Scientia Agricola最新文献_第10页

Screening of the hatching control of root-knot nematodes using extract concentrations from oat genotypes 利用燕麦基因型提取物浓度筛选根结线虫的孵化控制

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2021-0027

C.F. CARRARO-LEMES, J. Chiomento, C. C. Deuner, S. Scheffer-Basso

引用次数: 0

The relationship between Fusarium head blight traits, thousand-kernel weight, and yield in winter wheat 冬小麦赤霉病性状、千粒重与产量的关系

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992X-2020-0046

R. Jevtić, Nina Skenderović, V. Župunski, M. Lalošević, B. Orbović, S. Maširević

{"title":"The relationship between Fusarium head blight traits, thousand-kernel weight, and yield in winter wheat","authors":"R. Jevtić, Nina Skenderović, V. Župunski, M. Lalošević, B. Orbović, S. Maširević","doi":"10.1590/1678-992X-2020-0046","DOIUrl":"https://doi.org/10.1590/1678-992X-2020-0046","url":null,"abstract":"ABSTRACT: Factors influencing Fusarium head blight (FHB) occurrence and yield losses in winter wheat have extensively been studied through the years; however, reports on the relationship between FHB traits and yield are conflicting. In addition, studies neglected the relationship between FHB traits and thousand-kernel weight (TKW). This study evaluated the variability in the relationship between FHB traits, TKW, and yield under field conditions, using 40 commercial winter wheat cultivars differing in resistance/susceptibility to FHB. In general, the FHB index had greater relation to yield, while Fusarium-damaged kernels (FDK) was more related to TKW. The relationship between yield, TKW, FHB index, and FDK was also determined by resistance/susceptibility of winter wheat cultivars. Fusarium-damaged kernels influenced yield more in moderately resistant (R2 = 43 %) than in susceptible/moderately susceptible cultivars (R2 = 27 %). The influence of the FHB index on TKW was weak (R2 = 9 %) in susceptible/moderately susceptible cultivars and in moderately resistant ones (R2 = 1 %). The potential to predict TKW from yield under pathogen pressure was limited due to the moderate-to-positive correlation between yield and TKW (r = 0.349, p < 0.001). This study provides insights into factors that influence TKW under FHB pathogen pressure and gives direction to more efficient and reliable investigations on grain resistance toward FHB.","PeriodicalId":49559,"journal":{"name":"Scientia Agricola","volume":"79 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67582360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2

Nutritional quality of wet distillers’ grains co–ensiled with whole–plant maize and its feeding value for lambs 湿酒糟与全株玉米共青贮的营养品质及其对羔羊的饲用价值

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992X-2020-0122

R. Moyo, W. V. Niekerk, A. Hassen, Cornelius Jacobus Lindeque du Toit, R. J. Coertze, F. A. Adejoro

{"title":"Nutritional quality of wet distillers’ grains co–ensiled with whole–plant maize and its feeding value for lambs","authors":"R. Moyo, W. V. Niekerk, A. Hassen, Cornelius Jacobus Lindeque du Toit, R. J. Coertze, F. A. Adejoro","doi":"10.1590/1678-992X-2020-0122","DOIUrl":"https://doi.org/10.1590/1678-992X-2020-0122","url":null,"abstract":"ABSTRACT: The high moisture content of wet distillers’ grains with solubles (WDGS) has limited its feeding value despite the relatively high nutritive value. The co–ensiling with whole–plant maize, as a complementary feed, was evaluated for growing lambs by formulating diets whose contents were: whole plant maize silage (WPMS) + sunflower oilcake meal (SOM) (control, WPMS + SOM), whole plant maize silage + dried distillers’ grains (WPMS + DDGS), and whole–plant maize (WPM) co–ensiled with WDGS (WPM – WDGS). Rumen fermentation parameters and in situ degradability of the diets were evaluated using three cannulated Merino wethers in a cross over 3 × 3 Latin square design experiment that lasted 39 days. Concurrently, feed intake and growth performance of South Africa Mutton Merino lambs (29.7 ± 3.6 kg) were evaluated over 45 days. The WPMS + DDGS diet had a lower rate of dry matter degradation (p 0.05). No differences in rumen volatile fatty acid, ammonia nitrogen concentration nor rumen pH of the wethers as a result of diet differences were observed. Lambs consuming the WDGS–based diet had a lower average daily intake and average daily gain (p 0.05). In conclusion, co–ensiling WDGS with whole–plant maize provides the opportunity for the long–term storage and utilization of WDGS in lamb feeding.","PeriodicalId":49559,"journal":{"name":"Scientia Agricola","volume":"79 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67583230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Changes in soil temperature and moisture due to sugarcane straw removal in central-southern Brazil 巴西中南部甘蔗秸秆去除导致的土壤温度和湿度变化

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2020-0309

Arthur K. B. Santos, G. V. Popin, M. Gmach, M. Cherubin, M. Siqueira Neto, C. Cerri

引用次数: 4

Citrus orchards under formation evaluated by UAV-Based RGB Imagery 基于无人机RGB图像的柑桔园形成评价

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2021-0052

W. D. Oliveira, S. Santos, T. Struiving, Lucas Ferreira da Silva

{"title":"Citrus orchards under formation evaluated by UAV-Based RGB Imagery","authors":"W. D. Oliveira, S. Santos, T. Struiving, Lucas Ferreira da Silva","doi":"10.1590/1678-992x-2021-0052","DOIUrl":"https://doi.org/10.1590/1678-992x-2021-0052","url":null,"abstract":"Few studies have investigated the biometric attributes of citrus orchards under formation that use RGB sensors on board unmanned aerial vehicles (UAV) and the challenges are great. This study aimed to develop and validate a method of using aerial UAV images by automated routines to evaluate the biometric attributes of a crop of ‘Tahiti’ acid lime under formation. We used a multirotor UAV, programmed to capture images at three different map scales, with a frontal and side overlap of 80 %. Geoprocessing was carried out both with and without ground control points on each scale. An automated routine was developed in an opensource environment, consisting of three processing phases: i) Estimation of the plant biometric attributes, ii) Statistical analysis, and iii) Statistical Report Map (SRM). The use of the developed routine allowed to delimit and estimate the crown projection area with an accuracy of more than 95 % as well as identify and quantify the plants with an accuracy of over 97 %. The use of ground control points during the processing stage does not increase accuracy in estimating the biometric attributes under evaluation. On the other hand, map scale is strongly correlated with the quality of the estimates, especially plant height. The results allowed to define a method for the acquisition and analysis of aerophotogrammetric data using a UAV, which can be used to measure the plant biometric attributes under analysis and the method can be easily adapted to","PeriodicalId":49559,"journal":{"name":"Scientia Agricola","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67587593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Vegetative and productive responses of tabasco pepper to fertigation and plastic mulching 塔巴斯科辣椒对施肥和地膜覆盖的营养和生产反应

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2021-0084

Sérgio Weine Paulino Chaves, R. D. Coelho, J. Costa, Sergio André Tapparo

引用次数: 2

Improving irrigation, crop, and soil management for sustainable soybean production in Southern Brazilian lowlands 改善巴西南部低地大豆可持续生产的灌溉、作物和土壤管理

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2021-0115

Robson Giacomeli, R. Carlesso, M. T. Petry, Leonardo Chechi, Amauri Nelson Beutler, Fernando Sintra Fulaneti, C. M. Ferrazza

引用次数: 1

Maturation and quality of ‘BRS Magna’ grapes influenced by rootstocks in rainy season 雨季砧木对‘BRS Magna’葡萄成熟和品质的影响

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992X-2020-0216

Luana Ferreira dos Santos, José Henrique Bernardino Nascimento, Antônio Augusto Marques Rodrigues, E. Andrade, M. Lima

{"title":"Maturation and quality of ‘BRS Magna’ grapes influenced by rootstocks in rainy season","authors":"Luana Ferreira dos Santos, José Henrique Bernardino Nascimento, Antônio Augusto Marques Rodrigues, E. Andrade, M. Lima","doi":"10.1590/1678-992X-2020-0216","DOIUrl":"https://doi.org/10.1590/1678-992X-2020-0216","url":null,"abstract":"ABSTRACT: Seasonal variations and production factors can influence the quality of grapes. Considering the Sub-middle region of the Sao Francisco Valley, Brazil, differentiated by production in rainy and warmer periods of the year, the climatic conditions in each season affect the duration of the phenological phases and quality of the grapes. The objective of this study was to characterize the changes in the quality components during maturation of ‘BRS Magna’ grapes on different rootstocks, in rainy seasons under tropical conditions, as a support to define the harvest time. The experiment was conducted in Petrolina, Pernambuco, Brazil, from Jan to Apr 2017 (cycle 1) and Dec 2017 to Apr 2018 (cycle 2) evaluating rootstocks and age of the fruits. Bunches were picked from the start of maturation to the harvest: 49, 56, 61, 64 and 68 days after fruit set (DAF) for cycle 1, and 35, 41, 48, 55, 61, and 66 DAF for cycle 2. In cycle 1 ‘IAC 572’ and ‘Paulsen 1103’ rootstocks provided higher sugar contents in grapes, which was only repeated in cycle 2 for ‘Paulsen 1103’. The accumulation of anthocyanins and yellow flavonoids was favored by ‘IAC 313’ and ‘IAC 572’ rootstocks in cycle 1, and by ‘IAC 313’ and ‘IAC 766’ in cycle 2. A higher content of polyphenols was conferred on ‘IAC 572’ in cycle 1 and on ‘IAC 766’ in cycle 2, which also had a greater antioxidant capacity. Although there were differences between rootstocks, harvesting at approximately 64 DAF maximized grape quality for all treatments.","PeriodicalId":49559,"journal":{"name":"Scientia Agricola","volume":"79 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67584967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Particle image velocimetry and digital image correlation for determining the elasticity modulus in wood 测定木材弹性模量的粒子图像测速和数字图像相关

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992x-2020-0297

Cássio Humberto Lima, F. C. Gomes, Rodrigo Allan Pereira, Fernando Pujaico Rivera

引用次数: 1

Mega-environment analysis of maize breeding data from Brazil 巴西玉米育种数据的大环境分析

IF 2.6 3区农林科学

Scientia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1678-992X-2020-0314

Francielly de Cássia Pereira, M. Ramalho, Marcio F. R. Resende, Renzo Garcia Pinho

{"title":"Mega-environment analysis of maize breeding data from Brazil","authors":"Francielly de Cássia Pereira, M. Ramalho, Marcio F. R. Resende, Renzo Garcia Pinho","doi":"10.1590/1678-992X-2020-0314","DOIUrl":"https://doi.org/10.1590/1678-992X-2020-0314","url":null,"abstract":"ABSTRACT: The development and recommendation of single cross maize hybrids (SH) to be used in extensive land areas (mega-environments), and in different crop seasons requires many experiments under numerous environmental conditions. The question we asked is if the data from these multi-environment experiments are sufficient to identify the best hybrid combinations. The aim of this study was to critically analyze the phenotype data of experiments of yield, established by a large seed producing company, under a high level of imbalance. Data from evaluation of 2770 SH were used from experiments conducted over four years, involving the first and second crop seasons, in 50 locations of different years and regions of Brazil. Different types of analysis were carried out and genetic and non-genetic components were estimated, with emphasis on the different interactions of the SH with the environments. Results showed that the coincidence of common hybrids in these experiments is normally small. The estimates of the correlations between of the hybrids coinciding in the environments two by two is of low magnitude. The hybrid × crop season interaction was always expressive; however, the interactions of hybrids and other environmental variables were also important. Under these conditions, alternatives were discussed for making with the information obtained from the experiments, can be more efficient on the process to obtain new hybrids by companies.","PeriodicalId":49559,"journal":{"name":"Scientia Agricola","volume":"79 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67586440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2