NORA AUGUSTIEN*, IDA RETNO MOELJANI, SUTINI AND AISYAH ANGGUN CAHYANI
Agrotechnology Study Program, Faculty of Agriculture, UPN “Veteran” East Java
*(e-mail : nora_a@upnjatim.ac.id; Mobile : 6281330163359)
(Received : September 20, 2019; Accepted : November 15, 2019)
ABSTRACT
Kawista plants are well adapted to dry areas and sandy soils. Kawista propagation can be done through vegetative and generative. The success of kawista nurseries is determined by the results of vigour sprouts. Therefore, it is necessary to research breaking kawista seed dormancy using a chemical method that is KNO3 by priming concentration and duration. The purpose of this study was (1) to find out the interaction between KNO3 concentration and KNO3 priming duration for kawista nurseries, (2) to determine the optimal
KNO3 concentration for kawista nurseries and (3) to determine the optimal KNO3 priming duration for kawista nurseries. This research used a factorial completely randomized design (RAL) with three replications. The first treatment was KNO3 concentration (K) with treatment level K0 = 0%, K1 = 0.5%, K2 = 1% and K3 = 1.5%. Treatment of priming duration of KNO3 (L) with treatment level L1 = 6 h, L2 = 12 h and L3 = 24 h. The statistical test used was the Least Significant Difference test (HSD) at 5%. The results showed that concentration of KNO3 (1%) with KNO3 priming duration (12 h) did not show interactions in kawista nurseries. Each treatment, KNO3 concentration (1%) and priming time (12 h) showed the best response to the observed variables of seedling height, number of leaves and root length. Correlation was found in the length of the radicals and root length.
Key words : Kawista, concentration, priming duration, germination