Abstract
The need to develop and use biotechnology tools to improve management and nutritional techniques in strawberry cultivation are increasing. Based on this, the objective of this study was to test if the mycorrhizal inoculation changes the agronomic and qualitative performance of strawberry fruits. The strawberry daughters plants used were of the cultivar Camarosa. The study was carried out in an agricultural greenhouse, Horticulture Sector of the Faculty of Agronomy and Veterinary Medicine (FAMV) of UPF, in the city of Passo Fundo, Rio Grande do Sul (RS), Brazil. The experiment was developed and maintained from June to December 2015. The treatments consisted of five inoculum: T1 = no inoculum (control); T2 = Acaulospora morrowiae; T3 = Rhizophagus clarus; T4 = mycorrhizal community; T5 = Claroideoglomus etunicatum. The experimental design was a randomized block with four replicates. Each plot consisted of a bag containing 6 plants spaced 0.15 mx 0.15 m. In the pits of the plants, it was applied, with the aid of syringe and water, about 70 infective propagules of the tested inocula. During the conduction of the experiment the temperature and photosynthetically active radiation (PAR) were monitored in the culture environment. It was evaluated the agronomic and qualitative performance of the fruits and the percentage of mycorrhizal colonization of the plants roots. The data were submitted to analysis of variance and the differences between means were compared by the Tukey test at 5% of probability error. The cultivar Camarosa produced more fruits in October. In September, the month before the one with the best agronomic performance, the mean temperature was 17.7 ºC. The mean PAR recorded in the growing environment was low in relation to crop requirements, throughout the growing period. Fruits produced by plants inoculated with A. morrowiae presented higher values of TSS/TTA ratio in September and October. The percentage of mycorrhizal colonization varied from 26.2% for A. morrowiae to 46.2% for R. clarus. The inoculation of arbuscular mycorrhizal fungi does not alter the production of strawberry fruits. However, when the plants are inoculated with A. morrowiae there is an improvement in the fruit flavor.
Highlights
The strawberry (Fragaria X ananassa Duch.), among the red fruits, is the most productive and economical expression, being cultivated in Europe, Asia, North and South America (TORUN et al, 2014)
All data, including the percentage of mycorrhizal colonization of the plants’ roots, were submitted to analysis of variance (Anova) and the differences between means were compared by the Tukey test at 5% of probability error
The cultivar Camarosa produced the largest number of fruits in October, with a total and commercial number of fruits of 40.1 g plant-1 and 29.1 g plant-1, respectively (Figure 2A)
Summary
The strawberry (Fragaria X ananassa Duch.), among the red fruits, is the most productive and economical expression, being cultivated in Europe, Asia, North and South America (TORUN et al, 2014). It is appreciated by its juicy texture and nutritive value. The strawberry conventional cropping system (soil planting) is still the most used (COSTA et al, 2014) among producing countries, there is a growing migration to substrate cultivation This system presents drawbacks, such as the high use of pesticides and fertilizers, mainly in relation to phosphorus (P), where criteria and technical recommendations are not considered (PASZT et al, 2015). There is a need to develop and use biotechnology tools to improve water use efficiency (DEPARDIEU et al, 2016) and to reduce the use of chemical fertilizers in fertigation (HARTZ; HOCHMUTH, 1996), which, in addition to having a high cost, have negative consequences for the environment, such as soil contamination, water (eutrophication by excess nutrients) and extraction of nonrenewable resources, such as P
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
