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Abstrak :
ABSTRAK
Ficus yang dioecious memiliki dua individu seks yang sangat sulit dibedakan melalui ciri-ciri eksternal, kecuali saat Ficus berbunga atau berbuah Sebuah studi mengenai morfologi bunga Ficus yang dioecious di Universitas Indonesia (UI), Depok telah dilakukan dari bulan Maret 2012 sampai April 2012. Penelitian ini bertujuan untuk mengetahui morfologi bunga dari 4 (empat) spesies Ficus yang dioecious di ruang terbuka hijau kampus UI. Penelitian ini juga memeriksa hubungan di antara karakter-karakter kuantitatif dari bunga. Sebanyak total 8 (delapan) pohon, 8 (delapan) sikonia dan sekitar 750 bunga telah dipilih untuk menjadi sampel. Setiap bunga diukur dengan mikrometer okuler untuk karakter kuantitatif bunga, dan pada saat bersamaan morfologi bunga dari setiap spesies dibandingkan. Kunci karakter reproduktif dalam mengidentifikasi 4 (empat) spesies Ficus yang dioecious di kampus UI adalah jumlah stamen, bentuk stilus dan stigma, serta bentuk perhiasan bunga (tepal) dari bunga bersari dan bunga berputik. Berdasarkan koefisien korelasi Pearson dan koefisien variasi (KV), hubungan di antara ciri-ciri bunga di keempat spesies menunjukkan bahwa panjang pedisel terlihat merespon terhadap perubahan di dalam semua ciri-ciri bunga, terutama pada stilus dan leher sehingga seluruh bunga mencapai ketinggian yang sama. Karakter-karakter yang lain memiliki KV yang rendah, menunjukkan karakter-karakter tersebut tidak bervariasi di dalam sikonium dan kurang berkontribusi di dalam pertumbuhan yang seimbang.

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Abstract
In functionally dioecious fig species, it is quite difficult to distinguish individuals of the two sexes from external characteristics, except when they are in flower or fruit. A study on flower?s morphology of dioecious figs of the Universitas Indonesia (UI), Depok has been done from March 2012 until April 2012. The objective of this study was to know the flower?s morphology of four dioecious figs Ficus hispida, F. septica, F. hirta and F. montana available in open area of UI. This study also examined the relationship among the quantitative of flower?s characters. A total of eight fig tress, eight figs and about 750 flowers in UI were chosen to be sampled. Each flowers were measured at ocular micrometer for their quantitative characters and at the same time morphology of fig flowers of all fig species were compared. The key of reproductive character to identify four dioecious species of figs available in UI, Depok are number of stamen, style and stigma shape, and perianth (tepal) shape of staminate and pistillate flowers. Based on correlation coefficients of Pearson and coefficient of variation (CV), relationship among the flower characters show that pedicel length, both in gall figs and seed figs, appeared to compensate greatly for changes in most of floral features such that all flowers reached a common height. Other characters had very low CV?s, suggesting their relative invariance within the syconium and possibly poor condition to the compensatory growth.

Abstrak :
Objective of the study is to elucidate phenotype characters of nile tilapia (Oreochromis niloticus) of the third generation (G3) resulted from the selection breeding program in the research institute for freshwater aquaculture Bogor....