Morphophysiology of Punica Granatum L. under microalgae biomass stimulation

Q3 Agricultural and Biological Sciences

Comunicata Scientiae Pub Date : 2024-02-29 DOI:10.14295/cs.v15.4142

F. A. L. Gomes, R. H. C. R. Araújo, J. S. Nóbrega, J. A. Linné, Albert EM de M Teodosio, Adriana da Silva Santos, Márcio Santos da Silva, J. F. Lima

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Abstract

The use of microalgae has been proeminent in agricultural scenario, because it is an alternative product considered extremelly productive, which contains essential elements for plants. Thus, this study aimed to evaluate the morphophysiology of Punica granatum L. seedlings treated with Spirulina platensis and Scenedesmus sp. nanoparticles in controlled environment. The research was carried out at the of Federal University of Campina Grande, Pombal-PB, using a completely randomized design with five replications. The factorial scheme (2 x 4) was adopted, represented by two types of microalgae (Spirulina platensis; Scenedesmus sp.) and four doses of application (0, 5, 10 and 15%). Growth evaluations happened at 135 days after planting, verifying the number of leaves and branches and shoot length. The physiological parameters evaluated were gas exchanges, chlorophyll ‘a’ fluorescence, electron transport rate, stationary fluorescence, maximum fluorescence yield after light adaptation and quantum efficiency of PSII. Shoot length and number of branches had rises at doses of 6 and 15%. Number of leaves was induced in seedlings at dose of 8% with Spirulina platensis. Stomatal conductance and internal CO2 concentration increased in seedlings sprayed with Spirulina platensis. extract of Scenedesmus sp. improved the stationary fluorescence and quantum efficiency of PSII in pomegranate seedlings.

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微藻生物量刺激下的石榴树形态生理学

微藻的使用在农业领域一直很突出，因为它是一种被认为具有极高生产力的替代产品，含有植物所必需的元素。因此，本研究旨在评估在受控环境下用扁平螺旋藻和Scenedesmus sp.纳米颗粒处理的石榴树幼苗的形态生理学。研究在庞巴尔格兰德坎皮纳尔联邦大学（Federal University of Campina Grande, Pombal-PB）进行，采用完全随机设计，五次重复。采用的因子方案（2 x 4）由两种微藻（螺旋藻；鳞藻）和四种施用剂量（0、5、10 和 15%）代表。种植 135 天后进行生长评估，核实叶片和枝条的数量以及嫩枝的长度。评估的生理参数包括气体交换、叶绿素'a'荧光、电子传输速率、静止荧光、光适应后的最大荧光产量和 PSII 的量子效率。在剂量为 6%和 15%时，芽长和分枝数都有所增加。用 8%剂量的螺旋藻诱导幼苗的叶片数。喷施过螺旋藻的幼苗的气孔导度和内部 CO2 浓度都有所提高。

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

Comunicata Scientiae Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The Comunicata Scientiae journal edited by Campus “Profa Cinobelina Elvas” of Federal University of Piauí (Brazil) publishes original articles, scientific notes and review articles (when invited by the editorial board), which present significant importance for Agrarian and Environmental Sciences in Portuguese, Spanish and preferentially, in English.