Physiological Pre‐determination: The Influence of the Physiological Condition of the Seed Upon the Course of Subsequent Growth and Upon the Yield.

Kidd, F.; West, C.

doi:10.1111/j.1744-7348.1919.tb05292.x

Cited by 13 publications

(12 citation statements)

References 8 publications

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“…Perhaps it has been insufficiently emphasized that the free seed is not, after all, the first stage in the plant's ontogenesis. Kidd and West (1919) stated the case for "pre-determination" in the following words : "During the course of germination and in the seedling stage, or even earlier during the sojourn of the seed upon the parent (my italics) and in the dormant period, the 'potentialities' of plants may be affected by actions which only subsequently produce visible results. These results appear during the later stages of development, without reference to the conditions then existing.…”

Section: The Preconditioning Of Seedmentioning

confidence: 99%

Environmental Preconditioning, with Special Reference to Forestry

Rowe¹

1964

Ecology

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In the morphogenesis of the plant, early ecological influences (and just how early is not known) can carry through to expression in later stages of development and behaviour; therefore, phenotypic expression is frequently to be understood most simply in the context of preconditioning. Examples from the literature emphasize that the immature seed is preconditioned by the milieu of the parent plant, that past climatic conditions influence phenology, and that flowering is frequently triggered by early—acting environmental signals. The possible role of Preconditioning in three aspects of forest science—provenance trials, tree seed orchards, and acclimatization–is examined, and the conclusion is drawn that ecological preconditioning is a fertile field for stury and experimentation.

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Section: The Preconditioning Of Seedmentioning

confidence: 99%

Environmental Preconditioning, with Special Reference to Forestry

Rowe¹

1964

Ecology

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“…Particular reference was made to the conditions of seed soaking such as the quantity of water, duration and temperature of the treatment, and to the apparent lack of effect of salts added to the soaking solutions. Their own experiments (Kidd & West, 1918) indicated a beneficial response to soaking in some cases but deleteri-ous effects in others. Chippindale (1934) investigated the effects of seed soaking on grasses, and mentioned that the practice was formerly carried out frequently by farmers, but not in 'modern' agriculture.…”

mentioning

confidence: 97%

“…(2) Historical perspective of hydration treatments Much of the work of the last century was reviewed by Kidd & West (1919). They concluded from the results published that seeds swollen in water and sown still in the moist condition germinated more rapidly than untreated seeds; tliat seeds soaked in a 'minimum' amount of water and afterwards dried slowly at ordinaty temperatures imbibed water and developed more rapidly when again allowed to take up water and germinate, than untreated seeds; but that seeds dried rapidly after initial soaking germinated tnore slowly than untreated seeds.…”

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confidence: 99%

The physiology of seed hydration and dehydration, and the relation between water stress and the control of germination: a review

Hegarty

1978

Plant Cell & Environment

261

159

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Current interest in seed hydration treattnents for the improvement of level, rate and uniformity of gennination or field emergence has revealed how little is Imown of the physiology of getmination control under water stress. This review surveys briefly the responses of seeds held at different hydration levels, from normal germination in a free water supply to seed activation without germination under slight moisture stress, seed deterioration at greater moisture stress and the damage that can be caused to seeds in very dry conditions, as well as the responses to subsequent dehydration. Inhibition of germination, though not of seed activation, at certain levels of water stress is likened to various forms of dormancy, and the mechanism governing the initiation of cell elongation is suggested as the possible key to control over germination. Several lines of evidence on cell membrane integrity and action, and their responses to external factors, point to tlie role that the membrane may play in cell elongation (and hence germination) eontrol, and membrane integrity may also be associated with the transition between seed deterioration at one hydration level and seed activation and repair at slightly higher hydration levels. Seed activation witliout germination is also considered in an ecological context.

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“…Cette variabilite dans la germination est actuellement un probleme qui interesse aussi bien les physiologistes que les agriculteurs confrontes a des faits du meme ordre avec les semences de plantes cultivees. L'etude de ces variations introduit aussi le concept de predetermination des semences, terme inaugure par Kidd et West (1919) et revu dernierement par Chaussat et Le Deunff (sous presse), qui tend a presenter une semence, prise isolement, et ses potentialites ulterieures, comme etant conditionnee par tous les avatars subis par la plante-mere au cours de l'edification des elements de reproduction sexuee.…”

Section: Discussion Et Conclusionunclassified

Hétérogénéité de la Germination des Semences de Rumex crispus mise en Evidence et Essai d'Interprétation

Deunff

1974

Physiologia Plantarum

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Germination Heterogeneity of Rumex crispus L. seeds: Occurrence and Attempt at Interpretation.Rumex crispus L. seeds, harvested without taking into account localization of mother plants or seed position on single plants differ in their response to unfavourable conditions inductive of dormancy as a function of their weight. During induction, application of potassium or GA^ prevents or reduces the entry into dormancy, suggesting that the observed heterogeneity is due to nutritional variations of the seeds in relation to their position on the mother plant.

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Physiological Pre‐determination: The Influence of the Physiological Condition of the Seed Upon the Course of Subsequent Growth and Upon the Yield.

Cited by 13 publications

References 8 publications

Environmental Preconditioning, with Special Reference to Forestry

Environmental Preconditioning, with Special Reference to Forestry

The physiology of seed hydration and dehydration, and the relation between water stress and the control of germination: a review

Hétérogénéité de la Germination des Semences de Rumex crispus mise en Evidence et Essai d'Interprétation

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