Open AccessThe mechanical and chemical scarification to break dormancy and increasing vigor of Sunan candlenut seed
Author(s) -
Esty Puri Utami,
E Santika,
Cecep Hidayat
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/694/1/012028
Subject(s) - scarification , dormancy , seedling , sowing , germination , horticulture , cracking , biology , agronomy , botany , materials science , composite material
The objective of this research is to identify a treatment that can break the dormancy and increase the vigor of candlenut seed (Reutealis trisperma (Blanco) Airy Shaw) seedling. Treatments were mechanical scarification and chemical scarification. Mechanical scarification was control (S0), cracking (S1), filing (S2), and sanding (S3). Chemical scarification was control (T0), immersion in 10% HCl (T1), 10% H2SO4 (T2), and 10% KNO3 (T3) for 20 minutes. Soon after treatment, the persistence of seed dormancy (weeks), speed growing (% etmal −1 ), and height of the seedling were observed. Cracking the seed was showed the highest growth rate among all treatments (2,44 % etmal −1 ). Mechanicals and chemicals scarification were effective to break seed dormancy. Persistence of seed dormancy mechanical and chemical scarification various between 3-5 weeks, meanwhile the control was 7 weeks. Seedlings with the treatment combination of cracking and soaking with 10% KNO3 were the highest in 1, 3, and 5 weeks after planting.