不同季节和灌溉水平下温室剑兰花茎采后和花期的变化

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Ciencia E Agrotecnologia Pub Date : 2021-07-16 DOI:10.1590/1413-7054202145009321
J. J. S. D. Santos, R. Pêgo, Beatriz Rodrigues Monteiro Couto, R. Martins, D. F. Carvalho
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引用次数: 1

摘要

切花是一种精致的产品,其品质和寿命取决于生长和采后的条件。研究了不同生长季节和灌溉水平下剑兰茎的花期和采后特性。实验于2018年冬/春和2019年秋/冬期间在巴西里约热内卢州的一个温室中进行。采用随机区组设计,5个重复,灌溉水平分别为作物需水量的45%、60%、80%和100%。灌溉管理由自动灌溉控制器执行,安装在100%灌溉水平处理。当它们到达收获点时,被认为是“显示三个基小花的颜色”,花茎被收获,总是在早上,并立即被带到实验室进行尺寸标准化(75厘米)。贮藏期间,茎部保存在25℃的温度下,根部浸泡在装有300 mL水的容器中。每天进行新鲜质量,吸水率,时间和寿命评估,除了视觉评估外,还使用拟议的衰老量表进行评估。栽培过程中严重的水分亏缺影响了采后茎的新鲜质量,提高了花的开放速度。在45%的灌溉水平下,剑兰的花茎寿命缩短。不同季节花卉寿命差异不显著,花期值受水分有效性影响,田间保存的花期值(0.70 ~ 0.80)低于采后保存的花期值(0.83 ~ 0.92)。
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Postharvest and anthochron of gladiolus floral stems produced in greenhouse under different seasons and irrigation levels
ABSTRACT Cut flowers are delicate products whose quality and longevity depends on growing and postharvest conditions. The aim of the study was to evaluate the anthochron and the postharvest of gladiolus stems produced under different growing seasons and irrigation levels. The experiments were carried out in a greenhouse in the State of Rio de Janeiro (Brazil) during the winter/spring 2018 and autumn/winter 2019 periods. A randomized block design with 5 replications was used, considering irrigation levels of 45%, 60%, 80% and 100% of the crop water requirement. Irrigation management was performed by the automatic irrigation controller, installed in the 100% irrigation level treatment. As they reached the harvest point, considered to be “showing the color” of the three basal florets, the floral stems were harvested, always in the morning, and immediately taken to the laboratory for standardization of size (75 cm). During the storage period, the stems were kept at a temperature of 25 ºC, with the base immersed in a container with 300 mL of water. Fresh mass, water absorption, anthochron and longevity evaluations were performed daily, in addition to a visual evaluation, performed using a proposed senescence scale. The occurrence of severe water deficit during cultivation interferes with the fresh mass of the stems in postharvest and increases the opening speed of the flowers. The floral stems’ longevity is reduced when gladiolus is produced under the 45% irrigation level. There are no significant differences in the longevity of flowers grown in the different seasons and the anthochron value is influenced by the water availability, being lower in the stems kept in field condition (0.70 to 0.80) in comparison to the postharvest condition (0.83 to 0.92).
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来源期刊
Ciencia E Agrotecnologia
Ciencia E Agrotecnologia 农林科学-农业综合
CiteScore
2.30
自引率
9.10%
发文量
19
审稿时长
6-12 weeks
期刊介绍: A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.
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