Environmental and internal regulation of fruiting, with particular reference to Cox's Orange Pippin apple

Goldwin, G. K.

doi:10.1017/cbo9780511752322.006

Cited by 14 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Possible causes of parthenocarpy include frost damage to the ovule, stimulation by foreign pollen, changes in the competitive balance between vegetative and reproductive structures, and (or) a spatial or temporal failure on auxin synthesis (Schwabe and Mills 1981;Goldwin 1993;Gillaspy et al 1993). Willson and Burley (1983) consider that parthenocarpic fruits may develop when resources are not limiting, or when there is a developmental error.…”

Section: Introductionmentioning

confidence: 99%

Ecological causes, function, and evolution of abortion and parthenocarpy inPistacia lentiscus(Anacardiaceae)

Verdú¹,

Garcı́a-Fayos²

1998

Can. J. Bot.

View full text Add to dashboard Cite

Parthenocarpy (the production of seedless fruits) and abortion of reproductive structures at different developmental stages are important processes limiting female fecundity in Pistacia lentiscus (Anacardiaceae), a Mediterranean endozoochorous dioecious shrub. This paper (i) tests the effects of water and pollen as the ecological causes of abortion and parthenocarpy, (ii) tests the function of abortion and parthenocarpy regarding the uncertainty of resources and predispersal seed predation, and (iii) reviews the evolution of parthenocarpy across the phylogeny of the genus Pistacia and the family Anacardiaceae. Using experimental manipulations, we examined the effects of pollen and water availability on female fecundity. The components of female fecundity were the four sequential developmental stages in the reproductive cycle: (i) flower survival after pollination, (ii) latent ovary survival, (iii) final-sized fruit survival, and (iv) seed viability. The survival of reproductive structures along the four developmental stages in response to pollination was highly variable. The survival of pollen-excluded flowers was negligible. Water addition increased the survival of reproductive structures in the first two developmental stages but this effect was lost in the other two stages. However, irrigation had a delayed effect, significantly increasing the number of viable seeds per number of flowers at the following reproductive season. The irrigated females significantly increased the percentage of viable seeds, whereas nonirrigated females did not. These data support the hypothesis that the adjustment of progeny size to the available resources is an individual feature inherent to the life history of each individual and therefore independent of the present resource level. This adjustment may have an adaptive value in relation to uncertainty of water availability. An advantage for parthenocarpy in terms of reducing seed predation was not found and it may be a nonadaptive plesiomorphic character within the genus Pistacia and within the family Anacardiaceae. A significant negative relationship was found between the rate of seed abortion and predispersal seed predation by wasps, suggesting that abortion reduces insect predation. In support of this hypothesis, we found that fruits with aborted seeds abscised in a lower proportion than expected, while fruits with seeds parasitized by wasps fell in a greater proportion than expected.Résumé : La parthénocarpie (la production de fruits sans graine) et l'avortement des structures reproductrices à différents stades du développement sont des processus importants qui limitent la fécondité femelle chez le Pistacia lentiscus (Anacardiaceae), un arbuste endozoochore méditerranéen. Dans ce travail (i) on vérifie les effets de l'eau et du pollen comme causes écologiques de l'avortement et de la parthénocarpie; (ii) on vérifie la fonction de l'avortement et de la parthénocarpie eu égard à l'incertitude des ressources et à la prédation des graines avant la dispersion; et (iii) on revoie l'év...

show abstract

Section: Introductionmentioning

confidence: 99%

Ecological causes, function, and evolution of abortion and parthenocarpy inPistacia lentiscus(Anacardiaceae)

Verdú¹,

Garcı́a-Fayos²

1998

Can. J. Bot.

View full text Add to dashboard Cite

show abstract

“…Fruit-set level can be defined as "the proportion of buds that survive the period of competition" ("final fruit set;" Goldwin, 1992). Note that ripe fruits may remain on the plant for =2 mo; losses occurring over this period were not monitored.…”

Section: Resultsmentioning

confidence: 99%

Fruit set, fruit reduction, and fruiting strategy in Cornus sanguinea (Cornaceae)

Guitián

Navarro

1996

American J of Botany

View full text Add to dashboard Cite

We studied various aspects of the fruiting biology of Cornus sanguinea (Cornaceae), a fleshy‐fruit‐producing deciduous shrub, in four populations in northwest Spain. One population was studied over a 5‐yr period (1989‐1994), and the remaining populations in 1994 only. Fruit‐set level varied among years (range 11‐18%) and among populations (range 8‐22%), but was in all cases low. Within plants, fruit‐set level did not vary significantly among inflorescences, indicating that inflorescence fruit set is independent of inflorescence position and inflorescence, phenology. To investigate the function of surplus flowers, we carried out flower removal experiments. Inflorescence fruit‐set level was unaffected by removal of up to =75% of flowers. These results suggest that Cornus sanguinea regulates its fruit‐set level via plasticity in the number of fruits aborted: if flower mortality has been high, fewer fruits will be aborted. Within the inflorescence, surplus flowers thus act as insurance against flower loss.

show abstract

“…ABA levels in dormant seeds have been extensively studied (Goldwin, 1992), but less is known about the interaction between ABA and deciduous tree buds.…”

Section: Complete Endodormancy In Deciduous Trees Is Typically Attainmentioning

confidence: 99%

“…Studies on peach flower quantities (Cristoso, 2002) post-fertilization fruit drop (Goldwin, 1992) and apple cropping variability (Jackson & Hamer, 1980) all showed that EPP was the most important factor in fruit yield.…”

Section: Fruit Set and The Effective Pollination Period (Epp)mentioning

confidence: 99%

The Influence of Chilling and Heat Accumulation on Bloom Timing, Bloom Length and Crop Yield in Almonds (Prunus dulcis (Mill.))

Covert¹

View full text Add to dashboard Cite

Environmental and internal regulation of fruiting, with particular reference to Cox's Orange Pippin apple

Cited by 14 publications

References 0 publications

Ecological causes, function, and evolution of abortion and parthenocarpy inPistacia lentiscus(Anacardiaceae)

Ecological causes, function, and evolution of abortion and parthenocarpy inPistacia lentiscus(Anacardiaceae)

Fruit set, fruit reduction, and fruiting strategy in Cornus sanguinea (Cornaceae)

The Influence of Chilling and Heat Accumulation on Bloom Timing, Bloom Length and Crop Yield in Almonds (Prunus dulcis (Mill.))

Contact Info

Product

Resources

About