IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013103

Batin Mehmet Yer, O. E. Sakici

引用次数: 1

Modeling Diameter Distributions of Mixed-Oak Stands In Northwestern Turkey 土耳其西北部混合栎树林分直径分布模型

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/0104776020222801102991

R. Özçelik, Q. V. Cao, Emine Kurnaz, Burak Koparan

引用次数: 2

Generalized height-diameter models with random effects for natural forests of central Mexico 墨西哥中部天然林具有随机效应的广义高度-直径模型

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013033

E. A. R. Camacho, Sacramento Corral Rivas, J. Hernández, Álvaro Agustín Chávez Durán, Jaqueline Xelhuantzi Carmona, J. Nagel

引用次数: 0

Influence of the addition of microcrystalline cellulose (Mcc) on structural properties of cellulose nanofibrils (NFC) suspensions and films 微晶纤维素(Mcc)的加入对纳米纤维素(NFC)悬浮液和薄膜结构性能的影响

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013077

Carmen Fuenmayor, D. A. Silva, U. Klock, E. C. Lengowski, A. S. D. Andrade, E. A. Bonfatti Júnior, L. R. Santos

引用次数: 0

Surface Wettability Of Boron And Oil-Treated Wood 硼和油处理木材的表面润湿性

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013058

E. D. Tomak

{"title":"Surface Wettability Of Boron And Oil-Treated Wood","authors":"E. D. Tomak","doi":"10.1590/01047760202228013058","DOIUrl":"https://doi.org/10.1590/01047760202228013058","url":null,"abstract":"Background: Nowadays, demands for more environmentally friendly and cost-effective preservatives are increasing, and new non-traditional procedures are being explored in wood protection field. Plant oils improve the dimensional stability, water repellency and equilibrium moisture content of wood, and protect wood against decay fungi by means of its hydrophobic properties. The aim of this study is to investigate the influence of heat treatment and oil impregnation with or without prior treatment with boron compounds on wetting characteristic of Scots pine (Pinus sylvestris L.) and beech (Fagus orientalis L.) wood. Wood specimens were impregnated with boric acid, borax and agricultural boron at concentrations of 1%, 2% and 5% followed by oil heat treated with waste and sunflower oil at 160ºC. Wettability was measured by contact angle with the sessile drop technique using water. Results: Water contact angles on oil treated specimens increased while wetting tension decreased, and the wood more poorly wetted by water compared to the controls. A change in the drop volume on the surface of double treated specimens was around 5% based on the initial drop volume. Waste oil treatment resulted in having the greatest water repellent efficiency. High loadings of boron compounds decreased the contact angle and therefore the quantity of water absorbed by the wood increased. Conclusion: Wettability was decreased in specimens pretreated with boron and this confirmed that the hydrophobic surface was created by oil. Wettability is a prerequisite for good adhesion, coating and painting and this feature may be reduced by the less hydrophilic surfaces created after oil heat treatment.","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":"67156716","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}

引用次数: 3

The influence of effective microorganisms on physiological characteristics of containerized taurus cedar ( Cedrus libani A. Rich.) seedlings 有效微生物对集装箱雪松幼苗生理特性的影响

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013018

S. Ayan, E. Çalışkan, H. Özel, E. Çelik, Ergin Yılmaz, Orhan Gülseven, Ş. Akın

{"title":"The influence of effective microorganisms on physiological characteristics of containerized taurus cedar ( Cedrus libani A. Rich.) seedlings","authors":"S. Ayan, E. Çalışkan, H. Özel, E. Çelik, Ergin Yılmaz, Orhan Gülseven, Ş. Akın","doi":"10.1590/01047760202228013018","DOIUrl":"https://doi.org/10.1590/01047760202228013018","url":null,"abstract":"Background: In this study, the impact of Effective Microorganism (EM) applications on some physiological characteristics of 2+0 aged, containerized Taurus cedar (Cedrus libani A.Rich.) seedlings were investigated. EM-1, EM-A, EM-5, and EM-Gold were used as effective microorganism varieties. EM application was repeated twice at two different times. The first application was carried out in April-May 2017 at the beginning of the vegetation period, and the second application was carried out in June-July, when the growth of seedlings was the most active period, according to a randomized plot design with three replications. Results: Physiological measurements on seedlings were carried out at the end of the second vegetation period. According to the results of the study, it was determined that the EM type, dose and application time factors had a significant effect on physiological characteristics such as Chlorophyll a, Chlorophyll b, Total Chlorophyll, Photosynthesis Rate, Transpiration and Relative Humidity. EM-A had a positive effect on photosynthesis rate and EM-5 had a positive effect on all other measured physiological parameters. High dose of EMs had the most positive effect on relative humidity, while medium dose of EMs had the most positive effect on chlorophyll values, transpiration rate and photosynthesis rate. In addition, it was determined that EM application at the beginning of the vegetation period had an increasing effect on all measured physiological parameter values. Conclusion: According to the results of the study, it was concluded that EMs have a positive effect on the physiological quality characteristics of Taurus cedar seedlings and can contribute to the production of seedlings with higher adaptability in afforestation.","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":"67155758","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}

引用次数: 0

Does the faxinal system help to maintain the genetic diversity of Curitiba prismatica (D.Legrand) Salywon & Landrum? 生殖系统是否有助于维持库里蒂巴(D.Legrand) Salywon & Landrum的遗传多样性?

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013012

R. A. R. Silva, F. A. Vieira, E. Tambarussi, K. Chagas, L. F. Watzlawick, H. Koehler

引用次数: 0

Modelling dominant height growth including a rainfall effect using the algebraic difference approach 利用代数差分方法模拟包括降雨效应在内的优势高度增长

IF 0.8 4区农林科学

Cerne Pub Date : 2022-01-01 DOI: 10.1590/01047760202228013112

M. Chauke, H. Mwambi, H. Kotze

引用次数: 0

Effect of environmental factors on the fruit essential oils of Pistacia terebinthus L. growing wild in Turkey 环境因素对土耳其野生黄连木果实精油的影响