Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
ISSN : 20852916     EISSN : 23373652
urnal Agronomi Indonesia, sebelumnya bernama Buletin Agronomi, terbit sejak 1962, diterbitkan oleh Departemen Agronomi dan Hortikultura Fakultas Pertanian, Institut Pertanian Bogor dan Perhimpunan Agronomi Indonesia (PERAGI). Jurnal Agronomi Indonesia merupakan media untuk publikasi tulisan asli yang berkaitan dengan budidaya tanaman secara luas, dalam Bahasa Indonesia maupun Bahasa Inggris. Naskah dapat berupa: hasil-hasil penelitian mutakhir (paling lama 5 tahun yang lalu), ulasan (review)singkat, analisis kebijakan atau catatan penelitian (research note) singkat mengenai teknik percobaan, alat, pengamatan, hasil awal percobaan (preliminary result).
Articles 6 Documents
Search results for , issue " Vol 31, No 1 (2003): Buletin Agronomi" : 6 Documents clear
Penggunaan Media Alternatif pada Kultur In Vitro Jahe (Zingiber officinale Rosc.) Varietas Gajah Sutarto, Ismiyati; Supriatna, Nana; Yuliasti, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The problem faced in cultivation of ginger is the availability of uniform plant propagation materials.  Ginger is propagated through underground rhizomes. Growth of the  rhizome is not uniform, since the shoots do not sprout at the same time. Most of the rhizomes were attacked by several diseases such as bacterial wilt, soft rot, and nematodes. Propagation of plant material through in-vitro culture is also an obstacle since the price of pure agar and chemicals is very expensive. Therefore, production of cheap, uniform and disease-free plant materials with rapid multiplication rate is necessary for the successful ginger cultivation. The use of alternative media on in-vitro culture of ginger (Zingiber officinale Rosc.) cv. Gajah was conducted in order to substitute cheaper alternative media for in-vitro culture of ginger. An experiment using two basic composition of media (MS and liquid fertilizer) and three different types of agar (seaweed, Swallow and Oxoid agar) was done at the Tissue Culture Laboratory of Center for Research and Development of Isotope and Radiation Technology, Jakarta. The result showed that the highest shoot height, number of shoot and leaf was obtained from medium composition of sea weed and MS. Whilst the medium of Oxoid agar and MS produced the longest and the highest number of root. The cheapest medium was found from seaweed and liquid fertilizer composition, whereas the most expensive medium was from Oxoid agar and MS composition. Seaweed and Swallow agar in MS media showed similar growth performance as well as Oxoid agar in development of ginger plantlets.    Key words : Media, In-Vitro, Ginger
Nitrogen Transfer of Two Cultivar Faba Bean (Vicia faba L.) to Oat (Avena sativa L.) Purnamawati, H.; Schmidtke, K.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

Nitrogen fixed by the legume could be used by other plants, such as through rhizodeposition and direct transfer between roots.  The possibility of N transfer in intercropping legum-cereal have long been observed, especially legum with short and dense root.  This experiment had been carried out to determine whether there was N transfer from faba bean (Vicia faba L.) growing in association with oat (Avena sativa L.) and whether there was difference between two cultivars of faba bean in the amount of N transfer.  Methods used were complete-mixed-root (CMR) between faba bean and oat, and mixed half the root of faba bean with oat (SR).  As a tracer isotope 15N was used in form of K15NO3.  The experiment was carried out from May 2000 through January 2001 in Institute of Agronomy and Plant Breeding, University of Goettingen Germany.  The data of CMR method had great variance.  Using SR method a positive value of 15N enrichment was found in oat indicated that transfer N from faba bean cv. Minica and Scirocco occurred.  There was no difference found in the amount of N transferred between the two tested cultivars.   Key words: N transfer, 15N, Faba bean, Oat
Respon Tanaman Kacang-Kacangan yang Bersifat Determinate dan Indeterminate pada Berbagai Kondisi Ketersediaan Air Thomas, ,; Robertson, M. J.; Fukai, S.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

Growth and yield of soybean and blackgram, having determinate and indeterminate in flowering respectively, were compared under three water regimes.  Under well-watered conditions, blackgram continuously produces flowers where under rainfed + irrigation and rainfed condition, two periods of flowering can be distinguished.  While only one period of flowering was observed in soybean. The second flush of flowering of blackgram in rainfed and rainfed + irrigation areas occurred during high rain fall.  Partial irrigation as much as 80 mm toward the end of pod filling in soybean did not give benefit to soybean, but irrigation stimulate flowering in blackgram and increase yield up to 25%.  Thus indeterminate behavior might give higher yield under rainfed condition due to its flexibility of flowering.   Key words: Determinate, Indeterminate, Flowering, Water stress
Pemanfaatan Pupuk Majemuk sebagai Sumber Hara Budidaya Tomat secara Hidroponik Kusumawardhani, Amalia; Widodo, Winarso Drajad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The objective of this research was to know the effect of compound fertilizer as nutrient source for hydroponics tomatoes. This experiment was conducted from Mei to September 2002, at Cikabayan Experiment Station of The Faculty of Agriculture, Bogor Agriculture Institut (IPB). The compound fertilizers used were Grow More, Gandapan, Hyponex, and Joro AB mix as control. Experimental design used was Randomized Block Design with three replications. The results of this experiment indicated that Joro and Gandapan have the greatest effect for vegetatif phase. There was no significant difference between control (Joro) and the treatments (Grow More, Gandapan, and Hyponex) in number of flower, fruit set, fruit weight, and bad fruit weight, fruit quality, percent total solid. This indicated that the fertilizers could be used as nutrient source for tomato cultured in hydroponics.  Key words : Hydroponic, Multi fertilizer, Vegetatif, Generative phase.
SCAR (Sequence Characterized Amplified Region) Analysis for Blast Resistant Evaluation on 12 Genotypes of Rice Sobir, ,; Andrianyta, Harmi; Amir, Mukelar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

Resistance evaluation to blast disease (Pyricularia grisea) on 12 paddy genotypes was carried out in the green house by using spray inoculated method with race 033 and 041 of P. grisea , and SCAR (Sequence Characterized Amplified Region) marker by using Pib primer pairs. The results revealed that among 12 paddy genotypes were classified into six resistance groups. The first group comprised two genotypes (Jatiluhur and Asahan) having three resistance genes. The second group comprised two genotypes (Oryza malampuzhaensis and O. punctata) having two resistance genes against race 033 and 041. The third group had one resistance gene against race 033, comprised one genotype (Way Rarem). The fourth group comprised one genotype (Danau Tempe) having two resistance genes against 041 race and Pib. The fifth group comprised three genotypes (Kalimutu, Maninjau and Laut Tawar) having two resistance genes against race 033 and Pib. The sixth group comprised two genotypes (Kencana Bali and Cirata) having no resistance gene to blast race 033 and 041, and Pib.  These results indicated that Pib gene did not confer resistance to race 033 and 041 of Pyricularia grisea.  Resistance to race 033 and 041 might be controlled by different resistant gene.   Key words : SCAR, Blast resistant, Rice
Fluoresen Klorofil Benih: Parameter Baru dalam Penentuan Mutu Benih Suhartanto, Mohamad Rahmad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 1 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

It has been shown that chlorophyll content of seeds was negatively correlated with germinability towards the end of maturation.  Physiological maturity was achieved when the chlorophyll fluorescence reached a minimum.  The presence of chlorophyll in seeds and its relation with the progress of seed maturation has gained renewed interest after the development of Laser Induced Fluorescence (LIF).  This equipment is able to measure and analyze chlorophyll fluorescence in the seed instantaneously and non-destructively.  The use of LIF makes it possible to perform physiological and biochemical assays after chlorophyll fluorescence measurement in the same seeds.  Based on the results from some experiments as well as the literature, the role of chlorophyll in developing seeds is presented.  The overall conclusion is that chlorophyll is required during seed development, but undesirable during maturation.  We hypothesize that the presence of chlorophyll during seed maturation is undesirable since it is associated with lower quality, particularly lower seed longevity.  Chlorophyll may also be a primary source of free radicals.  Seed chlorophyll fluorescence was affected by endogenous abscisic acid, gibberellins and phytochrome. Light, temperature and relative humidity may also influence the chlorophyll fluorescence of seeds.   Key words: Chlorophyl, Fluorescence,  Parameter, Seed testing

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