Growth, agronomic characteristics and nutritional attributes of sorghum ( Sorghum bicolor ) genotypes resistant to ALS inhibitor herbicides

2021 ◽  
Author(s):  
Dilooshi K. Weerasooriya ◽  
Ananda Y. Bandara ◽  
Floyd Dowell ◽  
Tesfaye T. Tesso
Keyword(s):  
Sorghum Bicolor ◽  
Agronomic Characteristics ◽  
Als Inhibitor

Comparison of ALS inhibitor resistance and allelic interactions in shattercane accessions

Weed Science ◽  
1999 ◽  
Vol 47 (3) ◽  
pp. 275-281 ◽  
Author(s):  
Chad D. Lee ◽  
Alex R. Martin ◽  
Fred W. Roeth ◽  
Blaine E. Johnson ◽  
Donald J. Lee
Keyword(s):  
Sorghum Bicolor ◽  
Acetolactate Synthase ◽  
Cross Resistance ◽  
Wild Type ◽  
Forage Sorghum ◽  
South Central ◽  
Inhibitor Resistance ◽  
Als Inhibitor

Reports of unacceptable shattercane (Sorghum bicolor) control with acetolactate synthase (ALS)-inhibiting herbicides prompted the investigation of 29 fields in central and south-central Nebraska for ALS-resistant (ALSr) shattercane. These fields were located in three distinct geographical areas designated C, G, and P. Shattercane from 13 fields spanning all three areas was resistant to 80 g ai ha−1(2 X field rate) primisulfuron. Accessions C and G were more resistant than accession P to primisulfuron and nicosulfuron. Accessions C and G were susceptible to imazethapyr, whereas accession P was resistant. The ALS resistance was associated with alterations in the ALS enzyme. Primisulfuron I50values for ALS from ROX (forage sorghum), C, G, and P were 7, 8,510, 8,870, and 714 nM, respectively; nicosulfuron I50values were 647, 4,110, 4,070, and 1,460 nM, respectively; and imazethapyr I50values were 5,440, 13,100, 11,800, and 51,700 nM, respectively. Based on cross-resistance and enzyme sensitivities, at least two biotypes are represented in the three accessions of ALSr shattercane. Shattercane individuals from accessions C, G, and P were intercrossed to determine if the ALSr genes in each of the accessions were at independent loci. All the F2populations were resistant to 80 g ai ha−1primisulfuron, suggesting that the ALSr alleles in the three accessions are at the same locus or possibly linked loci. When the C, G, and P accessions were crossed with the wild type (WT), comparisons between the F1, susceptible, and resistant populations showed that primisulfuron resistance was expressed as a dominant, partially dominant, and additive trait for the C, G, and P accessions, respectively. The differences in ALSr allelic interactions indicate that primisulfuron resistance developed independently in each of the three accessions.

Evaluation of Technological Characteristics of Some Varieties of Sorghum (Sorghum Bicolor) Cultivated in the Soudanosahelian Zone of Cameroon

2008 ◽  
Vol 4 (1) ◽  
Author(s):  
Djoulde Darman Roger ◽  
Kenga Richard ◽  
Etoa François-Xavier
Keyword(s):  
Sorghum Bicolor ◽  
Kernel Weight ◽  
Local Varieties ◽  
Improved Varieties ◽  
Agronomic Characteristics ◽  
The North ◽  
Technological Characteristics ◽  
Very High

Some varieties of sorghum (Sorgum bicolor) available in the North of Cameroon have been characterized for to their ability to meet consumers and industries requirements. Local varieties of sorghum, namely ``Zouaye," ``Djigari," ``Damougari" have been compared to four selected varieties with good agronomic characteristics (S35, CS-210, CS-95, CS-54). Results indicate that the varieties CS-95, CS-54, and ``Madjeru" present very high percentages of cut brown grains with a variation from 48% to 87%. The variety ``Dmougari" seems harder than the others with a PSI of 19±2.6. Varieties CS-210 and CS-95 appear to be most tender with successive PSI of 11.8±5.21 and 12.2±1.2. All local varieties (Madjeru, Zouaye, Damougari, Djigari) have shown a 1000-kernel weight ranging between 21.9±2.6g and 25.5±1.5g, whereas selected varieties (S35, CS-210, CS-95, CS-54) present 1000-kernel weight binds between 15.43 ±2.5g and 19.31±5.21 g. The majority of the studied grains present an index of vitrosity between 1.6 and 4.85, except CS-210, Madjeru, Djigari which are semi-vitreous (with indices of vitrosity ranging between 3 and 4. Dihurin content of all varieties ranges from 108±15 to 225±23 (ppm). The colour of the grain shows that the improved varieties present yellow blades and yellow ivory colours, whereas the local varieties are brown and red.

Characterization and expression of dehydrins in water-stressed Sorghum bicolor

1997 ◽  
Vol 99 (1) ◽  
pp. 144-152 ◽  
Author(s):  
Andrew J. Wood ◽  
Peter B. Goldsbrough
Keyword(s):  
Sorghum Bicolor

Consórcio palma-sorgo sob lâminas de irrigação: balanço de água no solo e coeficientes da cultura

Agrometeoros ◽  
2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Cleber Pereira Alves ◽  
Thieres George Freire Silva ◽  
Hygor Kristoph Muniz Nunes Alves ◽  
Alexandre Maniçoba da Rosa Ferraz Jardim ◽  
Luciana Sandra Bastos de Souza ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Sorghum Bicolor L

Objetivou-se neste estudo quantificar a evapotranspiração real (ETr) e máxima da cultura (ETc) e os coeficientes da cultura (Kc) do consórcio palma-sorgo. O experimento foi conduzido no município de Serra Talhada, PE. O delineamento usado foi em blocos ao acaso, envolvendo cinco lâminas de irrigação (0, 25, 50, 75 e 100% da evapotranspiração de referência - ETo), sob sistema de cultivo consorciado palma-sorgo. O clone de palma forrageira utilizado foi a Orelha de Elefante Mexicana (Opuntia stricta (Haw.) Haw.) e o cultivar de sorgo, Sorghum bicolor (L.) Moench, a SF 15. O sorgo foi conduzido durante dois ciclos (planta e rebrota) compreendidos em um ciclo anual da palma. A quantificação da ETr e da ETc foi realizada através do resíduo do balanço de água no solo (BAS) a cada 14 dias, com a mensuração dos componentes hidrodinâmicos. As determinações da ETc e do Kc foram realizadas com base na lâmina de 75% da ETo. Os componentes do BAS foram submetidos à análise de regressão, sendo testados modelos polinomiais. Com exceção da variação do armazenamento de água no solo, os demais componentes hidrodinâmicos do solo cultivado sob sistema consorciado palma-sorgo respondem linearmente ao aumento de lâminas de irrigação. A evapotranspiração média diária do consórcio palma-sorgo é igual a 3,0 mm dia-1, independentemente da lâmina de irrigação. Os coeficientes do consórcio palma-sorgo são iguais a 0,40, 0,68, 0,90 e 0,52 durante as fases I, II, III e IV de emissão de cladódios.

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