Commercial Productivity in the Fourth International Asparagus Cultivar Trial at Azul, Argentina (2016)
A field trial was carried out at Azul (36°48',lat.S-59°51',long.O) consisting of asparagus hybrids Italo, Vittorio, Eros, Ercole, Giove, Franco, Chino, Early-California, UC-157, Patrón, NJ-1189, NJ-1123 and NJ-1192, planted on 16/11/2011 with density 23.810 plants.ha-1. Characters scored between 19/8/2016-17/11/2016 were: total fresh commercial productivity (TFCP), long and short spear fresh commercial productivity (LSFCP-SSFCP), total commercial spear number (TCSN), long and short commercial spear number (LCSN-SCSN), mean spear weight (MSW) and calibre distribution, CD (J: Jumbo; XL: Extra-Large; L: Large; M: Medium; S: Small y A: Asparagina). Spears were cut, selected (long: 22cm, short: 17cm), weighed, counted, washed and calibrated, and ANOVA-LSD (P≤0.05) employed. Overall mean values were: TFCP:5117,10 t ha-1, TCSN:284910 spears and MSW:18 g spear-1. For TFCP, Vittorio:6072, UC-157:6006, Eros:5885, Franco:5745, NJ-1123:5573, Early-California:5359 and NJ-1192:5284 kg ha-1 exceeded the mean. For LSFCP, UC-157:4250a, Vittorio:4134ab, Franco:4056ab, Eros:3978ab, NJ-1192:3861abc and Early-California:3744abc excelled and for SSFCP, NJ-1123:1985a, Vittorio:1983ab, Eros:1907abc, Italo:18174abcd, UC-157:1755abcde, Franco:1688abcde and Early-California:1615abcde. For TCSN, UC-157:356343, Patrón:341991, NJ-1192:324675, NJ-1123:308022, Franco:307671, Early-California:307359, Vittorio:306306, Ercole:300027 and Eros:289497 exceeded the mean. For LCSN, UC-157:230334a, Patrón:219336ab, NJ-1192:216996ab and Franco:200343abc excelled and for SCSN, NJ-1123:129012a, UC-157:126009a, Patrón:122655a, Early-California:111345ab, Eros:110175ab, Ercole:110019ab, Vittorio:109317ab, Italo:108342ab, NJ-1192:107679ab and Franco:107328ab. For CD, 48% were larger calibres and 43% smaller; the following performed well for J: NJ-1189a, Erosab, Gioveabc, for XL: Erosa, for L: Francoa, Erosa, Ercolea, Vittorioab, UC-157ab, Early-Californiaabc, NJ-1123 abc, for M: Ercolea, UC-157a, Patrónab, NJ-1123 abc, Francoabc and for S: Patróna. From these results, it can be discerned that (i) a group of five hybrids (Vittorio, Eros, and Franco =Italian), and UC-157 and Early-California =USA) were high performing for all three productivity measures (TFCP-LSFCP-SSFCP); (ii) an additional hybrid, Patrón, gave high spear number for all three measures (TCSN-LCSN-SCSN); (iii) the hybrids varied considerably in their calibre distribution; and (iv) the hybrids provided a range of different production options for existing and potential growers.
Castagnino, A.M., Diaz, K.E., Rogers, W.J., Tarantino, M.B., Marina, J. and Guisolis, A. (2018). Commercial Productivity in the Fourth International Asparagus Cultivar Trial at Azul, Argentina (2016). Acta Hortic. 1223, 45-50
Asparagus officinalis L. var. altilis, yield, spears, calibres, hybrids