<p style="text-align: justify;">The experiment was conducted to study the adaptability of ten introduced wheat genotypes in Bogor, held at SEAMEO BIOTROP Experimental Field, Tajur, Bogor in March-July 2011. Experiments using Randomized Completely Block Design, single factor and three replications. The factor was genotype consisting of wheat genotypes introduced from India (OASIS / SKAUZ / / 4 * BCN-Var 28, HP 1744, LAJ/MO88, RABE/MO88), Turkey (Basribey, Alibey and Menemen), CIMMYT (G-21, G-18 and H-21), as well as two national varieties (Dewata and Selayar) as a control. The results showed that the varieties significantly affect the overall character except number of tillers and number of productive tillers. Menemen is introduced genotype that showed better or no different performance for almost all the characters than Dewata and Selayar as controls.</p><p>Key words: Dewata, low altitute, Menemen, Selayar</p>

Febjislami S, Kurniawati A, Melati M, Wahyu Y. 2019. Morphological characters, flowering and seed germination of the Indonesian medicinal plant Orthosiphon aristatus. Biodiversitas 20: 328-337. Orthosiphon aristatus (Blume) Miq is a popular medicinal plant in Southeast Asia. The morphological variation of O. aristatus is narrow and information on flowering and seed germination is limited. This study aimed to determine the morphological characters, flowering and seed germination of O. aristatus. The study was conducted on 19 accessions (ex situ collections) of O. aristatus from West, Central and East Java. It was found that the differences in morphological and flowering characters were mainly based on shape and color. The dominant stem color is strong yellowish green mixed with deep purplish pink in different proportions. The dominant leaf shape was medium elliptic. O. aristatus flower has three kinds of colors: purple, intermediate and white (the most common color). O. aristatus has heterostyled flower with a long-styled morph. The stigma has two shapes: open and close (the dominant shape). The open and close stigma was found in Tuban accession, the open stigma was found in Pamekasan accession. O. aristatus accessions have a narrow diversity of 84% similarity rate. O. aristatus started flowering at 4-5 weeks after planting and blooming 2-3 weeks later. O. aristatus seeds begin to germinate on the fourth day and take about eight days to grow from seedling to become complete sprouts. Count I ranged from day 5-6 and count II on days 10-11. Tuban accession has the highest germination rate of 72.97%. The results of this research can be considered as new information, regarding information about the diversity of morphological, flowering characters and the ability of O. aristatus seed to germinate.

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Pedigree selection is a method of selection used in segregating populations which takes the expertise of breeders in achieving the desired goal. This method is implemented on the early generations with a high degree of segregation and is generally performed on highly heritable traits. The purpose of this research was to study the performance of F3 generation segregants and to estimate the genetic parameters to be used for identification and selection of wheat segregants under optimum environmental condition. The research was carried out at the experiment field of  Research Institute for Ornamental Crops, in Cipanas from May to September 2012. Genetic material used were 58 F3 family and six check varieties, namely  Dewata, Selayar, Oasis, Rabe, Basribey, and HP 1744. The experiment used an augmented design. Results of analysis of variance showed that the family effect was significant for days to flowering, days to harvest, percentage of empty florets, number of grains per panicle, grain weight per panicle, number of seeds per plant and seed weight per plant. High heritability estimates were  found in days to flowering, days to harvest, seed filling period, percentage of empty florets, number of grains per panicle, grain weight per panicle, number of seeds per plant, and seed weight per plant. These characters are suitable for yield improvement of tropical highland wheat due to its high heritability values. The mean value of F3 generation changes subsequent to selection either based on grain weight per plant, or based on  number of productive tillers,  number of grain per panicle, and grain weight per plant. <br />Keywords: selection criteria, segregation, tropical, yield

The cultivation of wheat in Indonesia especially at medium-low altitude faces problems such as high temperatures whicheffect negativelyon the yield. The aims of this research was to obtain informations on performance PENDAHULUANGandum (Triticum aestivum L.) merupakan tanaman alloheksaploid yang berasal dari daerah subtropis. Menurut Nur (2013) pengembangan gandum di Indonesia selama ini diarahkan pada dataran tinggi dengan ketinggian > 800 m di atas permukaan laut (dpl) dengan suhu sekitar 22-24 o C. Apabila gandum dibudidayakan di dataran tinggi maka akan bersaing dengan komoditas sayuran dan tanaman hortikultura.Terbatasnya jumlah varietas gandum yang mampu beradaptasi dengan baik di dataran tinggi Indonesia juga merupakan kendala dalam usaha produksi gandum sehingga upaya untuk menghasilkan varietas gandum masih diperlukan. Sejauh ini, Indonesia telah memiliki tiga