Performance of ginger grass (Lippia alba) for traits related to the production of essential oil

Scientia Agricola

Paula Yuri Yamamoto²  Carlos Augusto Colombo²  Joaquim Adelino Azevedo Filho¹  André Luiz Lourenção¹  Márcia Ortiz Mayo Marques²  Guilherme Domingues Da Silva Morais²  Alisson Fernando Chiorato¹  Antônio Lúcio Mello Martins¹  Walter José Siqueira² 

[1] ,IAC Centro de Pesquisa e Desenvolvimento de Recursos Genéticos Vegetais Campinas SP ,Brasil

关键词: G x E interaction;    phenotypic stability;    sustainable agriculture;    genetic breeding;    clonal selection;    interação G x A;    estabilidade fenotípica;    agricultura sustentável;    melhoramento genético;    seleção clonal;   

DOI  :  10.1590/S0103-90162008000500006

来源: SciELO

【 摘 要 】

Lippia alba (Verbenaceae) is a shrub whose essential oil has important biological, pharmacological, and aromatizing properties. To reach the sustained cultivation of new species with economic potential, the present study aimed to evaluate L. alba performance for fresh leaf matter (FM), leaf dry matter (DM), virus symptoms (VS - Cucumber mosaic virus, CMV), oil yield (OY), and oil chemical composition (OC), and to evaluate DM stability and adaptability. Ten genotypes of four chemical groups (chemotypes) were evaluated in six experiments designed as randomized blocks with two plants per plot, over the whole State of São Paulo, Brazil. A 2.0 x 0.4 x 1.6 m spacing was used in Monte Alegre do Sul and Pindorama, while a 1.0 x 0.4 x 0.6 m spacing was used in Campinas, where four experiments were established under different irrigation and fertilization conditions. The genotype effect was significant (p < 0.05) for all traits evaluated, with high leaf productivity of IAC-16 (citral chemotype), best OY means in the linalool and limonene/carvone chemotypes, and susceptibility of the latter chemotype to CMV. The genotype performance oscillations in the six environments were significant for FM and DM, and despite their significance for phytochemical traits (OY and OC), they were of low magnitude. No qualitative variation was detected for OC. The IAC-2 (linalool) and IAC-13 (limonene/carvone) genotypes showed high stability and wide adaptability, and are recommended to establish initial cultivations of this species. This research also indicated genetic sources to start Lippia alba genetic breeding programs.

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