农业科学与技术:B最新文献_第5页

Cellulose Acetate Film and Layered Double Hydroxide as Determination Method of Available Phosphorus in the Soil 醋酸纤维素膜和层状双氢氧化物测定土壤中有效磷的方法

农业科学与技术:B Pub Date : 2018-07-28 DOI: 10.17265/2161-6264/2018.07.002

Gustavo Franco de Castro, Jader Alves Ferreira, Allan Robledo Fialho e Moraes, Reinaldo Bertola Cantarutti, Frederico Garcia Pinto, Jairo Tronto, Roberto Ferreira Novais

{"title":"Cellulose Acetate Film and Layered Double Hydroxide as Determination Method of Available Phosphorus in the Soil","authors":"Gustavo Franco de Castro, Jader Alves Ferreira, Allan Robledo Fialho e Moraes, Reinaldo Bertola Cantarutti, Frederico Garcia Pinto, Jairo Tronto, Roberto Ferreira Novais","doi":"10.17265/2161-6264/2018.07.002","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.07.002","url":null,"abstract":"The determination of available phosphorus (P) in soil is essential to the evaluation of the current fertility status, and therefore, for recommending the required phosphate fertilizers for the cultivation of crops. The mostly used extractants around the country are Mehlich-1 (M-1) and anionic resins (AR) and mixed resins (MR). However, there are still controversies in relation to the method that should be used, due to of particularities of each extractor. Therefore, the main objectives of this work was to assess the applicability of films of binary combination between cellulose acetate (CA) biopolymer and calcinated layered double hydroxide (LDH-c), named CAF-LDH-c, as a new extractor of available P in soils. For this, two experiments were set out. In the first one, sub-samples of an Oxisol layer 0-20 cm were used and submitted to increasing doses of total P (0, 250, 750 and 2,250 mg/dm) in the form of monoammonium phosphate (MAP) at different incubation time (5, 30, 60 and 90 d). In the second experiment, samples of 20 soils from different origins and contents of available P were used with distinct chemical and physical attributes. The analysis of available P by M-1, AR, MR, Mehlich-3 (M-3) and CAF-LDH-c extractants was done in both experiments. The efficiency of the extractants was evaluated by Pearson’s linear correlation. The correlation between values of P extracted from soil in the first experiment was highly significant among all extraction methods used, including for CAF-LDH-c. In the second experiment, CAF-LDH-c showed significant correlation (p < 0.01) with M-1, M-3, AR and MR. Thus, the significant correlations of the extractant being tested (CAF-LDH-c) with those usually used indicates the possibility of this new method of routine laboratories for assessing the P availability of for the cultivation of crops.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67560077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Some Biological Features of Tinca tinca Population in Asartepe Reservoir (Ankara) 安卡拉Asartepe水库Tinca种群的生物学特征

农业科学与技术:B Pub Date : 2018-07-28 DOI: 10.17265/2161-6264/2018.07.006

Ömer Saylar, Göktuğ Gül, Mehmet Yilmaz, Ali Gül

{"title":"Some Biological Features of Tinca tinca Population in Asartepe Reservoir (Ankara)","authors":"Ömer Saylar, Göktuğ Gül, Mehmet Yilmaz, Ali Gül","doi":"10.17265/2161-6264/2018.07.006","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.07.006","url":null,"abstract":"Tinca tinca (L., 1758) grafted into Turkish inland waters in 1970 has shown constantly widening distribution since then. It is a locally consumed species with limited economic value. The elucidation of length-weigh relation, condition factor and biological features are of great importance in the determination of the effects of different habitats on particular species. T. tinca is regarded as an important species to be monitored among the fish taxa. This study was intended to study some biological aspects of T. tinca population in Asartepe Reservoir and to compare the results with the available information. The study has been carried out on 131 T. tinca species caught in Asartepe Reservoir between the periods of March 2015-February 2016. The morphometric and meristic properties and the ratio of some diagnostic features to the standard length were elucidated. The highest and the lowest variations observed among the morphometric features were in body length with 21.35% and eye diameter with 8.31%. The corresponding values for the meristic features were pectoral fin unbranched rays with 30.09% and number of vertebrae with 2.68%. The highest percentage relative to the standard length was found in predorsal distance with 56.95%. The age distribution of T. tinca population was between the ranges of 1-9 years of age. The average weight and length were found to be 520.58 ± 207.84 g (103-1,302 g) and 308.68 ± 41.38 mm (190-429 mm). The parameters of a and b of length and weight relation and the correlation coefficient were found to be 0.9692, 3.0522 and 1.6807 ± 0.1264 (1.4199-2.0368), respectively. The results indicate that the growth level of T. tinca population is satisfactory.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67560131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Influences of Cash Crops Price Fluctuations on Household Strategies and Landscape Dynamics 经济作物价格波动对农户策略和景观动态的影响

农业科学与技术:B Pub Date : 2018-07-28 DOI: 10.17265/2161-6264/2018.07.003

Manohisoa Rakotondrabe, Clément Gestin, Jules Razafiarijaona, Harifidy Rakoto Ratsimba, Romaine Ramananarivo, Sigrid Aubert

引用次数: 0

A Comparism of Sorghum Yield between Local Varieties in Turare, Katsina State and Sorghum Hybrids from IAR Zaria, Kaduna State 卡齐纳州图拉雷地方品种与卡杜纳州扎里亚地区高粱杂交种产量比较

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.005

Hassana Maryam Ati, Mudashiru Akinyemi

引用次数: 1

GIS Instruments in Support of the Forestry Activities: A Case Study 支持林业活动的地理信息系统工具:案例研究

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.006

Gabriele Garnero, Ingrid Vigna

引用次数: 1

Production of Dried Lactobacillus plantarum HL-15 Culture for Inhibition Growth of Mycotoxin Producing Fungi 抑制产霉菌毒素真菌生长的植物乳杆菌HL-15干培养物的生产

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.007

Tri Marwati, Irene Pascalia Palan Lamadoken, Titiek Farianti Djaafar, Tyas Utami, Endang Sutriswati Rahayu

{"title":"Production of Dried Lactobacillus plantarum HL-15 Culture for Inhibition Growth of Mycotoxin Producing Fungi","authors":"Tri Marwati, Irene Pascalia Palan Lamadoken, Titiek Farianti Djaafar, Tyas Utami, Endang Sutriswati Rahayu","doi":"10.17265/2161-6264/2018.06.007","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.06.007","url":null,"abstract":"Lactobacillus plantarum HL-15 is able to inhibit the growth of mycotoxin producing fungi. To support the application of that culture, the research aimed to produce dried L. plantarum HL-15 and observe its stability during storage was conducted. Production of dried culture was started by fermentation of L. plantarum HL-15 then centrifuged to get the pellet. The pellet was mixed with filler (rice flour or tapioca) with a ratio 1:1 (pellet:filler (10%), v/v) then dried. The temperature of the inlet and outlet of the spray dryer used were 105 °C and 65 °C, respectively. Dried culture was packaged in aluminum foil and sealed then stored at 4 °C. Results showed that viable cells of dried inoculum with rice flour filler was 11.99 ± 0.01 log CFU/g and dried inoculum with tapioca filler was 11.90 ± 0.04 log CFU/g. Spray dried L. Plantarum HL-15 was proved being able to inhibit the growth of Aspergillus niger. During six months storage, there is a decrease in the viability of spray dried L. plantarum HL-15 either with rice flour or tapioca filler. During four months of storage, there was a decrease in the activity of inhibition of spray dried culture of L. plantarum HL-15 both with fillers of rice flour and tapioca to the growth of A. niger. L. plantarum HL-15 spray dried cultures could be stored at 4 °C for four months for tapioca and five months for rice flour as filler. L. plantarum HL-15 spray dried cultures could inhibit the growth of A. niger so it could be used as a culture for inhibiting the growth of mycotoxin producing fungi in food.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67560016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Organic-Inorganic Hybrid Materials: Layered Double Hydroxides and Cellulose Acetate Films as Phosphate Recovery 有机-无机杂化材料:层状双氢氧化物和醋酸纤维素薄膜作为磷酸盐回收

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.003

Gustavo Franco de Castro, Jader Alves Ferreira, Denise Eulálio, Allan Robledo Fialho e Moraes, Vera Regina Leopoldo Constantino, Frederico Garcia Pinto, Roberto Ferreira Novais, Jairo Tronto

{"title":"Organic-Inorganic Hybrid Materials: Layered Double Hydroxides and Cellulose Acetate Films as Phosphate Recovery","authors":"Gustavo Franco de Castro, Jader Alves Ferreira, Denise Eulálio, Allan Robledo Fialho e Moraes, Vera Regina Leopoldo Constantino, Frederico Garcia Pinto, Roberto Ferreira Novais, Jairo Tronto","doi":"10.17265/2161-6264/2018.06.003","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.06.003","url":null,"abstract":"With demand increasing for phosphate recovery, a considerable share of current research is dedicated to elaborate multifunctional materials. In this way, the objective of this work was to produce hybrid films from the combination of cellulose acetate (CA) biopolymer and magnesium and aluminium layered double hydroxides (LDHs) and investigate their performance for phosphate recovery. In this work, the following materials were prepared and characterized: LDH, calcinated LDH (LDH-c), CA film (CAF), CA film with LDH (CAF-LDH) and CA film with LDH-c (CAF-LDH-c). The produced materials were characterized by X-ray diffraction, thermogravimetric analysis coupled with differential scanning calorimetry and mass spectrometry, attenuated total reflectance Fourier transform infrared spectroscopy and scanning electronic microscopy. The thickness, H2O absorption (AH2O), stability in H2O and phosphate adsorption of the produced films were evaluated. The adsorption capacity of films was compared to LDHs in powder form. The CAF-LDH and CAF-LDH-c increased film thickness, where CAF-LDH-c was thicker than CAF-LDH. CAF-LDH-c had higher AH2O than the other films, because of its increased thickness and mainly because of the H2O sorption process of these materials. H2O stability of 98.97% for CAF-LDH and 96.81% for CAF-LDH-c suggest the produced films can maintain their structural properties even after a long contact period with aqueous solutions. For the CAF-LDH-c, the maximum adsorption capacity of phosphate, according to the Langmuir-Freundlich model, was 6.98 mg/g. The adsorption value suggests that this film can be used as an efficient phosphorus (P) adsorbent from wastewater or a eutrophicated source.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67560067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Germination Eco-physiology and Emergence of Physalis peruviana Seedlings 紫泡棉幼苗萌发、生态生理及出苗

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.002

Anderson Luis Nunes, Serleni Sossmeier, Ana Paula Gotz, Noryam Bervian Bispo

{"title":"Germination Eco-physiology and Emergence of Physalis peruviana Seedlings","authors":"Anderson Luis Nunes, Serleni Sossmeier, Ana Paula Gotz, Noryam Bervian Bispo","doi":"10.17265/2161-6264/2018.06.002","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.06.002","url":null,"abstract":"The genus Physalis belongs to the family Solanaceae, Physalis peruviana L. being the most cultivated species. As a newly explored crop in Brazil, little is known about its germination ecology and emergence under local conditions. The aim of the present study was to determine the effect of temperature, photoperiod, planting depth and seed dormancy on the establishment of Physalis seedlings. Tests were conducted on two Physalis biotypes from Sertão (Rio Grande do Sul state―RS) and Capelinha (Minas Gerais state). Seeds incubated at 27 °C and 32 °C exhibited high germination percentages of 98% and 96%, respectively. Germination declined when seeds were incubated at 12, 17, 22 and 37 °C. Photoperiods longer than 8 h are sufficient for seed germination, while the absence of light significantly reduces the germination percentage. Seeds should be planted at a depth of 1-2 cm to ensure better seedling emergence. After 18 months of field work, 81% of seeds had germinated and/or been predated prior to assessment, indicating low seed dormancy. As such, ideal conditions for Physalis seedling establishment are planting depth between 1 cm and 2 cm, temperatures ranging from 27 °C to 32 °C and a photoperiod longer than 8 h, with a postharvest seed shelf life of 12 months.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67559948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Transformation CodA Gene to Lily Plants by Agrobacterium tumefaciences Mediated 根癌农杆菌介导CodA基因向百合植株的转化

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.004

Bui Thi Thu Huong, Dong Huy Gioi, L. Bình

引用次数: 0

Screening for Sodium-Salt Tolerance at the Seedling Stage of Rice (Oryza sativa L.) Genotypes from Sudan and South Sudan 水稻苗期耐钠盐性筛选来自苏丹和南苏丹的基因型

农业科学与技术:B Pub Date : 2018-06-28 DOI: 10.17265/2161-6264/2018.06.001

Seif Gasim, Ishraka Abuanja, Mohamedsalih Dafalla, Abdelwahab Abdalla

{"title":"Screening for Sodium-Salt Tolerance at the Seedling Stage of Rice (Oryza sativa L.) Genotypes from Sudan and South Sudan","authors":"Seif Gasim, Ishraka Abuanja, Mohamedsalih Dafalla, Abdelwahab Abdalla","doi":"10.17265/2161-6264/2018.06.001","DOIUrl":"https://doi.org/10.17265/2161-6264/2018.06.001","url":null,"abstract":"Morpho-physiological and genetic studies of salinity are important in understanding the mechanism of plant adaptation to stressful environment. Eighteen rice genotypes collected from Sudan and South Sudan, which were never tested for salt tolerance, as well as two genotypes (FL478 as tolerant check and IR29 as sensitive check) from the International Rice Research Institute (IRRI), were subjected to salinity stress at seedling stage. Test was carried out in hydroponic system applying electrical conductivity (EC) 12 dS/m NaCl using randomized complete block design with three replicates. Most of the genotypes showed sensitivity to salt stress; one genotype PIPANFARY RED2 was moderately sensitive and three genotypes MASURY1, MASURY2 and FL478 were tolerant. Salinity significantly reduced leaf dry weight, shoot dry weight, root dry weigh and biomass production (biomass/plant) by 31%, 42%, 60% and 47%, respectively. Tolerant genotypes accumulated low amount (2.52 g/100 g dry weight (dwt)) of Na in the root, whereas highly sensitive genotypes accumulated high amount (3.87 g/100 g dwt) of Na. Tolerant genotypes showed less reduction in K concentration than the sensitive genotypes. Therefore, they maintained lowest Na/K ratio in the shoot (1.47%) than in the root (3.69%) compared to the intolerant genotypes (7.49% and 8.49%). The genotypes that showed tolerance to salinity stress can be used as a source of resistance/tolerance in a breeding program for rice improvement in uplands areas in semi-arid condition.","PeriodicalId":70192,"journal":{"name":"农业科学与技术:B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67559802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1