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文章对红厚壳形态生物学、生理、生长、化学成分特性及潜在利用价值主要是生态、油用、药用等方面的研究进展进行了综述,并对红厚壳的应用及研究前景进行了展望. 相似文献
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Subhadip Ghosh Pranoy Pal Lai Fern Ow Daniel C. Burcham Amitava Rakshit 《Communications in Soil Science and Plant Analysis》2018,49(10):1229-1238
Horticultural application of hydroabsorbent polymer (HP) has drawn research attention due to its perceived benefits to plant growth. Few studies have compared the use of compost and HP amendments on tree establishment in tropical urban environments. An experiment was conducted to assess the effect of compost (40% v v–1) and HP (3 and 5 kg m–3) on the growth of two native tree saplings (Calophyllum soulattri and Syzygium myrtifolium) in loamy and sandy soils. The HP treatments significantly affected soil pH and extractable phosphorus (P) and potassium (K), whereas combined application of compost and HP (5 kg m–3) resulted in significantly higher nitrogen (N) in both soil types. Plant diameter and height were significantly higher following HP application. This experiment demonstrates the efficacy of HP that can cater the plant requirements at the initial growth stages which are crucial for their successful establishment in tropic urban degraded soils. 相似文献
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红厚壳光合特性研究(英文) 总被引:6,自引:0,他引:6
[Objective] The experiment aimed to research the photosynthetic characteristics of Calophyllum inophyllum Linn.and the relations between Calophyllum inophyllum Linn. and ecological factors.[Method] The portable photosynthesis system(Li-6400) was used to determine photosynthetic characteristics of 6-year-old Calophyllum inophyllum Linn.[Result] Both the leaf net photosynthetic rate change and diurnal variation of transpiration rate were single peak type.The relations among the leaf net photosynthetic rate of Calophyllum inophyllum Linn.and photosynthetically active radiation,CO2 concentration and other relevant ecological factors(including transpiration rate, stomatal conductance, difference of vapour pressure and leaf temperature) were two quadratic linear relations.[Conclusion] Calophyllum inophyllum Linn. preferred strong light irradiation and high temperature environment and the experiment has provided foundations for ecological and commercial cultivations. 相似文献
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Tran Trung Hieu Soon‐Il Kim Hyung Wook Kwon Young‐Joon Ahn 《Pest management science》2010,66(11):1191-1198
BACKGROUND: The repellency to stable fly, Stomoxys calcitrans (L.), of Zanthoxylum piperitum (L.) DC pericarp steam distillate (ZP‐SD), Zanthoxylum armatum DC seed oil (ZA‐SO) and their constituents alone or in combination with Calophyllum inophyllum L. nut oil (CI‐NO), as well as six aerosol formulations containing ZP‐SD or ZP‐SO and CI‐NO, was compared with that of a synthetic repellent, DEET, using an exposed human hand bioassay. RESULTS: At 0.20 mg cm?2, ZP‐SD treatments resulted in 91 and 68% repellency following 30 and 60 min exposure respectively, while DEET gave 100 and 84% repellency. ZA‐SO was less effective than ZP‐SD. At 0.2 mg cm?2, the most active constituents, cuminaldehyde, cuminyl alcohol, limonene and methyl cinnamate, gave 82, 74, 74 and 64% repellency at 30 min respectively, but DEET gave 100 and 87% repellency at 30 and 60 min. An increase in effectiveness and duration of repellency was produced by binary mixtures of ZP‐SD, ZA‐SO or bioactive constituents (each 0.01 mg cm?2) and CI‐NO (0.99 mg cm?2). The repellency of aerosols containing 2.5% ZP‐SD or 2.5% ZA‐SO and 2.5% CI‐NO was comparable with that of 5% DEET aerosol. CONCLUSION: Mixtures formulated from ZP‐SD, ZA‐SO or bioactive constituents and CI‐NO could be useful as potential repellents for the control of stable fly populations in light of global efforts to reduce the level of highly toxic synthetic repellents. Copyright © 2010 Society of Chemical Industry 相似文献
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A greenhouse pot experiment was conducted to study the effects of nitrogen fertilization on Calophy- llum inophyllum seedlings grown with 0, 50, 100, 150, 200, 300, 400 and 600 mg N per seedling according to exponential functions. Seedling height, root collar diameter, leaf area and total biomass increased with increasing fertilization from 0 to 200 mg N per seedling and decreased with further increase in fertilization from 300 to 600 mg N per seedling. The net photosynthetic rate, stomatal conductance, intercellular CO2 concentration and transpiration rate of C. inophyllum seedlings showed a unimodal parabolic trend, with peak values of 7.29 mmol·m−2·s−1, 0.071 mol·m−2·s−1, 220 mmol·mol−1 and 1.34 mmol·m−2·s−1, respectively, when the rate of fertilization was 200 mg N per seedling. Photosynthetic gas exchange parameters were significantly different among nitrogen treatments. Based on the critical values of leaf N and P concentration and N/P ratio, the optimum amount of nitrogen of C. inophyllum seedlings was 200–400 mg per seedling for leaf N and P concentration, and 100–400 mg per seedling for N/P ratio. It was concluded that 200–400 mg N per seedling was the most suitable nitrogen range for C. inophyllum seedlings. 相似文献
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采用温室盆栽方法,设置0(对照)、50、100、150、200、300、400、600 mg.株-18个氮素处理,研究氮素供应对红厚壳幼苗生长及光合特性的影响。结果表明:随供氮量的增加,红厚壳幼苗高、地径、叶面积及整株生物量均呈现出先增加后降低的趋势,均在200 mg.株-1时达到峰值,分别为22.06 cm、0.65 cm、327.27 cm2和10.43 g.株-1,是对照的1.59、1.25、2.58、1.90倍;地下生物量N5显著高于N7、N8处理,但与其余处理无显著性差异,根冠比随供氮量的增加呈现单调递减趋势;红厚壳幼苗叶绿素a、b及总量随供氮量的增加而增加;红厚壳幼苗的净光合速率、气孔导度、胞间CO2浓度以及蒸腾速率随供氮量的增加呈现出先增加后减小的趋势,均在200 mg.株-1时达最大值,分别是7.29μmol.m-2.s-1、0.071 mol.m-2.s-1、220.22μmol.mol-1和1.34 mmol.m-2.s-1,分别是对照的2.26、1.92、1.37、1.79倍,不同氮素处理间红厚壳光合气体交换参数差异均显著。结果表明:施氮量200 mg.株-1左右为红厚壳幼苗温室栽培的最佳施肥量。 相似文献