Revista Brasileira de Milho e Sorgo最新文献_第6页

VEGETATION INDICES AND THEIR CORRELATION WITH SECOND-CROP CORN GRAIN YIELD IN MATO GROSSO DO SUL, BRAZIL 巴西南马托格罗索州植被指数及其与二季玉米产量的相关性

Revista Brasileira de Milho e Sorgo Pub Date : 2021-03-24 DOI: 10.18512/RBMS2021V20E1195

Hermano José Ribeiro Henriques, D. Schwambach, V. Fernandes, J. W. Cortez

{"title":"VEGETATION INDICES AND THEIR CORRELATION WITH SECOND-CROP CORN GRAIN YIELD IN MATO GROSSO DO SUL, BRAZIL","authors":"Hermano José Ribeiro Henriques, D. Schwambach, V. Fernandes, J. W. Cortez","doi":"10.18512/RBMS2021V20E1195","DOIUrl":"https://doi.org/10.18512/RBMS2021V20E1195","url":null,"abstract":"The emergence of satellites covering new electromagnetic wavelengthsallowed developing different vegetation indices, enabling the study of theircorrelation with grain yield. In this sense, this study aimed to evaluate the accuracy between the mean values of seven vegetation indices and the mean corn grain yield in the field by applying linear regression equations. The indices NDVI, NDRE, GNDVI, GRNDVI, and PNDVI were used, with changes proposed in the equations of the indices GRNDVI and PNDVI, in which the red wavelength was replaced by the red edge. The multispectral bands provided by the Sentinel-2A and Sentinel-2B imaging instruments were used as a source of data to calculate the vegetation indices, while the values recorded by the grain harvester were used for the survey of grain yield data. A high correlation was observed between indices and grain yield. The replacement of the red wavelength with the red edge improves the correlation between vegetation indices and grain yield. Moreover, the indices GNDVI and NDVI easily saturate, reaching maximum values and not allowing the distinction between sample classes. Therefore, the vegetation indices PRENDVI and GRENDVI are recommended for estimating grain yield.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45695364","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

AGRONOMIC PERFORMANCE OF SUMMER MAIZE IN CROP ROTATION SYSTEMS 轮作制度下夏玉米的农艺性能

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-22 DOI: 10.18512/rbms2020v19e1125

Lígia Maria MARASCHI DA SILVA PILETTI, L. C. F. D. Souza, M. L. Secretti, Márcio Roberto Rigotte, I. D. S. DE LIMA JUNIOR, A. L. Viegas Neto

{"title":"AGRONOMIC PERFORMANCE OF SUMMER MAIZE IN CROP ROTATION SYSTEMS","authors":"Lígia Maria MARASCHI DA SILVA PILETTI, L. C. F. D. Souza, M. L. Secretti, Márcio Roberto Rigotte, I. D. S. DE LIMA JUNIOR, A. L. Viegas Neto","doi":"10.18512/rbms2020v19e1125","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1125","url":null,"abstract":"Maize grown in the summer can be an important option for crop rotation with soybean. The objective of this work was to study the agronomic performance of maize in different crop rotation systems. The experiment was conducted at the Experimental Farm belonging to the College of Agricultural Sciences of the Federal University of Grande Dourados (UFGD), located in the municipality of Dourados, MS, in the agricultural year of 2014/15. Randomized block design was used, with ten treatments and four replications. The treatments consisted of precedent crops: white oat (Avena sativa), forage radish (Raphanus sativus L. var. oleifera), showy rattlebox (Crotalaria spectabilis), fodder vetch (Vicia villosa), crambe (Crambe abyssinica), safflower (Carthamus tinctorius L.), niger (Guizothia abyssinica), canola (Brassica napus L. var. oleifera), wheat (Triticum aestivum L.) and fallow. These crops were planted in the fall/winter season of each agricultural year, while maize was sown in October of each year. Plant height, ear insertion height, ear length and diameter, grains per ear, thousand grain weight and yield were evaluated. There was significant difference only for yield, which presented the highest values in the rotation with safflower, canola, forage radish, wheat, white oat and niger.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48077775","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: 0

WEED CONTROL IN “LL” MAIZE TOLERANT TO GLUFOSINATE-AMMONIUM LL玉米抗草胺杂草的防治

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-22 DOI: 10.18512/rbms2020v19e1194

L. Galon, M. R. D. Silva, A. F. D. Silva, André Dalponte Menegat, Renan Pawelkiewicz, L. Brunetto, E. Rossetto

{"title":"WEED CONTROL IN “LL” MAIZE TOLERANT TO GLUFOSINATE-AMMONIUM","authors":"L. Galon, M. R. D. Silva, A. F. D. Silva, André Dalponte Menegat, Renan Pawelkiewicz, L. Brunetto, E. Rossetto","doi":"10.18512/rbms2020v19e1194","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1194","url":null,"abstract":"The glufosinate-ammonium is an herbicide with contact action and, whenused in tolerant LL maize, requires associations with other products to improve the weed control spectrum and increase the residual period in the area. The aim of this work was to evaluate the efficacy and selectivity of glufosinate-ammonium, applied alone and in combination with other herbicides, for weed control in maize crops. The treatments consisted of two strategies. In the first one, the following herbicides were applied in pre-emergence conditions: atrazine, [atrazine + simazine], [atrazine + oil], [atrazine + S-metolachlor], and S-metolachlor; with the subsequent application of glufosinate-ammonium in post-emergence condition of maize. The second application method corresponded to the use of glufosinate-ammonium, alone and combined with nicosulfuron + mesotrione and the other products used in the first strategy, in addition to two control areas, being one weed-infested and the other weed-free. Phytotoxicity on maize and weed control were assessed. Ear insertion height, number of rows per ear, number of grains per row, thousand grain weight and maize yield were determined upon harvesting. The herbicides were effective and did not cause yield loss to the crop. The herbicides applied in combination with glufosinate-ammonium were efficient in regard to weed control and selective to maize.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49207109","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

ANALYSIS OF THE GENETIC DIVERSITY IN MAIZE LANDRACE CULTIVARS FROM NORTHERN RIO GRANDE DO SUL, BRAZIL 巴西里约热内卢北部玉米地方品种遗传多样性分析

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-22 DOI: 10.18512/rbms2020v19e1200

Jéssica Argenta, Jefferson G. Acunha, Bianca Oliveira Machado, Ariel Rizzardo, Noryam Bervian Bispo

引用次数: 0

INFLUENCE OF SEED SIZE ON MAIZE SEEDLINGS WHEN SOWN UNDER WATER DEFICIT CONDITIONS 水分亏缺条件下玉米种子大小对幼苗生长的影响

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-22 DOI: 10.18512/rbms2020v19e1167

D. R. Vilela, Nathalia Rezende Ribeiro, H. O. dos Santos, É. V. RESENDE VON PINHO, R. C. C. Vasconcellos, G. V. Tirelli, I. V. VON PINHO

{"title":"INFLUENCE OF SEED SIZE ON MAIZE SEEDLINGS WHEN SOWN UNDER WATER DEFICIT CONDITIONS","authors":"D. R. Vilela, Nathalia Rezende Ribeiro, H. O. dos Santos, É. V. RESENDE VON PINHO, R. C. C. Vasconcellos, G. V. Tirelli, I. V. VON PINHO","doi":"10.18512/rbms2020v19e1167","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1167","url":null,"abstract":"Seed size may affect the initial development of seedlings, especially under adverse conditions such as water deficit. The objective of this study was to characterize the influence of seed size on traits presented by maize seedlings under contrasting conditions of water availability. The experiment was conducted with a tolerant line (L91), a non-tolerant line (L57), and with the F2 resulting from the cross between those lines. The seeds were classified with the use of round-hole sieves and those retained on sieves of sizes 22, 20 and 18/64” were used. The seeds were sown in trays containing sand and, in order to simulate water deficit, the water retention capacity was adjusted to 10% (stress) and 70% (control). Four replications were used, with 25 seeds per treatment, which were stored in a growth chamber at 25 ºC for 7 days. Then the number of seminal roots, length of root and shoot, and their weights (fresh, dry and total) were evaluated. The seed size directly influences the development of maize seedlings, when subjected to water restriction, regardless of whether they are lines or F2. In this case, the larger-size sieves (22 and 20) were superior when compared with the size 18. In the early stages, the L57 was more tolerant to water restriction when compared with L91.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43517840","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: 0

QUALITY OF SOWING AND DEVELOPMENT OF MAIZE AS A FUNCTION OF BLACK OAT MANAGEMENT METHODS APPLIED IN DIFFERENT PERIODS BEFORE MAIZE SOWING 黑麦在玉米播种前不同时期采用的管理方法对玉米播种质量和发育的影响

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-22 DOI: 10.18512/rbms2020v19e1151

Silvane de Almeida Campos, J. Galvão, Emerson Trogello, Tatiana Pires Barrella, Jeferson Giehl, S. P. Coelho, Luis Paulo Lelis Pereira, M. N. Souza

{"title":"QUALITY OF SOWING AND DEVELOPMENT OF MAIZE AS A FUNCTION OF BLACK OAT MANAGEMENT METHODS APPLIED IN DIFFERENT PERIODS BEFORE MAIZE SOWING","authors":"Silvane de Almeida Campos, J. Galvão, Emerson Trogello, Tatiana Pires Barrella, Jeferson Giehl, S. P. Coelho, Luis Paulo Lelis Pereira, M. N. Souza","doi":"10.18512/rbms2020v19e1151","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1151","url":null,"abstract":"The correct straw management in no-tillage system is necessary and has demonstrated to be an excellent alternative to improve sowing quality. Cover crop management periods may compromise the performance of planters and the productivity of the successor crop. The objective of this study was to evaluate the effect of black oat management methods, carried out in different periods before maize planting, on the quality of sowing and development of the crop. Two experiments were conducted in the municipality of Coimbra, MG: the first in 2013 and the second in 2016. Randomized block design was used in both experiments, in split-plot arrangement (4x3), with four replications. The plots consisted of four black oat management periods (21, 14, 7 and 0 days before sowing) and the subplots consisted of three black oat management methods (desiccated, rolled and cleared). The plants were managed in the flowering stage. The characteristics evaluated were: average, faulty, double and normal spacing between plants; sowing depth; emergence speed index; plant stand; and uniformity of plant development in V5 stage. In both experiments, the desiccated black oat presented lower emergence speed index, plant stand and uniformity of plant development. The mechanical managements of black oat, regardless of the period before maize planting, improve the quality of maize sowing, with significant reduction of faulty and double spacing, and promote proper plant development.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44684504","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

INOVATION AND SPECIALTY MAIZE BREEDING FOR MARKET NICHES IN THE STATE OF SÃO PAULO sÃo保罗州市场利基的创新和特色玉米育种

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-17 DOI: 10.18512/rbms2020v19e1202

M. Paterniani, C. Fachini, Cinthia Souza Rodrigues

{"title":"INOVATION AND SPECIALTY MAIZE BREEDING FOR MARKET NICHES IN THE STATE OF SÃO PAULO","authors":"M. Paterniani, C. Fachini, Cinthia Souza Rodrigues","doi":"10.18512/rbms2020v19e1202","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1202","url":null,"abstract":"Maize is one of the most harvested cereals on the planet. In Brazil, it is the country’s second largest grain production after soybean, with a large portion of production destined for animal feed. During the 2019/2020 harvest, 35% of total maize production was exported, 9.5% was destined for industrial processing and only 1.1% for human consumption. Specialty maize are those grains that are not destined for the dry grain commodities market, but have various other uses and are destined exclusively for human consumption. Specialty maize are also considered as an alternative profit source for farmers. From a plant breeding standpoint, maize is greatest example of success when it comes to the exploitation of heterosis and therefore most of the investment in genetic breeding done by private companies is in the development of simple GMO single-cross hybrids. In today’s market, there are rarely any specialty maize cultivars available, creating a niche for public funded research and development centers to exploit with their conventional type cultivars. This article discusses the relevance of the specialty maize market niches and the role of the Maize Genetic Breeding Program of Instituto Agronomico (IAC) in the development of innovations in São Paulo through the launch of conventional cultivars aimed at small and medium producers and niches of specialty maize.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47627425","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: 4

CHARACTERIZATION OF BROOM SORGHUM ACCESSIONS USING MORPHO-AGRONOMIC DESCRIPTORS 利用形态农艺描述符对扫帚高粱材料进行鉴定

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-17 DOI: 10.18512/rbms2020v19e1166

J. Teixeira, L. D. Pimentel, P.H.H. Salla, E. Biesdorf, Rusthon Magno Cortez dos Santos, Aluizio Borem de Oliveira

引用次数: 0

AGRONOMIC TRAITS EVALUATION IN IRRIGATED SORGHUM IN THE BRAZILIAN SEMI-ARID 巴西半干旱地区灌溉高粱农艺性状评价

Revista Brasileira de Milho e Sorgo Pub Date : 2020-12-17 DOI: 10.18512/rbms2020v19e1179

A. R. Neto, R. D. Santos

{"title":"AGRONOMIC TRAITS EVALUATION IN IRRIGATED SORGHUM IN THE BRAZILIAN SEMI-ARID","authors":"A. R. Neto, R. D. Santos","doi":"10.18512/rbms2020v19e1179","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1179","url":null,"abstract":"Green and dry matter production, along with grain yield and otheragronomic traits, were assessed in 44 sorghum genotypes. Two sets of genotypes were formed based on known plant height, aiming to evaluate green and dry matter production and grain yield, as well as to separate forage and grain sorghum genotypes. The evaluations were performed based on experiments with three replications, being one irrigated (drip system) in Petrolina, State of Pernambuco, and the other rainfed, in Nossa Senhora da Glória, state of Sergipe, Brazil. Sowing dates were July 30, 2016, in Nossa Senhora da Glória; July 13, 2017, and October 24, 2018, in Petrolina; with 117 and 128 days from sowing to harvest, respectively. Expressive forage production was observed in genotypes EP-17 and SF-11, which exceeded 120 t ha-1. BRS 506 produced 108 t ha-1, while 13F03(1141572), P-294, P-288, 2502 x 467, BRS Ponta Negra, and SF-15 presented green matter production ranging from 94 to 98.5 t ha-1. Dry matter production was highly correlated with green matter production, and SF-11 had the best performance of 45.5 t ha-1. The observed plant height was more expressive for forage sorghum genotypes, being this trait highly correlated with the green and dry matter. The best grain yield performance reached 13.4 and 10.3 t ha-1, values observed for 9910032 and BRS Ponta Negra, respectively. The results demonstrate the full adaptability of sorghum to the semi-arid environment and the feasibility to produce roughage and grains under irrigation in the Brazilian semi-arid region.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45344399","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: 0

COMPARISON BETWEEN BIOMETRIC AND ELECTROLYTE LEAKAGE TESTS AS INDICATORS OF MAIZE SEED VIGOR 玉米种子活力指标生物测定法与电解质渗漏法的比较

Revista Brasileira de Milho e Sorgo Pub Date : 2020-11-16 DOI: 10.18512/rbms2020v19e1127

L. C. Pereira, L. V. Correia, David Fernando Posso Suárez, C. Carvalho, A. Braccini

{"title":"COMPARISON BETWEEN BIOMETRIC AND ELECTROLYTE LEAKAGE TESTS AS INDICATORS OF MAIZE SEED VIGOR","authors":"L. C. Pereira, L. V. Correia, David Fernando Posso Suárez, C. Carvalho, A. Braccini","doi":"10.18512/rbms2020v19e1127","DOIUrl":"https://doi.org/10.18512/rbms2020v19e1127","url":null,"abstract":"The objective of this work was to compare the accuracy of seedling tests based on electrolyte release to distinguish different maize seed vigor levels with the accuracy provided by biometric tests for seedling length and biomass. For this purpose, seeds with different vigor levels of the Garra Viptera hybrid had their physiological potential evaluated through tests of germination, accelerated aging, seed electrical conductivity, field emergence, seedling length, seedling dry biomass, seedling electrical conductivity, potassium leakage and membrane injury index. Completely randomized design was used, with four replications, except for the field emergence variable, when the randomized complete block design was adopted. The obtained means were compared by Fisher's LSD test, at 5% probability, and then Pearson’s correlation coefficients were calculated between the tests based on seedling performance and the physiological quality results obtained with the seeds. In addition to their lower sensitivity to istinguish the different vigor levels, the biometric tests (length and biomass) showed values of correlation with field emergence considerably lower than those btained with the membrane permeability tests (seedling electrical conductivity, otassium leakage and membrane injury index). Among the tests based on electrolyte extravasation, the membrane injury index was the most accurate to differentiate maize seed lots in different vigor levels, as well as to estimate the seed emergence in the field.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49618037","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: 0