Effect of different seed treatments on germination and seedling growth of Chironji (Buchanania lanzan Spreng.)

An experiment was conducted to study the effect of different seed treatments on germination and seedling growth of chironji (Buchanania lanzan Spreng.) carried out under propagation chamber at College Farm, College of Horticulture, Jagudan during October, 2022 to March, 2023 and laid out by Completely Randomized Design with three repetition and fifteen treatments viz., T1: Absolute control; T2: Water soaking for 24 hrs.; T3: Hot water treatment (99±1 °C for 10 second); T4: Hot water treatment (99±1 °C for 30 second); T5: Mechanical scarification (break seed coat by hammering); T6: H2SO4 @ 2.5% for 10 minute; T7: H2SO4 @ 5% for 10 minute; T8: GA3 @ 200 ppm for 24 hrs.; T9: GA3 @ 400 ppm for 24 hrs.; T10: Cow urine @ 10% for 24 hrs.; T11: Cow urine @ 20% for 24 hrs.; T12: Cow dung slurry @ 10% for 24 hrs.; T13: Cow dung slurry @ 20% for 24 hrs.; T14: Beejamrut @ 5% for 24 hrs.; T15: Beejamrut @ 10% for 24 hours. Among seed soaking treatments, maximum seedling height (8.72 cm and 13.51 cm) and number of leaves (6.53 and 7.80) were noted under treatment T8 (GA3 @ 200 ppm for 24 hrs.) at 90 and 150 DAS, respectively. Maximum fresh and dry weight of shoot (12.50 g and 3.50 g, respectively), fresh and dry weight of root (8.26 g and 1.56 g, respectively), root/shoot ratio (0.66) and survival percentage of seedling (60.00) were observed in treatment T8 (GA3 @ 200 ppm for 24 hrs.) at 150 DAS.