Figure 6. Proportion of shea rootstocks suitable for grafting 12 months after sowing in nursery. (a) Percentage of shea plants suitable for grafting 12 months after sowing following sowing depth; (b) Percentage of shea plants suitable for grafting 12 months after sowing following seed orientation (F: ANOVA test statistic; p: Probability value associated with the test; VH: Vertical seed orientation with the apical end upwards, VB: Vertical seed orientation with the apical end downwards, HH: Horizontal seed orientation with hilum upwards, HB: Horizontal seed orientation with hilum downwards, HL: Horizontal seed orientation with hilum sidewards, 5: sowing depth of 5 cm, 10: sowing depth of 10 cm, 15: sowing depth of 15 cm. Means assigned the same letter are not statistically significant at the 5% probability level)

From

Effects of Sowing Depth and Seed Orientation on the Germination and Seedling Growth in Shea Tree (Vitellaria paradoxa C.F. Gaertn.) for Rootstock Production in Nursery

YAO Saraka Didier Martial, DIARRASSOUBA Nafan, DIALLO Rokia, KOFFI Eric-Blanchard Zadjehi, DAGO Dougba Noël, FOFANA Inza Jesus

Research in Plant Sciences. 2021, 9(1), 13-22 doi:10.12691/plant-9-1-3