The strawberry quality characteristic and its productive performance is influenced by several factors including genotype, environment and cultivation techniques. It is extremely important to analyze the plant behavior in relation to the factors previously listed within the productive and economic system of the strawberry cultivation. The research comes from the understanding of the response of the strawberry plant to the reduction of inputs (nutritional and water-related) and to the climate changing, through the analysis of the qualitative and vegetative parameters of different genotypes, cultivation techniques and growing areas. Three Single-cropping and three Remontant varieties have been studied in an experimental agricultural farm of central Italy. Another nine selections from the breeding program of the UNIVPM-D3A and a Spanish variety have been monitored in a private agricultural farm in the south of Spain. The study shows how a reduction of the water and nitrogen supplies can be applied without adversely affecting the quality and quantity of the fruit. The type of plant, the genotype, the growing period and the environment affect the reaction of the plant to the different quantity of water supplied. In this regard the Remontant varieties show an increased sensitivity compared with the Single cropping. In Spain it was found that a water supply applied in excess or in deficit can cause a vegetative and productive underperformance, resulting in an economic loss. According to the study on the nitrogen supply, the influence of the genotype effect is clear for the Remontant varieties, but great variations among them are not evident. The induction of the variation in winter temperature causes different responses for the parameters object of the study. One of the mostly influenced is the precocity of the harvest for Remontant and in particular for the Single Cropping varieties. The data generated from the evaluation of the genotype cultivated following a sustainable use of the resources, could lead the farmers in selecting the appropriate agricultural practices which can valorize not only the production, but also the environmental sustainability.
Le caratteristiche qualitative della fragola e le performance produttive sono influenzate da molteplici aspetti tra cui genotipo, ambiente e tecniche di coltivazione. Analizzare i comportamenti della fragola in relazione alle dinamiche di tali fattori è di fondamentale importanza nell’ambito produttivo ed economico del settore della fragolicoltura. La ricerca nasce per acquisire e comprendere la risposta delle piante di fragola alla riduzione di input (idrici e nutrizionali) e al cambiamento climatico; attraverso l’analisi dei parametri vegetativi, produttivi e qualitativi di differenti genotipi, tecniche e aree di coltivazione. Tre varietà di Single-cropping e tre di Remontant sono state oggetto di studio in un’azienda agricola sperimentale del centro Italia. Mentre nove selezioni provenienti dal breeding del gruppo di ricerca D3A e una varietà spagnola sono state monitorate presso un’azienda agricola privata del Sud della Spagna. Lo studio ha rilevato che una riduzione di percentuale idrica e azotata può essere applicata, senza influenzare negativamente la quantità e qualità del frutto. La tipologia di pianta, il genotipo, il periodo di coltivazione e l’ambiente incidono sulle reazioni della pianta ai differenti quantitativi d’acqua somministrati. A riguardo le Remontant mostrano una maggiore sensibilità rispetto alla Single cropping. Nel sito della Spagna si è potuto constatare che la risorsa idrica applicata in eccesso o in deficit può causare una diminuzione delle performance sia vegetative che produttive, con conseguente perdita economica. Considerando la prova dell’azoto l’influenza del genotipo si manifesta particolarmente sulle Remontant, non mostrando grandi variazioni dettate dalla riduzione. Le variazioni di temperatura invernali indotte hanno determinato differenti risposte per i parametri oggetto di studio. Uno dei parametri maggiormente influenzati è la precocità di raccolta sia per le Remontant che per le Single cropping, più evidente in quest’ultime. I dati ottenuti dalla valutazione di genotipi coltivati secondo un uso sostenibile delle risorse indirizzano gli agricoltori nella scelta di adeguate pratiche agricole che valorizzino non solo la produzione ma anche la sostenibilità ambientale.
Evaluation of genotypes for sustainable resource use in strawberry cultivation
MARCELLINI, MICOL
2020
Abstract
The strawberry quality characteristic and its productive performance is influenced by several factors including genotype, environment and cultivation techniques. It is extremely important to analyze the plant behavior in relation to the factors previously listed within the productive and economic system of the strawberry cultivation. The research comes from the understanding of the response of the strawberry plant to the reduction of inputs (nutritional and water-related) and to the climate changing, through the analysis of the qualitative and vegetative parameters of different genotypes, cultivation techniques and growing areas. Three Single-cropping and three Remontant varieties have been studied in an experimental agricultural farm of central Italy. Another nine selections from the breeding program of the UNIVPM-D3A and a Spanish variety have been monitored in a private agricultural farm in the south of Spain. The study shows how a reduction of the water and nitrogen supplies can be applied without adversely affecting the quality and quantity of the fruit. The type of plant, the genotype, the growing period and the environment affect the reaction of the plant to the different quantity of water supplied. In this regard the Remontant varieties show an increased sensitivity compared with the Single cropping. In Spain it was found that a water supply applied in excess or in deficit can cause a vegetative and productive underperformance, resulting in an economic loss. According to the study on the nitrogen supply, the influence of the genotype effect is clear for the Remontant varieties, but great variations among them are not evident. The induction of the variation in winter temperature causes different responses for the parameters object of the study. One of the mostly influenced is the precocity of the harvest for Remontant and in particular for the Single Cropping varieties. The data generated from the evaluation of the genotype cultivated following a sustainable use of the resources, could lead the farmers in selecting the appropriate agricultural practices which can valorize not only the production, but also the environmental sustainability.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.14242/95678
URN:NBN:IT:UNIVPM-95678