scholarly journals STUDIES ON THE QUALITY OF UPLAND RICE. : II On the Germination of Glutinous Hulled Upland Rice Grains of Different Transparency.

1952 ◽  
Vol 20 (3-4) ◽  
pp. 311-312
Author(s):  
E. KAWAHARA ◽  
T. MOTOGI
Keyword(s):  
Upland Rice ◽  
Rice Grains

scholarly journals Influência do tempo de armazenamento na qualidade de grãos de arroz de terras altas / Influence of storage time on the quality of upland rice grains

2021 ◽  
Vol 7 (8) ◽  
pp. 81017-81022
Author(s):  
Camila Soares Cardoso da Silva ◽  
Leandro Vilela Reis ◽  
Amanda Mendes de Moura ◽  
Yasmin Vasques Berchembrock ◽  
Antonio Rosário Neto ◽  
...  
Keyword(s):  
Storage Time ◽  
Upland Rice ◽  
Rice Grains

scholarly journals Etude de l’effet de Cercospora oryzae Miyake sur la qualite des grains du riz et le developpement de la ternissure

2020 ◽  
Vol 14 (2) ◽  
pp. 440-451
Author(s):  
Hervé B. Soura ◽  
Simplice L. Gnancadja-Andre ◽  
Martine Zandjanakou-Tachin ◽  
Christophe Gandonou ◽  
Farid A.K. Baba-Moussa
Keyword(s):  
Germination Rate ◽  
Research Work ◽  
Detailed Knowledge ◽  
Large Contribution ◽  
Mots Clés ◽  
Rice Grains ◽  
Teneur En Eau ◽  
Agroecological Zones ◽  
Conservation Marketing

La cercosporiose due à Cercospora oryzae est un champignon pouvant causer des pertes allant jusqu'à 60%. Elle est de plus en plus fréquente en Afrique de l'Ouest. Les premières prospections réalisées au sud du Bénin ont indiqué que Cercospora oryzae a une contribution large puisqu’elle a affectée 85% des champs de riz des trois zones agroécologiques du sud Bénin. Cette étude vise principalement à contribuer à la connaissance détaillée des effets de Cercospora oryzae sur les grains afin d’optimiser la conservation, la commercialisation et la production. Elle a consistée a : i) évaluer les effets de Cercospora oryzae sur le pouvoir germinatif des grains, ii) évaluer les effets de Cercospora oryzae sur le développement de la ternissure. L’étude a combiné des outils physiologiques et phytiatriques. Au terme des travaux, les variétés testées ont enregistré une bonne teneur en eau pour un minimum de 6%, ainsi qu’un bon taux de germination. A la fin de l’étude nous avons pu constater que Cerocpora oryzae entrainait une baisse du pouvoir germinatif des grains, une altération de la graine blanche et une décoloration de l’enveloppe. Ces résultats constituent une étape d’un travail de recherche approfondi sur la caractérisation (agronomique et génétique) de Cercospora oryzae afin de proposer des méthodes de luttes. Mots clés : Pouvoir germinatif, décoloration, altération, Cercospora oryzae, riz.   English Title: Study of the effect of Cercospora oryzae Miyake on the quality of rice grains and the development of tarnishSigatoka caused by Cercospora oryzae is a fungus that can cause losses up to 60%. It is more and more frequent in West Africa. The first surveys carried out in the south of Benin indicated that Cercospora oryzae has a large contribution since affected 85% of the rice fields of the three agroecological zones of southern Benin. The main objective of this study is to contribute to detailed knowledge of the effects of Cercospora oryzae on grains in order to optimize conservation, marketing and production. It consisted in: i) evaluating the effects of Cercospora oryzae on the germination power of the grains, ii) evaluating the effects of Cercospora oryzae on the development of tarnish. The study combined physiological and phytiatric tools. At the end of the work, the varieties tested recorded a good water content for a minimum of 6%, as well as a good germination rate. At the end of the study we could see that Cerocpora oryzae did not cause a drop in the germinative power of the grains but rather resulted in an alteration of the white seed and a discoloration of the envelope. These results constitute a stage of an in-depth research work on the characterization (agronomic and genetic) of Cercospora oryzae in order to propose methods of struggle.Keywords: Germination, discoloration, deterioration, Cercospora oryzae, rice.  

scholarly journals Grain quality of upland rice cultivars in response to cropping systems in the Brazilian tropical savanna

2008 ◽  
Vol 65 (5) ◽  
pp. 468-473 ◽  
Author(s):  
Carlos Alexandre Costa Crusciol ◽  
Orivaldo Arf ◽  
Rogério Peres Soratto ◽  
Gustavo Pavan Mateus
Keyword(s):  
Water Availability ◽  
Upland Rice ◽  
Irrigation System ◽  
Cropping Systems ◽  
Block Design ◽  
Sprinkler Irrigation ◽  
Rice Cultivars ◽  
Nutrient Contents ◽  
Rice Milling

The industrial quality of grain is an important parameter to determine the commercial value of rice and can be influenced by water availability and type of cultivar. The present study aimed to evaluate the milling yield as well as the protein and nutrient contents of polished grains originated from two upland rice cultivars grown under rainfed and sprinkler-irrigated conditions. A randomized block design was used in a split-plot arrangement with eight replicates. Plots consisted of two cropping systems (rainfed and sprinkler-irrigated) with subplots consisting of two cultivars recommended for upland ecosystems (IAC 201 and Carajás). The sprinkler irrigation system increased upland rice milling (8.0%) and head rice yield (23.7%), for years with hot and dry weather spells occurring during the reproductive and maturation stages. Under conditions of lower water availability, the Carajás cultivar showed a milled yield value 5.1% higher than that of cultivar IAC 201. Lower water availability provided increases in protein, N, P, Ca, Mg, Fe, and Zn contents but reductions in S and Cu in the polished grains. Cultivars IAC 201 and Carajás had similar nutrient contents in the polished grains.

Evaluation of Quality of Rice Grains by Photoacoustic Imaging

2005 ◽  
Vol 44 (6B) ◽  
pp. 4480-4481 ◽  
Author(s):  
Manabu Suzuki ◽  
Katsuhiko Miyamoto ◽  
Tsutomu Hoshimiya
Keyword(s):  
Photoacoustic Imaging ◽  
Rice Grains

scholarly journals Protein Content of Upland Rice Grains

1970 ◽  
Vol 23 (2) ◽  
pp. 94-97
Author(s):  
Hirokadzu Taira
Keyword(s):  
Protein Content ◽  
Upland Rice ◽  
Rice Grains

scholarly journals Rice Quality Analysis and Classification Using Image Processing Techniques

2021 ◽  
Vol 10 (6) ◽  
pp. 79-82
Author(s):  
Vijay Sonawane ◽  
Nikhil Gaikwad ◽  
Hrushikesh Mandekar ◽  
Kishore Baradkar ◽  
Chetan Gunjal
Keyword(s):  
Image Processing ◽  
Quality Analysis ◽  
World Population ◽  
Rice Grain ◽  
Rice Grains ◽  
Unique Shape ◽  
Good For ◽  
Phosphorus And Potassium ◽  
Processing Techniques

More than half the world's people consume rice every day and fulfills over 21% calorific requirement of world population. It is considered the whole grain which is rich in fiber and it contains 80 percent with protein, phosphorus, and potassium. There are hundreds of different varieties of rice and each rice grain has a unique shape, texture, and flavor that make it just right for certain dishes. The quality of rice between various types has different standards. Therefore, you must select the best quality rice because rice with best quality is not only good for consumption but also good for health. Analyzing grain sample manually is a tedious task and also time consuming. The paper presents the solution to analysis and grading of rice grains using image processing techniques. Image reduction, image enhancement, and image increment, object recognition in spatial domain is applied on grain by grain of different samples of rice to determine its size, color and quality as whole to grade the grain of rice. We find the endpoints of each grains and after we measure the length and breadth of rice grains.

scholarly journals EFFECT OF HULLING MACHINES ON HULLING CHARACTERISTICS AND QUALITY OF RICE GRAINS

2018 ◽  
Vol 35 (1) ◽  
pp. 259-274
Author(s):  
Mohamed Yehia ◽  
A. Katab
Keyword(s):  
Rice Grains

scholarly journals QUALIDADE INDUSTRIAL DE GRÃOS DE ARROZ DECORRENTE DA SUPRESSÃO DA IRRIGAÇÃO E UMIDADE DE COLHEITA

Irriga ◽  
2015 ◽  
Vol 20 (3) ◽  
pp. 587-601 ◽  
Author(s):  
GUILHERME PILAR LONDERO ◽  
Enio Marchesan ◽  
Evandro Parisotto ◽  
Lucas Lopes Coelho ◽  
Camille Flores Soares ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Moisture Content ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Irrigated Rice ◽  
Milling Quality ◽  
Rice Grains ◽  
Santa Maria ◽  
E Mail

QUALIDADE INDUSTRIAL DE GRÃOS DE ARROZ DECORRENTE DA SUPRESSÃO DA IRRIGAÇÃO E UMIDADE DE COLHEITA  GUILHERME PILAR LONDERO¹; ENIO MARCHESAN²; EVANDRO PARISOTTO³; LUCAS LOPES COELHO4, BRUNO BEHENCK ARAMBURU4; CAMILLE SOARES FLORES4 E ANELISE LENCINA DA SILVA4 1 Mestrando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: [email protected];2 Professor Titular do Departamento de Fitotecnia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: [email protected];3 Desenvolvimento de Mercado, Ricetec Sementes Ltda., Rua 18 de novembro nº 341, 90240-040, Porto Alegre/RS, e-mail: [email protected]. 4 Graduando em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mails: [email protected]; [email protected]; [email protected]; [email protected].  1           RESUMO A qualidade dos grãos do arroz irrigado é fator fundamental para sua comercialização. Neste sentido, objetivou-se avaliar, com a realização do presente estudo, a qualidade industrial de grãos de dois cultivares de arroz irrigado em função de épocas de supressão da irrigação e graus de umidade à colheita. O experimento foi realizado nas safras 2011/12 e 2012/13 na área didático experimental de várzea da Universidade Federal de Santa Maria, Rio Grande do Sul. Os tratamentos foram compostos de: dois cultivares: o híbrido INOV CL e o cultivar Puitá INTA CL; quatro épocas de supressão da irrigação: 5, 15, 25 e 35 dias após a antese (DAA); e cinco graus de umidade média dos grãos na colheita: 24, 22, 20, 18 e 16%. O delineamento experimental foi de blocos ao acaso com quatro repetições por tratamento. O cultivar Puitá INTA CL apresenta superior qualidade em relação a grãos inteiros, vítreos, gessados e opacos ao híbrido INOV CL. A umidade adequada dos grãos à colheita para ambos cultivares ocorre no intervalo de 24 a 20%. A supressão de irrigação não interfere na qualidade de grãos inteiros, vítreos, opacos e gessados. Palavras-Chave: beneficiamento; grão inteiro; grão gessado; grão opaco; Oryza sativa L.  LONDERO, G. P.¹; MARCHESAN, E.²; PARISOTTO, E.³; COELHO, L. L.4; ARAMBURU, B. B.4; FLORES, C. S.4; da SILVA, A. L. 4INDUSTRIAL QUALITY OF RICE GRAINS ARISING FROM THE WITHHOLDING OF IRRIGATION AND HARVEST MOISTURE  2           ABSTRACT Quality of irrigated rice grains is critical for their marketing. In this context, the study aimed to evaluate the industrial quality of two irrigated rice cultivars as a function of two times of irrigation withholding,   and moisture content at harvest.  The experiment was conducted during the 2011/12 and 2012/13 seasons in the experimental floodplain of the Federal University of Santa Maria, Rio Grande do Sul state, Brazil. The treatments consisted of  two cultivars:   hybrid INOV CL and  Puitá INTA CL ; four irrigation withholding times:  5, 15, 25 and 35 days after anthesis (DAA); and five levels of mean grain moisture   at harvest; 24, 22, 20, 18 and 16 %. The experimental design was randomized blocks with four replicates per treatment.   The cv. Puitá INTA CL  presented higher quality concerning milling, translucency, opacity and chalky grains than the cv. hybrid INOV CL.  Suitable moisture content of grains at harvest for both cultivars is at the range of 24 to 20%.  Irrigation withholding did not affect milling quality, translucency, opacity and chalky grains. Keywords: Processing, milling quality, chalky grain, opacity, Oryza sativa. 

scholarly journals On the Temporary Storage of High-Moisture Rough Rice : II. Effect of harvesting dates on the quality of rough rice grains during the storage

1969 ◽  
Vol 38 (3) ◽  
pp. 402-407
Author(s):  
Norimitsu ISIKURA ◽  
Yoichiro MASUO ◽  
Isao ENDO ◽  
Shinjiro CHIKUBU
Keyword(s):  
High Moisture ◽  
Rice Grains ◽  
Temporary Storage ◽  
Rough Rice
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