Pengaruh Pemberian Sitokinin Terhadap Pertumbuhan Palea dan Lemma Padi Melaui Kultur In Vitro
Abstrak: A research has been
carried out with the aims to: 1. study the influence of both the kind and
concentration of cytokinins on palea and lemma growth in in vitro culture; 2.
study the influence of palea and lemma age towards external application of
cytokinin in in vitro culture; and3. determine the best palea-lemma age, kind
and concentration of cytokinin which resulted the best growth of palea and
lemma in in vitro culture. The used experimental method was Completely
Randomised Design (CRD) with factorial treatment pattern. The applied treatment
consisted of three factors i.e. palea-lemma age (U): (55, 60, and 65 days after
planting); kind of cytokinin (S): (BAP and Kinetin); and Cytokinin
Concentration (K): (0, 5, 10, and 15 M) with 3 replications. The observed
variables were the palea and lemma growth with the parameters were palea-lemma
length and width. The results showed that the kind of cytokinin had influenced
the growth of palea-lemma in in vitro culture, and kinetin has better influence
on the palea-lemma growth. The age of the palea-lemma determined the
responsiveness of the palea-lemma towards external application of cytokinin.
Older palea-lemma showed less responsive than younger ones towards external
application of plant growth regulators. Moreover, the treatment combination
(U1S2K2) (10 µM Kinetin applied to 55-day-old rice palea-lemma) had the best
effect on increasing the size of palea-lemma of IR 64 rice.
Penulis: Kamsinah, Triani
Hardiyati, Sugiyono
Kode Jurnal: jpbiologidd090072
