ROGERS William john
congresos y reuniones científicas
Productivity of a trial of thirteen asparagus genotypes in their eighth year within the IV International Asparagus Cultivar Trial (ISHS)
CASTAGNINO A.M.; DÍAZ, K. E.; ROSINI, M.B.; BENSON, S.; BASTIEN, E.; GARCÍA FRANCO, A.; ROGERS, W.J.
Simposio; 15th International Asparagus Symposium; 2022
International Society for Horticultural Science
Asparagus is an interesting productive diversification alternative in countries of the southern hemispherefor production in counter season. Since it has great genotype-environment interaction andis a perennial crop, to be incorporated into productive systems, it is necessary to carry out a properselection of the genotype to be grown. In order to evaluate the behaviour of thirteen hybrids ofgreen and purple asparagus in the stable productivity stage, a trial was started on 16/11/2011within the Fourth International Asparagus Cultivar Trial (ISHS), in the Experimental Unit, Facultadde Agronomía, UNCPBA in Azul, Argentina (36°48lat.S-59°51,long.W), evaluating: Ítalo; Vittorio;Eros; Ercole; Giove; Franco; Chino; Early-California; UC-157; Patrón; NJ-1189;NJ-1123 and NJ-1192, with a density: 23,810 pl.ha-1; DBCA, with 4 repetitions, and area 1690 m2.Commercial productivity of top quality was studied (18/09/201912/11/2019), quantifying totaland commercial fresh production (PFBT and PFCT), in t.ha-1, obtained by two cutting lengths: 22 and17 cm (PFC-L and PFC-C), total number of commercial turions (NTCT), long and short (NTC-L-NTC-C);distribution of calibers (J: Jumbo; XL: Extra-Large; L: Large; M: Medium; S: Small and A: Asparagina);waste (DE: sprouted; MC: very short and OD: other defects), carrying out 27 harvests. Variance analysisANOVA-LSD test (P≥0,05) was performed. Total productivity was 8.40 t.ha-1 and commercial: 5.9t.ha-1 and in turions: 525,233 total and 281,000 commercial. In PFC-L: 3.42 t.ha-1 and PFC-C: 2.52t.ha-1; NTC-L:159900 and NTC-C: 120700; with a percentage of second quality and waste: 46.5 andaverage number of turions.pl-1: 10 g. In PFCT: Franco:7.7a; NJ-1192: 7.3ab; NJ-1123: 6.4abc, Giove:6.2abc; Ítalo: 6.1abcd; Eros: 5.9abcd; Vittorio: 6.9abcd t.ha-1 were observed, respectively. InNTCT:Giove: 340000; NJ-1123: 336000 and Franco: 316000 turions.ha-1. In general, genotypes Franco andNJ-1123 were promising due to their productivity.