Resumo

RISSO, Andrés Alberto et al. Productivity and quality of four hybrids of green asparagus (Asparagus officinalis L. var. altilis) in a greenhouse. rev.colomb.cienc.hortic. [online]. 2012, vol.6, n.1, pp.55-66. ISSN 2011-2173.

Asparagus is an alternative crop that requires management optimization of the different links of the production chain as well as of the strategies to extend its supply year round. The objective of this paper was to evaluate some strategies to optimize the asparagus production chain. Net productivity (PFN), number of commercial turions produced (NT) and distribution of different sizes (jumbo, extra large, large, medium, small y asparagina) were evaluated in a greenhouse with Italian male genotypes: H668, Marte and Giove and the American control UC157. The post-harvest behavior was compared by evaluating the development of fresh weight by means of different evaluation alternatives: length of turions and presentation (ACF: bunch with film and ASF: bunch without film); with an initial weight of 500 g. A multifactor ANOVA LSD analysis test was carried out. For PFN: 'Giove' 5096.5 kg ha^-1, 'UC157' 5062.5 kg ha^-1, 'H668' 3187.5 kg ha^-1, and 'Marte' 2,043.5 kg ha^-1 were obtained. For NT: 'UC157' 322,300 kg ha^-1, 'Giove' 267,500 kg ha^-1, 'H668' 240,000 kg ha^-1, and 'Marte' 166,250 kg ha^-1 stood out. For post-harvest, the use of film allowed for better turion conservation, shown by the lower decrease of fresh weight: ACF 201.73 g and ASF 299.21 g. 'Giove' and 'UC157' performed better, conserving 264.82 and 267.25 g, respectively. Short turions lost more fresh weight (22 cm: 228.13 y 12 cm: 272.81 g, respectively). The attained productivity, the anticipated and adequate conditioning are encouraging for this vegetable.

Palavras-chave : turions; yield; post harvest; calibers.

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