Abstract:
This study was aimed to determine the yield responses of shallot varieties (Allium ascalonicum L.), to obtain the best dosage of goat manure, and the interaction between varieties and goat manures to the shallot yield. Factorial field experiment in a randomized complete block design with 3 replications was carried out in Nuni village, North Manokwari District, Manokwari Regency from July to September 2017. The treatments consisted of 7 shallot varieties (6 nationally introduced
varieties and 1 local variety) and 4 dosages of goat manure (0, 15, 20 and 25 ton/ha). Results indicated that there was no interaction between varieties and the dosages of goat manure in all parameters observed. On the other hand, a single factor of varieties significantly affected yield of shallot. The varieties of Tajuk and Bima Brebes adapted well to the local ecosystems by producing higher yield than other introduced and local varieties. In contrast, all yield components of a local variety was low. The use of goat manure showed a positive response to the yield in all of these shallots varieties. Yield increased to the increasing of goat manure dosages. The higher dose in this study (25 ton/ha) produced the best response in all yield components.