Abstract:

To study its consequences for various fruit traits in Siraitia grosvenorii, the effect of seven pollen genotypes and seven female parents on 3 critical quality indexes of fruits was studied. Xenia effects greatly affected fruit quality of Siraitia grosvenorii by experiment and statistical analysis. Five of seven female lines had xenia effect on mogrosidesⅤ, total sugar, and water extract content. In combinations of a same female line the most variance range of the 3 indexes was 21.05%, 38.37% and 20.97%, respectively. Indexes and strength of xenia effects were various in the female lines. The potential to improve quality of the fruits was great by selecting and combining of female and male lines. However, any male line had not same positive or negative xenia effects for different female lines. Furthermore, xenia effects on fruit shape, fruit size, fruit set percentage, development period and water-content in Siraitia grosvenorii were not significant. Anyway, utilization of xenia effects was invaluable in fruit production of Siraitia grosvenorii.

Key words: Siraitia grosvenorii, xenia effect, pollination combinations, fruit quality