Amazon chicory: growing at full sunlight or under shade?

IF 0.7 4区农林科学 Q4 HORTICULTURE

Horticultura Brasileira Pub Date : 2023-04-07 DOI:10.1590/s0102-0536-2023-e2554

R. Gomes, Renata da S Arruda, Isabelle Caroline B do Rosário, Francisco Laurimar do N Andrade, Marcello N de Mello, L. D. S. Santos

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引用次数: 1

Abstract

ABSTRACT Climatic factors can decisively influence the growth and productivity of agricultural crops. For unconventional vegetables, such as the Amazon chicory, the influence of sunlight on growing cycle is unknown. The aim of this study was to evaluate the influence of shading levels on the productive performance of Amazon chicory. The authors used a randomized block design, with four treatments and five replicates. The treatments were black polypropylene screens, 30, 50 and 70% shading, and cultivation at full sunlight. Vegetative development and production traits were evaluated. Correlation and principal components analysis (PCA) were performed with the aid of the computer program R. No significant difference between the shading levels for the evaluated traits was noticed. Nevertheless, the cultivation at full sunlight allowed an increase in production, compared to the 70% shading screen. A strong positive correlation between productivity, leaf fresh mass and amount of water in the shoot area was verified, with a coefficient equal to 1. Only the leaf area characteristic was poorly correlated with other traits (angle >90º). Therefore, we suggest growing the Amazon chicory both at full sunlight and under 70% shading.

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亚马逊菊苣:在阳光充足的地方生长还是在阴凉处生长?

气候因子对农作物的生长和生产力具有决定性的影响。对于非常规蔬菜，如亚马逊菊苣，阳光对生长周期的影响尚不清楚。本研究的目的是评价遮荫水平对亚马逊菊苣生产性能的影响。作者采用随机区组设计，4个处理和5个重复。处理为黑色聚丙烯筛，遮荫30%、50%和70%，全日光栽培。对植物的营养发育和生产性状进行评价。利用计算机程序r进行相关分析和主成分分析(PCA)，评价性状的遮阳水平之间无显著差异。尽管如此，与70%遮阳的栽培相比，在阳光充足的栽培下可以增加产量。结果表明，产量、叶片鲜质量与茎区水分呈极显著正相关，相关系数为1。除叶面积性状与其他性状(角> ~ 90º)的相关性较差外。因此，我们建议在充分日照和70%遮荫条件下种植亚马逊菊苣。

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

Horticultura Brasileira 农林科学-园艺

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.