Evaluation of Agronomic and Quality Traits of Guangxi Garlic Landraces
This project aims to comprehensively evaluate the local garlic varieties in Guangxi.This experiment used 15 local garlic varieties in Guangxi as materials to carry out the field product comparison,quality identification and allicin content determination.At the same time,the agronomic traits,quality characters and allicin content of garlic varieties were comprehensively evaluated by principal component analysis and correlation analysis.13 agronomic traits of 15 garlic varieties tested had rich variation in bulb number and single bulb weight.The dry matter rate,content of soluble protein and soluble sugar was 17.43％-29.77％,3.88-6.81 g/100 g and 5.18％-21.77％,respectively.The content of amino acid in 15 varieties was 2.84-4.54 g/100 g,in which the content of essential amino acids was 0.80-1.14 g/100 g.The content of allicin in each variety was 1.60-7.62 g/kg detected by gas chromatography.Five main factors were extracted by principal component analysis,and the cumulative contribution rate reached 84.853％.The correlation analysis showed that allicin content was significantly negatively correlated with plant height and leaf length,and significantly positively correlated with soluble protein content and amino acid content.Through comparative analysis,there were great differences in nutritional and functional components among different garlic varieties.'Rendong Xiangsuan'and'Sanyuesuan'had obvious advantages in nutritional quality and allicin content respectively.The results can provide a theoretical basis for the selection of garlic varieties and their further processing and utilization in Guangxi.
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