Karakterisasi Galur Haploid Ganda Hasil Kultur Antera Padi

Iswari S. Dewi • Ari C. Trilaksana • Tri Koesoemaningtyas • Bambang S. Purwoko
Journal article Buletin Plasma Nutfah • Juni 2009


New genetic variation in rice can be obtained by crossing between subspecies of rice (Indica, Japonica, and Javanica). Variability is a must in breeding materials. The objectives of this research were to evaluate morphological and agronomical characters of doubled-haploid lines derived from anther culture of F1 and to determine maternal effect from reciprocal crosses. The materials used in the experiment were 144 haploid lines derived from anther culture of F1 obtained from reciprocal crossing between Asemandi/Taipei 309 and Taipei 309/ Asemandi. Asemandi belongs to O. sativa subspecies Javanica, whilst Taipei 309 is subspecies Japonica. Evaluation on morphological and agronomical characters was based on Standard Evaluation System for Rice from IRRI. The results indicated that agronomical characters between haploid lines were varied, but individuals in lines were similar as shown by all morphological and agronomical characters. New characters were also found in leaf and stem angle, awn existence, awn length, awn color, panicle type and exertion, axis type, secondary branch of panicle, and grain type. Maternal effect could be seen only in booting stage, number of sterile tillers and percentage of fertile tillers. Based on number of fertile tillers, number of fertile spikelets, fertility, weight of 100 grains and yield/plant, A/T 12, A/T 57, A/T 200, A/T 274, A/T 282, A/T 321, A/T 333, A/T 348, A/T 399, A/T 75a, and T/A 258 were potential lines to be further selected.


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