ROGERS William john
congresos y reuniones científicas
Early greenhouse production of male genotypes of green asparagus (Asparagus officinalis var. altilis L.) in their seventh year since planting in Buenos Aires, Argentina
CASTAGNINO A.M.; TOBIO, M.; RUARTE, V.; DIAZ, K.E.; BENSON, S.; ROSINI, M.B.; TARANTINO, M.B.; ROGERS, W.J.
Simposio; Simposio. VII South - Eastern Europe Symposium on Vegetables and Potatoes; 2017
Asparagus comprises an interesting productive option, given growing global demand and the opportunity the crop offers for early seasonal production, as well as its cultivation in the greenhouse. In order to evaluate the behaviour, in their seventh production year, of the Italian genotypes Italo, Zeno, Eros, Ercole, H-668, Marte and Giove, compared with the North American genotype UC-157 as control, a greenhouse trial was initiated on 15/11/2006 by means of seedlings transplanted at a spacing of 1 m x 0.3 m. Thirty-five harvests were performed between 21/08/2013 and 16/10/2013. The characters studied were: total and commercial production of the different hybrids (TFP and CFP), total and commercial number of turions ha-1 (TTN and CTN) and calibre distribution (CD): Jumbo (J), Extra-Large (XL), Large (L), Medium (M), Small (S) and Asparagin (A) were studied. Analysis of variance was performed and means were compared using the LSD test (P≤0.05). For TFP, the cultivars Italo: 25800(a), Zeno:15900 and Giove:12400(b) stood out from the rest, followed by UC-157: 7400; Ercole: 7000 and Eros: 6800(c); H-668: 5100(cd) and Marte: 3100(d), whereas for CFP, Italo: 13400(a) stood alone, followed by Zeno: 7200 and Giove: 6400(b); UC-157: 4000; Ercole: 3100 and Eros: 3300(cd); H-668: 1900(d) and Marte: 1700(d). For TTN, Italo:1155000(a) again stood out, followed by Zeno: 557515(b); Giove: 542500(bc); H-668: 457485 and Eros: 447510(bcd); Ercole: 402500(cd); UC-157: 347515; Marte: 194985(e); for CTN, Italo: 822500 (a) similarly outperformed the rest, followed by Giove: 367500; Zeno: 325010(b), UC-157: 227500(c), Eros: 207515(cd), H-668: 172515(cd), Marte: 120015(d). For DC, J, L, M and S Italo(a) again showed superior performance, whereas for XL and A there was homogeneous calibre production. It can therefore be concluded that the cultivar Italo was the best option amongst the hybrids tested.