Abstract. Palupi T, Pangaribuan F, Hearnes, Riyanto F, Wasian, Zulfita D. 2020. Morphological and agronomical characters of four black rice varieties from West Kalimantan, Indonesia. Biodiversitas 21: 1065-1073. The black rice paddy is a variety of rice known to have anthocyanin content which is beneficial to human health. Yet, the black rice paddy is relatively rare to find as not all rice-growing areas develop and plant black rice. West Kalimantan has several potential black rice varieties which are potentials as genetic resources to create a new black rice variety in plant breeding programs. This research was aimed to describe the morphological and agronomical characteristics of four black rice varieties from West Kalimantan, namely Nanga Taman, Mukok, Senakin, and Ensalang. The study was conducted at the experimental garden of Agriculture Faculty, University of Tanjungpura, Pontianak using Completely Randomized Design. Each variety consisted of six replications, and each replication consisted of 3 samples. We observed 12 characters of the vegetative phase and 21 characters of the generative period. The four varieties had similarities in 13 characters and differences in 20 characters. The results showed that the four black rice had superior properties such as the stem angle and the angle of the leaves is upright so that it reduces interference from bird pests. Among them, the Senakin variety had an advantage over the three other varieties in terms of plant height, age, the number of productive tillers, and weight of grains.

Spinach required relatively high Nitrogen to grow it in less fertile fields. The use of free living N-fixing bacteria were expected to facilitate N supply to the crop. The research aims was to characterized of N-fixing bacterial isolates and its role to spinach germination. The exploration of bacterial isolates, were collected from wild spinach roots using LG and Ashby media. Bacterial isolates which were obtained, then being characterized based on its ability to dissolve P and produced indole compounds in Picovskaya and TSB media respectively, enriched with tryptophan. Superior isolates were used in the spinach germination test. Germination test using the UDK method in merang paper. The variables measured in this study were normal seedling, seedling vigor, root length, and height of normal seedling. The isolation results obtained 16 isolates that can fix N, 3 isolates (12BH3, 13BH4 and 1BH4) were higher in dissolving P and capable to produce indole compounds. Isolates 12BH3, 13BH3 and commercial isolates were used in the germination test. Test result showed that the bacteria can increase the N fixation, and high normal seedling sprouts.

Jackfruit Artocarpus heterophyllus Lamk.is the fruit of that already long been known, but not much research about jackfruit. The West Kalimantan is a province rich in germplasm good plant forests, plantations and agricultural crops. Methode study aims to review determine genetic diversity with morphological characters and to review determine similarity value between accessions of distance diversity of jackfruit in West Kalimantan. The method used is a method of sampling observations using purposive sampling. Morphological identification using quantitative data and qualitative data.with IPGRI altered data passports being numerical data. The identification results of morphological diversity jackfruit on lead group three big hearts of your scale 20 Cluster analysis using SPSS software version 22. Results First grouping Kubu Raya02 and Pontianak01; The second group Sambas01, Singkawang02, Sambas02, Raya05 Kubu, Kubu Raya01 And Singkawang01; The third group consists Pontianak02, Kubu Kubu raya04 and Raya03. The results of the similarity analysis showed that having the highest similarity coefficient value pair Kubu Raya02 with Kubu Raya02 and the lowest coefficient values on pair Pontianak02 with Kubu Raya04. With the identification of the group can design and plan breeding with conventional crossbreeding methods or using genetic engineering. Mapping using cluster analysis gives an important role to improve the properties of the desired plant.

Black rice (Oriza sativa.L) is one of the local varieties that has a high anthocyanin content within the pericarp layer of the seed, which contains nutritions that are important to health. Local black rice seed frequently  empty with grain, caused by ineffective manure, especially potassium and phosphate. Utilization of rainfed areas for black rice cultivation can be done with balanced fertilization. This study aims to determine the effect of phosphate and potassium fertilization on the growth and production of black rice grain in rainfed areas. The study used a Completely Randomized Design (CRD) model with two factors, i.e KCl fertilizer factor consisting of four levels namely k0 without treatment, k1 = 20 g / plot, k2 = 40 g / plot, k3 = 60g / plot and the second factor was phosphate consisting of the four levels, i.e p0 without treatment, p1 = 20 g / plot, p2 = 40 g / plot, p3 = 60g / plot. Each treatment was repeated three times so that there were 48 experimental plot units. The results showed that there was an interaction between the treatments on the weight of 1000 grains while the application of potassium fertilizer significantly affected the number of productive tillers, harvested unhusked rice, milled unhusked rice and the weight of 1000 grains. The application of phosphate fertilizer only significantly affected the number of productive tillers with recommended doses 40g / plot because it gives a higher yield compared to the others in the number of 17.95 productive tillers Keywords: Black Rice, Potassium, Phosphate.