Effects of temporal heterogeneity of water supply on the growth of Perilla frutescens depend on plant density

Hagiwara, Yousuke; Kachi, Naoki; Suzuki, Jun‐Ichirou

doi:10.1093/aob/mcq096

Cited by 28 publications

(36 citation statements)

References 19 publications

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“…However, in nature, plants are generally exposed to competition with their neighbors. Thus, extrapolating the real meaning of findings obtained from individual species is difficult (Bloor et al, 2008 have confirmed that both intra- (Hagiwara et al, 2010) and interspecific (Blank, 2010) competition are likely to affect the response of each species to climate change. However, no clear pattern in the outcome of interspecific and intraspecific competition has been found in high mountain trees under elevated temperature.…”

Section: Introductionmentioning

confidence: 85%

Ecophysiological responses of two dominant subalpine tree species Betula albo-sinensis and Abies faxoniana to intra- and interspecific competition under elevated temperature

Duan

Dong

Zhang

et al. 2014

Forest Ecology and Management

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Section: Introductionmentioning

confidence: 85%

Ecophysiological responses of two dominant subalpine tree species Betula albo-sinensis and Abies faxoniana to intra- and interspecific competition under elevated temperature

Duan

Dong

Zhang

et al. 2014

Forest Ecology and Management

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“…Nutrient levels must be considered in the study of water heterogeneity for three reasons: (1) nutrient availability depends on water availability (Lambers et al 1998); (2) plants will be more sensitive to variability in water supply under nutrientrich than under nutrient-poor conditions, because they grow larger and require more water when nutrients are abundant (Goldberg and Novoplansky 1997;Stevens et al 2006); and (3) nutrient levels affect the root growth of plants (Fitter 1997), and this consequently can affect water uptake. In fact, an interactive effect of water heterogeneity and nutrient levels has been reported in the annual herbaceous species Perilla frutescens L. (Hagiwara et al 2008(Hagiwara et al , 2010. A few agricultural studies have also showed the interaction of water heterogeneity and nutrient levels (Silber et al 2003;Xu et al 2004).…”

Section: Introductionmentioning

confidence: 98%

“…Few studies have investigated the effects of population density on plant responses to water heterogeneity. In P. frutescens, however, water heterogeneity affects plant growth more clearly at high population densities than at low densities (Hagiwara et al 2010). Because the insight on the independent effects of water heterogeneity has been increasing recently (Fay et al 2003;HeislerWhite et al 2008), and because the independent effects of nutrient levels and population densities on plant growth have been well studied (Begon et al 2006), the interactive effects of water heterogeneity with nutrient levels and/or population densities should be investigated in turn.…”

Section: Introductionmentioning

confidence: 99%

Combined effects between temporal heterogeneity of water supply, nutrient level, and population density on biomass of four broadly distributed herbaceous species

2011

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Temporal heterogeneity of water supply affects grassland community productivity and it can interact with nutrient level and intraspecific competition. To understand community responses, the responses of individual species to water heterogeneity must be evaluated while considering the interactions of this heterogeneity with nutrient levels and population density. We compared responses of four herbaceous species grown in monocultures to various combinations of water heterogeneity, nutrient level, and population density: two grasses (Cynodon dactylon and Lolium perenne), a forb (Artemisia princeps), and a legume (Trifolium repens). Treatment effects on shoot and root biomass were analyzed. In all four species, shoot biomass was larger under homogeneous than under heterogeneous water supply. Shoot responses of L. perenne tended to be greater at high nutrient levels. Although root biomass was also larger under homogeneous water supply, effects of water heterogeneity on root biomass were not significant in the grasses. Trifolium repens showed marked root responses, particularly at high population density. Although greater shoot and root growth under homogeneous water supply appears to be a general trend among herbaceous species, our results suggested differences among species could be found in the degree of response to water heterogeneity and its interactions with nutrient level and intraspecific competition.

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“…Plant responses to water frequency vary depending on nutrient availability and soil water content [3]–[6]. Soil water status also affects soil biota [7], and interacts with soil biota to affect plant growth.…”

Section: Introductionmentioning

confidence: 99%

Availability and Temporal Heterogeneity of Water Supply Affect the Vertical Distribution and Mortality of a Belowground Herbivore and Consequently Plant Growth

2014

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We examined how the volume and temporal heterogeneity of water supply changed the vertical distribution and mortality of a belowground herbivore, and consequently affected plant biomass. Plantago lanceolata (Plantaginaceae) seedlings were grown at one per pot under different combinations of water volume (large or small volume) and heterogeneity (homogeneous water conditions, watered every day; heterogeneous conditions, watered every 4 days) in the presence or absence of a larva of the belowground herbivorous insect, Anomala cuprea (Coleoptera: Scarabaeidae). The larva was confined in different vertical distributions to top feeding zone (top treatment), middle feeding zone (middle treatment), or bottom feeding zone (bottom treatment); alternatively no larva was introduced (control treatment) or larval movement was not confined (free treatment). Three-way interaction between water volume, heterogeneity, and the herbivore significantly affected plant biomass. With a large water volume, plant biomass was lower in free treatment than in control treatment regardless of heterogeneity. Plant biomass in free treatment was as low as in top treatment. With a small water volume and in free treatment, plant biomass was low (similar to that under top treatment) under homogeneous water conditions but high under heterogeneous ones (similar to that under middle or bottom treatment). Therefore, there was little effect of belowground herbivory on plant growth under heterogeneous water conditions. In other watering regimes, herbivores would be distributed in the shallow soil and reduced root biomass. Herbivore mortality was high with homogeneous application of a large volume or heterogeneous application of a small water volume. Under the large water volume, plant biomass was high in pots in which the herbivore had died. Thus, the combinations of water volume and heterogeneity affected plant growth via the change of a belowground herbivore.

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Effects of temporal heterogeneity of water supply on the growth of Perilla frutescens depend on plant density

Cited by 28 publications

References 19 publications

Ecophysiological responses of two dominant subalpine tree species Betula albo-sinensis and Abies faxoniana to intra- and interspecific competition under elevated temperature

Ecophysiological responses of two dominant subalpine tree species Betula albo-sinensis and Abies faxoniana to intra- and interspecific competition under elevated temperature

Combined effects between temporal heterogeneity of water supply, nutrient level, and population density on biomass of four broadly distributed herbaceous species

Availability and Temporal Heterogeneity of Water Supply Affect the Vertical Distribution and Mortality of a Belowground Herbivore and Consequently Plant Growth

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