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AGRIVITA, Journal of Agricultural Science
Published by Universitas Brawijaya
ISSN : 01260537     EISSN : 24778516     DOI : https://doi.org/10.17503
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research papers and article review in plant science i.e. agronomy, horticulture, plant breeding, soil sciences, plant protection and other pertinent field related to plant production. AGRIVITA is published three times per year. The Journal has been indexed in SCOPUS, Scimago Journal Ranks (SJR), Emerging Source Citation Index ( ESCI-Web of Science), EBSCO, ProQuest, Google Scholar and others international indexing. AGRIVITA is accredited first grade (Sinta 1/S1) for five years (2018-2023) based on Decree No: 30/E/KPT/2018 by Ministry of Research, Technology and Higher Education (Ristek Dikti), The Republic of Indonesia. We accept submission from all over the world. All submitted articles shall never been published elsewhere, original and not under consideration for other publication.
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Articles 934 Documents
 66   67   68   69   70 
Local Adaptation to Extreme Weather and It’s Implication on Sustainable Rice Production in Lampung, Indonesia Dulbari Dulbari; Edi Santosa; Yonny Koesmaryono; Eko Sulistyono; Anung Wahyudi; Herdhata Agusta; Dwi Guntoro
AGRIVITA, Journal of Agricultural Science Vol 43, No 1 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i1.2338

Abstract

Extreme weather incidents refer to high rainfall and strong winds have been speculated to be detrimental on rice production. However, researches on the local adaptation to their impact on rice production are limited especially on tropical region like Indonesia. A study was conducted in Pesawaran, West Lampung, North Lampung, and Bandar Lampung using time series data of 2000-2015 and ground checking during extreme weather and normal seasons and its implication on sustainable management. Data were evaluated using multivariate regressions. Results demonstrated that the impact of extreme weather on the reduction of rice production was weak, 0.92%. Shifting on rice production among swampy, irrigated, and dry lands at which covered area of 13.67%, 42.69% and 43.65%, respectively, minimized the impact of the extreme weather. During limited precipitation, irrigated and swamplands had 2.5-3.0 times cropping intensity. Conversely, during La-Nina with excess precipitation, cropping in irrigated and drylands increased by 20 and 58%, respectively. Moreover, the local government maintained annual production improvement by about 5% through expansion of irrigated land, high yielding varieties and inputs subsidies. Considering that incident of extreme weathers tended to occur more frequently, consequently, planting calender utilization and rice variety adapted should be implemented.
Agro-morphological and Genotypic Diversity among Rice Germplasms under Rainfed Lowland Condition Krishna Dhakal; Ram Baran Yadaw; Bandhu Raj Baral; Keshab Raj Pokhrel; Santosh Rasaily
AGRIVITA, Journal of Agricultural Science Vol 43, No 3 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i3.3026

Abstract

The present study was performed in a randomized complete block design with three replications to identify higher yielding genotypes and putative traits for grain yield improvement under a rainfed environment. Genotypes recorded highly significant variation for most of the observed agro- morphological traits except the number of effective tillers/m2. IR102774-31-21-2-4-7 (5.40 t/ha) followed by IR99739: 2-1-1-2-1 (5.22 t/ha), and IR103587-23-2-1-B (5.05 t/ha) respectively were the higher grain yielders. These high yielders were among the sets of early flowering (85-96 days) and maturing (120-130 days) genotypes. Plant height (PHT- 86.62% and 25.69%), harvest index (HI-87.17% and 44.66%), and thousand-grain weight (TGW- 71.06% and 30.05%) recorded high heritability values coupled with higher genetic advance as a percentage of the mean (GAM). IR102774-31-21-2-4-7 produced superior agro-morphological character for several traits like grain yield, thousand-grain weight, biological yield, plant height, and days to flowering and maturity. Plant height, biological yield, harvest index, days to flowering, and maturity were highly associated with grain yield and had medium to high heritability and GAM values. Therefore, these traits might be of importance for selection in grain yield improvement of rice under rainfed lowland conditions.
Growth Response of Clove (Syzygium aromaticum L.) Seedlings to Different Light and Water Regimes Adi Setiawan; Satoshi Ito; Yasushi Mitsuda; Ryoko Hirata; Kiwamu Yamagishi; Yasa Palaguna Umar
AGRIVITA, Journal of Agricultural Science Vol 43, No 1 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v1i1.2826

Abstract

The growth responses of clove seedling to light and soil water regimes were studied by a field experiment with shading and irrigation treatments to clarify their growth traits at the early stage of plantation establishment. Eighteen-month-old clove seedlings were subjected to twelve treatments, that is, 3 shading treatments (0%, 60% and 80% shading) × 4 watering treatments (1.0, 0.75, 0.5 and 0.25 l/m2 /day), for ca. 6 months. Increment ratio of seedling height (IH), number of newly created buds (NB) during the experimental period and dry mass per plant at the end of the experiment (leaves: LM, stem and branch: SM, root: RM and total plant: TM) were compared among the treatment. The growth of clove seedlings (height < 150 cm) was generally more susceptible to water stress than to low light availability. The growth retardation by water shortage was observed in all the examined parameters except for SM. The effect of the shading treatment appeared to be limited; however, LM and NB showed significantly lower values under the heavy shade (80% shading). We concluded that dense planting of clove seedling with other competitive crops should be avoided to ensure the fast growth of clove seedlings at the establishment stage.
Development of Quick Test Method for Soil pH, Nitrate, Phosphorus, and Potassium Combining Chemicals and Phone Cellular Application Arief Hartono; Desi Nadalia; Dede Sulaeman
AGRIVITA, Journal of Agricultural Science Vol 43, No 2 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i2.2760

Abstract

Conventional soil analyses are time-consuming; therefore, the soil quick test (QT) method is needed. This study was to assess the accuracy of soil pH, N-nitrate, available phosphorus (P), and exchangeable potassium (K) analysis determined by the QT method developed by Akvo and calibrated with standard laboratory methods. The field research collected 131 soil samples, collected from horticultural lands in 4 regencies within East Java-Indonesia, started from February to August 2017. Soil analysis measured were soil pH, N-nitrate, available P, exchangeable K, textures, organic C, and CEC. The colorimetric-based QT method was performed on the soil sample extracted by Mehlich 1, and the color was developed by dipping strip test paper in supporting chemical solutions. A smartphone camera was used for the reading, and the results were directly displayed on the smartphone screen. The QT method’s calibration models were created by stepwise multiple linear regression involving the correlated soil chemical properties. The values of calibrated QT method (i.e. soil pH, N-nitrate, and available P) showed significant correlations with the values from the laboratory. However, the results suggested that the QT method developed by Akvo could be used for nitrate due to having a relatively high correlation with that of standard laboratory. 
Essential Oil Components, Metabolite Profiles, and Idioblast Cell Densities in Galangal (Kaempferia galanga L.) at Different Agroecology Subaryanti Subaryanti; Yohana Caecilia Sulistyaningsih; Dyah Iswantini; Triadiati Triadiati
AGRIVITA, Journal of Agricultural Science Vol 43, No 2 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i2.2631

Abstract

Galangal is widely cultivated for the multifunctional plant. This study analyzed the essential oil chemical components, metabolite profiles, and idioblast cell densities in seven galangal accession grown at two different altitudes (locations A and B). The galangal accessions included: Purbalingga, Cilacap, Purworejo, Karanganyar, Pacitan, Madiun, and Galesia 2 which was used as the control. The results showed that the highest essential oil content was obtained from MAD (3.22%) at location A. The highest levels of ethyl-p-methoxycinnamate (EPMC) were obtained from PBG (74.8%) at location B and PCT (71.6%) at location A. The metabolite profiles of the galangal rhizomes were divided into two clusters based on the metabolite content. The first cluster had one accession: PCT from location A with genkwanin as the metabolite marker. The second cluster consisted of CLP from location A and PBG, MAD, and GAL2 from location B. The highest density of idioblast cells was found in PCT (90.5 cells/mm2) at location A and PBG accessions (77.1 cells/mm2) at location B. The PBG and PCT accessions can be recommended as a candidate of superior varieties based on their high EPMC content.
Notes on the Citrus Rust Mite, Phyllocoptruta oleivora (Ashmead), as a Major Pest of Citrus in Indonesia Retno Dyah Puspitarini; Otto Endarto
AGRIVITA, Journal of Agricultural Science Vol 43, No 3 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i3.2997

Abstract

Most citrus farmers in Indonesia believed that rust on citrus fruits resulted from insect attacks. This research aims to determine the cause of rust on citrus fruit and its damage intensity. The study was carried out in commercial citrus plantations in three provinces, on Citrus sinensis and C. reticulata plantations in East Java, C. reticulata and C. suhuensis in West Kalimantan and C. suhuensis in North Sumatra. An additional observation was also conducted to collect mite specimens on citrus plantations in Malang, East Java. Scanning Electron Microscope (SEM) and light microscope were used to observe and identify each collected sample. Results showed that the cause of rust-colored citrus fruit in three provinces is the citrus rust mite, Phyllocoptruta oleivora (Ashmead). It belongs to the family Eriophyidae with two pairs of legs with regular segmentation, five-rayed featherclaws, and a net pattern on prodorsum. The specific damage produced by this mite is rust-colored symptoms. Damage intensity of citrus rust mite in tree provinces averaging 32.6%, ranging from 30 to 40%, and ca. the mite attacks 90% of citrus fruits. Predaceous mites, predaceous insects, and entomo-acaropathogenic fungi are found on plantations.
Monitoring the Effects of Sea Level Rise on some Soil Properties Related to Salt Affected Soils in Agricultural Areas of Lower Central Plain, Thailand Phankamolsil, Napaporn
AGRIVITA, Journal of Agricultural Science Vol 43, No 3 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v43i3.2183

Abstract

The research was implemented to monitor the effects of sea level rise on some soil properties associated with salt affected soils in agricultural areas on the Lower Central Plain, Thailand and determine the severity of salt impact during different periods in these areas. To achieve these goals, soil samples from 11 locations were selected for investigation. All soils were deep, poorly drained, mainly fine textured, and low developed. The soil moisture ranged from 20.84-79.04%. Soil electrical conductivity (ECe) varied substantially between locations, depth levels, and periods of soil sampling, ranging from 0.21-4.42 dS/m. The sodium adsorption ratio (SAR) of these soils during the periods of soil sampling was rather higher than 13 in either some or all layers of the soil profiles, ranging from 6.80-41.89. These results suggested that many of the study locations were affected by salts and all sites could be classified as sodic soils with the classification increasing to saline-sodic soils in locations N4 in April, N5 in March, July and August, and P4 in March 2018. Thus, during these occasions, it was possible that the increased salt levels were due to the rising sea level compared to during May and June when there was high precipitation.
GRANULAR ENRICHED-COMPOST FROM ORGANIC WASTE CAMPUS AS SOIL CONDITIONER IN INTENNSIVE RICE FARMING SYSTEM Azizah, Nur; Prasetya, Budi; Kurniawan, Syahrul
AGRIVITA Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i2.220

Abstract

 Effort to reduce the high dependence of farmers on inorganic fertilizers is introducing compost as soil conditioner. The objectives of this research are to create enriched granular-compost (EGC) and to test its effect on nutrient availability, plant growth, and grain yield in intensive farming systems. The research was conducted in two consecutive years (2011-2012), consisting of three steps: production of EGC, incubation and field experiment. Incubation experiment was designed by randomized complete design with 5 treatments (control, 4, 6, 8, and 12 Mg ha-1), and the design of field experiment was randomized block design with 7 treatments (control, inorganic fertilizer (IF), 25% EGC + 75% IF, 50% EGC + 50% IF, 75% EGC + 25% IF, 100% EGC + 100% IF and 100% EGC). The results showed that application of EGC increased total-N and P-available 12.5% and 33% respectively on the 10th day after incubation. The highest grain yield (6.13 Mg ha-1) was gained from the application of 100% EGC + 100% IF. The productivity of rice is closely related to the number of productive panicles per plant (r = 0.507*) and percent of filled grain (r = 0.685*).  Keywords: enriched granular-compost, nutrient availability, grain yield
Pathogenicity, Development and Reproduction of The Entomopathogenic Nematode Steinernema sp., in Mealworm Tenebrio molitor Baliadi, Yuliantoro; Sastrahidayat, Ika Rochdjatun; Djauhari, Syamsuddin; Rahardjo, Bambang Tri
AGRIVITA Journal of Agricultural Science Vol 33, No 3 (2011)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v33i3.74

Abstract

The pathogenicity, development and reproduction of Steinernema sp., isolate Skpr-20/Str, were studied using Tenebrio molitor. Results revealed that pathogenicity, development and reproduction were significantly influenced by nematode doses. Although the number of invading IJs increased with increasing dose, percentage penetration declined. The IJs reached adulthood within 3 days. Females laid eggs from day 4-7. All eggs remaining inside uterus develop inside the maternal body. The first female bearing endotokia matricida was observed on day 5. In a sand-based assay, nematode was more pathogenic at lower dose instead of higher ones, where optimum dose was 80 nematodes per larva and average number of progeny per female was 5438. Under crowded conditions, development proceeds to IJ stage instead of the J3. The average length and width decreased with increasing of nematode doses. The IJ produced in cadavers infested with 640 nematodes per larva was significantly smaller (492 ± 6.4 µm) than offspring from other doses. The number of days which nematodes first emerged from the cadavers decreased with increasing dose. IJ first emerged at the average of 10-13 days at high IJ densities. It is concluded that the wide experimental characteristic of EPNs is also true for Steinernema sp., isolate Skpr-20/Str.Keywords: development, emergence period, endotokia matricida, entomopathogenic nematode, isolation, pathogennicity, Steinernema sp., isolate Skpr- 20/Str
Pacu Produksi panen tanaman kentang dengan aplikasi pupuk cair Yudi Anto
AGRIVITA, Journal of Agricultural Science Vol 38, No 2 (2016): JUNE
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v38i2.3649

Abstract

Berapa produksi kentang granola per ha? Jika pertanyaan itu diajukan kepada Yuli Sungkowo, pekebun di Tosari, Kabupaten Pasuruan, langsung dijawab cepat: 70 ton. Itu 3 kali lipat dari rata-rata produksi pekebun lain di Indonesia yang cuma 20—25 ton per ha. Malahan Yuli yang mengelola 5 ha lahan dapat panen lebih cepat 45 hari ketimbang pekebun lain.Yuli Sungkowo tidak menanam kentang di lahan bukaan baru. Bukan. Pekebun kentang sejak 25 tahun lamnan itu membudidayakan Solatium tuberosum di lahan yang bertahun-tahun juga ditanami kentang. Lahannya di sentra Gunung Bromo, Kabupaten Pasuruan, Jawa Timur, di ketinggian 1.700 m dpi.Teknik budidaya kentang organik  serupa dengan pekebun kentang lain di Indonesia. Misalnya sebelum penanaman, tanah diolah, diratakan, dan dibuat guludan dengan lebar 75 cm. Jarak antarbedengan 30 cm. Setelah itu, guludan ditaburi 1,5 ton pupuk kandang dan 800 kg pupuk ponska per hektar. Tanah diaduk dan diratakan kembali dengan cangkul. Sebelum penanaman, Furada ditaburkan di lahan itu.Pupuk cairSatu hal yang membedakan cara budidaya itu adalah Yuli Sungkowo menambahkan pupuk cair. Itu dilakukan pekebun lain di sana. Kandungan pupuk cair yang berbahan baku ikan mujair itu berupa nitrogen 3,12%, fostat 0,25%, kalium oksida 3,04%. Nutrisi itu juga mengandung unsur mikro seperti besi, mangan, tembaga, khlorin, dan sulfat.Pupuk cair itu dilarutkan dalam air dengan perbandingan 1:4. Untuk satu hektar, Yuli perlu 576 liter larutan hasil pencampuran 12 botol berisi masing-masing 12 cc. Penyemprotan pertama saat anggota famili Solanaceae itu berumur 12 hari dengan interval 8 hari dan frekuensi 5 kali. Dampak pemberian pupuk itu tampak ketika tanaman berumur sebulan. Saat itu Januari 2006, tanaman milik pekebun-pekebun lain luluh lantak akibat derasnya hujan. Kentang di kebun Yuli tetap vigor.Ketika berumur sebulan, tanaman kentang tampak subur. Itu terlihat dari sosok tanaman yang lebih rimbun dibanding tanaman pekebun lain. Oleh karena itu ia pun berencana memanennya pada umur 70 hari untuk dimanfaatkan sebagai bibit. Pada 20 Maret 2006, ia memanen kerabat tomat itu. Hasilnya membuat ia terbelalak. Sebab, ukuran umbi amat besar layaknya untuk konsumsi, mencapai 100—500 g. Padahal, bobot umbi untuk bibit rata-rata 60—80 gram.Meski umur tanaman baru 70 hari, daging umbi lebih padat dan layak konsumsi. Itu diukur dari bobot per karung ukuran 75 cm x 60 cm yang biasanya memuat 54—64 kg, kini menjadi 60—70 kg. Artinya, selain mendongkrak produktivitas, Yuli juga berhasil memangkas waktu produksi yang biasanya 115—120 hari, kini hanya 70—75 hari.Total jenderal volume panen perdana mencapai 35 ton dari lahan 0,5 ha dengan populasi 45.000 tanaman “Ini luar biasa” ujarnya. Ia memang mengelola 5 ha lahan,tetapi panen dilakukan bertahap. Panen periode berikutnya berlangsung pada akhir April 2006 sehingga volume panen belum diketahui. Artinya produksi rata-rata sekitar 70 ton per ha. Jika memanen untuk bibit, biasanya ia hanya mengangkut 12 ton dari lahan 0,5 hektar atau 24 ton per hektar. Peningkatannya hingga 23 ton.Untung besarDari total produksi 35 ton, 70% atau sekitar 24,5 ton kentang bermutu A yang dijual Rp2.200 per kg. Cirinya bobot umbi lebih dari 100 g. Sedangkan kentang bermutu B bobot 60—100 g, hanya 25% (8,75 ton). Namun, ia tidak menjualnya. “Saya simpan untuk bibit,” kata Yuli. Kentang berkualitas rendah alias apkir sekitar 1,75 ton, dijual Rpl.000 per kg.Total jenderal, Yuli meraup omzet Rp55-juta atau untung sekitar Rp44- juta dari lahan 0,5 hektar. Jika dijual seluruhnya (termasuk kentang mutu B, red), Yuli bisa mendapatkan tambahan keuntungan Rpl5,75-juta. Menurut ayah 2 anak itu, biaya penanaman kentang 0,5 hektar Rp 10.942.000. Jumlah itu tidak jauh berbeda dengan biaya produksi pada musim tanam sebelumnya. “Saya hanya menambah biaya Rp252.000 untuk membeli tambahan pupuk cair,” ujar pria 46 tahun itu.Menurut Ir Gustaaf A Wattimena PhD, guru besar bidang hortikultura dan kultur jaringan Institut Pertanian Bogor, hasil yang dicapai Yuli sangat fantastis. Biasanya, kentang berumbi pada umur 45—60 hari. Setelah itu, pekebun bisa memanen 600 kg umbi per hari selama 60 hari berturut-turut dari lahan 1 ha. Total volume produksi 36 ton per hektar.Keberhasilan Yuli mendongkrak produksi kentang, belum dapat diklaim akibat pupuk cair yang ia gunakan. “Banyak faktor yang mempengaruhi kualitas tanaman,” kata Wattimena. Faktor-faktor itu antara lain rendahnya serangan hama dan penyakit, kondisi tanah, ketersediaan air, serta iklim. “Kalau pun kondisinya sangat ideal, produksi kentang maksimal 40 ton per hektar,” ujar ahli mikrobiologi itu.Dosen Fakultas Pertanian IPB itu mengungkapkan, meski umbi jumbo, belum tentu berkualitas prima. “Umbi besar tapi kandungan airnya tinggi, tetap saja tidak bermutu. Kualitas diukur dari bobot kering umbi,” kata peraih doktor hortikultura University of Wisconsin, Amerika Serikat itu.Untuk kentang granola, bobot kering minimal 14% dari bobot total umbi. Sedangkan untuk kentang industri pengolahan minimal 20%. Memang kualitas umbi yang dihasilkan Yuli belum teruji kualitasnya. Meski begitu, toh Yuli telah meraup untung hingga berlipat-lipat. Itulah sebabnya, pekebun-pekebun lain di Pasuruan kini mengikuti jejak Yuli: menambahkan pupuk cair.

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