The Acquisition and Utilization of Carbon in Early Spring by Kiwifruit Shoots

Piller, G.J.; Meekings, J.S.

doi:10.1006/anbo.1996.0382

Cited by 20 publications

(11 citation statements)

References 35 publications

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“…These vines received standard commercial management, except that they were not treated with the budbreak enhancing material hydrogen cyanamide (Henzell and Briscoe, 1986). Measurements of shoot extension growth were employed throughout as an index of carbon accumulation (Piller and Meekings, 1997).…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

“…During the first 3 weeks of shoot growth, the influx of carbon to growing shoots from net photosynthesis is considerably smaller than the amount acquired from reserves (Piller and Meekings, 1997). Hence photosynthesis and respiration were omitted at this stage.…”

Section: Equations and Implementationmentioning

confidence: 99%

“…Consequently when the labile pool is empty growth is zero, and when the labile pool is full, growth occurs at the potential rate. The initial value of g was set at 0n1 (d − ") from the data of Piller and Meekings (1997), but its influence on model behaviour was tested in simulations. Further, eqn (11) can be rewritten using eqn (3) as…”

Section: Symbolmentioning

confidence: 99%

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Carbon Supply From Starch Reserves to Spring Growth: Modelling Spatial Patterns in Kiwifruit Canes

et al. 1999

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The remobilization and transport of reserve carbon from a kiwifruit (Actinidia deliciosa) cane to developing axillary shoots was modelled using a simple pool structure and mass flow process. Manipulative experiments with mature kiwifruit plants are compared with simulation results. The model uses detailed architectural information rather than explicit partitioning functions, achieving carbon partitioning as emergent behaviour of a spatial organization. The model successfully simulated shoot growth and starch distribution patterns. # 1999 Annals of Botany Company

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Section: Experimental Materials and Methodsmentioning

confidence: 99%

Section: Equations and Implementationmentioning

confidence: 99%

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Carbon Supply From Starch Reserves to Spring Growth: Modelling Spatial Patterns in Kiwifruit Canes

et al. 1999

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“…An alternative explanation for sizedependent damage is that larger plants emerged earlier than small plants. Rates of emergence and development in perennials have been shown to vary as a function of carbon storage; larger ginseng with greater photosynthate stores may have developed at a faster rate compared to smaller plants (Pillar and Meekings 1997;Bustamante and Búrquez 2008). Whatever the mechanism by which the frost injured larger plants, the demographic consequences were enhanced because these primary seed producers were more frequently impacted.…”

Section: Discussionmentioning

confidence: 99%

Vulnerability of wild American ginseng to an extreme early spring temperature fluctuation

Souther

McGraw

2010

Population Ecology

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Frost events in natural plant populations can have dramatic demographic consequences. For many plant species, spring emergence occurs when probability of damaging frost is low. Climate change, however, may alter weather patterns such that the environmental cues signaling spring emergence no longer coincide with periods of low frost risk, rendering plant populations susceptible to damaging frost events more frequently than in the past. In 2007, a spring freeze occurred in the eastern United States after a period of unusually warm temperatures. We took advantage of a long-term demographic dataset for American ginseng (Panax quinquefolius L.) to examine among and within population patterns of frost damage, as well as the effects of the frost on ginseng demography. Higher temperatures prior to the frost event increased the probability and extent of frost damage at the population level. Within populations, large plants tended to be damaged more frequently than smaller plants. Survival, growth, and reproduction were reduced in frost-damaged plants compared to undamaged plants in the year of the frost event, and negative effects on growth and reproduction persisted the following year. For plants such as ginseng, increases in frost frequency will negatively impact population growth, and likely have serious ramifications for long-term population viability.

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“…This was demonstrated on vines grown in controlled environments where the external climatic environment was uncoupled from the vine, enabling ontogenetical effects to be discerned. However, Lai et al (1989a) and Piller & Meekings (1997) have shown similar differences in leaf photosynthesis in relation to nodal position on field-grown kiwifruit vines. The external environment nevertheless also remains a significant driver on photosynthesis and to fully assess all factors affecting photosynthetic development on whole leaves then both the external environment and internal factors need to be considered.…”

Section: Introductionmentioning

confidence: 89%

Seasonal and daily changes in carbon acquisition of kiwifruit leaves with and without axillary fruit

Greer¹

1999

New Zealand Journal of Crop and Horticultural Science

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Potted kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) plants were transferred to a controlled environment at monthly intervals throughout the growing season (OctoberMay). Daily time-courses of net photosynthesis and respiration were measured on vegetative and fruitsubtending leaves that emerged in October, November, December, and February. Net carbon acquisition of each leaf was determined from daily and seasonal changes in gas exchange. Maximal rates of photosynthesis were coincident with or shortly after leaves became fully expanded and photosynthetic development was dependent on the environmental history of leaves. Photosynthesis declined during the day by 10-40% in vegetative leaves and 20-50% in leaves subtending fruit. Carbon acquisition of leaves subtending fruit was 60% lower than vegetative leaves. Results imply that competition between fruit and vegetative sinks has a regulatory role on carbon acquisition of leaves but further elucidation to understand how this affects variation in fruit size is required.

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The Acquisition and Utilization of Carbon in Early Spring by Kiwifruit Shoots

Cited by 20 publications

References 35 publications

Carbon Supply From Starch Reserves to Spring Growth: Modelling Spatial Patterns in Kiwifruit Canes

Carbon Supply From Starch Reserves to Spring Growth: Modelling Spatial Patterns in Kiwifruit Canes

Vulnerability of wild American ginseng to an extreme early spring temperature fluctuation

Seasonal and daily changes in carbon acquisition of kiwifruit leaves with and without axillary fruit

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