Effect of low temperature and seeding depth on the germination and emergence of seven flax (<i>Linum usitatissimum</i> L.) cultivars

O’Connor, B. J.; Gusta, L. V.

doi:10.4141/cjps94-050

Cited by 26 publications

(18 citation statements)

References 2 publications

(2 reference statements)

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“…As temperature increases, time to emergence decreases and hypocotyl growth increases in crops such as pea (Pisum sativum L.) (Leach 1947) and flax (Linum usitatissimum L.) (O'Connor and Gusta 1994). In both the gradient plate study and the experiment grown in controlled environment chambers, disease severity was strongly influenced by temperature.…”

Section: Discussionmentioning

confidence: 96%

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Chang¹,

Hwang²,

Gossen³

et al. 2004

Can. J. Plant Sci.

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. 2004. Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea. Can. J. Plant Sci. 84: 901-907. Rhizoctonia solani Kühn, a prevalent fungal pathogen in cultivated prairie soils, can be an important factor affecting seedling establishment of chickpea (Cicer arietinum L.). Studies were undertaken to determine the impact of different soil conditions on seedling establishment, development of root rot, and productivity of desi (Tyson) and kabuli (Sanford) chickpea plants sown in the presence of R. solani AG-4. The impact of soil and air temperatures and seeding depth was studied under controlled conditions, and the influence of seeding date was investigated at three field sites. The host responded to warm soils by increasing its growth rate, and the pathogen by increasing its virulence. The kabuli cultivar, Sanford, showed greater susceptibility to root rot caused by R. solani than the desi cultivar, Tyson. Root rot and shoot infection levels increased with soil temperature for both cultivars, but reached maximum values at substantially lower temperatures for Sanford. Shoot biomass of infected treatments for this cultivar was substantially lower than the controls, while the biomass of Tyson was affected to a lesser degree. Air temperatures of 17/3°C day/night allowed relatively unhindered plant growth, even of the more susceptible cultivar, Sanford, in the presence of R. solani, while warmer and cooler temperatures resulted in high mortality and diminished plant growth in surviving plants. Seedling emergence and seedling dry weight were greater at a seeding depth of 2 cm than at 5 cm for seedlings grown in infested soil. In inoculated field plots, seedling emergence was greatest in treatments seeded in late May to early June compared those seeded in early or mid-May; in noninoculated treatments, both emergence and yield were lower in treatments seeded in late May than at the earlier seeding dates. Seeding date did not affect the occurrence of root rot. Rhizoctonia solani Kühn, champignon pathogène courant dans les sols cultivés des prairies, peut nuire considérablement à l'implantation du pois chiche (Cicer arietinum L.). On a donc entrepris des études pour déterminer l'incidence de divers états du sol sur l'enracinement des plantules, l'apparition du pourridié et la productivité des pois chiches desi (Tyson) et kabuli (Sanford) semés en présence de R. solani AG-4. On a vérifié les effets de la température du sol et de l'air et de la profondeur des semis en milieu contrôlé, tandis que l'incidence de la date d'ensemencement a été évaluée sur le terrain à trois endroits. Quand le sol est chaud, la plante pousse plus rapidement, mais l'agent pathogène est plus virulent. Sanford (le cultivar kabuli) est plus sensible au pourridié causé par R. solani que le cultivar desi Tyson. La gravité du pourridié et le degré d'infection des pousses augmentent avec la température du sol chez les deux cultivars, mais atteint le maximum à une température nettement plus basse ...

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Section: Discussionmentioning

confidence: 96%

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Chang¹,

Hwang²,

Gossen³

et al. 2004

Can. J. Plant Sci.

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“…Flax requires abundant moisture and cool weather during the growing season [1]. According to [2] cool temperatures combined with a long photoperiod during and after flowering increases seed yield. The cultivated area through the last 20 years was decreased from 60,000 to 30,000 feddan due to the great competition of other economic winter crops resulting in a gap between production and consumption.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Some Flax (<i>Linum usitatissimum</i> L.) Varieties Using Cluster Analysis under Sandy Soil Conditions

Bakry¹,

Ibrahim²,

Elewa³

et al. 2014

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“…According to O'Connor and Gusta (1994), temperature (over a range of 5-15°C) had no significant effect on germination frequency of flax, but seedling emergence was dramatically reduced by temperatures of less than 10°C. However, there has been no report on the effect of temperature on germination of yellow flaxseed with a low seed linolenic acid concentration.…”

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confidence: 99%

The effect of temperature, seed colour and linolenic acid concentration on germination and seed vigour in flax

Saeidi¹,

Rowland²

1999

Can. J. Plant Sci.

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Saeidi, G. and Rowland, G. G. 1999. The effect of temperature, seed colour and linolenic acid concentration on germination and seed vigour in flax. Can. J. Plant Sci. 79: 315-319. In Canada, the edible-oil type of flax (Linum usitatissimum) known as solin must have a linolenic acid concentration of less than 5% and a yellow seed colour. The yellow seed distinguishes solin from regular, high-linolenic acid linseed flax. Both altered fatty acid ratios and seed colour can have a negative impact on seed germination. The effects of temperature, seed colour and seed linolenic acid concentration on germination and seed vigour were studied in four populations that were near-isogenic for seed colour and linolenic acid level. For all populations, a germination temperature of 5°C resulted in a significantly lower germination than at 10 or 15°C. With one exception at 5°C, where yellow seed had a greater germination than brown seed, there was no difference in germination frequency between brown and yellow seed. Also, there was no difference in germination between low and high linolenic acid seed with the exception of one population where low linolenic acid seeds had lower germination at 5°C. In vigour tests however, yellow seed had lower seed vigour than brown seed in all populations. Low linolenic acid seeds had lower seed vigour than high linolenic acid seed in one population. Selection for seed vigour is essential in the breeding of solin varieties. Ce dernier caractère le distingue du lin ordinaire riche en acide linolénique. La modification des proportions de l'acide gras et la coloration de la graine pourraient avoir des effets négatifs sur le pouvoir germinatif des semences. Nous avons donc examiné sur quatre populations, quasi-isogéniques quant à la coloration de la graine et à la teneur en acide linolénique, les effets de la température, de la coloration de la graine et de la concentration d'acide linolénique sur le pouvoir germinatif et sur la vigueur de la semence. Chez toutes les populations, une température de germination de 5°C conduisait à un pourcentage de germination significativement plus bas qu'à 10 ou 15°C. À une seule exception près, à 5°C où les graines jaunes démontraient un taux de germination plus élevé que les graines à tégument brun, on ne constatait aucune différence de la fréquence de germination entre les 2 types de graine. Il n'y en avait pas non plus entre les graines à basse et celles à haute teneur en acide linolénique, à part une population dans laquelle les premières avaient un moins bon pouvoir germinatif à 5°C. En revanche, dans les essais de vigueur les graines jaunes démontraient moins de vigueur, que les graines brunes, quelle que soit la population. Dans une population, les graines à basse concentration d'acide linolénique étaient moins vigoureuses que celles à forte concentration. La sélection sur la vigueur de la semence s'impose donc dans les programmes de création des variétés de solin.

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Effect of low temperature and seeding depth on the germination and emergence of seven flax (Linum usitatissimum L.) cultivars

Cited by 26 publications

References 2 publications

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Performance Assessment of Some Flax (<i>Linum usitatissimum</i> L.) Varieties Using Cluster Analysis under Sandy Soil Conditions

The effect of temperature, seed colour and linolenic acid concentration on germination and seed vigour in flax

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Effect of low temperature and seeding depth on the germination and emergence of seven flax (Linum usitatissimum L.) cultivars

Cited by 26 publications

References 2 publications

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Effects of soil temperature, seeding depth, and seeding date on rhizoctonia seedling blight and root rot of chickpea

Performance Assessment of Some Flax (&lt;i&gt;Linum usitatissimum&lt;/i&gt; L.) Varieties Using Cluster Analysis under Sandy Soil Conditions

The effect of temperature, seed colour and linolenic acid concentration on germination and seed vigour in flax

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Product

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Performance Assessment of Some Flax (<i>Linum usitatissimum</i> L.) Varieties Using Cluster Analysis under Sandy Soil Conditions