The influence of temperatures on differentiation of oat genotypes

Taylor, George A.

doi:10.31274/rtd-180813-4742

Cited by 6 publications

(8 citation statements)

References 77 publications

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“…According to Taylor ( 1967), an thesis (heading) is the stage of oat growth most sensitive to high-temperature stress. Therefore, classification of oat genotypes based on GDD required to heading might aid a farmer in selecting a cultivar(s) that would head early enough to escape damage from the high-temperature stress in his environment.…”

Section: Discussionmentioning

confidence: 99%

“…He found that an thesis was generally the stage most affected by high temperature. Taylor ( 1967) and Taylor and Frey ( 1972) found that the duration from germination to any other stage of development depended primarily on temperature effects on growth rate. However, interactions between temperature, genotype, and growth stage occurred.…”

mentioning

confidence: 99%

“…Coffman ( 1954) stated that oat is very responsive to temperature during plant development. Taylor (1967) defined five stages of oat development as being germination, initiation of tillers, initiation of floral primordia, an thesis, and grain fill. He found that an thesis was generally the stage most affected by high temperature.…”

mentioning

confidence: 99%

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Genotypic Variability in Response of Oat to Delayed Sowing¹

Baltenberger¹,

Frey

1987

Agronomy Journal

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A classification of oat (Avena sativa L.) genotypes for reaction to delayed sowing could be used for developing cultivars that either escape the effects of or tolerate high temperatures. The effects of delayed sowing on duration of growth of nine genotypes of oat were studied in field experiments grown on a Coland loam (Cumulic Haplaquoll) soil at the Hinds Experiment Farm near Ames, IA. Sowing dates were 18 March, 2 April, 17 April, and 30 April in 1981; and 14 April, 28 April and 11 May in 1982. Number of growing degree days (GDD) and number of days to reach emergence, tiller initiation, fourth‐, fifth‐, and flag‐leaf stages, heading, and 80% panicle ripe were recorded. Plant height, biological and grain yields, and test weight were measured, and straw yield was calculated. Days and GDD required to reach each developmental stage varied significantly among genotypes. Genotypic differences occurred for plant height, biological and grain yields, harvest index, and test weight, but the differences were not associated with maturity differences. Significant variation occurred across sowing dates for plant height, grain yield, and test weight for most genotypes. Number of GDD required to reach any developmental stage across sowing dates generally was less variable than was number of days for all genotypes, indicating that GDD is a better predictor of oat cultivar development than is number of days. Thus, GDD for oat would be used much as corn heat units (CHU) are used in maize (Zea mays L.).

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Genotypic Variability in Response of Oat to Delayed Sowing¹

Baltenberger¹,

Frey

1987

Agronomy Journal

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“…Experiments 3 and 4 were planned to study the influence of different temperature regimes on the survival of the four races used in mixtures in experiments 1 and 2. The temperatures selected for the day/night regimes in the three Percival growth chambers were taken from Taylor's (1967) study of the influence of temperature on the differentiation of oat geno types. The regimes represent the average day/night temperatures during the oat growing season in Iowa.…”

Section: Effect Of Temperature On Mixtures Of Fungus Isolatesmentioning

confidence: 99%

“…The regimes represent the average day/night temperatures during the oat growing season in Iowa. Taylor's (1967) calculations were made from data published by Shaw (1963). The three selected day/night temperature regimes (21/12, 26/17, and 32/19C) represent average temperatures during three periods between the last days in May and the first days in July.…”

Section: Effect Of Temperature On Mixtures Of Fungus Isolatesmentioning

confidence: 99%

Factors influencing survival among four competing races of Puccinia coronata avenae

Bustamante-R

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Development Rate and Growth Duration of Oats in Response to Delayed Sowing¹

Colville¹,

Frey

1986

Agronomy Journal

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Number of days and number of growing degree‐days have both been used to predict plant development, but advantages of each are not completely understood. The effect of delayed sowing on the rate of development and duration of growth in oats (Avena sativaL.) was determined in field studies over 2 yr on a Coland loam (Cumulic Haplaquoll) soil at the Hinds Experiment Farm near Ames, IA. Number of growing degree‐days (GDD) and number of days to reach emergence, tiller initiation, fourth‐, fifth‐, and flag‐leaf stages, heading,and 80% panicle ripe were computed. Yield, bundle weight, and test weight were measured, and straw yield and vegetative growth index were calculated. Correlations were calculated for these values with number of days and with number of GDD to each stage of development. With delayed sowing, significant correlations occurred between yield factors and GDD, rate of development, and duration of growth. Number of days to reach each stage of development was significantly reduced by delayed sowing, whereas number of GDD was not. Neither, straw yield, or test weight. Both, however, could be useful for predicting rate of development and duration of growth; however, since number of GDD is less variable throughout a growing season, its use is recommended.

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The influence of temperatures on differentiation of oat genotypes

Cited by 6 publications

References 77 publications

Genotypic Variability in Response of Oat to Delayed Sowing¹

Genotypic Variability in Response of Oat to Delayed Sowing¹

Factors influencing survival among four competing races of Puccinia coronata avenae

Development Rate and Growth Duration of Oats in Response to Delayed Sowing¹

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The influence of temperatures on differentiation of oat genotypes

Cited by 6 publications

References 77 publications

Genotypic Variability in Response of Oat to Delayed Sowing1

Genotypic Variability in Response of Oat to Delayed Sowing1

Factors influencing survival among four competing races of Puccinia coronata avenae

Development Rate and Growth Duration of Oats in Response to Delayed Sowing1

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Product

Resources

About

Genotypic Variability in Response of Oat to Delayed Sowing¹

Genotypic Variability in Response of Oat to Delayed Sowing¹

Development Rate and Growth Duration of Oats in Response to Delayed Sowing¹