What is the best time for thinning and final thinning of sesame seedlings?

(Agricultural Wealth Network) Thinning should be done early rather than late, especially the first thinning; if done late, the seedlings quickly become spindly, so thinning should be carried out when the first pair of true leaves appears. Thinning for the first time at the first pair of true leaves can increase yield by more than 20% compared with thinning for the first time at the third or fourth pair of true leaves, which shows that early thinning can increase yield. The second thinning is carried out at the second or third pair of true leaves, and final thinning is generally done at the fourth or fifth pair of true leaves.