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Pengaruh Dosis Rhizobium Serta Macam Pupuk NPK Terhadap Pertumbuhan Tanaman Kedelai (Glycine max) Varietas Anjasmoro Manasikana, Arina; kuswanto, Lianah; Kusrinah, Kusrinah
Al-Hayat: Journal of Biology and Applied Biology Vol 2, No 1 (2019)
Publisher : Fakultas Sains dan Teknologi, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/ah.v2i1.4647

Abstract

Efforts to increase the growth and yield of soybean plants can be done through the use of cultivation technology,  namely  by  providing  biological  fertilizer  treatments  such   as  N-fixing  bacteria,  namely Rhizobium. The study aims to determine the effect of the right Rhizobium dose and type of NPK fertilizer on the growth of the Anjasmoro variety of soybean (Glycine max). This research uses a factorial randomized block design with two factors and three repetitions. The first factor is Rhizobium inoculation consisting of I0: No inoculum, I1: Rhizobium inoculum (5 g / kg seed), I2: Rhizobium inoculum (7 g / kg seed), I3: Rhizobium inoculum (9 g / kg seed). The second factor is the type of NPK fertilizer, namely P0: No fertilizer, P1: solid NPK fertilizer (0.8 g / plant), P2: liquid NPK fertilizer. The results showed that the dose of Rhizobium that could affect soybean growth was a dose of 9 grams/kg of seed that significantly affect ed the number of leaves and leaf color but did not significantly affect plant height, number of branches, number of root nodules and root nodules weight. NPK fertilizer that can affect soybean growth is liquid NPK fertilizer, and only has a significant effect on leaf color. The interaction of Rhizobium inoculation treatment and NPK fertilizer types significantly affected most parameters but did not significantly affect the number of branches and weight of root nodules.
Metabolic Profiling of Three Species of Amorphophallus (Araceae) Santosa, Edi; Fatah, Muhammad; Kuswanto, Lianah; Krisantini, Krisantini
Journal of Tropical Crop Science Vol. 9 No. 02 (2022): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.9.02.105-113

Abstract

A study was conducted to determine the metabolic contents of corms of three species of Amorphophallus, A. muelleri, A. paeoniifolius, and A. variabilis using gas chromatography mass spectrometry (GCMS) with water as polar solvent. The corms were collected from plants cultivated at the Leuwikopo Experimental Station, IPB University, Darmaga, Bogor, Indonesia. Metabolic profiling conducted at the Jakarta Regional Health Laboratory, Indonesian Ministry of Health, demonstrated that the three species of Amorphophallus vary in metabolic content, specifically for 12 compounds belonging to antioxidants, vitamins, saturated fatty acids, polyunsaturated fatty acids, phytosterol, alcohol, aldehyde, and alkane. Our study had shown that metabolic profiling is a potentially useful method of differentiating or determining species markers that in turn could be efficient way for genetic conservation and development of future food source.