Uji Cepat untuk Padi Toleran Suhu Rendah Menggunakan Thermogradientbar
Abstract: Quick Evaluation for
Cold Tolerant Line By Using Thermogradientbar. Lowtemperature stress was the
main obstacle for rice growth in high elevation. Low temperaturestress greatly
affect the vegetatif growth stage and generatif. There were required screening
/quick test to determine the tolerance genotype for low temperature stress.
Thermogradientbaris one quick screening tool that could potentially be used in
the rice in the vegetatif phase.This study aimed to evaluate quickly for getting
the tolerant rice lines on low temperaturestress. The study was conducted in
November-December 2015 Biology Laboratory, LIPI. Atotal of 15 lines of upland
rice and 3 checks were used in the testing. Gradient temperature
onthermogradientbar tool were 12, 17, 18, 21, 22, 25, 26, 28, 31 oC. Seeds of
each strain testedwith 5 replications. The number of replicates results show
low temperature stress began tolook at the temperature of 18 oC. Genotype G3
(B12165D-MR-8-1-1-2), G4 (B11910D-MR-22-2), G5 (B14217F-MR-1), and G6 (
B14168E-MR-5) were a sensitive genotypes at atemperature <18 oC and a real
contrast to the check-resistant white Sigambiri. StrainB12165D-MR-8-1-1-2 is
the most sensitive by 23:14% germination.
Penulis: WAGE R. ROHAENI
Kode Jurnal: jppertaniandd160399
