<p>Garlic has a high price in the market, however, production of garlic has its limitations. The use of chemical fertilizers has shortcomings in terms of environmental sustainability, so need for organic fertilizer which serves to reduce the negative impact. The study aims to determine interactive between kinds of mycorrhizal and organic fertilizer to garlic, get the appropriate mycorrhizal and to get the Suistainablekind of fertilizer to increase of the garlic yield. The experiment was conducted from January 2013 to August 2013. Research using CRD (completely randomized design) with 2 factors of organic fertilizer (chicken manure, cow manure, goat manure, manure and vermicompost compost) and mycorrhizal types (Gigaspora margarita, Acaulospora sp, Glomus etunicatum). The results showed mycorrhizal mycorrhizal types Gigaspora margarita is suitable and capable of enhancing the growth of garlic, application of organic fertilizers used have not been able to increase the growth and yield of garlic. Applications of various types of mycorrhiza and organic fertilizers have not been able to increase the growth of garlic.</p>

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Abstract:Rice is the source of important food in the world. The demand of rice tends to increase every year, thus research to increase genetic variation of rice by gamma irradiation has been conducted. This research aimed to study the influence of gamma irradiation doses on the vegetative growth, yield and quality. The randomized completely block design was used with two factors -gamma irradiation doses and varieties. Two rice varieties were Ciherang and Cempo Ireng, while doses of gamma irradiation consisted of six levels: 0, 100, 200, 300, 400 and 500 Gy. The results indicated that the treatment of 200 Gy gamma irradiation to Ciherang could improve the number of grains/panicle, protein content, degraded plant height and amylose contents. Gamma irradiation to Cempo Ireng at dose of 200 Gy could improve the number of grains/panicle, 1,000 grain weight, while it decreased days to 50% heading and plant harvest age.

<p>The research was conducted from May to November 2011 at Central Java (Karanganyar District) and East Java (ngawi district) dry land. The research was used Randomized Complete Block Design (RCBD) and with two treatments, were: sweet sorghum varieties (Numbu dan Kawali) and the kind of manure (chicken, goat, cow, kascing and without manure). The data was analyzed with randomize analisys and Duncan test. The research showed that (a) Numbu and Kawali varieties were gave same respons to growth and yield component variables, so the both varieties can be planting at Central Java (Karanganyar District) and East Java (Ngawi District) dry land; (b) Chicken manure gave the best effect to sweet sorghum growth and yield compared with control, cow, goat, and kascing manure, consist of: plant height, leaf number, root length, root volume, 1000 seed weight, stem diameter, biomass fresh weight, and biomass dry weight, juice content, and sugar content.</p>

Abstract. Hartati S, Samanhudi, Manurung IR, Cahyono O. 2021. Morphological characteristics of Phaius spp. orchids from Indonesia. Biodiversitas 22: 1991-1995. Orchid is one of the ornamental plants with great economic value in various communities. Characterization and grouping of several orchid species can be used in breeding efforts to obtain hybrid with the desired traits. This study is aimed to characterize the morphological appearance of Phaius orchids and to cluster the species based on their similarity in morphological characteristics. Five species of Phaius (P. tankervilleae, P. indigoferus, P. montanus, P. amboinensis, and P. callosus) of the collection of the Bogor Botanical Garden were observed based on 30 morphological characters including the characters of stems, pseudobulbs, leaves and flowers. The data obtained were converted into binary data and computed using the Numerical Taxonomy and Multivariate Analysis System (NTSYS) Spc 2.02 program to produce dendrogram. The results show that based on the morphological characterization of the five species of Phaius spp., they have similarities from 63% to 80%. Among the five Phaius species, P. amboinensis, P. tankervilleae, and P. montanus had 80% similarity and can be used as parents for crossing.

Soybean is the basic material for any kind of industry, such as tofu and tempeh industries. Soybean cultivation will be better if use a sustainable agricultural system, such as using organic fertilizers. This research purpose was to find out the effect of organic fertilizer on the growth and yield of local soybean. The research used a complete randomized design with one factor which was a variety of organic fertilizers with 6 treatments. Various fertilizers used in this research consist of inorganic fertilizer, liquid organic, compost, cow manure, rabbit urine, chicken manure, and goat manure. Each test unit consists of 4 pots (plants) and each was repeated 4 times. The results showed that the provision of compost and goat manure increased the growth of local soybean plants, include plant height and the number of leaves at 42 DAP and leaf area at 28 DAP. The application of various organic fertilizers (liquid fertilizer, compost, cow manure, goat manure, and rabbit urine) is unable to increase the yield and yield components of local soybeans.

A System of Rice Intensification (SRI) create optimal conditions with transplanting widely spaced young single seedlings, organic fertilizer amendment, and water management. In Indonesia the water for irrigating rice is limited, especially in the dry season. An Intermittent irrigation method of rice cultivation aims to reduce water requirements. In Indonesia local rice varieties have the potential to produce high-yielding rice with the intermittent irrigation method to meet food needs. The study aims to determine the suitability of SRI and conventional irrigation techniques on local rice varieties. The research conducted the field experimental with 4 x 2 factorial design, arranged in a Randomized Completely Block Design with three replications. The first factor was rice varieties, which consisted of 4 varieties, i.e., Rojolele, Cianjur, Mentikwangi and Ciherang. The second factor was the method of irrigation consisting of two kinds, i.e., intermittent irrigation and continuous flooding. Analysis of variance and Duncan's Multiple Range Test at α=5% was used. The results showed that rice variety and irrigation were significantly interacts to the secondary macronutrient absorption and root development. Rojolele with SRI irrigation has higher secondary macronutrient absorption than the Cianjur and Mentikwangi. Calcium nutrient absorption of Rojolele and Ciherang with SRI irrigation was higher than other varieties, whereas Magnesium nutrient absorption of Rojolele with SRI irrigation was higher than Ciherang, Cianjur, and Mentikwangi. Rojolele with SRI irrigation had higher Sulfur nutrient absorption than Cianjur and Mentikwangi. In Rojolele and Ciherang, intermittent irrigation SRI produced longer roots at harvest and more wide root surface area than conventional irrigation, but on Mentikwangi, conventional irrigation produced longer roots and more wide root surface area than intermittent SRI irrigation. The chlorophyll b content of the Cianjur and Mentikwangi were greater than Rojolele. The yield of Cianjur was higher than Ciherang's variety.

<p><em>Kaempferia rotunda </em>that long ago been used to treat gastrointestinal disorders and also treat cancer, has<em> </em>promising opportunities to cultivate. There are several obstacles in cultivation today. Plant propagation by <em>in</em> <em>vitro </em>can be one solution.<em> </em>Basic media and plant growth promoting substance usage is an important factor which<em> </em>has to be concerned. Research aiming to produce high quality seed and in large numbers. Research has been carried out in Tissue Culture Laboratory, Agriculture Faculty, Sebelas Maret University, Surakarta, during July 2014 to August 2015. This research was used MS (Murashige and Skoog) media with combination treatment of each IBA and BAP concentration of 0, 1, 2, 3, and 4 ppm. The number of shoots that appear on the explant is the main observation variables. The results showed IBA and BAP are likely to affect the appearance of buds as much as 2 pieces in each explant at 0 ppm IBA treatment.</p>