Phyton-international Journal of Experimental Botany最新文献_第5页

Evapotranspiration and energy balance measurements over a soybean field in the semiarid sowthwestern region of Buenos Aires province (Argentina) 阿根廷布宜诺斯艾利斯省西南部半干旱地区大豆田蒸散量和能量平衡测量

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/PHYTON.2017.86.181

Cargnel, A. Orchansky, R. Brevedan, S. Baioni, M. Fioretti

{"title":"Evapotranspiration and energy balance measurements over a soybean field in the semiarid sowthwestern region of Buenos Aires province (Argentina)","authors":"Cargnel, A. Orchansky, R. Brevedan, S. Baioni, M. Fioretti","doi":"10.32604/PHYTON.2017.86.181","DOIUrl":"https://doi.org/10.32604/PHYTON.2017.86.181","url":null,"abstract":"Two field experiments were carried out in a semiaridregion of Argentina over a soybean (Glycine max L. Merrill) field.The sites of study were San Adolfo (39˚ 23’ S, 62˚ 22’ W, 22 m.a.s.l.)and Nueva Roma (38˚ 29’ S, 62˚ 39’ W, 70 m.a.s.l.). Soybeans wereplanted on Jan 4 (San Adolfo) and Nov 27 (Nueva Roma) in 0.75m wide rows and at 400000 pl/ha during two consecutive growingseasons. Energy balance and evapotranspiration (ET) were estimatedduring the reproductive stages from full bloom (R2) to fullmaturity (R8). In Nueva Roma ET or latent heat flux (LE) was estimatedusing the Bowen ratio-energy balance (BREB) (LEb) and thePriestley-Taylor equation (LEPT) with αPT=1.26, 48 h after irrigationor rain. Both methods could be used to predict ET since the ratioLEb/LEPT ranged between 0.83 and 0.95. The observed Bowen ratiovalues were almost 0 during and after rain and increased to approximately0.45 several days after rain. In San Adolfo LE was estimatingusing the Priestley-Taylor equation. For both sites the regressionanalysis for comparison available energy (Rn-G) and LE usingBREB or LEPT indicated that, approximately 90% of the availableenergy was consumed by LE without detecting significative advectiveconditions.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"50 1","pages":"181-189"},"PeriodicalIF":1.7,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78266683","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}

引用次数: 1

Effect of Prohexadione calcium, 6-benzyl amino purine and 6-furfuryladenine on vegetative growth and fruit quality in apple 普己二酮钙、6-苄基氨基嘌呤和6-糠基腺苷对苹果营养生长和果实品质的影响

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/phyton.2017.86.282

H. Ramírez, J. Sanchez-Canseco, Vm Zamora-Villa, Jh Rancaño-Arrioja

{"title":"Effect of Prohexadione calcium, 6-benzyl amino purine and 6-furfuryladenine on vegetative growth and fruit quality in apple","authors":"H. Ramírez, J. Sanchez-Canseco, Vm Zamora-Villa, Jh Rancaño-Arrioja","doi":"10.32604/phyton.2017.86.282","DOIUrl":"https://doi.org/10.32604/phyton.2017.86.282","url":null,"abstract":"It is well established that the climatic change is alteringyield in fruit trees. This adversity reflects, among others, extremetemperature modifications in northern Mexico. This effect modifiesnegatively the physiology of apple trees (Malus domestica Borkh.),originating excessive shoot growth and a decrease in flower bud formation.In this study, Prohexadione-Ca (P-Ca), 6-benzyl amino purine(BAP) and N6-furfuryladenine (kinetin) were evaluated on shootand reproductive growth in Golden Delicious apple trees in ArteagaCoah., Mexico. A completely randomized design with 12 treatmentswas used. These were: Control, Prohexadione calcium (Ca-P) at dosesof 150, 300 and 450 mg/L, cytokinins (CK) [6-benzylaminopurine(BAP) + N6-furfuryladenine (kinetin)] at concentrations of 150 and300 mg/L, and combinations of these bioregulators to the doses mentioned.The experimental unit consisted of two trees per treatment.Variables evaluated were: shoot growth, fresh weight, vitamin C, andcarotenoid concentration in fruit and return bloom. P-Ca drasticallyreduced shoot growth and increased return bloom. Carotenoids andvitamin C concentrations were increased in fruits with this retardant.Cytokinins applied individually or in combination with P-Ca causedincrements on flower bud formation, fruit weight, and carotenoid andvitamin C concentrations in harvested fruits.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"47 1 1","pages":"282-289"},"PeriodicalIF":1.7,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79262805","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}

引用次数: 0

Nocturnal accumulation of titratable acidity in Tillandsia makoyana (Bromeliaceae), epiphytic bromeliad of the tropical dry forest 热带干燥森林附生凤梨科凤梨科植物凤梨夜间可滴定酸度的积累

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/PHYTON.2017.86.278

E. A. Díaz-Álvarez, AP Rojas-Cortés, E. Barrera

引用次数: 0

Generation and characterization of a population of Tagetes minuta of broad genetic base - Obtaining selected individuals 具有广泛遗传基础的万寿菊(Tagetes minuta)群体的产生和特征——获得精选个体

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/PHYTON.2017.86.214

Y. Massuh, L. Torres, Sf Ocaño, P. Bruentti, A. Chaves, J. Zygadlo, Ojeda

{"title":"Generation and characterization of a population of Tagetes minuta of broad genetic base - Obtaining selected individuals","authors":"Y. Massuh, L. Torres, Sf Ocaño, P. Bruentti, A. Chaves, J. Zygadlo, Ojeda","doi":"10.32604/PHYTON.2017.86.214","DOIUrl":"https://doi.org/10.32604/PHYTON.2017.86.214","url":null,"abstract":"Tagetes minuta L. (Asteraceae) is an annual herb that isof great interest due to the bioactive properties of its essential oil (EO)and its industrial use. In Argentina, 0.5 tons/year of EO are obtainedfrom wild populations and commercialized with a value of 80-120US$/kg. The introduction of the species in culture, and the initiationof a process of domestication, selection and breeding material aimedat generating higher yields and quality of EO as an alternative to wildcollection. The goal of this work was to generate a population with abroad genetic base to obtain high phenotypic variability, and characterizethe individuals morphologically and chemically, thus identifyingand selecting those with outstanding characteristics. From seedsobtained by free crossing of plants of different provenances grown ina preliminary test, a population of broad genetic base was generatedin an experimental plot. Quantitative and qualitative morphologicaltraits were measured in all plants and the selection criteria were definedto form a selected population. The morphological selection criteria(height, plant structure and No of branches) were met by 26% ofthe evaluated plants, of which 2.7% presented interesting EO compositions(selected individuals). Descriptive, principal components andcorrespondence analysis were made. Great variability in the populationof broad genetic base was found regarding the analyzed characters.Since our character definitions allowed to compare and differentiatethe evaluated plants, they were considered as good descriptors of thespecies. The selected individuals were differentiated morphologicallyinto two groups and chemically into three groups, which differed intheir EO main compounds. The selection of these individuals constitutesthe initial stage of this ongoing work that will enable us to continuethe process of domestication and breeding of the species orientedto obtain selected chemotypes.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"46 1","pages":"214-223"},"PeriodicalIF":1.7,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89948838","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}

引用次数: 1

Effect of preharvest foliar sprays of calcium nitrate on melon fruit quality 采前叶面喷施硝酸钙对甜瓜果实品质的影响

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/PHYTON.2017.86.131

F. Muñoz, V. E. Ruiz, C. Bouzo

引用次数: 1

Modelling the spatial behavior of Frankliniella occidentalis (Thysanoptera: Thripidae) in growing avocado 牛油果种植过程中西富兰克林蝇的空间行为模拟

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/PHYTON.2017.86.097

F. Maldonado, J. Ramírez, M. Rubí, X. Antônio, A. Lara, A. Acosta, R. Rivera, A. Avila

{"title":"Modelling the spatial behavior of Frankliniella occidentalis (Thysanoptera: Thripidae) in growing avocado","authors":"F. Maldonado, J. Ramírez, M. Rubí, X. Antônio, A. Lara, A. Acosta, R. Rivera, A. Avila","doi":"10.32604/PHYTON.2017.86.097","DOIUrl":"https://doi.org/10.32604/PHYTON.2017.86.097","url":null,"abstract":"Avocado (Lauraceae: Persea americana Mill.) is a cropof great economic importance for Mexico in terms of perennialproduction systems, since in recent years the marketing of this fruithas increased markedly at national and international levels. In 2013,168113.64 ha were cultivated in Mexico, with an average yield of 10.2ton/ha, obtaining a production of approximately 1467837.35 ton.Like any other fruit can suffer damage from pests (insects, nematodes,mites etc.) and diseases (caused by fungi, bacteria and viruses). In thisregard, one of the most problematic insects is Frankliniella occidentalis,which causes significant crop losses, feeding preferably on softtissues such as leaf buds, flowers, young leaves and developing fruits.The most severe damage, economically speaking, is notorious at firstglance, and that it causes ridges or bumps on the pericarp, and theselesions are more apparent as the fruit ripens. The aim of this studywas to model the spatial distribution of Frankliniella occidentalis usinggeostatistical techniques and density maps obtained by kriging. Thesamplings were carried out fortnightly in three commercial plots offour acres each in the town of Coatepec Harinas, State of Mexico usingthe method of quadrants. The results indicated that the spatial distributionof populations of F. occidentalis was aggregated in each of thesampling distribution dates; cross-values validation semivariogramscorroborated that information, and also a high spatial dependence.The maps obtained allowed to define infested areas and areas free ofdamage, thus establishing control measures at specific points in eachplot to make an efficient use of pesticides.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"130 5 1","pages":"97-111"},"PeriodicalIF":1.7,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88539453","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}

引用次数: 1

Comparative proteome analysis in hot pepper (Capsicum annuum L.) after space flight 航天后辣椒(Capsicum annuum L.)蛋白质组比较分析

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI: 10.32604/phyton.2017.86.236

L. Xie, X. Wang, M. Peng, Y.G. Zhou, Lx Chen, Lx Liu, Yl Gao, Yh Guo

{"title":"Comparative proteome analysis in hot pepper (Capsicum annuum L.) after space flight","authors":"L. Xie, X. Wang, M. Peng, Y.G. Zhou, Lx Chen, Lx Liu, Yl Gao, Yh Guo","doi":"10.32604/phyton.2017.86.236","DOIUrl":"https://doi.org/10.32604/phyton.2017.86.236","url":null,"abstract":"Hot pepper (Capsicum annuum L.) is an important cropall over the world. To explore and identify differentially expressedproteins of hot pepper after space flight, three space-induced mutants(Y1, Y2 and Y3), which obtained new traits after space flightcompared with their control lines (W1 and W2), were analyzed usingcomparative proteome analysis. In this study, leaf morphologicalcharacteristics of five kinds of hot pepper variations were evaluatedby scanning electron microscopy (SEM) and transmission electronmicroscopy (TEM). Results showed that obvious changes of cellularstructure were seen in space induced mutants. Thirty nine out ofthe 255 differentially expressed proteins were successfully sequenced.Among these 39 proteins, 31 were homologous with known proteins,and the others were set as a hypothetical protein. All identifiedproteins were further classified into six groups including proteinmetabolism, energy metabolism and photosynthesis. In conclusion,these findings will benefit for the research of mutagenic mechanismsat the level of proteomics, and provide an effective way for new hotpepper breeding.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"37 1","pages":"236-245"},"PeriodicalIF":1.7,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76743716","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}

引用次数: 5

Antioxidant, Antimicrobial Activities and Phytochemical Constituents of Cichorium intybus L. Aerial Parts 菊苣地上部抗氧化、抗菌活性及植物化学成分研究

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-15 DOI: 10.3923/IJB.2018.24.29

R. Jasim

引用次数: 13

Variation in susceptibility to insecticides in Bemisia tabaci biotype B fed on different hosts 不同寄主对B型烟粉虱杀虫剂敏感性的差异

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-09-18 DOI: 10.32604/phyton.2016.85.256

E. Cerna-Chávez, Y. Martínez-Martínez, J. Landeros-Flores, L. Aguirre-Úribe, Sánchez-Valdes, Melchor Cepeda-Siller, Omegar Hernández-Bautista, Y. Ochoa-Fuentes

{"title":"Variation in susceptibility to insecticides in Bemisia tabaci biotype B fed on different hosts","authors":"E. Cerna-Chávez, Y. Martínez-Martínez, J. Landeros-Flores, L. Aguirre-Úribe, Sánchez-Valdes, Melchor Cepeda-Siller, Omegar Hernández-Bautista, Y. Ochoa-Fuentes","doi":"10.32604/phyton.2016.85.256","DOIUrl":"https://doi.org/10.32604/phyton.2016.85.256","url":null,"abstract":"Bemisia tabaci (Gennaadius) biotype B is one of themost important pests due to the number of hosts and economic lossesit produces. Its control is based on the application of chemicals,which has led to resistance problems. However, the host may also influencethe induction of resistance to pesticides. Therefore, the presentstudy evaluated the susceptibility of populations of B. tabaci biotypeB developed indifferent hosts to three insecticides belonging todifferent toxicological groups. Bemisia tabaci biotype B populationswere collected and reared in six different hosts (three crops and threeassociated weeds: Solanum lycopersicum, Solanum nigrum, Phaseolusvulgaris, Melampodium divaricatum, Cucurbita spp. and Heliotropiumangiospermun) in the state of Chiapas, Mexico. By using the dippingbioassay method with nymphs five- to eight-days-old, the CL50 wasdetermined. The higher values of bifenthrin were recorded on M.divaricatum and S. nigrum with 278.74 and 177.76 ppm, respectively.For imidacloprid, S. lycopersicum and S. nigrum recorded 179.59 and168.59 ppm, respectively. Finally for endosulfan, M. divaricatum andH. angiospermun registered values of 134.57 and 156.52 ppm, respectively.Therefore, the host affected the tolerance of Bemisia tabaci biotypeB to insecticides, primarily because of the induced resistance ofeach of the plant species that served as hosts, providing the ability todetoxify the various pesticides by using enzymes.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"1 1","pages":"256-261"},"PeriodicalIF":1.7,"publicationDate":"2017-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90760780","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}

引用次数: 1

Selenium invoked antioxidant defense system in Azolla caroliniana plant 硒激活了植物抗氧化防御系统

IF 1.7 4区生物学

Phyton-international Journal of Experimental Botany Pub Date : 2017-09-18 DOI: 10.32604/phyton.2016.85.262

Amal M. Hassan, E. Mostafa

{"title":"Selenium invoked antioxidant defense system in Azolla caroliniana plant","authors":"Amal M. Hassan, E. Mostafa","doi":"10.32604/phyton.2016.85.262","DOIUrl":"https://doi.org/10.32604/phyton.2016.85.262","url":null,"abstract":"Plants of Azolla caroliniana were treated with differentselenium concentrations (0, 1, 2, 5, 7, 10 ppm) for seven days.Selenium (Se) content in Azolla plants increased significantly withincreasing Se concentrations in the culture media up to 5 ppm. Thisindicated that Azolla plants were a good accumulator for Se. Seleniumaccumulation determined changes in Azolla biomass, doublingtime and relative growth rates. Treatment of Azolla plants with lowconcentrations of Se (1 ppm) resulted in a significant increase in biomass.This was accompanied by a reduction in hydrogen peroxide andmalondialdehyde (MDA) contents; the decrease percentages were78% and 60%, respectively at 1 ppm Se in comparison with the control.At higher Se concentrations (>5 ppm), there was a significantincrease in H2O2 and MDA contents, these increases were 3.2- and2.8-fold at 10 ppm Se in comparison to controls, respectively. Comparedto that in controls, total ascorbate as well as total glutathionecontents, were significantly increased. The activity of the GR enzymewas significantly increased in Azolla plants with addition of differentconcentrations of Se. The increase was 2.2- and 3.4-fold at 2 and7 ppm Se, respectively. The addition of high concentrations of Se(>5 ppm) to the growth media resulted in a significant increase inthe GSH-PX and APX activities in Azolla plants. Thus, addition ofSe affects Azolla plants, and these effects change from beneficial totoxic, as reflected in the metabolism and growth of the plants.","PeriodicalId":20184,"journal":{"name":"Phyton-international Journal of Experimental Botany","volume":"1 1","pages":"262-269"},"PeriodicalIF":1.7,"publicationDate":"2017-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86984496","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}

引用次数: 6