Improved Tolerance of Teak (Tectona grandis L.f.) Seedlings to Low-Temperature Stress by the Combined Effect of Arbuscular Mycorrhiza and Paclobutrazol

Zaizhi, Zhou; Ma, Hua; Kunnan, Liang; Huang, Guihua; Pinyopusarerk, K.

doi:10.1007/s00344-011-9252-6

Cited by 29 publications

(18 citation statements)

References 26 publications

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“…1). Mycorrhizas help to tolerate low (Zhou et al, 2012) and high temperature stress (Maya and Matsubara, 2013), which may explain the relationship of OM plant species and temperature range. On the other hand, NM plant species are associated with high values of temperature range as well (Fig.…”

Section: Ie Highest Proportions Of Om Plant Species Inmentioning

confidence: 99%

Distribution patterns of arbuscular mycorrhizal and non-mycorrhizal plant species in Germany

Menzel

Hempel

Manceur

et al. 2016

Perspectives in Plant Ecology, Evolution and Systematics

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Section: Ie Highest Proportions Of Om Plant Species Inmentioning

confidence: 99%

Distribution patterns of arbuscular mycorrhizal and non-mycorrhizal plant species in Germany

Menzel

Hempel

Manceur

et al. 2016

Perspectives in Plant Ecology, Evolution and Systematics

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“…Several studies have demonstrated the ability of paclobutrazol to mitigate the damage caused by abiotic stresses [16][17][18][19][20][21], including high temperature stress [11,21].…”

Section: Paclobutrazolmentioning

confidence: 99%

Content of Photosynthetic Pigments and Leaf Gas Exchanges of Young Coffee Plants under Light Restriction and Treated with Paclobutrazol

Ribeiro

Matsumoto

Pereira

et al. 2019

JEAI

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The use of shading and paclobutrazol in coffee plants can be an important cultivation strategy to mitigate the negative effects of high solar radiation and atmospheric temperature. Therefore, the levels of photosynthetic pigments and foliar gas exchanges of young coffee plants submitted to doses of paclobutrazol were evaluated, in environments with artificial light restriction. Five experiments were performed: one in full sunlight and four in artificially shaded environments with black polyethylene meshes at 20%, 40%, 60% and 80% levels of light restriction. In each of these environments, an experiment was carried out, consisting of five treatments, defined by the application of paclobutrazol via substrate, at doses of 0, 10, 20, 30 and 40 mg of active ingredient per plant. Joint analysis of experiments and analysis of variance of the regression were made, for the study of levels of shading and doses of paclobutrazol. The light restriction optimized the photosynthetic apparatus of the plants, mainly at levels close to 60%, and considerably favored leaf gas exchanges of arabica coffee. The application of paclobutrazol in the studied dosages resulted in little or no effect on photosynthetic pigment contents and did not influence leaf gas exchanges of coffee plants.

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“…The triphenyltetrazolium chloride method was used to test for root activity (Zhou et al, 2012;Li et al, 2000). SOD activity was determined by xanthine oxidation .…”

Section: Determination Of Physiological Indicatorsmentioning

confidence: 99%

Allelopathic effects of different weed extracts on seed germination and seedling growth of wheat

Shao¹,

Li²,

SuHui³

et al. 2019

PAK.J.BOT.

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The present study identified wheat varieties with strong grass resistance, clarified the physiological mechanism of their anti-grassing effect, and provided a scientific basis for the application of grass-resistant wheat varieties for producing high and stable yield of wheat. Ten wheat varieties commonly used in production were selected to study the effects of Descurainia sophia, Galium tricorne, Wild oat, and sativa extracts on seed germination and seedling growth. Results showed that the Descurainia sophia, Galium tricorne, Wild oat, and Vicia sativa extracts exhibited allelopathic inhibition on wheat seed germination and seedling growth. The allelopathic indices of wheat seed germination rate, seedling height, and root length were −0.12 to −0.19, −0.70 to −0.87, and −0.70 to −0.91, respectively. The weed extract had certain differences in allelopathic inhibition on wheat. The Wild oat extract had the strongest inhibitory effect on seed germination, whereas the Descurainia sophia extract showed the weakest inhibitory effect. The Vicia sativa extract had the strongest inhibitory effect on seedling growth, whereas the Galium tricorne extract showed the weakest inhibitory effect. According to the absolute value of allelopathic index, the effects of the four kinds of weed extracts on seedling growth index were systematically clustered. Results showed that the allelopathic inhibition rate of weed extracts on Wanmai 19 was weak, and the weed resistance was strong. The weed extracts had an allelopathic effect on the root activity and activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) in the leaves and could promote the content of malondialdehyde (MDA) in the leaves. However, they had minimal allelopathic effect on Wanmai 19. The seedling height and root length of wheat seedlings were significantly correlated with root activity, activities of SOD, POD, and CAT in the leaves and MDA content. Thus, the effect of allelochemicals on the cell membrane in weed extracts could be the cause of inhibited wheat growth.

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Improved Tolerance of Teak (Tectona grandis L.f.) Seedlings to Low-Temperature Stress by the Combined Effect of Arbuscular Mycorrhiza and Paclobutrazol

Cited by 29 publications

References 26 publications

Distribution patterns of arbuscular mycorrhizal and non-mycorrhizal plant species in Germany

Distribution patterns of arbuscular mycorrhizal and non-mycorrhizal plant species in Germany

Content of Photosynthetic Pigments and Leaf Gas Exchanges of Young Coffee Plants under Light Restriction and Treated with Paclobutrazol

Allelopathic effects of different weed extracts on seed germination and seedling growth of wheat

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