scholarly journals WHEAT QUALITY EVALUATION. 1. ACCURACY AND PRECISION OF PREDICTION TESTS

1975 ◽  
Vol 55 (1) ◽  
pp. 241-249 ◽  
Author(s):  
I. A. DE LA ROCHE ◽  
D. B. FOWLER

Several statistics were utilized to evaluate the precision of 28 prediction tests of bread and pastry quality for a population consisting of triticale (Triticum durum Desf. × Secale cereale L.), durum (T. durum Desf.) and common wheats (T. aestivum, L.). Low repeatabilities for the traditional measurements of quality, loaf volume and cookie thickness, and highly significant replicate effects for a majority of tests highlighted the results of these analyses. Highly significant correlations were found among procedural modifications of several quality measurements indicating that, for the range considered, a similar ranking of material can be expected for related quality tests. A significant effect of mill setting and a significant mill setting × cultivar interaction were demonstrated for a number of quality measurements made on flour, indicating the limitation of a single milling for the evaluation of potential bread and pastry wheats.

Bragantia ◽  
1984 ◽  
Vol 43 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Carlos Eduardo de Oliveira Camargo ◽  
João Carlos Fenício

Foram estudados sete cultivares de trigo (Triticum aestivum L. ), um de trigo duro (Triticum durum L.), sete de triticale e dois de centeio (Secale cereale L.), em soluções nutritivas contendo quatro níveis de alumínio tóxico. A tolerância foi medida pela capacidade de as raízes primárias continuarem a crescer em soluçâo sem alumínio após um período de 48 horas em solução contendo uma concentração conhecida de alumínio. A temperatura de 28 ± 1 °C foi mantida constante nas soluções durante o experimento. Os cultivares de centeio, Goyarowo e Branco, foram tolerantes a 20mg/ litro de Al3+; os de trigo, Siete Cerros, Tobari-66 e Cocorit, foram sensíveis a 5mg/lítro de alumínio, porém BH-1146, IAC-5, BR-1 e IAC-18 foram tolerantes e, IAC-17, moderadamente tolerante a essa concentração de alumínio; os cultivares de triticale, PFT-763, TCEP-77142, PFT-764, TCEP-75709, Cynamon, TCEP-77138 e TCEP-77136, foram tolerantes a 5mg/litro de Al3+. Todos os cultivares de trigo e triticale foram sensíveis a 10mg/litro de Al3+.


1978 ◽  
Vol 20 (3) ◽  
pp. 389-398 ◽  
Author(s):  
Tetsuo Sasakuma ◽  
S. S. Maan

Triticum durum Desf. selection 56-1 (2n = 28,AABB) genomes were introduced into the cytoplasms of six species of Triticum, 14 of Aegilops, and one each of Secale and Haynaldia by the backcross method. Of the 22 alloplasmic lines, 14 were completely male sterile, four were partially fertile, and the remaining four, having cytoplasms of T. dicoccoides Körn, Ae. kotschyi Boiss., Ae. variabilis, Eig. or H. villosa L., were of normal fertility. Eleven of these lines headed late and 14 had lower plant height than the control euplasmic T. durum. The 14 male-sterile lines were crossed with five R-lines derived from crosses involving T. nudiglumis Nabalek and T. durum, and male-fertility restoration in F1 hybrids was examined. All five R-lines restored male fertility to six of the male-sterile lines having cytoplasms of Ae. speltoides Tausch., Ae. bicornis Forsk., T. nudiglumis, T. araraticum Jakubz., T. timopheevi Zhuk., or T. zhukovskyi Men. &Er. The male fertility of the alloplasmic line having rye (secale cereale L.) cytoplasm was completely restored by RE 5 and partially by RE 2. Also, RE 5 restored plant vigor to durum plants having rye cytoplasm. None of the five R-lines restored male fertility or plant vigor to any of the six male-sterile lines having cytoplasms of T. boeoticum Boiss., Ae. caudata L., Ae. umbellulata Zhuk., Ae. heldreichii Holzm., Ae. sharonensis Eig., or Ae. triaristata Willd. In general, F2 data from crosses involving four of the male-sterile lines and five R-lines indicated that male fertility restoration was simply inherited.


2018 ◽  
Vol 16 (S1) ◽  
pp. S273-S283
Author(s):  
Z. Mami-Soualem ◽  
N. Brixi ◽  
C. Beghdad ◽  
M. Belarbi

Le changement des habitudes alimentaires au cours de ces dernières années a abouti à l’apparition des maladies dites de civilisation, parmi elles le diabète sucré. Des approches diétothérapeutiques privilégient la consommation des produits céréaliers sous la forme la plus complète possible. Ce travail a pour but de tester l’efficacité des régimes expérimentaux préparés à base des grains complets des deux céréales, le sorgho (Sorghum bicolor L.) et le seigle (Secale cereale L.), sur la correction de l’hyperglycémie et des marqueurs du stress oxydant associés au diabète chez le rat mâle Wistar. Les résultats montrent que les rats diabétiques, soumis au régime seigle pendant quatre semaines, présentent une diminution significative de la glycémie qui atteint les 53,95 % à la fin de l’expérimentation, ce qui fait que leur taux en glycémie se rapproche de celui des normoglycémiques. Le sorgho blanc présente, d’une part, une diminution significative de la peroxydation lipidique intracellulaire et, d’autre part, une augmentation de l’activité de la glutathion peroxydase, la glutathion réductase ainsi que la vitamine C. Ces approches méthodologiques peuvent, en améliorant la connaissance de l’importance des céréales (fibres alimentaires solubles et des polyphénols) dans l’évolution du diabète, aboutir à des recommandations et à une éducation nutritionnelle du diabétique.


Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 1013 ◽  
Author(s):  
Jarosław Domański ◽  
Olga Marchut-Mikołajczyk ◽  
Weronika Cieciura-Włoch ◽  
Piotr Patelski ◽  
Urszula Dziekońska-Kubczak ◽  
...  

The study describes sulfuric acid pretreatment of straw from Secale cereale L. (rye straw) to evaluate the effect of acid concentration and treatment time on the efficiency of biofuel production. The highest ethanol yield occurred after the enzyme treatment at a dose of 15 filter paper unit (FPU) per gram of rye straw (subjected to chemical hydrolysis with 2% sulfuric acid (SA) at 121 °C for 1 h) during 120 h. Anaerobic digestion of rye straw treated with 10% SA at 121 °C during 1 h allowed to obtain 347.42 L methane/kg volatile solids (VS). Most hydrogen was released during dark fermentation of rye straw after pretreatment of 2% SA, 121 °C, 1 h and 1% SA, 121 °C, 2 h—131.99 and 134.71 L hydrogen/kg VS, respectively. If the rye straw produced in the European Union were processed into methane, hydrogen, ethanol, the annual electricity production in 2018 could reach 9.87 TWh (terawatt-hours), 1.16 TWh, and 0.60 TWh, respectively.


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