EFFECTS OF DIFFERENT SHADING PERIODS ON THE INITIAL GROWTH OF Cariniana estrellensis (Raddi) Kuntze

Q4 Environmental Science

Floresta Pub Date : 2022-10-07 DOI:10.5380/rf.v52i4.76206

R. Almeida, Gabriele Baroni, E. Nieri, L. A. Melo

引用次数: 0

Abstract

A better understanding of the production cycle and best methods for cultivating the seedlings of native Brazilian species are needed to further develop ecological restoration projects and close the knowledge gap on native species. This work aimed to evaluate the effects of different shading periods on the production of nursery seedlings of Cariniana estrellensis . The shade periods were based on the number of days under 50% shade (0, 30, 60, 90, 120, 150, and 180 days of experiment), using a completely randomized design, with four replicates, and 25 seedlings per parcel. We measured the height, diameter, biomass of the shoot and roots, number of leaves, and quality of seedlings, using the Dickson quality index assessment. We found a positive and linear relationship between all variables and the shading period, with a prolonged period in shade providing the best results. We concluded that Cariniana estrellensis seedlings grow more efficiently in shade.

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不同遮荫期对昆姿胭脂鱼初始生长的影响

需要更好地了解巴西本地物种的生产周期和培育幼苗的最佳方法，以进一步开展生态恢复项目并缩小对本地物种的知识差距。本研究旨在评价不同遮荫期对牛尾鱼苗木生产的影响。遮荫期根据50%遮荫天数(0、30、60、90、120、150和180天)，采用完全随机设计，4个重复，每包25棵幼苗。采用Dickson质量指数评价法测定了幼苗的高度、直径、茎、根生物量、叶片数量和幼苗质量。我们发现所有变量与遮阳时间之间存在正线性关系，遮阳时间越长，效果越好。研究结果表明，在荫蔽条件下，鱼腥鱼幼苗的生长效率更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Floresta Environmental Science-Nature and Landscape Conservation

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Revista Floresta admits articles of scientific contribution in Forest Science, in the areas of Nature Conservation, Economy and Forest Policy, Forest Management, Silviculture and Wood Technology. The main task is to promote and divulgate the development of Forest Science in Brazil and in the world. Articles published in Revista Floresta are under total responsibility of the authors, who are aware that they are original studies. It remains implicit that articles were not submitted for publication to any other divulgation media. It remains explicit the agreement of authors to norms of the journal and, along the development of their work, the observance of ethic aspects and respect of the current copyright legislation.