Curcin Content of Jatropha curcas Seeds and Its Correlationship with Seed Traits in Dry-hot Valley of Jinsha River

Abstract:

Curcin content and some seed traits of Jatropha curcas seed collected from Dry-hot Valley of Jinsha River were determined. The results showed that curcin content by Enzyme-linked immunosorbent assay ranged from 0.275 to 3.183 mg g^-1 with average of (1.369±0.055) mg g^-1. Pearson correlation analysis indicated that curcin content had no significant correlations with some seed traits, such as seed weight, kernel weight, oil content, seedkernel rate and soluble protein content. There were a certain negative correlation between curcin content and seed weight, kernel weight and oil content, on the contrary, curcin content had a certain positive correlation with seedkernel rate and soluble protein content. It suggested that germplasm collection and breeding with high curcin content of Jatropha curcas could perform in Dry-hot valley of Jinsha River, and breed new variety with high oil and curcin contents of Jatropha curcas, so as to improve comprehensive efficiency of Jatropha curcas biofuel industry.