1. The increasing rate of width and length of primary leaves decreased obviously after 10 days planting. The leaves got their maximum areas after 15 days while L. sative was just at the 3nd instar stage.
2. The increasing rate of width and length of primary leaves decreased obviously after 10 days planting. The leaves got their maximum areas after 15 days while L. sative was just at the 3nd instar stage.
