CONTROL OF VARIATION WITHIN PLOTS IN WINTER SURVIVAL TRIALS OF WHEAT AND RYE

1964 ◽  
Vol 44 (2) ◽  
pp. 167-169 ◽  
Author(s):  
M. N. Grant
Keyword(s):  
Winter Wheat ◽  
Winter Survival ◽  
Winter Rye

Variations in survival of winter wheat and winter rye were controlled among rows within plots by applying the principle of uniform packing through use of the Smith–Bergen Plotmaster seeder. Thus a source of serious bias in varietal comparisons for winterhardiness was largely eliminated.

POTENTIAL FOR WINTER WHEAT PRODUCTION IN SASKATCHEWAN

1976 ◽  
Vol 56 (1) ◽  
pp. 45-50 ◽  
Author(s):  
D. B. FOWLER ◽  
L. V. GUSTA ◽  
K. E. BOWREN ◽  
W. L. CROWLE ◽  
E. D. MALLOUGH ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Cold Hardiness ◽  
Winter Survival ◽  
Winter Rye ◽  
Wheat Cultivars ◽  
Winter Cereal ◽  
Brown Soil ◽  
Soil Zone ◽  
Winter Wheat Cultivars ◽  
Gray Soil

Winter cereal trials consisting of 10 cultivars representing cold hardiness potentials ranging up to the hardiness of Frontier winter rye were seeded at test sites throughout Saskatchewan for 2 yr. At most sites in the Brown soil zone only winter rye survived without extensive winter damage. At sites in the Black and Gray soil zones, winter survival was sufficient to provide agronomic data for several winter wheat cultivars. Considerable yield compensation took place in stands exhibiting partial winterkill, and as a result hardier cultivars did not always demonstrate a yield advantage.

WINTER SURVIVAL, FORAGE AND GRAIN YIELDS OF SPRING-SEEDED WINTER WHEAT AND WINTER RYE MOWED ONCE OR SEVERAL TIMES BEFORE WINTER

1971 ◽  
Vol 51 (3) ◽  
pp. 211-214
Author(s):  
Wm. G. CORNS ◽  
R. K. GUPTA
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Forage Yield ◽  
Winter Survival ◽  
Winter Rye ◽  
Grain Yields ◽  
Better Than

Winter wheat and winter rye seeded at Edmonton in May, 1969, were harvested for forage, either once at four different dates or repeatedly up to four times before winter. Winter wheat forage in plots mowed four times was over 6000 kg/ha (2.7 tons/acre). Winter survival, although only about 35%, was much superior to the 7–10% in unmowed controls. Forage yield from May-seeded winter rye mowed four times was about 5300 kg/ha (2.4 tons/acre). Winter survival was better than 85% in such plots compared with only about 30% in unmowed spring plots. The latest single mowing on September 1, or series of mowings ending on September 1, resulted in best winter survival from both spring-seeded crops. There was virtually complete survival of both crops that were unmowed after seeding on August 15. The grain yield from the spring-seeded rye that had the greatest amount of forage, noted above, and which had best winter survival was about two-thirds that of unmowed August-seeded rye.

Effects of an intercultivaral chromosome substitution on winterhardiness and vernalization in wheat.

Genetics ◽  
1988 ◽  
Vol 119 (2) ◽  
pp. 453-456
Author(s):  
R S Zemetra ◽  
R Morris
Keyword(s):  
Winter Wheat ◽  
Growth Habit ◽  
Wheat Cultivar ◽  
Triticum Aestivum L ◽  
Segregation Ratio ◽  
Substitution Line ◽  
Winter Survival ◽  
Winter Wheat Cultivar ◽  
Vernalization Gene ◽  
Chromosome 3B

Abstract During a study on the genetic control of winterhardiness in winter wheat (Triticum aestivum L. group aestivum), a gene that affected vernalization was found on chromosome 3B in the winter wheat cultivar ;Wichita.' When chromosome 3B from Wichita was substituted into the winter wheat cultivar ;Cheyenne,' the resultant substitution line exhibited a spring growth habit. This is unusual since a cross between the cultivars Wichita and Cheyenne results in progeny that exhibit the winter growth habit. The F(2) plants from a cross of the 3B substitution line to Cheyenne, the recipient parent, segregated 3:1 for heading/no heading response in the absence of vernalization (chi(2) = 2.44). Earliness of heading appeared to be due to an additive effect of the 3B gene as shown by the segregation ratio 1:2:1 (early heading-later heading-no heading) (chi(2) = 2.74). This vernalization gene differs from previously described vernalization genes because, while dominant in a Cheyenne background, its expression is suppressed in Wichita. The gene may have an effect on winter hardiness in Wichita. In a field test for winter survival the 3B substitution line had only 5% survival, while Wichita and Cheyenne had 50 and 80% survival, respectively. No other substitution line significantly reduced winter survival. The difference between Wichita and Cheyenne in winterhardiness may be due to the vernalization gene carried on the 3B chromosome.

Relationships between cover performance and date of fall-seeding where winter rye was broadcast into a standing potato crop

1992 ◽  
Vol 72 (1) ◽  
pp. 269-274
Author(s):  
Linnell M. Edwards ◽  
John M. Sadler
Keyword(s):  
Cover Crops ◽  
Potato Crop ◽  
Ground Cover ◽  
Dry Mass ◽  
Winter Survival ◽  
Winter Rye ◽  
Winter Ground ◽  
Post Harvest

Winter rye was broadcast into a potato crop just after topkilling with the object of avoiding post-harvest delays in establishing a winter ground cover. Rye treatments were interseeded (i) at intervals of 1 d for up to 10 d before potato digging, without post-harvest tillage and (ii) just after digging and preparatory seedbed tillage as a comparative standard. Generally, cover performance of rye, measured as plant count, tiller count or dry mass of plants showed significant (P < 0.05) increase with decreasing days to potato digging up to 3 or 4 d before digging. There was no sacrifice of rye cover using this inter-seeding approach compared with traditional post-(potato) harvest seeding in a prepared seedbed. Seeding 3–4 d before potato harvest is recommended on the basis of superior fall plant count, spring tiller count and shoot dry mass, and winter survival indices on either of these days.Key words: Cover crops, winter rye, winter survival, companion cropping

FACTORS AFFECTING THE COLD SURVIVAL OF WINTER CEREALS

1977 ◽  
Vol 57 (1) ◽  
pp. 213-219 ◽  
Author(s):  
L. V. GUSTA ◽  
D. B. FOWLER
Keyword(s):  
Winter Wheat ◽  
Cold Tolerance ◽  
Winter Rye ◽  
Factors Affecting ◽  
Winter Cereals ◽  
Higher Temperature ◽  
Thawing And Freezing Cycles

Several parameters affecting cold tolerance of winter cereals in artificial freeze tests were examined. Supercooling followed by freezing resulted in death occurring at a higher temperature than when freezing was initiated just below 0 C. The cold tolerance of fully acclimated crowns of winter wheat and a winter rye were reduced an average of 5 C after two thawing and freezing cycles. The duration of freezing in artificial freeze tests has a significant effect on the LD50 of winter cereals. Rapid thawing (2–4 C/min) resulted in death occurring at a higher temperature than slow thawing (0.5–2 C/h).

The effects of phenotypic plasticity on photosynthetic performance in winter rye, winter wheat and Brassica napus

2011 ◽  
Vol 144 (2) ◽  
pp. 169-188 ◽  
Author(s):  
Keshav Dahal ◽  
Khalil Kane ◽  
Winona Gadapati ◽  
Elizabeth Webb ◽  
Leonid V. Savitch ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Brassica Napus ◽  
Winter Wheat ◽  
Photosynthetic Performance ◽  
Winter Rye

EFFECT OF COVER CROPS ON WINTER SURVIVAL, COMMON ROOT ROT, AND YIELD OF WINTER WHEAT

1962 ◽  
Vol 42 (2) ◽  
pp. 286-293 ◽  
Author(s):  
A. D. Smith ◽  
J. S. Horricks ◽  
J. E. Andrews
Keyword(s):  
Winter Wheat ◽  
Cover Crops ◽  
Root Rot ◽  
Cover Crop ◽  
Ammonium Phosphate ◽  
Winter Survival ◽  
Common Root ◽  
Common Root Rot

When four varieties of winter wheat (Yogo, Kharkov 22 M.C., Jones Fife, and Elgin) were sown into wheat, oat, or barley cover crops, the yields were lower than when they were sown on fallow. The yield of winter wheat sown into the different cover crops was highest in barley and lowest in wheat cover crop. When the growth of cover crops was abundant, the yield of winter wheat was reduced. Application of ammonium-phosphate-sulphate fertilizer (16-20-0) increased the yield of winter wheat and generally decreased the severity of common root rot. Winter survival was generally greater when winter wheat was sown into cover crops than when it was sown on fallow. Root rot was most severe in winter wheat sown into wheat cover and was progressively less severe when sown into fallow, barley, or oat cover. Neither blade-cultivating nor mowing the cover crop prior to seeding the winter wheat appreciably affected the yield.

scholarly journals Relationship Between Dehydrin Accumulation and Winter Survival in Winter Wheat and Barley Grown in the Field

2019 ◽  
Vol 10 ◽  
Author(s):  
Pavel Vítámvás ◽  
Klára Kosová ◽  
Jana Musilová ◽  
Ludmila Holková ◽  
Pavel Mařík ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Winter Survival
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