From the results of the study of head size, temperature and duration of retention of head height. The number of per-unit cost and the number of trees. After a long cultivation for the last 6 months.
The effects of rhizome size, temperature and duration of storage of tubers per plant, plant height. Number of leaves per plant And the number of plants per clump After planting for 6 months.
The effect of size houa Phan variants, the temperature and the retention period houa Phan variants on plant height, leaf number per plant and number of early on, after planting plots for 6 months