Technologies for reducing water consumption by pineapples in the semi-arid region

被引:1
作者
da Silva, Bruno Soares [1 ]
Maia, Victor Martins [1 ]
dos Santos, Silvanio Rodrigues [1 ]
Pegoraro, Rodinei Facco [2 ]
Ferreira, Evander Alves [2 ]
Azevedo, Alcinei Mistico [2 ]
dos Santos, Joao Rafael Prudencio [2 ]
机构
[1] Univ Estadual Montes Claros Unimontes, BR-39440000 Janauba, MG, Brazil
[2] Univ Fed Minas Gerais UFMG, Inst Ciencias Agr ICA, Montes Claros, MG, Brazil
来源
CIENCIA RURAL | 2024年 / 54卷 / 09期
关键词
Ananas comosus; Fantastic IAC; shading screen; hydrogel; mulching; QUALITY; GROWTH; YIELD; CULTIVATION; IRRIGATION; SOIL;
D O I
10.1590/0103-8478cr20230271
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
In irrigated systems, the adoption of management methods like soil cover, polymers which absorb the water present in the soil and the utilization of shading screens can decrease the water consumption by the plants. This is achieved as these means protect the plant and soil against radiation and wavelengths of light undesirable for cultivation. However, for pineapple cultivation in the semi-arid climate regions, very little study has been done regarding these technologies. Hence, the present study conducted to assess the pineapple growth, production and quality when various kinds of soil cover, red shading screen and water absorption polymers are employed. To accomplish this, a field trial was performed utilizing four types of soil cover in the plots (plastic mulching; organic matter; organic matter + red shading screen 50%; plastic mulching + red shading screen 50% and the control (no cover).Two treatments were included in the subplots namely, either the absence or presence of a water-absorbing polymer in the planting hole (0.5 g per plant), arranged in subdivided plots. We adopted the Randomized Complete Block (RCB) , with three replications. The following aspects of the plants were studied: naturally flowering, stem diameter; leaf area index; D-leaf area and total leaf area; fruit weight with crown; fruit weight without crown; fruit length with crown; and fruit length without crown, as well as the traits of the post-harvest fruit, soluble solids, titratable acidity, pH and the soluble solids/titratable acidity ratio. Further, the productivity in t ha(-1) and efficiency of water use (EUA) were ascertained. It was evident that the plastic mulching + 50% red shading screen favored the vegetative development and productivity of the 'IAC Fantastico' pineapple plants. The characteristics of the quality of the postharvest fruit were unaffected by the treatments. The shading screen reduced the percentages of natural flowering in the treatments which included organic matter + red shading screen 50% and plastic mulching + red shading screen 50%.
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页数:12
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