Physiology and production of yellow passion fruit with hydroabsorbent polymer and different irrigation depths

ABSTRACT The yellow passion fruit is grown under different edaphoclimatic conditions. Irrigation standardizes and increases the development and productivity of the plants. The objective of this study was to evaluate the physiological and productive aspects of yellow passion fruit with application of...

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Bibliographic Details
Published inRevista Ceres Vol. 67; no. 5; pp. 365 - 373
Main Authors Cavalcante, Adailza Guilherme, Cavalcante, Lourival Ferreira, Souto, Antônio Gustavo de Luna, Cavalcante, Alian Cássio Pereira, Araújo, Danila Lima de, Nascimento, Ana Paula Pereira do, Zanuncio, José Cola
Format Journal Article
LanguageEnglish
Portuguese
Published Universidade Federal de Viçosa 01.10.2020
Universidade Federal De Viçosa
Subjects
AGRICULTURE, MULTIDISCIPLINARY
Hydrogel
Irrigation management
Passiflora edulis
Production components
Irrigation management
Passiflora edulis
Hydrogel
Production components
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Summary:ABSTRACT The yellow passion fruit is grown under different edaphoclimatic conditions. Irrigation standardizes and increases the development and productivity of the plants. The objective of this study was to evaluate the physiological and productive aspects of yellow passion fruit with application of hydroabsorbent polymer at different irrigation depths. The experimental design was in randomized blocks in a 2 × 5 factorial arrangement. The treatments were soil with and without polymer and five dephts of irrigation (60 to 100% of crop evapotranspiration). Initial, maximum, and variable chlorophyll fluorescence, physiology (photosynthetic rate, internal carbon concentration, transpiration, stomatal conductance, water use efficiency, and instantaneous carboxylation efficiency) and production of yellow passion fruit were the variables analyzed. The hydrogel probably retained water in its structure, reducing the ability to dissipate excess energy. Setting the irrigation depth at an estimated 82% of crop evapotranspiration increased photosynthetic rate, stomatal conductance, and water use efficiency of yellow passion fruit plants. Maximum yield was 17.2 t ha-1 in irrigated plants at 100% evapotranspiration (ETc) in soil without hydrogel.
ISSN:0034-737X
2177-3491
2177-3491
DOI:10.1590/0034-737x202067050004