Pub Date : 2023-01-01DOI: 10.1590/01047760202329013193
Jéssica Thalheimer de Aguiar, Flávia Gizele König Brun, Pedro Higuchi, Rogério Bobrowski
.
{"title":"Although it lacks connectivity, isolated urban forest fragments can deliver similar amounts of ecosystem services as in protected areas","authors":"Jéssica Thalheimer de Aguiar, Flávia Gizele König Brun, Pedro Higuchi, Rogério Bobrowski","doi":"10.1590/01047760202329013193","DOIUrl":"https://doi.org/10.1590/01047760202329013193","url":null,"abstract":".","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135314381","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}
Pub Date : 2023-01-01DOI: 10.1590/01047760202329013229
Luciana Aparecida Rodrigues, José Olívio Lopes Vieira Júnior, Marco Antônio Martins
Background: Clay extraction sites result from mining activities they present sterile, compacted and low-nutrient soils. They have been housing eucalypts crops for wood production. Their management, together with green manure inoculated with symbiont microorganisms, can increase the efficiency of nutrient uptake and reduce the need for chemical fertilization. The aim of the present study is to assess the growth and uptake of macronutrients by Eucalyptus grandis seedlings grown in substrate from clay extraction sites, based on intercropping system farming, with green manure inoculated with rhizobia and/or arbuscular mycorrhizal fungi (AMFs). The experiment followed a completely randomized design, with three repetitions, and the following treatments: cultivation of eucalypt (no intercropping) inoculated, or not, with AMFs; eucalypt intercropping system with Canavalia ensiformis Lam. or Canavalia brasiliensis Mart ex Benth., inoculated, or not, with AMF´s and/or rhizobia. Isolates of the symbiont microorganism were collected from spontaneous plants grown in clay extraction-site soils. Eucalypt seedlings and green manure were grown, together, in 6 L pots filled with substrate from clay extraction sites. Green manure shoot was cut 45 days after cultivation and eucalypt was harvested 60 days after it. Results: Inoculation with AMF´s+ rhizobia reduced the C:N ratio and increased N and P acquisition by C. ensiformis. Conclusions: Inoculation of native AMFs from the clay extraction site was effective in boosting the growth and nutrient acquisition of eucalypt plants grown in this substrate, in cultivation intercropped, or not, with C. ensiformis or C. brasiliensis. It also reduced visible symptoms of nutritional deficiency. Ca, Mg and K concentration in eucalypt plants was not changed by green manure cultivation or by inoculation with AMFs or rhizobia.
背景:粘土提取地点是采矿活动的结果，它们呈现出无菌、压实和低营养的土壤。他们一直在种植桉树作物，用于木材生产。它们的管理与接种了共生微生物的绿肥一起，可以提高养分吸收效率，减少对化学施肥的需求。本研究的目的是评估大桉树幼苗在粘土提取场地的基质上生长和吸收大量营养物质，基于间作制度耕作，绿肥接种根瘤菌和/或丛枝菌根真菌(AMFs)。试验采用完全随机设计，重复3次，采用以下处理:桉树种植(不间作)接种或不接种AMFs;桉树与菜花间作系统。或Canavalia brasiliensis Mart ex Benth。是否接种AMF和/或根瘤菌。从粘土提取现场土壤中生长的自然植物中分离出了共生微生物。桉树幼苗和绿肥一起生长在6升的罐子里，罐子里装满了从粘土提取处提取的基质。绿肥苗在栽培后45天采伐，桉树在栽培后60天采收。结果:接种AMF +根瘤菌降低了C:N比，增加了弓形梭菌对氮磷的获取。结论:从粘土提取部位接种本地AMFs，可有效促进生长在该基质上的桉树植物的生长和营养获取，无论是否与剑形橡胶树或巴西橡胶树间作。它还减轻了营养缺乏的明显症状。绿肥栽培或接种AMFs或根瘤菌对桉树体内Ca、Mg和K浓度没有影响。
{"title":"Mycorrhizas obtained from by clay extraction and green manure effect on the growth and nutrition of eucalypts grown in mining area substrate","authors":"Luciana Aparecida Rodrigues, José Olívio Lopes Vieira Júnior, Marco Antônio Martins","doi":"10.1590/01047760202329013229","DOIUrl":"https://doi.org/10.1590/01047760202329013229","url":null,"abstract":"Background: Clay extraction sites result from mining activities they present sterile, compacted and low-nutrient soils. They have been housing eucalypts crops for wood production. Their management, together with green manure inoculated with symbiont microorganisms, can increase the efficiency of nutrient uptake and reduce the need for chemical fertilization. The aim of the present study is to assess the growth and uptake of macronutrients by Eucalyptus grandis seedlings grown in substrate from clay extraction sites, based on intercropping system farming, with green manure inoculated with rhizobia and/or arbuscular mycorrhizal fungi (AMFs). The experiment followed a completely randomized design, with three repetitions, and the following treatments: cultivation of eucalypt (no intercropping) inoculated, or not, with AMFs; eucalypt intercropping system with Canavalia ensiformis Lam. or Canavalia brasiliensis Mart ex Benth., inoculated, or not, with AMF´s and/or rhizobia. Isolates of the symbiont microorganism were collected from spontaneous plants grown in clay extraction-site soils. Eucalypt seedlings and green manure were grown, together, in 6 L pots filled with substrate from clay extraction sites. Green manure shoot was cut 45 days after cultivation and eucalypt was harvested 60 days after it. Results: Inoculation with AMF´s+ rhizobia reduced the C:N ratio and increased N and P acquisition by C. ensiformis. Conclusions: Inoculation of native AMFs from the clay extraction site was effective in boosting the growth and nutrient acquisition of eucalypt plants grown in this substrate, in cultivation intercropped, or not, with C. ensiformis or C. brasiliensis. It also reduced visible symptoms of nutritional deficiency. Ca, Mg and K concentration in eucalypt plants was not changed by green manure cultivation or by inoculation with AMFs or rhizobia.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135260823","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}
Pub Date : 2023-01-01DOI: 10.1590/01047760202329013228
Taher Abdulai Alttaher Ateya, Oguzhan Yavuz Bayraktar, Ismail Koc
Background: Heavy metal contamination in the air has been gaining importance from scientists due to increasing industrial activities, population growth, and density in urban areas causing many crucial environmental pollution problems. Heavy metals do not quickly disappear and do not decay in nature; they accumulate in plant organs and indirectly affect human and environmental health. On the other hand, some elements are essential for plant growth, but some have poisonous or carcinogenic consequences, even at small concentrations. Thus, determining and observing heavy metal concentrations in the atmosphere is crucial., Plants are the utmost important indicator of heavy metal concentration changes in the air and are called biomonitors. The current study aims to determine the variation in some elements (K, P, Fe, Zn, Cu, Cd, and Cr) concentration inPicea pungensEngelm. (valued for its bluish or silvery-gray foliage) grown in the Ankara city center (capital of Türkiye and second crowded city), based on the plant needles and the age of the branch. Thus, this study tried to determine the potential of using needle leaves and branches ofP. pungens as a biomonitor to determine some heavy metal concentrations. Results: The heavy metal concentrations significantly differed by organ and organ age. The element levels were higher in the branches in some years and the needles in some years. Conclusions: This result indicates that Picea pungens needles and branches are suitable for observing studied heavy metal concentrations. Using branches and needles does not also harm the plant species.
{"title":"Do Picea pungens engelm. organs be a suitable biomonitor of urban atmosphere pollution?","authors":"Taher Abdulai Alttaher Ateya, Oguzhan Yavuz Bayraktar, Ismail Koc","doi":"10.1590/01047760202329013228","DOIUrl":"https://doi.org/10.1590/01047760202329013228","url":null,"abstract":"Background: Heavy metal contamination in the air has been gaining importance from scientists due to increasing industrial activities, population growth, and density in urban areas causing many crucial environmental pollution problems. Heavy metals do not quickly disappear and do not decay in nature; they accumulate in plant organs and indirectly affect human and environmental health. On the other hand, some elements are essential for plant growth, but some have poisonous or carcinogenic consequences, even at small concentrations. Thus, determining and observing heavy metal concentrations in the atmosphere is crucial., Plants are the utmost important indicator of heavy metal concentration changes in the air and are called biomonitors. The current study aims to determine the variation in some elements (K, P, Fe, Zn, Cu, Cd, and Cr) concentration inPicea pungensEngelm. (valued for its bluish or silvery-gray foliage) grown in the Ankara city center (capital of Türkiye and second crowded city), based on the plant needles and the age of the branch. Thus, this study tried to determine the potential of using needle leaves and branches ofP. pungens as a biomonitor to determine some heavy metal concentrations. Results: The heavy metal concentrations significantly differed by organ and organ age. The element levels were higher in the branches in some years and the needles in some years. Conclusions: This result indicates that Picea pungens needles and branches are suitable for observing studied heavy metal concentrations. Using branches and needles does not also harm the plant species.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261458","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}
Pub Date : 2023-01-01DOI: 10.1590/01047760202329013259
Lina Zhang, Hepeng Qu, Kun Liu, Yandi Wang
Background: With the reduction of global forest resources and the intensification of environmental problems, it is particularly important to seek new solutions for forest resource management. This paper proposes a forest resource management system based on blockchain technology to realize data security sharing and traceability of forest ownership. Through drone on-site verification and blockchain technology, management credibility and efficiency are improved and costs are reduced. The system provides innovative solutions in terms of data credibility, cooperation mechanism, intelligent decision-making, sustainable development, etc., and defines the future development direction.
{"title":"Forest resource management system based on blockchain","authors":"Lina Zhang, Hepeng Qu, Kun Liu, Yandi Wang","doi":"10.1590/01047760202329013259","DOIUrl":"https://doi.org/10.1590/01047760202329013259","url":null,"abstract":"Background: With the reduction of global forest resources and the intensification of environmental problems, it is particularly important to seek new solutions for forest resource management. This paper proposes a forest resource management system based on blockchain technology to realize data security sharing and traceability of forest ownership. Through drone on-site verification and blockchain technology, management credibility and efficiency are improved and costs are reduced. The system provides innovative solutions in terms of data credibility, cooperation mechanism, intelligent decision-making, sustainable development, etc., and defines the future development direction.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261926","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}
Pub Date : 2023-01-01DOI: 10.1590/01047760202329013147
Faujiah Nurhasanah Ritonga, Song Chen, Fitri Indriani, Runxian Song, Xiang Zhang, Xingguo Lan, Su Chen
Background: Betula platyphylla Sukaczev is one of important tree species due to its ecological and economic value. It is a cold-tolerant tree species which also faces heat stress during summer. In the current study, RNA-Seq profiling of two-month-old B. platyphylla seedlings were conducted utilizing the MGISEQ-2000 platform. Results: In total, 856,347,961 clean reads were obtained from 26 RNA-Seq libraries. Totally, 822,552,820 reads were successfully mapped to B. platyphylla reference genome. Further, a total of 360 and 264 DEGs were discovered under cold and heat exposure, respectively, while a total of 104 DEGs were identified under both cold and heat exposure. It was found that several pathways including response to cold, response to heat, response to temperature stimulus, response to stress, lipid metabolic, jamonic acid and ethylene, even developmental processes were significantly enriched in GO enrichment analysis of cold and heat stress in biological process term. Several transcription factors (TFs), including MYB66, CBF2, bHLH96and bZIP7 take a pivotal role in response to temperature stresses. Furthermore, heat shock proteins were identified under cold and heat stress, respectively, suggesting these genes participate in reducing cold and heat stress detrimental effect by interacting with TFs or other genes related to abiotic stresses, chlorophyll and photosynthesis, osmoprotectants, and phytohormone as well. Conclusion: This study not only underlying B. platyphylla’ s molecular mechanism in response to temperature stresses but also provides candidate genes involved in response to temperature stresses.
{"title":"Comparative RNA-Seq analysis of Betula platyphylla under low and high temperature stresses","authors":"Faujiah Nurhasanah Ritonga, Song Chen, Fitri Indriani, Runxian Song, Xiang Zhang, Xingguo Lan, Su Chen","doi":"10.1590/01047760202329013147","DOIUrl":"https://doi.org/10.1590/01047760202329013147","url":null,"abstract":"Background: Betula platyphylla Sukaczev is one of important tree species due to its ecological and economic value. It is a cold-tolerant tree species which also faces heat stress during summer. In the current study, RNA-Seq profiling of two-month-old B. platyphylla seedlings were conducted utilizing the MGISEQ-2000 platform. Results: In total, 856,347,961 clean reads were obtained from 26 RNA-Seq libraries. Totally, 822,552,820 reads were successfully mapped to B. platyphylla reference genome. Further, a total of 360 and 264 DEGs were discovered under cold and heat exposure, respectively, while a total of 104 DEGs were identified under both cold and heat exposure. It was found that several pathways including response to cold, response to heat, response to temperature stimulus, response to stress, lipid metabolic, jamonic acid and ethylene, even developmental processes were significantly enriched in GO enrichment analysis of cold and heat stress in biological process term. Several transcription factors (TFs), including MYB66, CBF2, bHLH96and bZIP7 take a pivotal role in response to temperature stresses. Furthermore, heat shock proteins were identified under cold and heat stress, respectively, suggesting these genes participate in reducing cold and heat stress detrimental effect by interacting with TFs or other genes related to abiotic stresses, chlorophyll and photosynthesis, osmoprotectants, and phytohormone as well. Conclusion: This study not only underlying B. platyphylla’ s molecular mechanism in response to temperature stresses but also provides candidate genes involved in response to temperature stresses.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135316886","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}
Pub Date : 2023-01-01DOI: 10.1590/01047760202329013189
Carlos Mario Galván-Cisneros, Luis Roberto Sánchez Montaño, Andrey Enrique Ojeda-Rodríguez, João Augusto Alves Meira-Neto
Background: Tropical Dry Forests (TDFs) are repositories of biodiversity, ecosystem services and carbon that are threatened by fragmentation and climate change. Floristic and phytosociological studies are fundamental database for many studies of conservation and sustainability, but there is a knowledge gap concerning TDFs, especially in the Andes valleys. The aim of this study was to determine the phytosociological structure and composition of woody vegetation of seven TDFs in the Colombian Andes, and because the flora associated with this type of forest has a geographical distribution restricted to each locality where this biome exists, provide information on the main species, genera and families for conservation and restoration actions as well as for future meta-analyses. We sampled seven TDFs with 20 plots of 25 m × 4 m. Results: In the 1.88 hectares of samples, 8422 individuals were surveyed, distributed in 170 species, 120 genera and 50 botanical families. Of these species, 78.82% were identified at the species level, 17.05% at the genus level, and 4.11% at the family level. The most important families were Fabaceae and Myrtaceae. Nitrogen-fixing Fabaceae species were prominent amongst the important species, especially in low altitude and more stressing sites. Conclusion: The structure, composition and ecological importance of these forests must be considered for conservation and ecological restoration plans, in particular the habitat preference of species along the topographic gradient. Particularly noteworthy for conservation are the Myrtaceae species because promote connectivity and regeneration by providing resources for the fauna, a driver of dispersal, as well as nitrogen-fixing Fabaceae species, because promote the resilience and natural regeneration of TDFs in the Andes, a key feature of stability.
背景:热带干林(tdf)是生物多样性、生态系统服务和碳的储存库，受到破碎化和气候变化的威胁。植物区系学和植物社会学研究是许多保护和可持续性研究的基础数据库，但关于tdf的知识还存在空白，特别是在安第斯山谷。本研究的目的是确定哥伦比亚安第斯山脉7个tdf森林的木本植被的植物社会学结构和组成，并且由于与该类型森林相关的植物群的地理分布仅限于该生物群系存在的每个地方，因此为保护和恢复行动以及未来的meta分析提供了主要物种，属和科的信息。我们选取了7个tdf，共20个地块，面积为25 m × 4 m。结果:在1.88公顷的样本中，共调查到个体8422只，分布于50科120属170种。其中78.82%在种水平，17.05%在属水平，4.11%在科水平。最重要的科是豆科和桃金娘科。固氮型豆科植物在重要物种中占有突出地位，特别是在低海拔和高胁迫地区。结论:森林的结构、组成和生态重要性必须考虑到保护和生态恢复计划，特别是物种沿地形梯度的栖息地偏好。尤其值得注意的是金桃科物种，因为它们通过为动物群提供资源来促进连通性和再生，这是扩散的驱动因素;还有固氮的豆科物种，因为它们促进了安第斯山脉TDFs的恢复力和自然再生，这是稳定性的一个关键特征。
{"title":"Structures of tropical dry forests in the Andes: forest conservation, composition and the role of fabaceae and myrtaceae","authors":"Carlos Mario Galván-Cisneros, Luis Roberto Sánchez Montaño, Andrey Enrique Ojeda-Rodríguez, João Augusto Alves Meira-Neto","doi":"10.1590/01047760202329013189","DOIUrl":"https://doi.org/10.1590/01047760202329013189","url":null,"abstract":"Background: Tropical Dry Forests (TDFs) are repositories of biodiversity, ecosystem services and carbon that are threatened by fragmentation and climate change. Floristic and phytosociological studies are fundamental database for many studies of conservation and sustainability, but there is a knowledge gap concerning TDFs, especially in the Andes valleys. The aim of this study was to determine the phytosociological structure and composition of woody vegetation of seven TDFs in the Colombian Andes, and because the flora associated with this type of forest has a geographical distribution restricted to each locality where this biome exists, provide information on the main species, genera and families for conservation and restoration actions as well as for future meta-analyses. We sampled seven TDFs with 20 plots of 25 m × 4 m. Results: In the 1.88 hectares of samples, 8422 individuals were surveyed, distributed in 170 species, 120 genera and 50 botanical families. Of these species, 78.82% were identified at the species level, 17.05% at the genus level, and 4.11% at the family level. The most important families were Fabaceae and Myrtaceae. Nitrogen-fixing Fabaceae species were prominent amongst the important species, especially in low altitude and more stressing sites. Conclusion: The structure, composition and ecological importance of these forests must be considered for conservation and ecological restoration plans, in particular the habitat preference of species along the topographic gradient. Particularly noteworthy for conservation are the Myrtaceae species because promote connectivity and regeneration by providing resources for the fauna, a driver of dispersal, as well as nitrogen-fixing Fabaceae species, because promote the resilience and natural regeneration of TDFs in the Andes, a key feature of stability.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261255","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}
Pub Date : 2022-01-01DOI: 10.1590/01047760202228012977
A. C. Fernandes, O. Tonetti, A. José, J. Faria
Background: The germination ecology of P. guajava seeds collected in two regions of Brazil was investigated aiming to (1) characterize the seed batches; (2) determine the best temperature for germination; and (3) assess variations in seed desiccation tolerance (DT). For each batch, we determined seed water content and initial germination. To evaluate temperature effects, we tested seed germination. After, we generated the imbibition curves for the two provenance. To evaluate the loss of DT, the seeds were left to germinate along different time intervals. We monitored water loss by regularly weighing the seeds until achieving stabilization, keeping them under these conditions for 72 hours. After drying, the seeds were pre-hydrated and submitted to the germination test. Results: We identified variations in physiological characteristics between the seeds from north and southeast batches. At the temperature extremes, the seeds from both provenance failed to germinate. The highest germination percentages were observed at 20 and 25 °C (constant) and between 20-30 °C (alternating) for the two batches and, for the southeast batch specifically, at 30 °C. The imbibition curve displayed a triphasic pattern with a rapid increase in seed fresh weight in the first 48 hours. Conclusion: The southeast provenance seeds lost DT abruptly, until its complete loss after radicle protrusion, which occurred in both batches. The highest values of germination speed index (GSI) of both provenance were observed after a 9-day imbibition period, suggesting seed hydration memory. Drying resulted in necrosis of the root tissue and death of the seeds with visible roots.
{"title":"Desiccation Tolerance and germination of Psidium guajava seeds from different regions of Brazil","authors":"A. C. Fernandes, O. Tonetti, A. José, J. Faria","doi":"10.1590/01047760202228012977","DOIUrl":"https://doi.org/10.1590/01047760202228012977","url":null,"abstract":"Background: The germination ecology of P. guajava seeds collected in two regions of Brazil was investigated aiming to (1) characterize the seed batches; (2) determine the best temperature for germination; and (3) assess variations in seed desiccation tolerance (DT). For each batch, we determined seed water content and initial germination. To evaluate temperature effects, we tested seed germination. After, we generated the imbibition curves for the two provenance. To evaluate the loss of DT, the seeds were left to germinate along different time intervals. We monitored water loss by regularly weighing the seeds until achieving stabilization, keeping them under these conditions for 72 hours. After drying, the seeds were pre-hydrated and submitted to the germination test. Results: We identified variations in physiological characteristics between the seeds from north and southeast batches. At the temperature extremes, the seeds from both provenance failed to germinate. The highest germination percentages were observed at 20 and 25 °C (constant) and between 20-30 °C (alternating) for the two batches and, for the southeast batch specifically, at 30 °C. The imbibition curve displayed a triphasic pattern with a rapid increase in seed fresh weight in the first 48 hours. Conclusion: The southeast provenance seeds lost DT abruptly, until its complete loss after radicle protrusion, which occurred in both batches. The highest values of germination speed index (GSI) of both provenance were observed after a 9-day imbibition period, suggesting seed hydration memory. Drying resulted in necrosis of the root tissue and death of the seeds with visible roots.","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67155006","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}
Pub Date : 2022-01-01DOI: 10.1590/01047760202228012985
Lidiane Costa Lima, L. R. Costa, A. Carvalho, M. L. Bianchi, Hein Paulo Ricardo Gherardi
{"title":"Near infrared spectroscopy for estimating properties of kraft paper reinforced with cellulose nanofibrils","authors":"Lidiane Costa Lima, L. R. Costa, A. Carvalho, M. L. Bianchi, Hein Paulo Ricardo Gherardi","doi":"10.1590/01047760202228012985","DOIUrl":"https://doi.org/10.1590/01047760202228012985","url":null,"abstract":"","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"378 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67155508","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}
Pub Date : 2022-01-01DOI: 10.1590/01047760202228013008
S. Xin, S. B. Mahardika, Lichun Jiang
{"title":"Stand-level biomass estimation for Korean pine plantations based on four additive methods in Heilongjiang province, northeast China","authors":"S. Xin, S. B. Mahardika, Lichun Jiang","doi":"10.1590/01047760202228013008","DOIUrl":"https://doi.org/10.1590/01047760202228013008","url":null,"abstract":"","PeriodicalId":50705,"journal":{"name":"Cerne","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67155531","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}
Pub Date : 2022-01-01DOI: 10.1590/01047760202228013101
K. Özkan, S. Gülsoy, A. Mert, A. Şenol
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