<p>Uji adaptasi dilakukan untuk mengestimasi interaksi antara Genotipe dengan Lingkungan, sehingga dapat ditentukan apakah genotipe yang diuji adaptif pada lingkungan yang spesifik atau stabil pada lingkungan yang luas. Tujuan pengujian ialah mendapatkan informasi tentang stabilitas hasil cabai hibrida yang ditanam pada tiga lokasi di Jawa Barat. Pengujian ditata dengan menggunakan Rancangan Kelompok Lengkap Teracak pada tiga lokasi pengujian yaitu di Kab. Bandung, Kab. Bandung Barat dan Kab. Garut. Populasi tanaman untuk tiap-tiap plot penelitian ialah 30 tanaman  dengan empat ulangan. Hasil analisis ragam gabungan terlihat bahwa nilai kuadrat tengah genotipe lebih tinggi dari nilai kwadrat tengah interaksi genotipe x lingkungan hal ini memberikan indikasi bahwa pengaruh genetik lebih dominan dibandingkan faktor lingkungan. Varietas (genotipe) yang diuji berbeda sangat nyata sehingga menunjukkan adanya perbedaan potensi hasil diantara varietas dan terjadi interaksi antara genotipe dengan lingkungan. Genotipe stabil berdasarkan perhitungan MSTATC ialah H-1 dan  Cosmos. Genotipe Batalion dan Merona tidak stabil karena nilai T hitung lebih besar dari T tabel sementara Genotipe H 2 dan Hot Beauty tidak stabil karena hasil dibawah rerata. Implikasi dari penelitian ialah didapatkan informasi genotipe cabai yang stabil pada agroekosistem dataran tinggi Jawa Barat.  </p><p><strong>Keywords</strong></p><p>Genotipe cabai hibrida (<em>Capsicum annuum</em>); Adaptasi; Stabilitas; Jawa Barat</p><p><strong>Abstract</strong></p><p>An adaptation test was carried out to estimate the interaction between genotypes and the environment, to be able to determine whether the genotypes tested were adaptable in a specific or stable in a wide range of environments. The objective of this study were to obtain the stability level of the hybrid chili tested at three highland West Java locations. The study was arranged using a randomized complete block design with four replications. The treatment consisted of six hybrid chili genotypes tested at three test locations, i.e. West Bandung District, Bandung District, and Garut District. The experimental unit was a plot containing 30 plants. Results showed that the combined analysis of variance (ANOVA) showed that the mean square of the genotype was higher than that of genotype x environment interaction, indicating that the genetic effect was more dominant than that of environmental factors. Genotypes tested were highly significant (p &lt; 0.01) indicating difference yield potential among the genotypes tested. There was a significant interaction between the genotype with that of the environment. The stable genotypes determined based on MSTATC analysis obtained two stable genotypes, i.e. H-1 and Cosmos. Genotypes Batalion and Merona, on the other hand were not stable because the T value counted was greater than that of T table. The genotypes H-2 and Hot Beauty were also found not stable because of low yield performances. The implication of this research was that the stable hybrid chili genotypes obtained from this study can be recommended to be registered as candidates as chili paper new varieties.</p>

The availability of qualified and sustainable seeds is one of the determinants of the success of shallot farming. One of the constraints factor in the supply of shallot seeds is the short storage period that is about 2-3 months. This study aims to determine the effect of varieties and seed storage period on growth and yield shallots. This research was conducted at Indonesian Vegetables Research Institute, Lembang, West Java, Indonesia. The study was designed using split plot design with four replications. The main plot was seed storage period for four months, five months and six months after harvest and the subplot was varieties, consisting of seven varieties that have been released, namely Bima Brebes, Katumi, Kuning, Pikatan, Trisula, Pancasona and Mentes. The results showed that the yield of wet bulbs per hectare of five-months-storage period bulb seeds was significantly higher than six months storage period for the varieties of Bima Brebes, Katumi, Kuning, Pikatan, Pancasona and Mentes. Five-months-storage period of shallot bulb seeds can still be used as a source of seeds for the varieties of Bima Brebes, Katumi, Kuning, Pikatan, Pancasona and Mentes.

Cucumber is an annual plant whose life is creeping or climbing on twisted or spiral handles with a fairly Information regarding the quality of shallot bulbs is still limited. Therefore, an experiment was conducted to determine the quality of shallot bulbs from the results of the shallot dormancy breaking treatments. The research was conducted at the Indonesian Vegetable Research Institute from February to April 2018. The tubers of ten breaking dormancy treatments of four shallot varieties were tested for quality including water content, vitamin C, texture and sulfite content and total soluble solid (TSS) with two replication. The results showed that the variety had an effect on the total soluble solid (TSS), sulfite content, texture and vitamin C content. The treatment of dormancy breaking had an effect on the content of soluble solids (TSS), texture and vitamin C. The water content was not affected by the variety and the treatment of dormancy breaking of the shallot bulbs.

Benih biji bawang merah (TSS) disimpan sebelum dilakukan penanaman/distribusi oleh produsen benih. Kondisi simpan dan waktu penyimpanan sangat mempengaruhi mutu benih setelahnya. Infomasi terkait itu masih terbatas. Oleh karena itu dilakukan percobaan terkait penyimpanan benih TSS. Percobaan dilakukan dengan menggunakan Rancangan Acak Lengkap dua faktor. Faktor pertama ruang simpan (refrigerator, suhu ruang, dan gudang benih generatif) dan lama simpan (0, 6, 12, 18, 24 bulan) diulang empat kali. Parameter yang diamati antara lain panjang hipokotil, daya berkecambah, jumlah benih mati, kecepatan tumbuh dan laju pertumbuhan. Data yang diperoleh menunjukkan bahwa refrigerator dan gudang benih generatif dapat mempertahankan kualitas hingga 24 bulan, sedangkan suhu ruang dapat menurunkan daya berkecambah dan kecepatan tumbuh benih TSS setelah disimpan 6 bulan.