ONION GENOTYPE SKILLS IN DIFFERENT PLANTING SYSTEMS

Gabriel Mascarenhas Maciel,Maurício Pivetta Momesso,Igor Matheus Alves,Igor Forigo Beloti,Guilherme Repeza Marquez,Ariel Santivañez Aguilar

doi:10.28998/rca.v17i2.5281

Gabriel Mascarenhas Maciel, Maurício Pivetta Momesso + Show 4 more

Open Access

https://doi.org/10.28998/rca.v17i2.5281

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Abstract

Currently, planting onion through seedling production is predominant in the state of Rio Grande do Sul. Thus, the present work aimed to evaluate the agronomic potential of new onion genotypes as a function of the planting system for this region. Eleven genotypes were evaluated, as follows: “commercial genotypes” Bola Precoce, Mulata, Sprint, Suprema and “pre-commercial genotypes” TE 201, TE 209, TE 216, TE 230, TE 242, TE 316 and TE 329, submitted to four planting systems: seedling production, seedling production with leaf pruning before transplanting, no-tillage manually planted at the definitive site and seedling production in trays. Treatments were arranged in an 11 x 4 factorial scheme (eleven genotypes and four planting systems). Although little practiced, the no-till system for onion cultivation for the northwestern region of Rio Grande do Sul can potentially be explored. Genotypes that best adapted to this system were: Bola Precoce, Suprema, Sprint, Mulata and TE 201. Comparatively, “commercial” genotypes showed an increase of 10.81 t ha-1 in relation to “pre-commercial” genotypes in the no-till system, proving the efficiency of this system.

Highlights

Among vegetables grown in Brazil, onion (Allium cepa L.) is the third most important in both job creation and volume produced
All genotypes were submitted to four planting systems as follows: Seedling production and subsequent transplanting at 75 days after sowing (PMS), which is predominantly used by onion producers in the state of Rio Grande do Sul (Filgueira, 2008), seedling production, seedling with leaf pruning before and after transplanting at 75 days after sowing (PMP), no-tillage manually performed at the definitive site (PD) and seedling production in polystyrene trays containing 200 cells and subsequent seedling transplantation at 47 days after sowing (PMB)
The different planting systems influenced the expression of the agronomic potential among the different genotypes evaluated in northwestern Rio Grande do Sul (Table 3)

Summary

Introduction

Among vegetables grown in Brazil, onion (Allium cepa L.) is the third most important in both job creation and volume produced. All genotypes were submitted to four planting systems as follows: Seedling production and subsequent transplanting at 75 days after sowing (PMS), which is predominantly used by onion producers in the state of Rio Grande do Sul (Filgueira, 2008), seedling production, seedling with leaf pruning before and after transplanting at 75 days after sowing (PMP), no-tillage manually performed at the definitive site (PD) and seedling production in polystyrene trays containing 200 cells and subsequent seedling transplantation at 47 days after sowing (PMB).

Results

Conclusion