Identifikasi Papasan (Coccinia grandis (L.) Voigt) di Tiga Populasi di Yogyakarta

Ridesti Rindyastuti, Budi Setiadi Daryono
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Species Identification of Scarlet gourd (Coccinia grandis (L.) Voigt) in Three Population in
Yogyakarta. Papasan is a dioecious plant belongs to the family Cucurbitaceae. This plant is
commonly used as vegetable, anti diabetic, anti bacterial, and anti diarrhea. In Daerah Istimewa
Yogyakarta, there were two varians of Papasan (Papasan I and II), found in three population
(Ngebel, Berbah and Gajah Wong Riverbank). They differ in phenotype, especially in shape
and taste of fruit. Genotype observation using squash method on the root tips with modification
in the duration of maceration were used in this research indicated that cells devided of Papasan
I at about 8-11.30 a.m, while Papasan II at about 08.30-09.30 a.m, 11 a.m-00.30 p.m and 2-2.30
p.m. The chromosome number of both Papasan is 2n=24, contains of 22 autosomes and 2 sex
chromosomes. The karyotype formulas of Papasan I and II were 2n=24=20m+2sm+XX(m).
Based on the statistic test, significant difference on chromosomes character between Papasan
I and II was only in short arm of autosome pair number 5. The difference R value between
Papasan I and II was smaller than 0.25. It revealed that the both of Papasan is closely related
and belongs to the same species of Coccinia grandis L. Character differences between both
of Papasan only revealed physiology adaptation.
Keywords: Coccinia grandis L., Papasan, Chromosome, Karyotype.
Kata kunci: Coccinia grandis L., Papasan., Cromosom, Kariotype.

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