Genetic gain in oil productivity from breeding program of Cajuput (Melaleuca cajuputi subsp. cajuputi) in Indonesia
| Autor: | Noor Khomsah Kartikawati, Arif Nirsatmanto, Anto Rimbawanto, Sumardi, Prastyono, Sri Sunarti, Asri Insiana Putri, Liliek Haryjanto, Toni Herawan, Fajar Lestari, John Doran |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Forest Science and Technology, Vol 19, Iss 4, Pp 309-314 (2023) |
| Druh dokumentu: | article |
| ISSN: | 21580103 2158-0715 2158-0103 |
| DOI: | 10.1080/21580103.2023.2268413 |
| Popis: | AbstractA long-term breeding program of cajuput (Melaleuca cajuputi subsp. cajuputi) in Indonesia has aimed to increase oil productivity and quality through imposing selection for oil yield and 1,8-cineole content. This study examined the realized genetic gain for the two key variables of oil yield, oil concentration and leaf biomass. Data were collected from a trial based on seeds collected from two unimproved, and two improved sources with selection intensities (IS) of 1.1 (10% of trees selected) and > 2.5 (2.5 seed source was significantly higher than for the other sources; a realized genetic gain ranging from 14% to 31%. However, although not significant, this seed source had the lowest leaf biomass. The correlation between gains in oil concentration and leaf biomass was weak and not significant (r = 0.15); while the correlation between oil yield and leaf biomass was very strong and highly significant (r = 0.96). These results highlight the importance of carefully incorporating leaf biomass as a selection criterion in cajuput breeding programs aimed at increasing oil yield. |
| Databáze: | Directory of Open Access Journals |
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