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Kandungan Beberapa Zat Endogen pada Buah Retensi dan Buah akan Rontok pada Mangga Sakhidin Sakhidin; Bambang S. Purwoko; Sudirman Yahya; R. Poerwanto; Slamet Susanto; A. S. Abidin
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 2 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (45.843 KB) | DOI: 10.24831/jai.v34i2.1287

Abstract

The aim of this research was to study the relationship between fruit drop  and contents of auxin, polyamines, ACC, total sugar, and starch. Cultivars of mango used were Gadung 21 and Lalijiwo.The persisting fruit and abscising fruits were used to quantify auxin, polyamine, ACC, total sugar, and starch.  The content of polyamine and ACC was determined on pericarp, auxin on seed, whereas the content of starch and total sugar was determined on mesocarp. The result of research showed that fruit drop was preceded by low content of auxin that increased the sensitivity of abscission zone to ethylene.  The increased sensitivity of abscission zone to ethylene was supported by low content of polyamine and  high content of ACC. The abscising fruit has high content of starch, but low in  total sugar content.   Key words : Mango, persisting fruit, abscising fruit, auxin, polyamine, ACC, total sugar, starch
Respon Tanaman Pegagan (Centella asiatica L. Urban) Terhadap Pemberian Pupuk Alami di Bawah Naungan Neni Musyarofah; Slamet Susanto; Sandra A. Aziz; Suyanto Kartosoewarno
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 3 (2007): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.636 KB) | DOI: 10.24831/jai.v35i3.1335

Abstract

The objectives of this experiment was to study the growth, yield and qualitative bioactive compounds of Indian pennyworth (Centella asiatica L. Urban) under different shading levels and biofertilizers.  Field experiment was conducted from February until May 2006 at Kuntum Nurseries Bogor.  Split plot design was used in this experiment.  The main plot was shading level: 55, 65 and 75%. The sub plot was biofertilizer types: Fertifort Super, Fertifort Fine and NPK Novelgro fertilizer.  The result of this experiment showed that plants under the 65% shading level significantly showed better growth, biomass weight and qualitative bioactive compounds (tanin, flavonoid, steroid and triterpenoid) than those of 75% shading level.  The 75% shading level was unsuitable because all plants were dead at 10 weeks after fertilizer application; the 55% shading level gave the best growth responses but 55 and 65% shading level gave no significant differences in biomass weight. Biofertilizer gave no significant differences in leaf and stolon numbers, biomass weight and physiological characteristics except NPK content in plant tissue. Significant difference occured only in N plant tissue content because of interaction with shading level. The different effect in qualitative bioactive compound showed that saponin was found in 55% shading level but not in 65% shading level.   Key words:  Shading, biofertilizer, qualitative bioactive compound, Centella asiatica.
Perbanyakan Vegetatif Tanaman Jarak Pagar (Jatropha curcas L.) dengan Stek Batang: Pengaruh Panjang dan Diameter Stek Bambang Budi Santoso; , Hasnam; , Hariyadi; Slamet Susanto; Bambang Sapta Purwoko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 3 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.036 KB) | DOI: 10.24831/jai.v36i3.1385

Abstract

Since physic nut (Jatropha curcas L.) is heterozygous, sexual propagation results in great genotypic and phenotypic variability. Development of efficient techniques for asexual propagation would benefit the nursery industry as this would lead to selection and production of particular clones with desirable characteristics. Therefore, two following studies were conducted from September until December 2007.  The objective was develop a protocol for vegetative propagation of physic nut by stem cutting in different size of cutting. The first experiment was dealt with stem cutting length (20 cm, 25 cm, and 30 cm) at the same size of diameter (2.5-3.0 cm), and the second experiment was dealt with diameter of stem cutting (3 cm, 2.5-2.9 cm, 2.0-2.4 cm, and 1.5-1.9 cm) at the same size of length (30 cm). Each of experiment was designed in Completely Randomized Design with three replications. Each experimental unit consisted of 25 seedlings. The result showed that cutting growth varied depending on length and diameter of stem cutting. However, better seedling growth and better survival of young plant of physic nut can be obtained from stem cutting with 20-30 cm in length and stem cutting with 2.0-2.9 cm in diameter.   Key words: cutting diameter, cutting length, Jatropha, survival, transplanting
Efektivitas Strangulasi terhadap Pembungaan Tanaman Jeruk Pamelo ‘Cikoneng’ (Citrus grandis (L.) Osbeck) pada Tingkat Beban Buah Sebelumnya yang Berbeda Muhammad Thamrin; Slamet Susanto; Edi Santosa
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (48.288 KB) | DOI: 10.24831/jai.v37i1.1393

Abstract

Biannual bearing fruit is a common phenomenon in tropical fruit trees. However, effectiveness of flowering induction on those fruits is still lack of study. The ojective of the research was to study the effectiveness of flowering induction on pummelo of different fruit load on previous year. Field experiment was conducted at farmer's orchad Bantarmara village, Cisarua, Sumedang Region, West Java (300 m above sea level) from August 2007 to April 2008. Experiment was carried out using Completely Randomize Block Design. Experiment was combination of high crop load and less crop load with strangulation position at main stem and primary branches. The results showed that crop load of previous year (higher and less) with strangulation position at primary branches had significant response to the number of  flower clusters, flower buds, bloming flower, fruits formed, and fruit sets as compared to control, when strangulated at primary branches. Nevertheless,  amount of fruit sets, level of greenness leaf and leaf area seened were not determined by fruit load non position of strangulation. This finding implies that fruit load management is an important factor in determining the success of flowering induction using strangulation.   Key words: fruit load, strangulation, pummelo, flowering induction
Pengaruh Pemangkasan Cabang dan Penjarangan Bunga Jantan terhadap Pertumbuhan dan Produksi Gherkin dengan Budidaya Hidroponik Slamet Susanto; Edi Minaji Pribadi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 1 (2004): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.59 KB) | DOI: 10.24831/jai.v32i1.1429

Abstract

The objective of the research was to evaluate the effect of branch pruning and male flower thinning on growth and production of gherkin. The research was conducted in a plastic house at Pasir Sarongge Research Station of IPB, Cipanas, from December 1999 to February 2000. A Complete Random Design with two factors was used in this experiment. The first factor was branch pruning consisted of three intensity levels i.e. without branch pruning (CO), a part of branch pruning (CI), and total branch pruning (C2). The second factor was male flower thinning i.e. without thinning (BO), and with thinning (BI). Each treatment was replicated three times. Gherkin variety used in this experiment was SMR 58. The treatments were applied after el1lerging of male flower at 5 weeks after planting, and then it was replicated in every 3 days. Vegetative growth variables observed were length of stem and number of node per plant, while production components observed were number of female flower, number and weight of total fruit, and number and weight of marketable fruit. There was no interaction between branch pruning and male flower thinning treatments on all vegetative and generative variables. Both treatments did not show significant effect on vegetative growth as shown on stem length and node number. At the end of experiment (82 days after planting) the average of stem length was 230.4 - 247.6 cm and node number was 30.2 - 31.0 per plant. The treatments also did not show significant effect on production variable components, except for marketable fruit weight. Number of female flower was 19.0 - 20.3 per plant, while number of fruit was 15.2 - 16.3 per plant. The marketable fruit weight resulted from the total branch pruning treatment was 94% of the total fruit weight, showed significantly higher than that of the control plant (83%). There was a tendency for male flower thinning treatment to result higher marketable fruit as compared with that of the control ones. Key words.. Gherkin, Branch pruning, Male flower thinning, Hydroponics
Pola Kerontokan Buah Tiga Kultivar Mangga , Sakhidin; Bambang S . Purwoko; Roedhy Poerwanto; Slamet Susanto; Sudirman Yahya; Ahmad S. Abidin
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 2 (2004): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1018.035 KB) | DOI: 10.24831/jai.v32i2.1436

Abstract

Information on the pattern of fruit drop of mango is required to determine the appropriate method and time in reducing fruit drop. By this methodf, fruit retention or number of harvested fruit of mango can be increased.The aim of this research was to determine the pattern of fruit drop of Gadung 21, Manalagi 69 and Golek 3 I . The results of this researchs howedt hat the pattern of fruit drop of Gadung2 1, Golek 31 and Manalagi 69 was similar. All cultivars I showed that there was one peak (the highest number of fruit drop) in fruit drop. It occurred at 6 days after anthesis (DAA). After 24 DAA, the number offruit drop was constant, namely near to zero. It occurred until harvest.Key words: Mango, Fruit drop, Fruit set
Penampilan Pertumbuhan Jeruk Besar (Citrus grandis (L.) Osbeck) cv. Cikoneng pada Beberapa lnterstock Slamet Susanto; Ketty Suketi; , Mukhlas; Lia Rachmawati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 2 (2004): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (867.027 KB) | DOI: 10.24831/jai.v32i2.1437

Abstract

The purpose of the research was to study the growth performance of pummelo cv. Cikoneng grafted on several interstocks. Four interstock cultivars i.e. Flying Dragon (Poncirus trifoliata Var. Monstrosa), Troyer (Poncirus trifoliata x Citrus sinensis), Citrumelo (Citrus paradisi x Poncirus trifoliata) and Rangpur Lime (Citrus limonia Os beck x Troyer Citrange) weres ubjectedt o this experiment.A ll interstocksw ereg rafted on JapanscheC itroen rootstock.The experiment was arranged in a Randomized Block Design. All seedlings grew normal, no incompatibility symptom between scion and interstocks was observed. Rangpur Lime interstock tended to retard scion growth, inversely, Citrumelo interstock was the most promoted scion growth. Flying Dragon and Troyer had intermediate characteristic, their effect on scion growth was between Rangpur Lime andCitrumelo. Key words: Pummelo, Cikoneng, lnterstock
Kualitas dan Daya Simpan Buah Jeruk Fremont (Citrus reticulate var. Fremont) yang Dipanen dari Tingkat Ketinggian Lahan yang Berbeda. Maya Dewi Sulistyningrum; Slamet Susanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 3 (2004): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.458 KB) | DOI: 10.24831/jai.v32i3.1460

Abstract

The experiment was aimed to study the quality and shelflife of Fremont fruit harvested from different land elevation. Fruit were harvested according to orchard harvest criteria. The experiment used Randomized Complete Design, with the treatment of land elevation level i.e. 500 - 600 m, 600 - 700 m, 700 - 800 m above sea level. Land elevation level influence peel color, at the higher land elevation level the orange color on peel was more appeared. Land elevation level in the range of 500 - 800 m above sea level did nor affect firmness and total soluble solids  (TSS) content in fruit juice at harvest time, however there was a tendency that higher acid and vitamin C content were observed in fruit of tree grown in the higher land elevation. The decrease on weight of fruit, fruit firmness, acid and vitamin C contents and increase of TSS content were observed during storage. The fruit of Fremont not be stored more than four weeks, because in this experiment, the fruit at four week after harvest experienced significant weight loss and severe peel shrinkage they resulted in unmarketable fruit.
Pertumbuhan 11 Aksesi Stroberi yang Dibudidayakan Secara Hidroponik Slamet Susanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 31 No. 2 (2003): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.715 KB) | DOI: 10.24831/jai.v31i2.1468

Abstract

The objective of the experiment was to study the growth and fruit quality of several accessions of strawberry grown by hydroponics. The experiment was conducted at farmer farm in Pacet Cianjur, from March 1999 to June 2000. These accessions were collected from Cipanas Cianjur, Ciwidey and Pangalengan Bandung, all of those were unidentified its origin. Nutrition compound used was made by modify nutrition compound for tomato which was obtained from previous experiment. The result of this experiment showed that strawberry plant could produce runner with average one runner per month, whenever all fruit thinned. A strawberry plant produced one leave average per two week\', J 1-18 fruit per year with 13-24 gram per fruit or 210-314 gram per plant per year. It has been found that five accessions tasteless, four accessions had strong sour taste, one accession (No.4) with sweet taste and one another accession (No. 10) with sour sweet taste. The last two accessions had a good taste with fruit weight around 17 gram in average per fruit, smoth texture and adequate firmness. These accessions are being propagated for further experiment. Key words: Accessions, Hydroponics, Strawberry
PENGARUH PEMBERIAN LUMPUR BUANGAN DARI PENGOLAHAN LIMBAH SINTESIS ANTIBIOTIKA DAN PUPUK KANDANG TERHADAP PERTUMBUHAN DAN PRODUKSI STEVIA (Stevia rebaudiana BERTONI M.) Slamet Susanto; Muhammad Syukur
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 27 No. 2 (1999): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (710.008 KB) | DOI: 10.24831/jai.v27i2.1574

Abstract

The objective of the research was to investigate the effect of sewage application on growth and production of stevia, a sweetening alternative producing plant, as compared with manure application. Sewage is a by product of antibiotics processing of PT SBFI Sewage and manure application each consisted of 4 level, i.e. 0.0, 0.5, 1.0 and 1.5 kg per polybag. Sewage application has resulted in significant increase in tree high, leaf number, shoot number and root and shoot dry weight as compared with control. Manure application has resulted in significant increase in growth and production as compared with control. There was no interaction between sewage and manure application on all parameter observed
Co-Authors , Hariyadi , Hariyadi3 , Hasnam , Mukhlas , Sakhidin , Setyono . Santosa . Saputera . Strisno . Sutrisno A. S. Abidin Abdullah Bin Arif Abdullah Bin Arif Agus Purwito AHMAD JUNAEDI Ahmad Junaedi Ahmad S. Abidin Aji, Titistyas Gusti Ali Husni Ali Husni Ali Husni Ali Husni Amin Rejo Anas Dinurrohman Susila Ani Kurniawati Antik Siti Latifah Arifah Rahayu Asniwita Asniwita Atika Romalasari Bambang B. Santoso Bambang Budi Santoso Bambang Pramudya Bambang Pramudya Bambang S . Purwoko Bambang S. Purwoko Bambang Sapta Purwoko Bhayu Hartanti Dadang Dadang Dadang Hermansyah Dadang Hermansyah Deden Derajat Matra Delys Inkorisa Dewi Sukma Dewi, Iswari Saraswati Dhika Prita Hapsari DJUMALI DJUMALI DJUMALI DJUMALI, DJUMALI Dona Rustani DWI ANDREAS SANTOSA Dyah Retno Wulandari Dyah Retno Wulandari Edi Minaji Pribadi Edi Santosa Efendi, Darda Endro Priherdityo Erniawati Diningsih Erniawati Diningsih Erniawati Diningsih Evan Yonda Pratama Faqih Udin Fidya Novita Fiki, Ainun Gede Suastika GEDE SUASTIKA Gede Suastika Gede Suastika Giyanto, Giyanto Habibi, Irfan Hadi K. Purwadaria Handian Purwawangsa Hariyadi Hariyadi Harliani Sri Utami Henny Nurpa Anggriani Herik Sugeru Hermansyah, Dadang Hilda Susanti Hulu, Versi Putra Jaya I Wayan Budiastra Indriati Husain Iswari S Dewi Iswari S. Dewi Iswari Saraswati Dewi Jamhari Jamhari Karmanah, Karmanah Kartika Ning Tyas Kartika Ning Tyas Kartika Ning Tyas Ketty Suketi Kikin H Mutaqin Kosmaryadi, Nandi Kristriandiny, Oktiadewi Kudang B Seminar Kudang B. Seminar Leo Mualim M. Wahyudin Nasrulloh, M. Wahyudin Nasrulloh Matra, Deden Derajat Maya Dewi Sulistyningrum Maya Melati Moeljarno Djojomartono Moeljarno Djojomartono Moh Nailun Ni'am MOHAMMAD CHOLID MOHAMMAD CHOLID, MOHAMMAD Muhamad Ramdan Muhammad Syukur Muhammad Thamrin Nafi’ Kurniawan Natalia, Cristina Evi Neni Musyarofah Neni Musyarofah Nurul Khumaida Nurul Khumaida Oktiadewi Kristriandiny Parameswara, Yosephine Sista Pratama, Evan Yonda Priherdityo, Endro Purwoko, Bambang Sapto R. Poerwanto Raden Ajeng Diana Widyastuti Rahayu, Arifah Renaldy Susanto Resti Putri Septyani Resti Putri Septyani Retty Nurfazizah Roedhy Poerwanto Roedy Poerwanto Rustam, Rustam Rustani, Dona Sakhidin Sakhidin Salsabila, Unik Hanifah Sandra A. Aziz Sandra Arifin Azis Sandra Arifin Aziz Santosa Santosa Sintho Wahyuning Ardie Siregar, Shella Elvira Siti Aisyah Rohmatus Sa’adah Siti Mariana Widayanti SRI HENDRASTUTI HIDAYAT Sri Minten Sriani Sujiprihati Sudirman Yahya Sukma, Dewi Suroso Suroso Suryo Wiyono Sutrisno Sutrisno Sutrisno Sutrisno Suyanto Kartosoewarno Thamara, Aria Titistyas Gusti Aji TRI ASMIRA DAMAYANTI Tri Muji Ermayanti Tri Muji Ermayanti Tri Muji Ermayanti Ummu Kalsum Wahyu Fikrinda Widyaswara, Muhammad Heraldi Garda Willy Bayuardi Suwarno Winarso D. Widodo Wulandari, Dyah Retno Yosephine Sista Parameswara Yudi Chadirin Yul Y Nazaruddin