PARENTAL EFFECTS ON CHROMOSOME DOUBLING FOR THE PRODUCTION OF PRIMARY TRITICALE

1981 ◽  
Vol 23 (2) ◽  
pp. 191-193 ◽  
Author(s):  
D. G. Tanner
Keyword(s):  
Triticum Aestivum ◽  
Secale Cereale ◽  
Hexaploid Wheat ◽  
Chromosome Doubling ◽  
Colchicine Treatment ◽  
Triticum Aestivum L ◽  
Intergeneric Hybridization ◽  
Parental Effects ◽  
Secale Cereale L ◽  
Independent Effects

Intergeneric hybridization between six hexaploid wheat (Triticum aestivum L.) cultivars and five inbred rye (Secale cereale L.) lines was used to study the influence of parental genotypes upon chromosome doubling after colchicine treatment. Significant differences were attributed to independent effects of the wheat and rye parents. Self-fertility of the derived amphidiploids was positively correlated with colchicine responsiveness.

TRANSFER OF CORNERSTONE MALE-STERILITY MUTANT TO TETRAPLOID WHEAT AND HEXAPLOID AND OCTOPLOID TRITICALES

1981 ◽  
Vol 23 (3) ◽  
pp. 493-496 ◽  
Author(s):  
M. A. Hossain ◽  
C. J. Driscoll
Keyword(s):  
Triticum Aestivum ◽  
Male Sterility ◽  
Secale Cereale ◽  
Tetraploid Wheat ◽  
Colchicine Treatment ◽  
Triticum Aestivum L ◽  
Male Sterile ◽  
Ploidy Levels ◽  
Secale Cereale L ◽  
Γ Ray

A γ-ray induced male-sterility mutant on chromosome 4A of Triticum aestivum L. (Cornerstone mutant ms1c) was transferred to T. durum Desf. by backcrossing. Selfed heterozygotes of T. durum produced fewer male-sterile plants than those of T. aestivum. Male-sterile plants of T. durum and T. aestivum were crossed with diploid rye (Secale cereale L.) and fertile hexaploid and octoploid triticales were obtained following colchicine treatment of the F1's. Thus, rye is able to restore fertility at both of these ploidy levels.

The changes in the reproductive barrier between hexaploid wheat (Triticum aestivum L.) and rye (Secale cereale L.): different states lead to different fates

Planta ◽  
2017 ◽  
Vol 246 (3) ◽  
pp. 377-388 ◽  
Author(s):  
Natalia Tikhenko ◽  
Twan Rutten ◽  
Angelika Senula ◽  
Myroslava Rubtsova ◽  
E. R. Joachim Keller ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Secale Cereale ◽  
Hexaploid Wheat ◽  
Triticum Aestivum L ◽  
Reproductive Barrier ◽  
Secale Cereale L

LOW-TEMPERATURE TOLERANCE OF OCTOPLOID TRITICALE AND ITS PARENTAL SPECIES GROWN IN SOUTHERN ONTARIO

1984 ◽  
Vol 64 (3) ◽  
pp. 451-456 ◽  
Author(s):  
V. W. POYSA ◽  
C. J. KNOBLAUCH ◽  
B. D. McKERSIE ◽  
E. REINBERGS
Keyword(s):  
Triticum Aestivum ◽  
Low Temperature ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Temperature Tolerance ◽  
Intergeneric Hybridization ◽  
Southern Ontario ◽  
Low Temperature Tolerance ◽  
Secale Cereale L ◽  
Octoploid Triticale

The low-temperature tolerance of 25 octoploid triticale (× Triticosecale Wittmack) lines and their five wheat (Triticum aestivum L. em. Thell) and five rye (Secale cereale L.) parental cultivars was evaluated in controlled freezing tests following field acclimation in southern Ontario. The average LT50 rating of triticale was 1–2 °C inferior to that of wheat and rye. Triticale synthesized from very hardy rye did not have better levels of hardiness than triticale from less hardy rye. The raw primary octoploid triticale lines were generally less cold tolerant than their hardy wheat parents. The LT50 rating of triticale was not significantly correlated with the LT50 rating of either the wheat or the rye parent.Key words: Triticum aestivum L. em. Thell., Secale cereale L., cold hardiness, intergeneric hybridization

scholarly journals Tolerância de cultivares de trigo, triticale e centeio em diferentes níveis de alumínio em solução nutritiva

Bragantia ◽  
1984 ◽  
Vol 43 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Carlos Eduardo de Oliveira Camargo ◽  
João Carlos Fenício
Keyword(s):  
Triticum Aestivum ◽  
Secale Cereale ◽  
Triticum Durum ◽  
Triticum Aestivum L ◽  
Secale Cereale L

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+.

Cold acclimation inhibits CO2-dependent stimulation of photosynthesis in spring wheat and spring rye

Botany ◽  
2012 ◽  
Vol 90 (6) ◽  
pp. 433-444 ◽  
Author(s):  
Keshav Dahal ◽  
Khalil Kane ◽  
Fathey Sarhan ◽  
Bernard Grodzinski ◽  
Norman P.A. Hüner
Keyword(s):  
Triticum Aestivum ◽  
Cold Acclimation ◽  
Temperature Sensitivity ◽  
Spring Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Short Term ◽  
Short Term Exposure ◽  
Secale Cereale L ◽  
Stimulation Of

We assessed the effects of short-term elevated CO2 on the light-saturated rates of photosynthesis (Asat) of spring (‘SR4A’, ‘Katepwa’) and winter (‘Musketeer’, ‘Norstar’) wheat ( Triticum aestivum L.) and rye ( Secale cereale L.) cultivars grown at ambient CO2 (380 µmol C·mol–1) at either 20/16 °C (nonacclimated, NA) or 5/5 °C (cold acclimated, CA). In spring wheat–rye, cold acclimation decreased CO2-stimulation of Asat by 45%–60% relative to NA controls following a short-term (80 h) shift of plants from ambient to elevated CO2 (700 µmol C·mol–1). In contrast, in winter wheat–rye, cold acclimation enhanced CO2-stimulation of Asat by 15%–35% relative to NA controls upon a shift to elevated CO2. The stimulation observed for CA spring cultivars was about 60% less than that of CA winter cultivars. We conclude that a short-term exposure of spring cultivars to elevated CO2 cannot compensate for the cold acclimation-induced inhibition of Asat. Cold acclimation of spring cultivars appeared to exacerbate Rubisco CO2 substrate limitations present under ambient CO2. Furthermore, CA spring cultivars were unable to adjust their short-term temperature sensitivity of Asat under elevated CO2 compared with the winter cultivars.

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