marwat-Y-01, Mumal-2002, Khyber-83, Pasban-90, Pari-73, Lr-268, and Satluge-86 showed 2 genes presence while 23 with single gene and 5 without any response. A diagnostic band of size 310, 258, 1000 and 380-450 bps was amplified showing presence of Lr10, Lr34, Lr26 and Lr47. Marker STS are suggested for large scale germplasm screening during marker assisted breeding. Bangladesh J. Bot. 52(3): 709-714, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"9 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319967","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}
Serkan Özmen, S. Tabur, Siğnem Öney Birol, K. Çavuşoğlu
Impacts of the exogenously applied polyamines (PAs) on some physiological features and proline content in drought-resistant barley cultivars (Hordeum vulgare cv. Bülbül-89) and drought-susceptible (Hordeum vulgare cv. Burakbey) were comparatively examined under PEG-6000-simulated drought stress conditions. It was found that drought stress application had adverse impact on all physiological parameters at least 40% compared to that of the control group. It also dramatically increase the proline content of the cultivars. However, exogenously applied PAs (especially Spm on both barley cultivars) under drought stress conditions showed positive effect on all physiological parameters studied. The proline content increased in the presence of all PAs (especially Spd) in drought-susceptible Burakbey cultivar. If in Bülbül-89, polyamine that increases the proline content was Spd only. Among polyamines Cad was found as the polyamine that provided generally the least successful on all parameters. Bangladesh J. Bot. 52(3): 805-812, 2023 (September)
{"title":"Impacts of polyamines on the morpho-physiological characters and proline content of the two different barley cultivars","authors":"Serkan Özmen, S. Tabur, Siğnem Öney Birol, K. Çavuşoğlu","doi":"10.3329/bjb.v52i3.68920","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68920","url":null,"abstract":"Impacts of the exogenously applied polyamines (PAs) on some physiological features and proline content in drought-resistant barley cultivars (Hordeum vulgare cv. Bülbül-89) and drought-susceptible (Hordeum vulgare cv. Burakbey) were comparatively examined under PEG-6000-simulated drought stress conditions. It was found that drought stress application had adverse impact on all physiological parameters at least 40% compared to that of the control group. It also dramatically increase the proline content of the cultivars. However, exogenously applied PAs (especially Spm on both barley cultivars) under drought stress conditions showed positive effect on all physiological parameters studied. The proline content increased in the presence of all PAs (especially Spd) in drought-susceptible Burakbey cultivar. If in Bülbül-89, polyamine that increases the proline content was Spd only. Among polyamines Cad was found as the polyamine that provided generally the least successful on all parameters. Bangladesh J. Bot. 52(3): 805-812, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"21 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320093","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 effects of different plant growth regulator combinations on leaf callus growth in two Rosa hybrida cultivars, Rosa hybrida ‘Ingrid Bergman’ and Rosa hybrida ‘Xindongfang’, were analyzed. The plant growth regulators were added into MS, MS + 2,4-D (1.5 mg/l, 2.5 mg/l, 3.5 mg/L, and 4.5 mg/l) and MS + 2.0 mg/l NAA + 1.0 mg/l ZT, MS + 2.0 mg/l NAA + 1.0 mg/l KT, MS + 2.0 mg/l NAA + 1.0 mg/l 6-BA and MS + 2.0 mg/l NAA. The leaves were treated as broken and cultured on these nine different media types. Results showed significant differences in color, morphology, and callus quantity. In the first medium, the callus of rose leaves was the best on MS + 4.5 mg/l 2,4-D medium, followed by MS + 2.5 mg/l 2,4-D and MS + 3.5 mg/l 2,4-D, and finally MS + 1.5 mg/l 2,4-D. No callus was found in MS medium. In the second kind of medium, the leaves grow callus, and the callus grew best on MS + 2.0 mg/l NAA + 1.0 mg/l ZT medium, followed by MS + 2.0 mg/l NAA + 1.0 mg/l KT, finally MS + 2.0 mg/l NAA + 1.0 mg/l 6-BA, MS + 2.0 mg/l NAA medium, the callus grew loose and dry, and lost luster after a few days. Therefore, 2,4-D, KT, ZT, 6-BA, and NAA can promote the formation of callus. With the increase of concentration of 2,4-D, the callus induction rate increased, and the color of the callus also changed significantly. The combination of KT, ZT, and NAA had an obvious effect on callus induction and expansion. Bangladesh J. Bot. 52(3): 867-873, 2023 (September)
{"title":"Effects of plant growth regulators on the callus of rose leaves","authors":"Yanpu Liu, Ge Li","doi":"10.3329/bjb.v52i3.68994","DOIUrl":"https://doi.org/10.3329/bjb.v52i3.68994","url":null,"abstract":"In the present study effects of different plant growth regulator combinations on leaf callus growth in two Rosa hybrida cultivars, Rosa hybrida ‘Ingrid Bergman’ and Rosa hybrida ‘Xindongfang’, were analyzed. The plant growth regulators were added into MS, MS + 2,4-D (1.5 mg/l, 2.5 mg/l, 3.5 mg/L, and 4.5 mg/l) and MS + 2.0 mg/l NAA + 1.0 mg/l ZT, MS + 2.0 mg/l NAA + 1.0 mg/l KT, MS + 2.0 mg/l NAA + 1.0 mg/l 6-BA and MS + 2.0 mg/l NAA. The leaves were treated as broken and cultured on these nine different media types. Results showed significant differences in color, morphology, and callus quantity. In the first medium, the callus of rose leaves was the best on MS + 4.5 mg/l 2,4-D medium, followed by MS + 2.5 mg/l 2,4-D and MS + 3.5 mg/l 2,4-D, and finally MS + 1.5 mg/l 2,4-D. No callus was found in MS medium. In the second kind of medium, the leaves grow callus, and the callus grew best on MS + 2.0 mg/l NAA + 1.0 mg/l ZT medium, followed by MS + 2.0 mg/l NAA + 1.0 mg/l KT, finally MS + 2.0 mg/l NAA + 1.0 mg/l 6-BA, MS + 2.0 mg/l NAA medium, the callus grew loose and dry, and lost luster after a few days. Therefore, 2,4-D, KT, ZT, 6-BA, and NAA can promote the formation of callus. With the increase of concentration of 2,4-D, the callus induction rate increased, and the color of the callus also changed significantly. The combination of KT, ZT, and NAA had an obvious effect on callus induction and expansion. Bangladesh J. Bot. 52(3): 867-873, 2023 (September)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"49 5","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320105","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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