Asexual and Sexual Reproductive Strategies in Clonal Plants

“…Afterward, in the world, some countries with more advanced space technology had spent much energy in researching and manufacturing series turnplates, their developments had been achieved high level. Many special used simulators [4,5,6], the multipurpose multi-purpose simulators [7,8] are invented on demand. But, the function of the two kind of parallel turnplates and series turnplate widespread in used is unitary, and could not been able to satisfy the daily actual engineering need.…”

Section: Introductionmentioning

confidence: 99%

Structural Design and the State of Motion Analyzes for Multi-Degree-of-Freedom Electro-Hydraulic Mix-Drive Motion Simulator

Zhou

et al. 2009

KEM

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This paper has designed a multi-degree-of-freedom electro-hydraulic mix- drive motion simulator, which could move and turn spatially. It has both the advantages of the parallel turnplate and the series turnplate. The homogeneous coordinate transformation matrix was used to analyze the simulator’s state of motion. The position and attitude matrix for describing the simulator movement has been obtained. The kinematics equation for showing the relation of the positions between hydraulic drive rod and the turnplate was given, thus provided the theory basis for the further research to the simulator.

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Modeling the impact of reproductive mode on masting

Liu

Zhao

Wang

et al. 2017

Ecology and Evolution

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Masting is defined as the intermittent highly variable production of seed in a plant population. According to reproductive modes, that is, sexual and asexual reproduction, masting species can be separated into three groups, that is, (1) species, for example, bamboo, flower only once before they die; (2) species, for example, Fagus, reproduce sexually; and (3) species, for example, Stipa tenacissima, reproduce both sexually and asexually. Several theories have been proposed to explore the underlying mechanisms of masting. However, to our knowledge, no theory has been found to explain the mechanism of masting species that reproduce both sexually and asexually. Here we refine the Resource Budget Model by considering a trade‐off between sexual and asexual reproduction. Besides the depletion efficient (i.e., the ratio of the cost of seed setting and the cost of flowering), other factors, such as the annual remaining resource (i.e., the rest of the resource from the photosynthetic activity after allocating to growth and maintenance), the trade‐off between sexual and asexual reproduction, and the reproductive thresholds, also affect masting. Moreover, two potential reproductive strategies are found to explain the mechanisms: (1) When the annual remaining resource is relatively low, plants reproduce asexually and a part of the resource is accumulated as the cost of asexual reproduction is less than the annual remaining resource. Plants flower and set fruits once the accumulated resource exceeds the threshold of sexual reproduction; (2) when the annual remaining resource is relatively high, and the accumulated resource surpasses the threshold of sexual reproduction, masting occurs. Remarkably, under certain depletion efficient, more investigation in sexual reproduction will lead plants to reproduce periodically. Additionally, plants investigate less resource to reproduce periodically when depletion efficient keeps increasing as plants can reproduce efficiently. Overall, our study provides new insights into the interpretation of masting, especially for species that reproduce both sexually and asexually.

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Asexual and Sexual Reproductive Strategies in Clonal Plants

Cited by 13 publications

References 0 publications

Simulation of Kinematics and Dynamics of Large-Displacement Motion Simulator

Simulation of Kinematics and Dynamics of Large-Displacement Motion Simulator

Structural Design and the State of Motion Analyzes for Multi-Degree-of-Freedom Electro-Hydraulic Mix-Drive Motion Simulator

Modeling the impact of reproductive mode on masting

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