Abstract
ABSTRACT The present study aims to determine the appropriate defoliation management for the production of seeds and forage in arrowleaf clover via trail analysis. The results obtained demonstrated that defoliation practices have a great influence on the composition of seed yield and germination power. In addition, when the goal is the maximum balance between dry matter production and seed yield, this can be achieved in up to two defoliation practices. These results are confirmed by analyzing the positive association between the weight of a thousand seeds and the seed yield. When the third defoliation practice is performed, it negatively correlates with the weight of a thousand seeds, suggesting that, with the increase in defoliation frequency, there is a lower weight of a thousand seeds, and, therefore, lower seed yield. Therefore, management planning in Trifolium vesiculosum Savi that aims at natural reseeding, maximum yield and seed germination must prioritize one to two defoliation practices, aiming to promote favorable conditions for the perennialization of the species. In this context, the trail analysis proved to be a useful tool as a criterion for obtaining the ideal management aiming at the production of seeds and forage in vesicular clover.
Highlights
IntroductionThe genus Trifolium (Fabaceae) includes about 300 species, and some with potential for use in crop rotation systems (Butkutė et al, 2014)
The introduction of legumes is an alternative to make Integrated Agricultural Production Systems (IAPS) more sustainable (Skonieski et al, 2011).The genus Trifolium (Fabaceae) includes about 300 species, and some with potential for use in crop rotation systems (Butkutė et al, 2014)
The present study aims to determine the proper management of defoliation for the production of seeds and forage in arrowleaf clover by means of correlations and path analysis
Summary
The genus Trifolium (Fabaceae) includes about 300 species, and some with potential for use in crop rotation systems (Butkutė et al, 2014). They favor the increase of soil fertility, It has long been known that forage species have the capacity to adapt to maintain productivity and persistence, resulting from applied management strategies (Davies, 1988). In many cases, an efficient combination of defoliation and seed production can be achieved, without forgetting that this management practice is carried out, basically, as a support management for more efficient seed production (Ovalle et al, 2010). In forage species, where biomass production is the main objective, efforts to increase the efficiency of seed production are still neglected (Martiniello and Silva, 2011)
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