Biology of &lt;I&gt;Hylobitelus xiaoi&lt;/I&gt; (Coleoptera: Curculionidae), a New Pest of Slash Pine, &lt;I&gt;Pinus elliottii&lt;/I&gt;

Wen, Xiaopeng; Yuanyu, Kuang; Shi, Minqing; Li, Wanqing; Luo, Yousong; Deng, Rongling

doi:10.1603/0022-0493-97.6.1958

Cited by 10 publications

(1 citation statement)

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“…Because of its remarkable characteristics, which include rapid growth, wide adaptability, and high resin content, slash pine was introduced into China in the late 1940s and began to be planted in southern China on a large scale in the late 1970s (Wen et al, 2004). At present, more than 2 million hectares of slash pine is being grown in the southern provinces of China, making it one of the major timber and resin-tapping tree species in the country.…”

Section: Introductionmentioning

confidence: 99%

Genetic and correlation analysis of oleoresin chemical components in slash pine

Zhang¹,

Jiang²,

Luan³

2016

Genet. Mol. Res.

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ABSTRACT. This is the first comprehensive study of the genetic analysis of the majority of oleoresin components of slash pine (Pinus elliottii). Pine oleoresin, the resin secreted from the pine tree, is a raw material widely used in industrial products. The objective of this study was to explore the genetic variation and correlation between the major oleoresin components of 50 open pollinated families of slash pine. The individual narrow-sense heritability of the 23 oleoresin components and genetic correlations between them were estimated using the residual maximum likelihood in the flexible mixed modeling program, ASReml-R. A high heritability of 0.424 was observed for β-pinene. Moderate levels of heritability were estimated for β-phellandrene, methyl abietate, estragole, 15-hydroxy-dehydroabietic acid, and isopimaric acid methyl ester at 0.303, 0.294, 0.27, 0.258, and 0.2, respectively. The heritabilities for pimaric acid methyl ester, abieta-8, 13-diene-18-oic acid methyl ester, sandaracopimaric acid, methyl ester, and camphene were relatively low and ranged from 0.11 to 0.17. Many negative genetic correlations were observed as unfavorable while the corresponding phenotypic correlations presented no significant relationships or positive phenotypic correlations. However, the heritabilities and genetic correlations showed that single or multiple component selections and improvement, directly or indirectly, were effective. We postulate that genetic parameters estimated in this study will work as a reference in breeding programs of oleoresin components, especially in slash pine.

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Section: Introductionmentioning

confidence: 99%

Genetic and correlation analysis of oleoresin chemical components in slash pine

Zhang¹,

Jiang²,

Luan³

2016

Genet. Mol. Res.

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Effects of temperature on the movement and feeding behaviour of the large lupine beetle, Sitona gressorius

2022

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Even though the effects of insect pests on global agricultural productivity are well recognised, little is known about movement and dispersal of many species, especially in the context of global warming. This work evaluates how temperature and light conditions affect different movement metrics and the feeding rate of the large lupine beetle, an agricultural pest responsible for widespread damage in leguminous crops. By using video recordings, the movement of 384 beetles was digitally analysed under six different temperatures and light conditions in the laboratory. Bayesian linear mixed-effect models were used to analyse the data. Furthermore, the effects of temperature on the daily diffusion coefficient of beetles were estimated by using hidden Markov models and random walk simulations. Results of this work show that temperature, light conditions, and beetles’ weight were the main factors affecting the flight probability, displacement, time being active and the speed of beetles. Significant variations were also observed in all evaluated metrics. On average, beetles exposed to light conditions and higher temperatures had higher mean speed and flight probability. However, beetles tended to stay more active at higher temperatures and less active at intermediate temperatures, around 20 °C. Therefore, both the diffusion coefficient and displacement of beetles were lower at intermediate temperatures. These results show that the movement behaviour and feeding rates of beetles can present different relationships in the function of temperature. It also shows that using a single diffusion coefficient for insects in spatially explicit models may lead to over- or underestimation of pest spread.

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Carbon dynamics and stability between native Masson pine and exotic slash pine plantations in subtropical China

Hartmann

Wang

et al. 2013

Eur J Forest Res

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Afforestation and ecological restoration have often been carried out with fast-growing exotic tree species because of their high apparent growth and yield. Moreover, fast-growing forest plantations have become an important component of mitigation measures to offset greenhouse gas emissions. However, information on the long-term performance of exotic and fast-growing species is often lacking especially with respect to their vulnerability to disturbance compared to native species. We compared carbon (C) storage and C accumulation rates in vegetation (above- and belowground) and soil in 21-year-old exotic slash pine (Pinus elliottii Engelm.) and native Masson pine (Pinus massoniana Lamb.) plantations, as well as their responses to a severe ice storm in 2008. Our results showed that mean C storage was 116.77 ± 7.49 t C ha-1 in slash pine plantation and 117.89 ± 8.27 t C ha-1 in Masson pine plantation. The aboveground C increased at a rate of 2.18 t C ha-1 year-1 in Masson pine and 2.23 t C ha-1 year-1 in slash pine plantation, and there was no significant difference in C storage accumulation between the two plantation types. However, we observed significant differences in ice storm damage with nearly 7.5 % of aboveground biomass loss in slash pine plantation compared with only 0.3 % loss in Masson pine plantation. Our findings indicated that the native pine species was more resistant to ice storm because of their adaptive biological traits (tree shape, crown structure, and leaf surface area). Overall, the native pine species might be a safer choice for both afforestation and ecological restoration in our study region

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Biology of <I>Hylobitelus xiaoi</I> (Coleoptera: Curculionidae), a New Pest of Slash Pine, <I>Pinus elliottii</I>

Cited by 10 publications

References 9 publications

Genetic and correlation analysis of oleoresin chemical components in slash pine

Genetic and correlation analysis of oleoresin chemical components in slash pine

Effects of temperature on the movement and feeding behaviour of the large lupine beetle, Sitona gressorius

Carbon dynamics and stability between native Masson pine and exotic slash pine plantations in subtropical China

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