Pengaruh lengas tanah terhadap aktivitas nitrat reduktase dan glutamin sintetase beberapa varietas kacang tanah=The influence of soil moisture on nitrate reductase and glutamine synthetase activity in several varietas...

The experiment of the effects of soil moisture on nitrate reductase activity(NRA) and glutamine synthetase(GSA) in several varieties of peanut was conducted in the green house and in the Molecular laboratory_Jember University. The treatments were the combination factors of soil moisture level and peanut variety. The first factor was watering interval to the field capacity (FC), consisted 2 days interval (L1), 4 days interval(L2), 6 days interval(L3), 8 days interval(L4). The second factors was peanut variety consisted of Gajah(V1), Anoa(V2), Macan(V3), and Kelinci variety (V4). The results shown that 1) NRA was influenced more by soil humidity than GSA, 2) GSA had positive corelation with NRA (r=0,667*) at 24 days afterplanting but no correlation had been found from both of them at 47 days after planting, 3) NRA could could be used as selection marker of drought resistance varieties.NRA of Kelinci variety was high at low soil humidity, and implied that Kelinci variety was more resistant to drought. Keywords: soil humidity-NR activity-GS activity-peanut variet

The Role of Mycorrhizae on Seedlings and Early Growth of Sugarcane

The role of mycorrhizae in plant growth is well known, such as the ability to increase nutrient uptake, especially phosphate (P), drought tolerance, and resistance to pathogens. It is necessary to understand the application of arbuscular mycorrhizal technology in industrial plant production systems and their impact on agriculture systems. Large-scale nurseries of plantations require proper mycorrhizal application techniques. The relationship of mycorrhizal infection with plant yield (biomass) is known and in the next step, appropriate application time is needed to increase the effectiveness of mycorrhizae in plant growth and yield. Application of mycorrhizal inoculum was more effective in increasing the biomass of sugarcane stem weight to reach 61% with an increase in infection of 41.3%. In addition, the mycorrhizal application increases the root growth of sugarcane seedlings. The root growth promoting ability is important to increase the initial growth of plants after transplanting in dry land under the influence of drought stress, limited nutrients. The application of this technology is expected to increase plant growth, facilitate the maintenance and efficiency of cultivation on an industrial scale

Kajian benzyl amino purine dan jenis pupuk organik terhadap pertumbuhan, hasil, dan kandungan vitamin c pada kubis putih (brassica oleraceae l)

Wawan Riyanto Sulistiono, S.610906015. The Study of Benzyl Amino Purine and Organic Manure Type to Growth, Result, and Content of C Vitamin at White Cabbage (Brassica Oleraceae L). This research aim to study Benzy Amino Purine and organic manure type to growth and result of white cabbage and also content of C vitamin at white cabbage. The experiment was conducted at horticultural seed Garden, Bandungan with andosol soil type, 840 m above sea level from August 2007 to January 2008. Experimental design used was Randomized Complete Block Design (RCDB) based on factor and 3 replications. First factor consist of concentration of Benzyl Amino Purine : 0 ppm; 25 ppm; 75 ppm. Second factor is organic manure type : without manure; cow manure; chicken manure; goat manure. The data from the observation was analysed by anova with the significantly 5% and 1% if there was significantly difference among the treatment, is was continued analysed by Duncan Multiple Range Test (DMRT) on 5% and 1%. The result of the result showed that Benzyl Amino Purine concentration 75 ppm can yield cabbage weight (2,058 kg) and yield C vitamin 39,257 mg, organic manure type of chicken influence growth and resut of cabbage crop, chicken manure yield cabbage weight 2,279 kg. Fertilization with cow manure can yield highest C vitamin 37,870 mg

PENGAWASAN KEAMANAN DAN MUTU PANGAN SEGAR ASAL TUMBUHAN (PSAT) DI PEREDARAN DI PROVINSI JAWA TENGAH

The research objective is to determine the implementation of the safety and quality inspection of post market Plant Origin Fresh Food(POFF) in Central Java Province and to formulate alternative strategies that can be carried out in inspecting the safety of post market POFFfor consumer protection in the future. The research was carried out from April to September 2020 at the Food Security Board of Central Java Province. The data collected are primary and secondary data. The analysis method used are qualitative descriptive analysis and SWOT analysis. The results showed that the safety and quality inspection of post market POFF was carried out through periodic and special inspecting. The test results showed that the content of biological, chemical and other contaminants on the sample of post market POFF was below the maximum residue/contamination limit. Alternative strategies that can be carried out in inspecting the safety of post market POFF are: (1) carrying out a comprehensive risk analysis; (2) providing education and training for inpectors; (3) adding laboratory testing infrastructure to expand the scope of accredited testing; (4) increasing online socialization and education for consumers; and (5) increasing the inspection of POFF that is circulated online. Keywords: Food Inspection, Postmarket, POFF, SWOT, Central Jav

Pengaruh Aplikasi Mikoriza Arbuskular dan Media Tanam Terhadap Pertumbuhan Kelapa Bido di Kebun Rehabilitasi

The North Maluku region is famous for its agricultural sector, sub-sector of coconut plantations. However, there are various problems that become challenges in efforts to increase coconut production in North Maluku. The purpose of the study was to obtain information on morphological characteristics and growth related to the dose of arbuscular mycorrhizal fungi and the composition of the growing media. The research was conducted at the North Maluku Plantation (BPTP) from August 2019 to February 2020. The study used a factorial of 2 factors, namely the dose of JMA and the composition of the growing media. The first factor is the dose of JMA which consists of 3 levels of M1 (2g); M2 (4g); and M3 (6g). The second factor is a combination of 3 levels of planting media; manure (PK): sawdust (SG): sand (Ps). Data were analyzed using variance (analysis of variance). The results showed that the combination of treatment with a dose of JMA and a certain planting media could stimulate the growth of plant height, stem circumference, number of variables, and the highest crown length at the age of 6 bst.Keywords: bido coconut, arbuscular mycorrhizal fungi, growing media, morphological and growth characteristic

Effect of arbuscular mycorrhizal fungi on early growth, root colonization, and chlorophyll content of North Maluku nutmeg cultivars

This study aimed to investigate the agronomic traits of nutmeg transplanting by arbuscular mycorrhizal fungi (AMF) inoculation. The low-fertility soil of Sofifi North Maluku was subjected to a slow early growth stage of nutmeg cultivars. A completely randomized design was used in the experiment. The first factor was three different AMF doses: 0, 4, and 8 g seedlings−1. The second factor consisted of three cultivars: “Ternate 1,” “Tobelo 1,” and “Makian.” Root colonization and agronomic traits were measured 28 weeks after inoculation and transplantation. Results showed that AMF inoculation increased the AM colonization by 2.5–39.0%, significantly increased the leaf area (LA) (p < 0.01) in all cultivars, and interacted with cultivars to increase chlorophyll a (Chl a) (p < 0.05), chlorophyll b (Chl b) (p < 0.01), and total Chl (p < 0.01). Cultivars “Makian” showed the highest Chl (188.4%) at 8 g seedling−1 doses of AMF that were significantly (p < 0.01) different from the cultivar “Tobelo 1” at the same dose. The largest mycorrhizal response was found in the cultivar “Ternate 1” (biomass increase of 30–37.0%). The cultivar “Ternate 1” produced the largest LA (36.7–106.9%) and shoot dry weight (27.8–45.8%) that were significantly (p < 0.01) different from the other cultivars. The percentage of AM colonization was strongly determined (R 2 = 0.88) by Chl a, Chl b, and K content in leaves. This technology is a breakthrough to increase LA and plant biomass in the early growth stage of nutmeg cultivation