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首页> 外文期刊>Revista Brasileira de Fruticultura >Physiology and quality of Eugenia dysenterica DC seedlings grown in vermiculite and rice husk-based substrates
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Physiology and quality of Eugenia dysenterica DC seedlings grown in vermiculite and rice husk-based substrates

机译：以ver石和稻壳为基质的Eugenia dysenterica DC幼苗的生理和品质

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MOTA, Clenilso Sehnen et al. Physiology and quality of Eugenia dysenterica DC seedlings grown in vermiculite and rice husk-based substrates. Rev. Bras. Frutic. [online]. 2018, vol.40, n.1, e-049. ?Epub?Mar?08, 2018. ISSN 0100-2945.? http://dx.doi.org/10.1590/0100-29452018049. Eugenia dysenterica DC is a fruiting species endemic to the Brazilian Cerrado, belonging to the Myrtaceae family and popularly known as Cagaiteira. It has medicinal and antifungal properties, and has an important function in the ecosystem. Nevertheless, there are few studies about the maintenance of this species. The aim of this study was to evaluate the growth, nutrition, quality and physiology of E. dysenterica seedlings grown in fine vermiculite and rice husk-based substrates in the following combinations: 1:0, 3:1, 1:1, and 1:3, in addition to Trimix? commercial substrate and vermiculite only. The physical attributes of substrates (dry and moist densities, available water, remaining water, aeration space and total porosity), seedling emergence percentage, emergence speed index, gas exchange, chlorophyll a fluorescence, relative seedling water content, relative substrate moisture content, plant biometric growth characteristics, accumulated dry weight and nutritional status were evaluated through leaf macronutrient content 128 days after emergence. The increase in the proportion of rice husk mixed with vermiculite resulted in reduction of the dry and moist densities of substrates, available water, remaining water, total porosity and moisture content, and increased the aeration space in substrates. The fine vermiculite substrate promoted the highest Dickson’s quality index and the greatest stem diameter of plants. Seedlings grown on vermiculite substrate presented higher N and K content in leaves, and those grown in Trimix? substrate showed higher leaf Mg content. Substrates did not alter the physiological attributes of seedlings.
机译：MOTA，Clenilso Sehnen等。以ver石和稻壳为基质的Eugenia dysenterica DC幼苗的生理和品质。胸罩牧师果然[线上]。 2018年第40卷第1期e-049。 Epub，2018年3月8日。ISSN0100-2945。 http://dx.doi.org/10.1590/0100-29452018049。 Eugenia dysenterica DC是巴西Cerrado特有的结果类，属于Myrtaceae家族，俗称Cagaiteira。它具有药用和抗真菌特性，并且在生态系统中具有重要作用。然而，很少有关于该物种维持的研究。这项研究的目的是评估以下fine种在细ver石和稻壳基基质中生长的E. dysenterica幼苗的生长，营养，质量和生理学：1：0、3：1、1、1：1和1 ：3，除了Trimix吗？商业底材和ver石。基质的物理属性（干，湿密度，可用水，剩余水，曝气空间和总孔隙率），幼苗出苗率，出苗速度指数，气体交换，叶绿素a荧光，幼苗相对含水量，相对基质含水量，植物出苗后128天，通过叶片大量营养素含量评估生物特征生长特征，累积干重和营养状况。稻壳与ver石混合的比例的增加导致基质干湿密度，可用水，剩余水，总孔隙率和水分含量的降低，并增加了基质中的曝气空间。细的ver石基质促进了Dickson的最高质量指数和最大的植物茎直径。在ver石基质上生长的幼苗叶片中的N和K含量较高，而在Trimix？基质显示较高的叶片Mg含量。基质没有改变幼苗的生理特性。

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