The effect of pillen seed storage time and application of humic acid on the growth of tobacco seedlings (Nicotiana tabacum L.)
Tobacco is one of the seeds that can be stored for a specified period. Seed storage is one of the ways in maintaining the viability of the seeds to meet the needs of the next planting period. Pillen seed technology has developed where in addition to increasing the size of seeds can improve the quality of seeds. Kaolin in pillen has an Al content which is suspected if absorbed by plants will inhibit the growth of tobacco seeds. Giving humic acid is expected to be able to play a role in binding Al so that the level of Al content in the soil can be lowered so as not to cause toxins to plants. This study aimed to determine the effect of pillen seed storage and the application of humic acid on the growth of tobacco seedlings. This study used the factorial of complete randomized design (RAL) 2 × 3. The first factor of the concentration of humic acid consisted of without humic acid 0 ml / l and liquid humic acid 6 ml/l. The second factor for the shelf life of the top seeds is 3, 8, and 13 years. Humic acid concentration of 6 ml could support the growth of the tobacco seedlings.