scholarly journals Evaluasi ketahanan simpan enam belas genotip benih jagung hibrida Unpad pada periode simpan empat bulan

Kultivasi ◽  
2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Anne Nuraini ◽  
Sumadi Sumadi ◽  
Muhamad Kadapi ◽  
Agus Wahyudin ◽  
Dedi Ruswandi ◽  
...  

Abstract. Seed storage is a post-harvest activity that is done to maintain the seed quality before planting. The problem often encountered in seed storage is the rapid reduction of seed quality in short period of time. Seed storability is important to maintain seed quality in good condition. The aim of this research was to find out the best seed storability of 16 genotypes of UNPAD Hybrid Maize Seeds after 4 months storage period. This research was done by identificating best seed storability after some storage period of single hybrid maize seed, namely, DR (Downey Resistance), BR, MDR (mutant of DR), and MBR (mutant of BR) which are a collection of Maize Development Team Plant Breedung Laboratory Faculty of Agri-culture Universitas Padjadjaran. This research was conducted from October 2016 until February 2017 at Seed Technology Laboratory Faculty of Agriculture Universitas Padjadjaran. Completely Randomized Design was used and repeated two times. Data were tabulated and analyzed using the F test, while to test the significant difference further were using Scott Knott test level of 5%. The result showed that there is significant difference in electrical conductivity value, 1000 grain weight, seed germination capacity, vigor index, seed growth simultaneously, and normal seedling dry weight after 4 months storage period. MDR 18.5.1, DR 17, 4BR 157, 4MDR 14.1.1  were the best genotype on seed storability after 4 months storage period.Keywords : maize, genotypes, seed storability,  storage period Sari. Penyimpanan benih merupakan kegiatan pascapanen yang dilakukan untuk memper-tahankan mutu benih hingga benih tersebut siap ditanam. Permasalahan yang sering dihadapi pada penyimpanan benih yaitu penurunan mutu benih secara cepat dalam periode yang belum terlalu lama. Tujuan dari penelitian ini adalah untuk mengetahui ketahanan simpan 16 genotip benih jagung hibrida UNPAD yang terbaik setelah periode simpan empat bulan. Penelitian ini dilakukan dengan mengiden-tifikasi ketahanan simpan terbaik setelah bebe-rapa periode simpan dari genotip benih jagung hibrida tunggal, yaitu genotip DR (Downey Resistance), BR, MDR (mutan DR), dan MBR (mutan BR) yang merupakan koleksi Tim Pengembangan Jagung Laboratorium Pemuliaan Tanaman Fakultas Pertanian Universitas Padja-djaran. Penelitian dilakukan pada bulan Oktober 2016 sampai Februari 2017 di Labora-torium Teknologi Benih Fakultas Pertanian Universitas Padjadjaran. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Leng-kap (RAL) 2 ulangan. Data dianalisis mengguna-kan uji F, sedangkan perbedaan yang signifikan antar perlakuan digunakan uji Scott Knott pada taraf nyata 5%. Hasil penelitian menunjukkan terda-pat perbedaan yang signifikan pada parameter daya hantar listrik, bobot 100 butir, daya berkecambah, indeks vigor, keserempakan tum-buh, serta bobot kering kecambah normal setelah periode simpan 4 bulan. Genotip MDR 18.5.1, DR 17, 4BR 157, 4MDR 14.1.1 merupakan genotip yang memiliki ketahanan simpan  setelah periode simpan 4 bulan.Kata kunci: jagung, genotip, ketahanan simpan, periode simpan

2012 ◽  
Vol 34 (4) ◽  
pp. 541-548 ◽  
Author(s):  
Ísis Barreto Dantas ◽  
João Almir de Oliveira ◽  
Heloisa Oliveira dos Santos ◽  
Édila Vilela Resende Von Pinho ◽  
Sttela Dellyzete Veiga Franco da Rosa

Seed quality may be affected by several factors, including permeability, color, and lignin content in the seed coat. This study aimed at evaluating influence of lignin content in the tegument of seed samples of six different soybean cultivars, in which half of each sample was inoculated with the fungus Aspergillus flavus, on the physical and physiological quality, and on the seed health, during 180 days storage period, under cold chamber with controlled conditions of temperature and RH. For that, at each interval of 60 days, samples were removed, and the physiological quality of these seeds was assessed by means of moisture and lignin contents; and by tests of seed health, germination, and electrical conductivity. The moisture content of seeds remained constant during all storage period. In the seed health test, it was found that inoculation was efficient, once the minimum incidence of the fungus in the inoculated seeds was 85%. In the germination test, there was a trend of reduction on percentage germination with the increase in storage period. However, there was an increase on electrical conductivity of seeds assessed. It was concluded that there is no interference of the lignin content in the seed coat on the resistance to infection by the fungus Aspergillus flavus, even after seed storage for a period of 180 days.


2017 ◽  
Vol 7 (3) ◽  
pp. 146
Author(s):  
Astryani Rosyad ◽  
M. Rahmad Suhartanto ◽  
Abdul Qadir

<p>ABSTRACT<br />Information of seed quality during storage can be determined through the actual storage and storability vigor estimation. This study aimed at comparing effective accelerated aging method<br />between physical and chemical, and studying the seed deterioration during storage in ambient (T =28-30 0C, RH=75-78%) and AC (T =18-20 0C, RH =51-60%) condition with three levels of initial moisture content (8-10%, 10-12%, and 12-14%) for 20 weeks. The final objective of this research<br />was to develop model for storability vigor of papaya seed. Two experiments, accelerated aging and seed storage were conducted at Seed Laboratory, Department of Agronomy and Horticulture, Bogor Agricultural University from October 2015 to May 2016. A completely randomized design with nested factors and four replications was applied to both experiments. The results showed that physical accelerated aging using IPB 77-1 MMM machine was more effective than chemical accelerated aging using IPB 77-1 MM machine for papaya seed. The viability of seed stored in AC condition remained high until the end of the storage period, whereas it declined at 16 week storage period in the ambient condition. The viability of seed with initial moisture content of 12-14% declined faster than that of initial moisture content of 8-10% after 18 week storage periode. The model used to estimate the storability vigor of papaya seed accurately was the equation y = a + b expcx where y : storability vigor estimation, x : aging time and a,b,c : constant value. Simulation of storability vigor estimation with constant value of a, b, c and input of aging time can estimate storability seed vigor in actual storage.<br />Keywords: accelerated aging, IPB 77-1 MM machine, IPB 77-1 MMM machine, seed storage, simulation</p><p>ABSTRAK<br />Informasi mutu benih selama penyimpanan dapat diketahui melalui penyimpanan secara aktual dan pendugaan vigor daya simpan. Penelitian ini bertujuan untuk membandingkan metode<br />pengusangan cepat yang efektif antara fisik dengan kimia serta mempelajari pola penurunan viabilitas benih selama penyimpanan aktual pada kondisi simpan kamar (suhu =28-30 0C, RH =75-78%) dan AC (suhu =18-20 0C, RH =51-60%) dengan tiga tingkat kadar air awal (8-10%, 10-12%, dan 12-14%) selama 20 minggu. Tujuan akhirnya adalah membangun model vigor daya simpan benih pepaya. Penelitian pengusangan cepat dan penyimpanan dilakukan pada bulan Oktober 2015 sampai Mei 2016 di Laboratorium Benih, Departemen Agronomi dan Hortikultura, Institut Pertanian<br />Bogor. Kedua penelitian menggunakan rancangan acak lengkap tersarang dengan empat ulangan. Hasil penelitian menunjukkan bahwa pengusangan cepat secara fisik dengan alat IPB 77-1 MMM lebih efektif daripada pengusangan kimia dengan alat IPB 77-1 MM untuk benih pepaya. Viabilitas benih yang disimpan pada kondisi AC tetap tinggi hingga akhir periode simpan, sedangkan pada kondisi kamar penurunan viabilitas dimulai pada periode simpan 16 minggu. Benih yang disimpan dengan tingkat KA awal sebesar 12-14% lebih cepat mengalami penurunan viabilitas mulai periode simpan 18 minggu dibandingkan dengan benih dengan KA awal 8-10%. Hasil penelitian juga menunjukkan terdapat korelasi yang erat antara pola kemunduran benih pada pengusangan cepat dan penyimpanan aktual, sehingga model pendugaan vigor daya simpan (y) berdasarkan waktu pengusangan (x) dapat disusun dengan persamaan y = a + b expcx. Simulasi pendugaan vigor daya simpan dengan nilai konstanta a, b, dan c serta input waktu pengusangan dapat menduga vigor daya simpan benih selama penyimpanan aktual.<br />Kata kunci: alat IPB 77-1 MM, alat IPB 77-1 MMM, pengusangan cepat, penyimpanan benih,<br />simulasi</p>


2018 ◽  
Author(s):  
Muhammad Amir Bakhtavar ◽  
Irfan Afzal ◽  
Shahzad Maqsood Ahmed Basra

AbstractSeed moisture content (SMC) is an important attribute to seed quality. Maintaining seed dryness throughout supply chain (The Dry Chain) prevents seed germination and quality losses. Ambient relative humidity (RH) and temperature affect seed moisture and thereof seed moisture isotherm. Present study was conducted to compare the moisture adsorption isotherms of wheat, maize, cotton and quinoa seeds packed in hermetic Super Bag and traditional packaging materials including paper, polypropylene (PP), jute and cloth bags. Seeds were incubated at 60, 70, 80 and 90% static RH. Nearly straight line moisture isotherms for all crop seeds were obtained in Super Bag. Seed moisture contents increased in traditional packaging materials with increasing RH. At higher level of RH, moisture contents increased slightly (1-2%) in Super Bag, whereas this increase was much higher in traditional packaging materials (≈9% higher than original SMC at 90% RH). In second study, seeds were dried to 8 and 14% initial seed moisture contents using zeolite drying beads and were stored in hermetic and traditional bags for a period of 18 months. For all crop seeds, germination was severely affected in all packaging materials both at 8 and 14% initial SMC except storage in Super Bag at 8% SMC. Wheat seed stored in Super Bag at 8% SMC almost maintained initial germination while germination of cotton, maize and quinoa seeds declined 7%, 14% and 30% respectively in Super Bag at 8% SMC. Seed storage in Super Bag can help to prevent the significant increase in seed moisture at higher RH as is evident from moisture isotherm study, thus helps to preserve quality of maize, wheat, cotton and quinoa seeds by maintaining The Dry Chain throughout the storage period.


2016 ◽  
Vol 34 (3) ◽  
pp. 219
Author(s):  
Ari Wahyuni ◽  
M. R. Suhartanto ◽  
Abdul Qadir

<p>Soybean seed viability declines during seed storage. Soybean seed deteriorates rapidly, affected by its high protein content and often high humidity in the tropical environment. This research was aimed to develop dynamic model of soybean seed viability in an open storage. The study was conducted in three stages, namely: 1) desk study, 2) seed storage experiment, 3) development of seed storage model, simulation and verification of the model. The second stage of the experiment consisted of soybean seed storing and germination testing using completely randomized design. Treatments were three initial moisture content (7-8%, 9-10% and 11-12%) and four varieties of soybean (Anjasmoro, Wilis, Detam-1 and Detam-2). The results showed that the seed behaviour during storage period were affected by initial seed moisture content, initial viability, varieties and environmental condition. Therefore, seed moisture content, initial viability and varieties may be used as input model. Moisture content, integreting seed respiration, electric conductivity and seed storability vigor (VDSDB) were as model output. Simulation of Seed Storability Vigor Prediction Model with Model Construction Layer-Stella (MCLS) using relative humidity (RH), temperature, seed permeability, initial moisture content and initial viability as input model could logically predict the seed moisture content and seed storability vigor (VDSDB).</p>


Author(s):  
Astiti Rahayu ◽  
Triani Hardiyati ◽  
Ponendi Hidayat

Increased productivity of cocoa needs high quality of cocoa seeds which are generally provided by certified seed gardens located far from smallholders farm, where seed delivery takes long time and may reduce physiological quality of seeds. One effort to maintain the seed quality is by treatment the seeds with polyethylene glycol6000 (PEG 6000). This study was aimed to study the interaction of PEG 6000 concentration and storage period on cocoa seed quality, and to determine the best concentration of PEG 6000 and storage period to maintain cocoa seed quality. The research was conducted in seed storage room, seed laboratory and green houseof PPPPTK, Cianjur. The experimental design used was a factorial completely randomized design and each combination treatment repeated three times. The first factor was concentration of PEG 6000 of 0%, 20%, 40%, and 60%, and the second factor was the storage period of 3 weeks, 6 weeks, 9 weeks, and 12 weeks. The results showed that concentration of PEG 60% with three weeks storage period was able to minimize the number of moldy seeds. The concentration of PEG 20%, 40%, and 60% were able to prevent seed germination in storage until six weeks. Concentration of PEG 6000 20% was able to maintain moisture content, seed germination, and germination rate.Key words:cocoa seed, storage, recalcitrant, PEG


2018 ◽  
Vol 48 (3) ◽  
pp. 28-33 ◽  
Author(s):  
A. Ya. Sotnik

The work presents the evaluation results of the viability of oat and barley collection varieties during storage in the laboratory conditions at the temperature of 20-25o C. Seed storage covered the period of 2006-2017. The research included 24 varieties of barley and 29 varieties of chaffy oats of domestic and foreign breeding collection. The seeds were stored in different packaging materials such as standard paper package; glass bottles of 0.25 liter and plastic bottles of 0.5 liter. The initial seed moisture content was 8.5-9.0 per cent. The varieties were divided into groups taking into account the initial laboratory seed germinating ability. For oats the fi rst group included 10 varieties with initial germination of 96-99%; the second group included 12 varieties with initial germination of 91-95%; the third group included 7 varieties with initial germination of 86-90%. For barley the fi rst group consisted of 5 varieties with initial germination of 91-99%; the second group consisted of 10 varieties with initial germination of 81-90%; the third group consisted of 9 varieties with initial germination of 71-80%. Determination of seed quality was carried out in 7 and 11 years’ time. The initial moisture content of seeds remained without signifi cant changes in all packaging types during the storage period of 11 years. It was also noted that germination of oat and barley seeds during 7 years of storage did not differ in any type of package. The average value in all three groups of oats was 93.2%. After 11 years of storage, germination of oat differed a little, depending on the type of package. In a paper bag it was 80.4%; in a glass bottle – 88.2%; in a plastic bottle – 85.1%. The average initial germination of three groups of barley in 7 years’ time of storage was 84.7%. After 11 years of storage, germination of barley was 53.2% in a paper bag; 63.3% in a glass bottle; 61.8% in a plastic bottle It was revealed that oat and barley seed germination in 7 years’ time did not differ in any type of package. After 11 years, germination of oats was 5.8% higher, and germination of barley was 8.6% higher in a sealed plastic bottle than in a standard paper bag. Differences in seed germinating ability between the glass and plastic bottles were not observed.


2018 ◽  
Vol 3 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Gopal Bhandari ◽  
Tara Bahadur Ghimire ◽  
Sangita Kaduwal ◽  
Jiban Shrestha ◽  
Ramesh Acharya

The study was aimed to examine the effects of various storage structures and moisture contents on seed quality attributes of quality protein maize seed. The quality protein maize (QPM-1) seed was tested in conventional seed storage containers (Fertilizer sack and earthen pot) and the improved hermetic ones (Metal bin, Super grain bag, and Purdue Improved Crop Storage (PICS) bag) at Seed Science and Technology Division, Khumaltar, Nepal during February, 2015 to January 2016. Ten treatments comprising 5 storage devices in two moisture regimes (11% and 9%) replicated thrice and laid out in Completely Randomized Design (CRD). Data on temperature, relative humidity (RH), germination, electrical conductivity (EC), seed moisture content (MC) were collected bimonthly. The conventional containers were found liable to the external environmental condition whereas the hermetic structures observed with controlled RH level below 40% in all combinations. Electrical conductivity (EC) for seed vigor showed that hermetic containers provide higher seed vigor than the conventional ones. Up to 4 months all treatments were found statistically at par for germination. A significant difference was observed in each treatment after 4 months where PICS bag & Super grain bag showed best germination followed by metal bin while fertilizer bag & earthen-pot showed poorer and poorest germination respectively till one year. Almost all treatments with lower MC showed better results than the treatments with higher MC. A negative correlation (R2=69.7%) was found between EC and Germination. All six figures from 2 to 12 months on MC showed statistically different where hermetic plastic bags were found maintaining MC as initial whereas MC of fertilizer bags and earthen pot was spiked than the basal figure. The finding evidenced that the hermetic containers and low MC are the seed storage approaches for retaining the quality of seed even in an ambient environmental condition for more than a year.


Kultivasi ◽  
2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Sumadi Sumadi ◽  
Anne Nuraini ◽  
Erni Suminar ◽  
Siti Sarah Rubaekah ◽  
Muhamad Alvianto

Abstract. Seed storage is one of the efforts to maintain seed quality until the seed is ready to be planted. Some factors that influence seed quality after the storage period are seed storage pest attack, packaging type and seed charac-teristics of each cultivar. The objectives of the experiment was to determine the combination of dosage of clove oil, packaging type and mung bean cultivar. This research consisted of two series of experiments: to study the effectiveness of a combination of clove oil dosage with cultivars and tested combinations of packaging types with two mung bean cultivars. The first experiment was conducted in January - April and the second in April - June 2017 respectively. The first experiment was to obtain the effect of a combination of clove oil dosages (0,0 ml kg-1, 0,5 ml kg-1, 1,0 ml kg-1, 1,5 ml kg-1 and 2,0 ml kg-1) with two mungbean cultivars (Vima-1 and Vima-2). Furthermore, the second experiment was to examine the types of packaging (jute bag, aluminum foil, paper bag, plastic bag and glass bottle) with cultivar type (Vima-1 and Vima-2) .The quality of the seeds was tested three and six months storage respectively. The first experi-mental results showed that clove oil treatment had no significant effect on the population of Callosobrochus sp after three months storage, percentage of broken seeds, weight of 100 grains and germination capacity. In general, Vima-3 cultivars that combined with dosages of clove oil  gave better quality than  of Vima-1 cultivars. The second experimental results showed that the paper bag packaging type and the jute bag are not able to maintain the seed viability and vigor more than  ≥ 80% of the standard quality. Aluminum foil, plastic seals, and glass bottles are able to maintained the seed quality of both cultivars after a six-month storage period.Keywords: clove oil, types of packaging, Mung bean cultivars, storage Sari. Penyimpanan benih merupakan salah satu upaya menjaga mutu benih sampai benih siap ditanam. Faktor-faktor yang mempengaruhi mutu benih setelah periode simpan, antara lain serangan hama gudang, jenis kemasan dan karakteristik benih tiap kultivar. Tujuan penelitian adalah menentukan kombinasi dosis minyak cengkeh, jenis kemasan yang  paling baik  mempertahankan kualitas benih  kacang hijau.Penelitian  terdiri dari dua seri percobaan, yaitu mengkaji keefektifan kombinasi dosis minyak cengkeh dengan dua kultivar kacang hijau serta mengkaji kombinasi jenis kemasan dengan kultivar kacang hijau. Masing-masing dilaksanakan pada bulan Januari – April serta April – Juni 2017. Percobaan pertama mengkaji pengaruh kombinasi antara dosis minyak cengkeh ( 0,0 ml kg-1, 0,5 ml kg-1, 1,0 ml k-1, 1,5 ml kg-1 dan 2,0 ml kg-1) dengan kultivar ( Vima-1 dan Vima-2). Selanjutnya percobaan ke dua adalah untuk mengkaji  jenis kemasan (kantong terigu, aluminium foil, kantong kertas, kantong plastik dan botol kaca) dengan jenis kultivar (Vima-1 dan Vima-2). Mutu benih  diuji setelah periode simpan masing-masing tiga bulan dan enam bulan. Hasil percobaan pertama menun-jukkan bahwa pemberian minyak cengkeh tidak berpengaruh nyata terhadap populasi Calloso-brochus sp pada penyimpanan benih tiga bulan berkisar antara 10,00 – 25,67 ekor, persentase benih rusak, bobot 100 butir dan daya berkecambah. Secara umum kultivar Vima-2 yang dikombinasikan dengan dosis minyak cengkeh mutunya lebih baik diban-dingkan benih kultivar Vima-1.Hasil percobaan kedua menununjukkan bahwa jenis kemasan amplop kertas dan karung terigu tidak mampu mempertahankan daya berkecambah dan vigor  kedua kultivar ≥ 80 % dari standar. Kemasan aluminum foil, kantong plastik dan botol kaca mampu mempertahankan mutu benih kedua kultivar setelah periode simpan enam bulan.Kata kunci : Minyak cengkeh, jenis kemasan, kultivar kacang hijau, penyimpanan


2021 ◽  
Vol 16 (1) ◽  
pp. 52-58
Author(s):  
Jitendra Kumar S. Hilli ◽  
Rehan Malik ◽  
A.G. Vijayakumar ◽  
Ravi Hunje

Seed coating especially film coating, is one such technique which has gained commercial importance owning to its practical utility as an effective delivery system as seed protectant and fortifying chemicals which maintain good germinability and vigour in field as well as laboratory viz.,strong seedlings grow faster than less vigorous ones, are more tolerant to adverse conditions in the seedbed and are better to resist diseases. Seeds of soybean cv. JS-335 were coated with polymer ((DISCO AG SP RED L-200), protectant (thiram and carboxin), bioagent (Mycorrhiza) and polymer untreated seeds as control. It was observed that, irrespective of the treatments, the seed quality parameters declined progressively with the increase in storage period (12 months). Under field conditions, higher vigour (2348) was noticed in seed treated with polymer (DISCO AG SP RED L-200) + Thiram + Quick roots **/ Mycorrhiza and lower vigour was seen inno polymer treatment or water + thiram. The field emergence (%) revealed that all the three polymer seed coating treatments were on par at 30 DAS (78.07 %, 77.19 % and 77.19 %) and 50 DAS (80.99 %, 80.11 % and 79.56 %) when compared to control treatment i.e., no polymer treatment or water + thiram at 30 DAS (71.68 %) and 50 DAS (71.30 %), respectively. Among the yield attributes, significant difference was observed in seed yield/plant with treatment polymer (DISCO AG SP RED L-200) + Thiram + Quick roots **/ mycorrhiza registering highest (22.20 g) yield, while the lowest (18.40 g) yield was observed in polymer untreated or water + thiram.


Sign in / Sign up

Export Citation Format

Share Document