Evaluation of some pepper genotypes as rootstocks in water stress conditions

Water stress is a major environmental factor that limits crop production and it is important to develop crop varieties with higher yield under water scarcity. Increased pepper tolerance to water stress through grafting onto robust rootstocks could be an optimal alternative in the context of environm...

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Published inHorticultural science (Praha) Vol. 41; no. 4; pp. 192 - 200
Main Authors Penella, C., Nebauer, S.G., López-Galarza, S., San Bautista, A., Rodríguez-Burruezo, A., Calatayud, A.
Format Journal Article
LanguageEnglish
Czech
Slovak
Published Prague Czech Academy of Agricultural Sciences (CAAS) 01.01.2014
Czech Academy of Agricultural Sciences
Subjects
Agricultural production
capsicum annuum
chlorophyll fluorescence
Crop production
Crop yield
Cultivars
Environmental factors
Genotypes
graft
Immunological tolerance
Photosynthesis
Plant growth
Rootstocks
Vegetables
Water scarcity
Water stress
yield
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Summary:Water stress is a major environmental factor that limits crop production and it is important to develop crop varieties with higher yield under water scarcity. Increased pepper tolerance to water stress through grafting onto robust rootstocks could be an optimal alternative in the context of environmentally friendly agriculture. Our work evaluated the behaviour of 18 pepper genotypes during vegetative and reproductive stages under water stress in order to select tolerant genotypes to be used as rootstocks for pepper cultivation. The pepper tolerance screening was based on photosynthetic parameters. The genotypes Atlante, C-40, Serrano, PI-152225, ECU-973, BOL-58 and NuMex Conquistador were revealed as the most tolerant genotypes to water stress because they maintained net photosynthetic rate levels under water stress conditions. The selected genotypes were validated as rootstocks on a pepper cultivar in terms of productivity under severe water stress. Plants grafted onto cvs Atlante, PI-152225 and ECU-973 showed higher marketable yields when compared with ungrafted cultivar.
ISSN:0862-867X
1805-9333
DOI:10.17221/163/2013-HORTSCI