Abstract. Purba JH, Wahyuni PS, Zulkarnaen, Sasmita N, Yuniti IGD, Pandawani NP. 2020. Growth and yield response of shallot (Allium ascalonicum L. var. Tuktuk) from different source materials applied with liquid biofertilizers. Biodiversitas 21: 127-133. This research was to examine growth and yield of shallots using different sources of propagation material, namely true shallot seed (TSS) and bulbs. Soil biological fertility, which was generally low, was improved by the addition of liquid organic fertilizer. The purpose of this study a) to determine the differences in the propagation of plants from seeds and bulbs of shallot Tuktuk varieties, and b) to determine the effect of liquid biofertilizer maxigrow and rhizobacteria. The study used a one-factor randomized design. The results showed that the growth and yield of shallots propagated with bulbs were better than the origin of the seeds. The treatment of the two types of liquid biofertilizer produces tangible growth and yield, but there was no significant difference between the two kinds of liquid organic fertilizer.
Abstract. Purba JH, Sasmita N, Komara LL, Nesimnasi N. 2019. Comparison of seed dormancy breaking of Eusideroxylon zwageri from Bali and Kalimantan soaked with sodium nitrophenolate growth regulator. Nusantara Bioscience 11: 146-152. Eusideroxylon zwageri is a very strong and durable wood, which can be used as building materials. This wood plant needs 6-12 months to germinate, but it can be shorted with special treatment (e.g. cracking). Therefore, it is important to conduct research to stimulate E. zwageri seed germination using sodium nitrophenolate growth regulator. The purpose of this study was to analyze the comparison of the fastest time to breaking E. zwageri seed dormancy from the Bali and Kalimantan island. The research method was factorial randomized block design, using the X factor (soaking time) and Y factor (sodium nitrophenolate growth regulator). There were four soaking time treatment, i.e., immersed (soaked in a really short time), 12 and 24 hours soaking time. While the Y factor was the concentration of sodium nitrophenolate with 4 treatments: without sodium nitrophenolate solution or 0 mL (control), soaked in a 1 mL/L of water, 2 mL/L of water and 3 mL/L of water solution. The study results showed the best treatment of E. zwageri seeds germination speed was soaked for 24 hours, and by giving 0,3% sodium nitrophenolate concentration, while the interactions of both showed no significant effect. The soaked time treatment, sodium nitrophenolate concentration, and the interaction of both show no significant effect on germination percentage. The breaking of E. zwageri seed dormancy from Kalimantan has a shorter time to germinate than E. zwageri seeds from Bali.
Abstract. Sasmita N, Purba JH, Yuniti IGAD. 2019. Adaptation of Morus alba and Morus cathayana plants in a different climate and environment conditions in Indonesia. Biodiversitas 20: 544-554. Mulberry (Morus alba L. and Morus cathayana Hemsl.) cultivation business as silkworm feed in Indonesia is increasing, considering the benefits of mulberry economically, ecologically and pharmaceutically. This study aimed to determine the mulberry plants adaptation to the ability of life and growth of mulberry cuttings. The research was conducted at three different places i.e. BPTH Bali, Cianjur Alam Sutra Nursery (West Java) and East Kutai Farming Farm, using Randomized Block Design consisted of mulberry treatments (M. alba and M. cathayana) and three treatments i.e. using Rootone F, Using Organic solution and Control (no added. The results show different growth rates from various regions in Indonesia. Mulberry growth in West Java was the best compared to mulberry which growth in Bali and Kalimantan. The highest live percentage was observed in West Java for M. alba (95%) and M. cathayana (90%), followed by Bali M. alba (85%) and M. cathayana (80%), Kalimantan M. alba (80%) and M. cathayana (75%). The best high parameter of mulberry plant in West Java for M. alba (80cm) and M. cathayana (76 cm), in Bali for M. alba (67 cm) and M. cathayana (76cm), in Kalimantan for M. alba (58 cm) and M. cathayana (50cm). The best mulberry species based on the whole parameter is M. alba in West Java. This means that West Java climate and environmental conditions are good for mulberry cultivation.
Telajakan and mixed gardens are land management systems in Bali. The existing plants are a combination of tree plants, shrubs, palms, bamboo and others by combining agricultural crops and or livestock. This practice is found in one land management unit to the landscape of rural agroecosystems. In the agroforestry system, this system is more of a family-based activity (household-based agroforestry). This study discusses and examines the value of plant species, as well as the benefits for the household level in Tabanan Bali. The study was conducted from January to June 2019 in Pinge Village, Tabanan Regency, Bali, which is a village that provides green space and the beauty of environmental aesthetics. Observation of various species of plants was carried out using Quick Biodiversity Survey (QBS) method, the complementary of the Rapid Agro Biodiversity Appraisal (RABA) method. The observations were carried out on 40 plots representing agroforestry land-use systems. The results showed that the biodiversity and species richness level belonged to the medium category. There are 55 plant species from a combination of agricultural and forest plants. The vegetation structure of Telajakan and mixed gardens guarantees a natural regeneration process. Telajakan and mixed gardens cause the development of commercial species with high economic value and fast-growing species. The plants used by the community for aesthetics, religious ceremonies, food, medicines, building materials, and household utensils. Most of the purposes of use are for green open spaces and environmental aesthetics, subsistence consumption. The results of other plants that are useful for commercial purposes are special crops that are cultivated intensively. The community believes that by observing the environment and the aesthetics of nature is the realization of worship in the relationship between humans, nature and God (Tri Hita Karana).
Environment quality decrease is one of the impact of coal mining activities in East Kalimantan. The land becomes barren and critical, making it difficult for plants to grow and adapt, therefore post-mining area needs to be rehabilitated to restore the soil of the land as an important factor in crop cultivation. Before being planted with local trees, the environmental conditions must be suitable for seedlings to be planted. One of the pioneer plants functions is to stabilize the post-mining environmental conditions. The objective of this study was to determine a pioneer species that have a well adapt to the post-coal mining environment in East Kalimantan. This study using completely randomized block design. The plot used a rectangular 30×25 meter plot of 15 plots for five pioneer tree species. Data collected were the plant life percentage, plant height, stem diameter and crown diameter. The study result showed that from the five species of pioneer plants there were three species has an optimal growth they are Alstonia scholaris, Homalanthus populneus and Croton argyratus. Based on the List Significance Difference test 5% level results shows the Alstonia scholaris and Croton argyratus life percentage is not significantly different with Homalanthus populneus, but it is very different from Macaranga gigantea and Trema tomentosa. Homalanthus populneus is the most adaptable pioneer species in the open area, its growing in the open post-mining area and from the forest with has intact condition. The genetic factors really affect the adaptation and growth of pioneer plants in post-mining areas.
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