INFLUENCE OF DELAYED SEEDING ON YIELD, HECTOLITRE WEIGHT AND SEED SIZE OF STUBBLE-SEEDED WINTER WHEAT AND RYE GROWN IN SASKATCHEWAN

1986 ◽  
Vol 66 (3) ◽  
pp. 553-557 ◽  
Author(s):  
D. B. FOWLER
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Agronomic Characters ◽  
Kernel Size ◽  
Seeding Date ◽  
Secale Cereale L ◽  
Sufficient Magnitude ◽  
Moisture Conditions

Winter wheat (Triticum aestivum L.) and rye (Secale cereale L.) were seeded into stubble the first week of September and October on four different years at a total of 11 sites in the central, eastern and northern part of the agricultural region of Saskatchewan. The average response to delayed seeding was a reduction in yield and hectolitre weight for both species. In contrast, date of seeding did not have a large influence on kernel size. A significant environmental effect was observed for all characters measured. Productivity of both wheat and rye was high when moisture conditions were adequate. Average yield of rye was higher and 1000-kernel and hectolitre weight lower than for wheat. Significant first and second order interactions demonstrated that the effects of seeding date, species and environment were not independent. These interactions were of sufficient magnitude to introduce a risk factor which should be taken into consideration when conclusions are drawn on the influence of seeding date on yield and other agronomic characters of stubble-seeded winter cereals.Key words: Triticum aestivum L., Secale cereale L., yield, hectolitre weight, kernel size, seeding date

THE INHERITANCE OF RYE CHROMOSOMES IN EARLY GENERATIONS OF TRITICALE × WHEAT HYBRIDS

1982 ◽  
Vol 24 (3) ◽  
pp. 285-291 ◽  
Author(s):  
C. E. May ◽  
R. Appels
Keyword(s):  
Triticum Aestivum ◽  
Secale Cereale ◽  
Second Generation ◽  
Triticum Aestivum L ◽  
Chromosome Translocation ◽  
Agronomic Characters ◽  
Secale Cereale L ◽  
Wheat Hybrids ◽  
Triticosecale Wittmack

Triticales (× Triticosecale Wittmack) are being employed as a source of rye (Secale cereale L.) chromatin for the introduction of specific agronomic characters into wheat (Triticum aestivum L. em Thell.). The rye chromosomes present in plants of the first and second generations of a backcrossing program have been identified using a radioactive in situ probe which hybridizes to specific sites on the rye chromosomes. We show that homologous pairs of rye chromosomes are present by the second generation which should thereby ensure their eventual substitution. Furthermore, rye telosomes and a wheat-rye chromosome translocation involving 5RL were also observed as possibly useful modifications of the rye chromosomes in this breeding program.

HAY AND PASTURE YIELDS OF FALL- AND SPRING-SEEDED WINTER WHEAT AND FALL RYE

1988 ◽  
Vol 68 (2) ◽  
pp. 519-522
Author(s):  
B. BERKENKAMP ◽  
J. MEERES
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Secale Cereale L ◽  
Forage Yields

The forage yields of winter wheat (Triticum aestivum L.) and fall rye (Secale cereale L.) when seeded on two dates in the fall and one in the spring were compared under simulated hay and pasture systems. Winter wheat produced higher total yields, but fall rye reached spring pasture and hay maturities 1 and 2 wk earlier, respectively, than winter wheat. When seeded in the spring, both winter wheat and fall rye produced more hay and pasture than when seeded in the fall, and there was a trend toward higher production when seeded in August than September. The hay harvests were more productive than simulated pasture for all systems.Key words: Yield, forage, hay, pasture, winter wheat, fall rye

EFFECTS OF TEMPERATURE ON DEHARDENING AND REHARDENING OF WINTER CEREALS

1976 ◽  
Vol 56 (3) ◽  
pp. 673-678 ◽  
Author(s):  
L. V. GUSTA ◽  
D. B. FOWLER
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Winter Rye ◽  
High Positive Correlation ◽  
Winter Cereals ◽  
Short Period ◽  
Secale Cereale L ◽  
Effects Of Temperature

Cold-hardened crowns of winter wheat (Triticum aestivum L.) and a winter rye (Secale cereale L.) readily dehardened upon exposure to warm temperatures. Crowns dehardened at a faster rate at 20 C than at 10 and 15 C. Dehardened plants were capable of rehardening in a short period of time upon exposure to cold-acclimating conditions. In all the dehardening studies, there was a high positive correlation between cold survival and water content of the crowns. Plants collected in the fall and stored at −2.5 C maintained the same level of hardiness for 17 wk.

DEHARDENING AND REHARDENING OF SPRING-COLLECTED WINTER WHEATS AND A WINTER RYE

1976 ◽  
Vol 56 (4) ◽  
pp. 775-779 ◽  
Author(s):  
L. V. GUSTA ◽  
D. B. FOWLER
Keyword(s):  
Triticum Aestivum ◽  
Moisture Content ◽  
Winter Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Winter Rye ◽  
Positive Correlation ◽  
Exposure To Cold ◽  
Secale Cereale L

Crowns of winter wheat (Triticum aestivum L.) and rye (Secale cereale L.) collected early in the spring readily dehardened upon exposure to 15 C. After 6 days at 15 C, the crowns of both species were completely dehardened. Partially dehardened crowns were unable to reharden upon exposure to cold-acclimating conditions and continued to lose hardiness when stored at − 2.5 C. There was a positive correlation between level of dehardening and crown moisture content. However, this relationship began to break down when attempts were made to reharden partially dehardened plants.

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+.

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