scholarly journals Pengaruh Bahan Invigorasi dan Lama Perendaman pada Benih Padi Kadaluarsa (Oryza sativa L.) terhadap Viabilitas dan Vigor Benih

2020 ◽  
Vol 4 (1) ◽  
pp. 169-183
Author(s):  
Resti Afdharani ◽  
Hasanuddin Hasanuddin ◽  
Bakhtiar Bakhtiar
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Seed Viability ◽  
Rice Seed ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Rice Seeds ◽  
Unit Unit ◽  
Banda Aceh ◽  
Significant Data

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh bahan invigorasi dan lama perendaman serta interaksi keduanya terhadap viabilitas benih padi kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Juli sampai bulan Agustus 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap (RAL) pola faktorial 4x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur (BNJ) taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah bahan invigorasi dengan 4 jenis bahan yaitu Aquades, PEG, KNO3, dan Air kelapa. Faktor kedua adalah lama perendaman dengan 3 taraf yaitu 12, 24 dan 48 jam. Hasil penelitian menunjukkan bahwa bahan invigorasi terbaik terdapat pada bahan invigorasi menggunakan PEG. Lama perendaman tidak berpengaruh terhadap viabilitas benih padi kadaluarsa. Kombinasi perlakuan terbaik antara bahan invigorasi dan lama perendaman untuk invigorasi benih padi kadaluarsa pada penelitian ini terdapat pada bahan invigorasi menggunakan PEG dan lama perendaman 24 jam.The Effect of Invigorating Material and Soaking Periods on Expired Rice Seeds (Oryza sativa L.) againts Viability and Vigor SeedsAbstract. The purpose of this research was to investigate the effect of invigoration technique and soaking duration and interaction between them on the expired rice seed viability. The research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from July to August 2018. Treatment units were arranged in Factorial Completely Randomized Design (CRD) 4x3 in 3 replications, and the significant data was continued analized by Honestly Significant Different (HSD). The first factor was the invigoration technique that used 4 substance i.e Aquades, PEG, KNO3, and coconut water. While the second factor was duration of soaking i.e 12, 24 and 48 hours. The result showed the best concentration for invigoration was one used PEG, while the duration for soaking was not effect on invigoration. The best combination for invigoration of expired rice seeds on this research was PEG and 24 hours of soaking duration.

scholarly journals Invigorasi benih tomat kadaluarsa dengan ekstrak bawang merah pada berbagai konsentrasi dan lama perendaman

2018 ◽  
Vol 3 (4) ◽  
pp. 175-184
Author(s):  
Rahmat Rivai Lubis ◽  
Trisda Kurniawan ◽  
Zuyasna Zuyasna
Keyword(s):  
Seedling Growth ◽  
Significant Interaction ◽  
Seed Viability ◽  
Tomato Seed ◽  
Onion Extract ◽  
Tomato Seeds ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Unit Unit ◽  
Banda Aceh

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi dan lama perendaman ekstrak bawang merah serta interaksi keduanya terhadap viabilitas benih tomat kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan April sampai Juni 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap pola faktorial 5x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah konsentrasi ekstrak bawang merah dengan 5 taraf yaitu 0, 25, 50, 75 dan 100%, sedangkan faktor kedua adalah lama perendaman dengan 3 taraf yaitu 12, 24 dan 36 jam. Hasil penelitian menunjukkan bahwa konsentrasi ekstrak bawang merah terbaik terdapat pada konsentrasi ekstrak bawang merah 25%. Lama perendaman tidak berpengaruh nyata terhadap tolok ukur pertumbuhan bibit. Tidak terjadi interaksi yang nyata antara konsentrasi ekstrak bawang merah dan lama perendaman terhadap tolok ukur pertumbuhan bibit.Invigoration of Expired Tomato Seeds with Onion Extract at Various Concentrations and Soaking DurationsAbstract. The purpose of this research was to investigate the effect of onion concentration and soaking duration and interaction between them on the expired tomato seed viability. The research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from April to June 2018. Treatment units were arranged according to Factorial Completely Randomized Design 5x3 in 3 replications, and the significant data than continued analized by Honestly Significant Different. The first factor was the concentrations of extract onion i.e 0, 25, 50, 75 and 100%, and the second factor was durations of soaking i.e 12, 24 and 36 hours. The result showed the best concentration for invigoration was 25% of onion extract. Soaking duration does not have a significant effect on seedling growth. There is no significant interaction between the concentration of onion extract and soaking duration on seedling growth.

scholarly journals Uji efektivitas kombinasi pupuk bio-slurry dengan pupuk npk terhadap pertumbuhan dan produksi dua varietas padi sawah (oryza sativa L.)

2018 ◽  
Vol 2 (2) ◽  
pp. 188
Author(s):  
Ahmad Khanafi ◽  
Yafizham Yafizham ◽  
Didik Wisnu Widjajanto
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Production Data ◽  
Single Treatment ◽  
Randomized Design ◽  
Npk Fertilizer ◽  
Completely Randomized Design ◽  
Fertilizer Combination ◽  
Range Test

The objective of this research was to investigate the effectiveness of combination of bio-slurry fertilizer and NPK fertilizer on the growth and production of two varieties of rice. The experiment was assigned in a completely randomized design of factorial pattern. The first factor was the combination of bio-slurry and NPK fertilizer that consisted of P0 = no added fertilizer (control) 0 ton/ha, P1 = NPK fertilizer 550 kg/ha (165 kg N, 33 kg P, 45 kg K); P2 = bio-slurryfertilizer 2.3 tons/ha (45 kg N, 14 kg P, 23 kg K) and NPK fertilizer 400 kg/ha (120 kg N, 24 kg P, 32 kg K); P3 = bio-slurryfertilizer 4.6 tons/ha (90 kg N, 28 kg P, 46 kg K) and NPK fertilizer 250 kg/ha (75 kg N, 15 kg P, 20 kg K); P4 = bio-slurry fertilizer 5.9 tons/ha (115 kg N, 36 kg P, 59 kg K) and NPK fertilizer 100 kg/ha (30 kg N, 6 kg P, 8 kg K); and P5 = bio-slurryfertilizer 8.5 tons/ha (165 kg N, 52 kg P, 85 kg K). The second factor was varieties of rice that consisted of V1 : IR-64 and V2 : Ciherang. Each treatment was repeated three times. Parameters observed were plant height, number of tillers, weight of 1.000 grains, and rice production. Data were analyzed using ANOVA and continued with Duncan’s Multiple Range Test (DMRT). The results showed that the combination of bio-slurry fertilizer and NPK fertilizer were significantlyaffect (p <0.05)all observation parameters, while varieties of wetland rice did not show significant effect on all observation parameters (p<0.05). The application of bio-slurry fertilizer in single treatment or in either combination with NPK fertilizer had the same result with the treatment of NPK fertilizer on the growth and yield of rice. Keywords: rice, fertilizer combination, bio-slurry fertilizer, NPK fertilizer

scholarly journals Development of Liquid Enhancer for Germination of Drought-stressed Oryza sativa subsp. indica Seed cv. MR284

2019 ◽  
pp. 1-9 ◽  
Author(s):  
S. N. Mahadi ◽  
F. Zawawi ◽  
R. Nulit ◽  
M. H. Ibrahim ◽  
N. I. Ab. Ghani
Keyword(s):  
Oryza Sativa ◽  
Seed Germination ◽  
Germination Percentage ◽  
Leaf Length ◽  
Seed Vigor ◽  
Rice Seed ◽  
Combination Treatments ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Selection Of

Aim: This study was conducted to develop liquid enhancer containing KCl, TU, GA, and SA for germination of drought-stressed Oryza sativa subsp. indica cv. MR284 seed. Study Design: All experiments were conducted in a completely randomized design. Two steps were involved in the development process which are to select an ideal concentration for each KCl, TU, GA, and SA, and to find an ideal combination of chemicals from the selection of ideal concentrations acquired in step 1 to form liquid enhancer. There were 20 treatments for step 1 and 9 treatments for step 2. All of these treatments with 6 replicates. Place and Duration of Study: Department of Biology, Faculty of Science, University Putra Malaysia, between June 2018 and December 2018. Methodology: The sterilized rice seed cv. MR284 was stressed in the -1.2 Mpa PEG 6000 solution for three days and germinated in the KCl, TU, GA, and SA solution in a series of concentration for 10 days, in a controlled room. Seed germination was observed daily. Results: In the first step, drought-stressed rice seed showed the best germination performance in the 30 mM of KCl, 2.0 mM of TU, 0.24 mM GA, and 0.5 mM SA. Meanwhile, in the second step, the drought-stressed rice seed showed the best germination performance in the combination of 30 mM KCl + 2.0 mM TU + 0.24 mM GA + 0.5 mM SA. The best germination performance was evaluated by the highest germination percentage (%), germination index, seed vigor, leaf length, root length and biomass. Conclusion: Therefore, the combination treatments of 30 mM KCl + 2.0 mM TU + 0.5 mM SA was found to be the most effective and simplest liquid enhancer formula that has an ability to enhance seed germination of drought-stressed rice cv. MR284 seed.

scholarly journals Biofertilizer Formulation with Bioactivators Bacillus cereus on the Growth and Yeild of Upland Rice (Oryza sativa L.) in Peat Medium

2021 ◽  
Vol 9 (3) ◽  
Author(s):  
Hapsoh ◽  
Wawan ◽  
Isna Rahma Dini ◽  
Devi Andriani
Keyword(s):  
Oryza Sativa ◽  
Bacillus Cereus ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Soil Science ◽  
Science Laboratory ◽  
Rice Husks ◽  
Randomized Design ◽  
Completely Randomized Design

This study aims to test the bio-fertilizer formulation with Bacillus cereus bioactivator and to obtain the best bio-fertilizer formulation for the growth and yield of upland rice (Oryza sativa L.) in peat medium. The research was conducted in the experimental garden and Soil Science Laboratory, Faculty of Agriculture, University of Riau from July to October 2018. The study was carried out experimentally using a completely randomized design (RAL) with the treatment tested was the formulation of Bacillus cereus (F): F0: 100 ml Bacillus cereus without formulation, F1: 100 ml Bacillus cereus inoculant+74% bagasse+13% dolomite+13% zeolite, F2: 100 ml Bacillus cereus inoculant+74% rice husk+13% zeolite+13% dolomite, F3: 100 ml inoculant Bacillus cereus+74% solid+13% dolomite+13% zeolite, F4: 100 ml Bacillus cereus inoculant+74% tkks+13% zeolite+13% dolomite. The data obtained were analyzed statistically using variance fingerprints. The average result of the analysis was continued with the BNJ test at the 5% level. The results showed that administration of Bacillus cereus without formulation and with the formulation of solid organic matter of rice husks, solids and oil palm empty bunches showed a good response to the amount of chlorophyll and yield of upland rice plants.

scholarly journals Effect of Silica Fertilizer to Growth and Yield of Rice (Oryza sativa L.) in Jajar Legowo Method

2021 ◽  
pp. 1-8
Author(s):  
Yulia Sartika ◽  
Auzar Syarif ◽  
Indra Dwipa
Keyword(s):  
Oryza Sativa ◽  
Factorial Design ◽  
Rice Plant ◽  
Rice Field ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Single Factor ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Range Test

Aims: The research aimed to study the interaction between Jajar Legowo method and silica fertilizer doses to growth and yield of rice. Study Design: Factorial design in Completely randomized design Place and Duration of Study: The research was conducted in farmer’s rice field in Linggo Sari Baganti, Pesisir Selatan, West Sumatera, Indonesia from July to Oktober 2020. Methodology: Factorial design with 2 factors in completely randomized design was used in the research. The first factor was Jajar Legowo method that consisted of 3 degrees (2:1, 3:1 dan 4:1) and the second factor was silica fertilizer doses that consisted of 4 degrees (0 ml/L, 5 ml/L, 10 ml/L and 15 ml/L). The data was analysed using F test 5% and continued by Duncan’s New Multiple Range Test (DNMRT) 5% Results: Generally, the interaction between Jajar legowo method and silica fertilizer did not affect the production of rice plant. But, for single factor both jajar legowo method and silica application affected the growth of rice plant Conclusion: The production per hectare of rice plant was lower than description so that this method should be improved to obtain the better result.

scholarly journals Effect of Silicate Fertilizer on the Growth and Yield of Two Local Indonesian Varieties of Rice (Oryza sativa L.)

2021 ◽  
Author(s):  
D.W. Widjajanto ◽  
Sumarsono . ◽  
Endang Dwi Purbajanti
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Growth And Yield ◽  
Rice Varieties ◽  
Growing Period ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Beneficial Elements

Background: The beneficial elements availability such as silicon was determined rice growth and yield. Rice requires a different dose of silicon during the growing period. Experiment was aimed to investigate the effect of silicate levels, rice varieties and the interaction of the two on the growth and yields of two local Indonesian varieties of rice. Methods: A completely randomized design of factorial pattern with 4 replications was used in the experiment. Treatments consisted of No added SiO2 (Si-0); added 100 and 200 kg SiO2 ha-1, respectively for Si-100 and Si-200 and two local rice varieties, Pandan wangi (P1) and Mentik susu (P2). Result: The treatment had no significant effect on growth and yield of rice. Addition of 100 and 200 kg SiO2 ha-1 to P1 and P2 did not show a significant difference on the growth and yield of rice compared to control (P0). Plant height and root dry weight at P1 was lower than P2, but the 1,000-grain weight was showed, vice versa. Silicon addition up to 200 kg SiO2 ha-1 may not be recommended to be applied in rice cultivation, especially Pandan wangi and Mentik susu varieties. Improving the two varieties, further research is needed by increasing the silicon doses. 

scholarly journals Pengaruh konsentrasi auksin dalam hydropriming benih cabai yang berbeda tingkat kadaluarsa terhadap viabilitas benih

2018 ◽  
Vol 3 (4) ◽  
pp. 159-167
Author(s):  
Belangie Tuahte Gundala ◽  
Trisda Kurniawan ◽  
Halimursyadah Halimursyadah
Keyword(s):  
Seed Viability ◽  
Maximum Growth ◽  
Test Method ◽  
Growth Potential ◽  
Paper Test ◽  
Randomized Design ◽  
Vigor Index ◽  
Treated Seed ◽  
Unit Unit ◽  
Banda Aceh

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan konsentrasi auksin dalam hydropriming dan tingkat kadaluarsa serta interaksi keduanya terhadap viabilitas benih cabai kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Maret sampai Juni 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap pola faktorial 4x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah perendaman dalam larutan auksin dengan konsentrasi : 0, 2, 4, dan 6 g L-1 dan faktor kedua adalah tingkat kadaluarsa dengan 3 taraf yaitu 4, 8 dan 12 bulan. Benih yang telah diperlakukan dikecambahkan dengan metode Uji Diatas Kertas. Hasil penelitian menunjukkan bahwa perlakuan konsentrasi auksin berpengaruh sangat nyata terhadap tolok ukur potensi tumbuh maksimum, indeks vigor dan kecepatan tumbuh relatif, berpengaruh nyata pada tolok ukur daya berkecambah dan keserempakan tumbuh. Tingkat Kadaluarsa berpengaruh sangat nyata terhadap tolok ukur potensi tumbuh maksimum dan daya berkecambah. Perlakuan konsentrasi auksin  2 g L-1 dengan tingkat kadaluarsa 4 bulan merupakan kombinasi perlakuan terbaik berdasarkan tolok ukur potensi tumbuh maksimum (97,33%).The Effect of Auxin Concentrations in Hydropriming and Levels of Expired Chilli Seed to Seed ViabilityAbstract. The purposes of this research were to know the effect of auxin concentrations in hydropriming and levels of seed expired and interaction between them to chilli seed viability. This research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from March to June 2018. Research units were arranged based on factorial Completely Randomized Design 4x3 with 3 replicates, continued with Honesty Significant Different on significant F-test results. The first factor was immersion in auxin solution with concentration: 0, 2, 4, and 6 g L-1 and the second factor was expired level with 3 levels 4, 8 and 12 months. Treated seed were planted on paper test method and in trays added with soil. The results showed that the auxin concentration treatment had a very significant effect on the maximum growth potential, vigor index and relative growth rate, significant effect on germination power and The expiration rate had a very significant effect on the maximum growth potential and germination power. Treatment of 2 g L-1 auksin concentration with 4 month expiration rate was the best treatment combination based on maximum growth potential (97,33%).

scholarly journals KETERSEDIAAN P, SERAPAN P DAN SI OLEH TANAMAN PADI GOGO (Oryza sativa. L) PADA LAHAN ULTISOL YANG DIAPLIKASIKAN SILIKAT DAN PUPUK FOSFAT

2018 ◽  
Vol 8 (2) ◽  
pp. 9 ◽  
Author(s):  
Zulputra Zulputra ◽  
Nelvia Nelvia
Keyword(s):  
Oryza Sativa ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Phosphate Fertilizer ◽  
Rice Crop ◽  
Rice Plants ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Four Levels

The research was conducted from  August 2014 to Januari 2015 in the Ultisol Land, Pematang Berangan Village, Rokan Hulu Regency, Riau Province. The study aims to determine the availability of P, P and Si uptake by upland rice plants granting silicate and phosphate fertilizer on Ultisol land. The form of this research is experimental factorial completely randomized design consist of two factors. The first factor is silicate consists of four levels (0, 50, 75, and 100 kg SiO2/ha), while the second factor is phosphate fertilizer consists of four levels (0, 36, 54, and 72 kg P2O5/ha), each combination was repeated three times. The results showed that administration of silicates and phosphates increase the availability of P, P and Si uptake of upland rice crop. Giving of 100 kg SiO2 and 36 kg P2O5 per hectare increase  uptake of P and Si, each respectively increased by 208 % and 218 % compared without silicates and phosphates fertilizer.

scholarly journals PENGARUH PUPUK ORGANIK CAIR UNITAS SUPER ASAL Chromolaena Odorata TERHADAP PERTUMBUHAN DAN HASIL PADI HITAM (Oryza sativa L.)

2018 ◽  
Vol 8 (2) ◽  
pp. 15 ◽  
Author(s):  
Jamilah Munir ◽  
Beben Kurniawan ◽  
Zahanis Zahanis
Keyword(s):  
Oryza Sativa ◽  
Harvest Index ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Panicle Length ◽  
Chromolaena Odorata ◽  
Black Rice ◽  
Urban Village ◽  
Randomized Design ◽  
Completely Randomized Design

The aim of this research was to know the influence of concentration and interval of Liquid organic manure (LOM) Unitas Super  (US) form Chromolaena odorata on growth and yield of black rice (Oryza sativa L.). The experiment was conducted from October 2016 to March 2017 in Lubuk Minturun Urban Village, Koto Tangah Sub-district, Padang. The experiments were arranged in Completely Randomized Design, with 6 doses of POC Unitas Super (US) (v/v) with water, ie; 0 ml L-1 (F1); 50 ml L-1, 1 time a week (F2), 50 ml L-1, 1 time 2 weeks (F3), 100 ml L-1, a weekly (F4), 100 ml L-1, 1 time every 2 weeks (F5); 150 ml L-1 POC US, 1 time every 3 weeks (F6), and 3 replications. The data obtained were analyzed using analysis of variance (ANOVA) 5% real level. If the treatment had a significant effect, it was continued with LSD test of 5% real level. Parameters observed include; Plant height, the maximum number of tillers and productive, flowering age, harvest, panicle length, the number of grains per panicle, weight of 1000 seeds, the weight of dry grain per hectare, percentage of empty grain and harvest index. The experimental results proved that there was an influence of LOM Unitas Super treatments on maximum tillers, empty grain, panicle length and dry grain harvest, and some other parameters were not significance. The conclusion was the giving of 50 ml L-1 POC Unitas Super given every week is the best treatment. The highest rice yield reached 6.79 tons ha-1 dry milled grain, with harvest index reached 0.49.  

scholarly journals RELAÇÃO ENTRE CONDUTIVIDADE ELÉTRICA E DESEMPENHO FISIOLÓGIO DE SEMENTES DE ARROZ

Nativa ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 182-193
Author(s):  
Carla Aparecida Ascoli ◽  
Andréa Carvalho da Silva
Keyword(s):  
Electrical Conductivity ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Seed Vigor ◽  
Physiological Performance ◽  
Best Response ◽  
Randomized Design ◽  
Physiological Quality ◽  
Rice Seeds ◽  
Para Determinar

Estudando genótipos de arroz (Oryza sativa L.), ANa 8001, 9005 CL e 9027, determinou-se o potencial fisiológico das sementes, sendo o mesmo correlacionado com índices de condutividade elétrica. O experimento foi conduzido nas safras 2017/18 em Sinop-MT, na determinação dos índices de condutividade elétrica foram avaliados dois fatores de luminosidade e 9 períodos de embebição. Adotou-se o delineamento inteiramente casualizado com comparação de médias pelo Teste de Tukey (5%), quando necessário, os dados foram transformados por raiz quadrada. Os resultados destacaram a cultivar ANa 9027 com o pior desempenho fisiológico, vigor de 69%, e para as demais cultivares ANa 8001 (79,54%) e ANa 9005 CL (84,41%). O teor de água absorvido pelas sementes do início do processo de hidratação até o final, é afetada pela qualidade fisiológica, sementes menos vigorosas apresentam menor velocidade de hidratação e umidade final. Constatou-se também, que o teste de condutividade elétrica é eficiente para determinar a viabilidade de sementes de arroz e a melhor resposta foi obtida na ausência de luz, além disso é possível a redução do período de imersão para 8 h com o intuito de diferenciar o potencial fisiológico das sementes de arroz acima de 80% de vigor, daquelas abaixo desse padrão. Palavras-chave: qualidade fisiológica; Oryza sativa; vigor de sementes; germinação.   Relationship between electrical conductivity and physiological performance of rice seeds   ABSTRACT: Studying genotypes of rice (Oryza sativa L.), ANa 8001, 9005 CL and 9027, the physiological potential of the seeds was determined, being the same correlated with electrical conductivity indices. The experiment was conducted in the 2017/18 harvests in Sinop-MT, in determining the electrical conductivity indices, two luminosity factors and 9 imbibition periods were evaluated. It was adopted a completely randomized design with comparison of means by the Tukey test (5%), when necessary, the data were transformed by square root. The results highlighted the cultivar ANa 9027 with the worst physiological performance, 69% vigor, and for the other cultivars ANa 8001 (79.54%) and ANa 9005 CL (84.41%). The water content absorbed by the seeds from the beginning of the hydration process to the end, is affected by the physiological quality, less vigorous seeds have a lower rate of hydration and final moisture. It was also found that the electrical conductivity test is efficient to determine the viability of rice seeds and the best response was obtained in the absence of light, in addition it is possible to reduce the immersion period to 8 h in order to differentiate the physiological potential of rice seeds above 80% vigor, those below this standard. Keywords: physiological quality; Oryza sativa; seed vigor; germination.

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