The Success Rate of Red Onion (Allium ascalonicum L.) Crosses in the Lowlands Area of Jember

Kurniasari, Leli and Siswadi, Edi and Dini, FS (2021) The Success Rate of Red Onion (Allium ascalonicum L.) Crosses in the Lowlands Area of Jember. Food and Agricultural Sciences: Polije Proceedings Series, 3 (1). pp. 7-9.

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Abstract

Shallots (Allium ascalonicum L.) are vegetable plants that use as spices and cannot be subtituted. The existing shallot varieties are generally not yet able to adapt to climate change or the altitude of the planted area and are still susceptible to important diseases. Therefore it is necessary to make efforts to obtain superior red onions that are adaptive to climate change and tolerant of important diseases. Red onion crossing is one way to expand genetic diversity, and combine the desired characters so that new populations are obtained as selection material in the assembly program for new superior varieties of shallots. Crosses in this study use local varieties of East Java. Bauji variety is one of the local shallot varieties in East Java which is adaptive in lowland areas, can be planted in the rainy season, and tolerant of diseases. Tajuk variety is also a local East Java variety with the advantage of being able to adapt to the dry season and to withstand the rainy season. The aim of this study was to determine the success rate of crossing two shallot varieties in order to produce an adaptive lowland variety of shallot and tolerant of important shallot diseases. The research was conducted in the Antirogo experimental garden at an altitude of 89 asl from August to November 2020. The study used a non-factorial randomized block design with three replications.

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