PENGARUH UMUR MASAK POLONG TERHADAP VIABILITAS DAN VIGOR BENIH BEBERAPA AKSESI BENGKUANG (Pachyrhizus erosus)

2018 ◽  
Vol 17 (3) ◽  
Author(s):  
Ayda Krisnawati ◽  
M Muchlish Adie
Keyword(s):  
Developmental Stages ◽  
Practical Implication ◽  
Germination Rate ◽  
Dry Weight ◽  
Maximum Growth ◽  
Leaf Length ◽  
Growth Potential ◽  
Research Station ◽  
Full Size ◽  
Pachyrhizus Erosus

Seed germination uniformity and simultaneity of yam bean was related to pod maturity. A total of ten accessions of yam bean was planted at Kendalpayak Research Station, Malang (Indonesia) from May to October 2016. Yam bean pods of each accession were harvested at three developmental stages, i.e. full-size green pods, yellow pods, and brown/black pods. The experiment was conducted using a completely randomized factorial design with three replications. The first factor was pod maturity and the second factor was yam bean accessions. Significant interactions between pod maturities with accessions were found on characters of epicotyl length, leaf length, leaf width, root dry weight, maximum growth potential, and germination rate at the 10th days of observation. The pod maturity at yellow stage gave the highest maximum growth potential and germination rate. The average germination rate of yellow pods was 8.15% per day which was, higher than those of green pods (3.83% per day) as well as black pods (3.73% per day). These yellow pods have optimal germination growth of compared to those of green as well as black pods. The practical implication of this research is the use of yellow pods as recommended seed source for yam bean cultivation. 

scholarly journals Harvesting Criteria and Drying Methods to Improve the Quality of Foxtail Millet Seeds (Setaria italica L. Beauv.)

2021 ◽  
Vol 8 (03) ◽  
pp. 168-176
Author(s):  
Putri Aulia Lainufar ◽  
Abdul Qadir ◽  
M. Rahmad Suhartanto ◽  
Sintho Wahyuning Ardie
Keyword(s):  
Seed Quality ◽  
Germination Rate ◽  
Foxtail Millet ◽  
Seed Viability ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Growth Speed ◽  
Vigor Index

Foxtail millet is annual grasses with grains that are smaller than those of sorghum, rice, and wheat, and is considered one of the minor economic crops but with nutritional values similar to other major food crops. The development of millet as major cereal crop is considered challenging due to the low quality of its seeds, and studies have been conducted to improve millet’s seed quality. We conducted this study to determine the harvesting criteria of foxtail millet seeds based on the change in color of the panicles. We also wanted to determine the drying treatment, and evaluate the relationship between the position of the seed on the panicles and the seed viability and vigor. The first experiment was arranged based on a completely randomized design with panicle color as the first factor (green, yellow 75%, and brown) and drying time as the second factor (0 hours, 24 hours, 48 hours, 72 hours). The second experiment was arranged in a completely randomized design with seed position as the main factor (base, middle, tip). The study was conducted on two genotypes of millet, i.e. “BOTOK 4” and “BOTOK 10”. The highest seed quality of “BOTOK 4” and “BOTOK 10” genotypes were obtained when the panicles were brown and dried for 72 hours; the seed chlorophyll content was the lowest and water content was 8.88%, with the highest viability and vigor, i.e., germination rate of 88.3%-90%, maximum growth potential of 92%-95.3%, normal sprout dry weight 596-620 mg, vigor index of 33.6% - 21.6%, and growth rate of 18.2%-17.1% etmal-1. The highest seed viability and vigor in “BOTOK 4” genotypes were obtained from the base position, i.e., 78.7% germination rate, maximum growth potential of 83.7%, vigor index of 56.5%, growth speed of 19.6 etmal-1, normal sprout dry weight of 48 mg, radicle length of 3.3 cm) and “BOTOK 10” genotypes from the middle position with 91.5% germination, maximum growth potential of 97.2%, vigor index  of 21.7%, growth speed of 17.0% etmal-1, and normal sprout dry weight 61 mg.

scholarly journals Physiological and biochemical changes in cocoa seed (Theobroma cacao L.) caused by desiccation Perubahan fisiologi dan biokimia benih kakao (Theobroma cacao L.) akibat desikasi

2016 ◽  
Vol 68 (1) ◽  
Author(s):  
Nurita TORUAN-MATHIUS ◽  
. RACHMAWATI-HASID ◽  
. NURHAIMI-HARIS ◽  
Tolhas HUTABARAT
Keyword(s):  
Seed Germination ◽  
Water Content ◽  
Theobroma Cacao ◽  
Germination Rate ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Normal Seedling ◽  
Theobroma Cacao L ◽  
Physiological And Biochemical

 Ringkasan Benih kakao tergolong rekalsitran, benihnya sensitif terhadap desikasi dan apabila disimpan pada kondisi yang menyebabkan kehilangan air, benih akan kehilangan viabilitasnya. Viabilitas benih kakao hanya dapat dipertahankan beberapa hari saja dalam keadaan terbuka pada suhu kamar. Hal ini merupakan kendala dalam penyimpanan dan pengiriman benih kakao. Tujuan penelitian ini adalah untuk menetapkan pengaruh desikasi terhadap karakter fisiologis dan biokimia benih kakao. Benih ICS 60 (kakao lindak) dan DR2 (kakao mulia) diletakkan dalam cawan Petri kemudian disimpan pada suhu 25oC dan Rh 55-75% selama empat hari. Percobaan dilakukan dengan rancang­an petak terpisah, petak utama adalah kandungan air awal dan kritikal. Sebagai anak petak adalah jenis kakao, masing-masing diulang empat kali. Peubah fisiologis yang diukur adalah viabilitas benih mencakup kandungan air benih, potensi tumbuh maksimum, daya berkecambah, kecepatan tumbuh, bobot kering kecambah normal, dan laju pertumbuhan kecambah normal. Di samping itu juga dilakukan pengamatan pola pita protein benih yang dianalisis dengan SDS-PAGE. Kandungan asam absisik (ABA) dan gula stahiosa, raftnosa, glukosa, fruktosa, arabinosa, silosa, serta sukrosa dalam benih yang ditetapkan dengan HPLC Integritas membran benih ditetapkan berdasarkan daya hantar listrik air perendaman benih yang diukur dengan konduktometer. Hasil yang diperoleh menunjukkan bahwa adanya interaksi yang nyata antara desikasi dengan seluruh tolok ukur fisiologis. Desikasi menyebabkan penurunan daya ber­kecambah, bobot kering dan laju pertumbuhan kecambah normal, potensi tumbuh maksimum dan kecepatan tumbuh. Sedang untuk, kandungan ABA, sukrosa, arabinosa dan rafinosa mengalami peningkatan. Di samping itu desikasi menyebabkan dibentuknya protein baru dengan BM 32,5; 47,0 dan 51,0 kDa (DR2); 47,0 dan 51,0 kD (ICS 60). Beberapa protein yang hilang oleh pengaruh desikasi yaitu dengan BM37, 0 (DR2), 19, 0 dan 37, 0 kD (ICS60). Benih ICS60 lebih tahan terhadap desikasi dibandingkan dengan benih DR2. Summary Seed of cocoa is recalcitrant and sensitive to desiccation. In open condition at room temperature, the viability of cocoa seed ultimately lost for several days. These characters are a problem for seed storage and delivery. The objectives of this study are to investigate the effect of desiccation on physi­ological and biochemical characters of cocoa seed. Seeds of ICS 60 (bulk cocoa) and DR2 (fine cocoa) were placed on Petri dishes and stored at 25oC, Rh 55-75% for four days (critical water content). The experiment was conducted with split plot analysis, (1) The main plot was the storage condition initial and critical seeds water content. (2) The sub plot was the variety of cocoa, with four replications of each treatment. The effect of desiccation on seeds viability was tested, based on seed water content, maximum growth potential, seed germination, germination rate, dry weight of normal seedling, and seedling growth rate. Besides, the changes of seed proteins band pattern were also analysed by SDS­PAGE. Abscisic acid, stachyose, raffnose, fructose, arabinose, xyllose, and sucrose seed content were determined by HPLC. The integrity of seed membrane based on the leakage of electrolytes from seeds was measured with a CM 100 multicell conductivity meter. The results showed that there is an interaction with highly significant correlation between desiccation and all of the physiological and biochemical parameters. Desiccation caused the decrease of seed germination, dry weight and growth rate'of normal seedling, maximum growth potential, and germination rate and while the leakage of electrolytes, ABA, sucrose, arabinose and raffinose increased. Besides, desiccation was also caused the formation of new proteins with MW 32.5, 47,0 and 51,0 kDa (DR2); 47,0 and 51,0 kD ICS 60) . On the other hand, several protein were disappeared i.e. MW 37,0 (DR2), 19,0 and 37,0 kD (ICS60). Seeds of ICS 60 are more tolerant to desiccation than seeds of DR2. 

scholarly journals Physiological and biochemical changes in cocoa seed (Theobroma cacao L.) caused by desiccation Perubahan fisiologi dan biokimia benih kakao (Theobroma cacao L.) akibat desikasi

2016 ◽  
Vol 68 (1) ◽  
Author(s):  
Nurita TORUAN-MATHIUS ◽  
. RACHMAWATI-HASID ◽  
. NURHAIMI-HARIS ◽  
Tolhas HUTABARAT
Keyword(s):  
Seed Germination ◽  
Water Content ◽  
Theobroma Cacao ◽  
Germination Rate ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Normal Seedling ◽  
Theobroma Cacao L ◽  
Physiological And Biochemical

 Ringkasan Benih kakao tergolong rekalsitran, benihnya sensitif terhadap desikasi dan apabila disimpan pada kondisi yang menyebabkan kehilangan air, benih akan kehilangan viabilitasnya. Viabilitas benih kakao hanya dapat dipertahankan beberapa hari saja dalam keadaan terbuka pada suhu kamar. Hal ini merupakan kendala dalam penyimpanan dan pengiriman benih kakao. Tujuan penelitian ini adalah untuk menetapkan pengaruh desikasi terhadap karakter fisiologis dan biokimia benih kakao. Benih ICS 60 (kakao lindak) dan DR2 (kakao mulia) diletakkan dalam cawan Petri kemudian disimpan pada suhu 25oC dan Rh 55-75% selama empat hari. Percobaan dilakukan dengan rancang­an petak terpisah, petak utama adalah kandungan air awal dan kritikal. Sebagai anak petak adalah jenis kakao, masing-masing diulang empat kali. Peubah fisiologis yang diukur adalah viabilitas benih mencakup kandungan air benih, potensi tumbuh maksimum, daya berkecambah, kecepatan tumbuh, bobot kering kecambah normal, dan laju pertumbuhan kecambah normal. Di samping itu juga dilakukan pengamatan pola pita protein benih yang dianalisis dengan SDS-PAGE. Kandungan asam absisik (ABA) dan gula stahiosa, raftnosa, glukosa, fruktosa, arabinosa, silosa, serta sukrosa dalam benih yang ditetapkan dengan HPLC Integritas membran benih ditetapkan berdasarkan daya hantar listrik air perendaman benih yang diukur dengan konduktometer. Hasil yang diperoleh menunjukkan bahwa adanya interaksi yang nyata antara desikasi dengan seluruh tolok ukur fisiologis. Desikasi menyebabkan penurunan daya ber­kecambah, bobot kering dan laju pertumbuhan kecambah normal, potensi tumbuh maksimum dan kecepatan tumbuh. Sedang untuk, kandungan ABA, sukrosa, arabinosa dan rafinosa mengalami peningkatan. Di samping itu desikasi menyebabkan dibentuknya protein baru dengan BM 32,5; 47,0 dan 51,0 kDa (DR2); 47,0 dan 51,0 kD (ICS 60). Beberapa protein yang hilang oleh pengaruh desikasi yaitu dengan BM37, 0 (DR2), 19, 0 dan 37, 0 kD (ICS60). Benih ICS60 lebih tahan terhadap desikasi dibandingkan dengan benih DR2. Summary Seed of cocoa is recalcitrant and sensitive to desiccation. In open condition at room temperature, the viability of cocoa seed ultimately lost for several days. These characters are a problem for seed storage and delivery. The objectives of this study are to investigate the effect of desiccation on physi­ological and biochemical characters of cocoa seed. Seeds of ICS 60 (bulk cocoa) and DR2 (fine cocoa) were placed on Petri dishes and stored at 25oC, Rh 55-75% for four days (critical water content). The experiment was conducted with split plot analysis, (1) The main plot was the storage condition initial and critical seeds water content. (2) The sub plot was the variety of cocoa, with four replications of each treatment. The effect of desiccation on seeds viability was tested, based on seed water content, maximum growth potential, seed germination, germination rate, dry weight of normal seedling, and seedling growth rate. Besides, the changes of seed proteins band pattern were also analysed by SDS­PAGE. Abscisic acid, stachyose, raffnose, fructose, arabinose, xyllose, and sucrose seed content were determined by HPLC. The integrity of seed membrane based on the leakage of electrolytes from seeds was measured with a CM 100 multicell conductivity meter. The results showed that there is an interaction with highly significant correlation between desiccation and all of the physiological and biochemical parameters. Desiccation caused the decrease of seed germination, dry weight and growth rate'of normal seedling, maximum growth potential, and germination rate and while the leakage of electrolytes, ABA, sucrose, arabinose and raffinose increased. Besides, desiccation was also caused the formation of new proteins with MW 32.5, 47,0 and 51,0 kDa (DR2); 47,0 and 51,0 kD ICS 60) . On the other hand, several protein were disappeared i.e. MW 37,0 (DR2), 19,0 and 37,0 kD (ICS60). Seeds of ICS 60 are more tolerant to desiccation than seeds of DR2. 

scholarly journals PEMATAHAN DORMANSI BENIH KELAPA SAWIT (Elaeis guinensis Jacq.) MENGGUNAKAN KALIUM NITRAT (KNO3) DAN AIR KELAPA

AgriPeat ◽  
2021 ◽  
Vol 22 (01) ◽  
pp. 1-10
Author(s):  
Kaliamsyah Sinaga ◽  
Chotimah Hastin Ernawati Nur CC ◽  
Yusurum Jagau
Keyword(s):  
Seed Germination ◽  
Oil Palm ◽  
Germination Rate ◽  
Water Immersion ◽  
Water Concentration ◽  
Maximum Growth ◽  
Growth Potential ◽  
Coconut Water ◽  
Growth Speed ◽  
Randomized Design

The aim of this study were, 1) to find out and study the effect of KNO3 immersion treatment on oil palm seed germination; 2) to find out and study the effect of coconut water immersion treatment on oil palm seed germination; 3) to find out and study the interactions that occur between KNO3 immersion treatment and coconut water to oil palm seed germination. This research was conducted in July 2019 until August 2019 in the Laboratory of the Department of Agriculture Cultivation, Faculty of Agriculture, Palangka Raya University using a Completely Randomized Design with 2 factors. The first factor is the concentration of KNO3: K0 (0%); K1 (0.2%); K2 (0.4%); K3 (0.6%) and the second factor is coconut water concentration, B0 (0%); B1 (60%); B2 (80%); B3 (100%). The parameters observed were first count germination, maximum growth potential, germination power, growth speed, radicle length, plumular length and dormancy intensity. The results showed that the treatment of KNO3 concentration significantly affected first count germination, maximum growth potential, germination rate, growth speed and dormancy intensity. Treatment of coconut water concentration significantly affected first count germination, maximum growth potential, germination rate, growth speed and dormancy intensity. The interaction between the treatment of KNO3 concentration and coconut water concentration had no significant effect on all observed parameters

scholarly journals Ranunculus constantinopolitanus Bitkisinin Bazı Bitkisel Özellikleri, Besleme Değeri ve Tohumlarına Ait Çimlenme Oranlarının Belirlenmesi

2020 ◽  
Vol 8 (7) ◽  
pp. 1553-1558
Author(s):  
Erdal Çaçan ◽  
İhsan Arslan
Keyword(s):  
Nutritive Value ◽  
Germination Rate ◽  
Dry Weight ◽  
Leaf Length ◽  
Toxic Substances ◽  
City Center ◽  
Protein Ratio ◽  
Plant Seeds ◽  
Number Of Leaves ◽  
Plant Characteristics

This study was carried out to determine the plant characteristics, nutritive value and seed germination rate of the Ranunculus constantinopolitanus plant, which is found intensely in meadow-pasture areas and can have toxic effects on animals when consumed. The plant material of this study consists of 50 Ranunculus constantinopolitanus plants collected by random sampling method from the meadow area in Çayağzı village located in Bingöl city center in 2018. Plant length of Ranunculus constantinopolitanus 39-70 cm, stem diameter 1.83-5.53 mm, number of flowers in the plant 3-17, number of leaves in the plant 4-10, leaf length 3-7 cm, leaf width 4-8 cm, plant dry weight 0.75-3.33 grams, stalk ratio in plant 35.1-86.5%, leaf ratio in plant 3.9-42.7%, flower ratio in plant 4.0-43.4%, number of fruit in plant 4.0-11.0, number of achene in fruit 18.0-36.0, number of achene per plant 26-180 and thousand seed weight of achene varied between 4.31-5.03 grams. The dry matter ratio of Ranunculus constantinopolitanus 90.5-90.6%, crude protein ratio 13.1-13.4%, ADF ratio 34.9-35.9%, NDF ratio 47.3-48.9%, ADP ratio 0.33-0.37%, Ca ratio 1.16-1.22%, Mg ratio 0.37-0.38%, P ratio 0.26-0.27% and K ratio varied between 0.94-0.97%. As a result of the germination test with plant seeds, it was determined that 87 seeds germinate at the end of the 21st day, and the total germination rate was 21.8%. Detection of toxic substances and other nutrients contained in this plant with future studies will provide better recognition of this plant.

scholarly journals PENGARUH PERLAKUAN SUHU DAN BEBERAPA GENOTIPE TERHADAP VIABILITAS DAN VIGOR BENIH KUBIS BUNGA (BRASSICA OLERACEA VAR. BOTRYTIS L.) PADA DATARAN RENDAH

MEDIAGRO ◽  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Lestari Maulana ◽  
Elia Azizah ◽  
Winda Rianti ◽  
Sugiarto Sugiarto
Keyword(s):  
Room Temperature ◽  
Dry Weight ◽  
Maximum Growth ◽  
Temperature Treatment ◽  
Growth Potential ◽  
F1 Hybrid ◽  
Randomized Design ◽  
Vigor Index ◽  
Before And After ◽  
Refrigerator Temperature

The aim of this study was to obtain the best temperature on several genotypes so as to increase the best viability and vigour of cauliflower seeds in the lowlands. The research was conducted at the Laboratory Agronomy, OPT and Soil Biotechnology Faculty of Agriculture, Singaperbangsa Karawang University. The research method used was an experimental method with a two-factor completely randomized design (CRD). The first factor is temperature which consists of room temperature without air conditioning (P0), air-conditioned room temperature (P1) and refrigerator temperature (P2). The second factor is genotypes consisting of Viola (B1), Tegar 45 (B2), Snow Waltz (B3), Jayanti (B4), Giga (B5), Snow White (B6), Diamond (B7), Orient (B8). , Roo So 45 (B9), Forum (B10), Bima (B11), F1 Hybrid (B12) and Arjuna (B13). Each treatment was repeated 2 times so that 78 experiments were obtained and 2 times planting (before and after storage). The results of the pre-storage experiment showed that there was no interaction between temperature treatment and several genotypes, but in the post-storage experiment, there were an interaction with the parameters of germination, concurrency of growth, vigor index and maximum growth potential, while for parameters of moisture content, normal germinated dry weight and length of sprouts. indicates there is no interaction. The best treatment was room temperature without AC genotype Roo So 45 (P0B9). Keywords: Cabbage flower, genotype, temperature, , viability, vigour.

scholarly journals Penggunaan kalium nitrat dalam pematahan dormansi fisiologis setelah pematangan pada beberapa galur padi mutan organik spesifik lokal Aceh

Kultivasi ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 1061
Author(s):  
Halimursyadah Halimursyadah ◽  
Syamsuddin Syamsuddin ◽  
Hasanuddin Hasanuddin ◽  
Efendi Efendi ◽  
Najwa Anjani
Keyword(s):  
Significant Interaction ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Growth Speed ◽  
Relative Growth ◽  
Significance Level ◽  
Randomized Design ◽  
Two Factors ◽  
Vigour Index

Sari. Induksi mutasi radiasi merupakan metode efektif untuk meningkatkan keragaman tanaman.  Kajian akan sifat-sifat yang dibawa oleh generasi galur padi hasil mutasi penting untuk dipelajari. Penelitian ini bertujuan untuk mengetahui pengaruh radiasi sinar gamma terhadap sifat dormansi fisiologis after ripening pada galur padi mutan organik dan mengetahui keefektifan penggunaan konsentrasi KNO3 terhadap upaya pematahan dormansinya. Penelitian dilaksanakan di Laboratorium Ilmu dan Teknologi Benih, Fakultas Pertanian, Universitas Syiah Kuala. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial dengan dua faktor serta menggunakan uji lanjut Tukey pada taraf nyata 5%.  Faktor pertama adalah galur padi mutan organik terdiri 5 taraf yaitu G0 = tanpa radiasi (Sanbei Simeleu) sebagai pembanding, G1= Sultan Unsrat, G2= 39e, G3= 75d, G4=57e. Faktor kedua adalah  konsentrasi KNO3 terdiri 3 taraf yaitu K0 = 0%, K1 = 1%, dan K2 = 2%. Parameter yang diamati adalah potensi tumbuh maksimum, daya berkecambah, indeks vigor, keserempakan tumbuh, kecepatan tumbuh relatif, berat kering kecambah normal, dan persistensi dormansi. Hasil penelitian menunjukkan bahwa galur padi mutan organik berpengaruh sangat nyata terhadap berat kering kecambah normal dan berpengaruh nyata terhadap potensi tumbuh maksimum. Konsentrasi KNO3 berpengaruh sangat nyata terhadap daya berkecambah dan berat kering kecambah normal, serta berpengaruh nyata terhadap potensi tumbuh maksimum dan kecepatan tumbuh relatif. Terdapat interaksi sangat nyata antara galur padi mutan organik dan konsentrasi KNO3 terhadap berat kering kecambah normal, dan interaksi nyata terhadappotensi tumbuh maksimum, dan daya berkecambah.  Kombinasi terbaik dijumpai pada galur padi mutan organik 57e dan konsentrasi KNO3 2%.Kata kunci: Setelah pematangan ∙ Dormansi ∙ Galur mutan ∙ KNO3 ∙ Padi Abstract. This study aims to determine the effect of gamma radiation on the physiological dormancy after-ripening of organic mutant rice lines and the effectiveness using KNO3 concentrations on efforts to break dormancy. The study was conducted at the Seed Science and Technology Laboratory, Syiah Kuala University. This research used a completely randomized design (CRD) with two factors and Tukey test at significance level of 5%. The first factor was the organic mutant rice lines that consisted of 5 levels. There were G0 = without radiation (Sanbei Simeleu) as a comparison, G1 = Sultan Unsrat, G2 = 39e, G3 = 75d, and G4 = 57e. The second factor was KNO3 concentration, that consisted of 3 levels. There were K0 = 0%, K1 = 1%, and K2 = 2%. The observed parameters were dormancy persistence, maximum growth potential, germination, vigour index, the simultaneity of growth, relative growth speed, and normal germination dry weight,. The results showed that the organic mutant rice lines had a very significant effect on the dry weight of normal sprouts and had a significant effect on maximum growth potential. KNO3 concentration has a very significant effect on germination and dry weight of normal sprouts and has a significant effect on the maximum growth potential and relative growth speed. There was a highly significant interaction between organic mutant rice lines and KNO3 concentration on the normal dry weight of the sprouts, and significant interaction with maximum growth potential and germination. The best interaction was found in organic mutant rice lines 57e and KNO3 concentration of 2%.Keywords: After ripening ∙ Dormancy ∙ KNO3 ∙ Mutantline ∙ Rice

scholarly journals Vigor Testing of 15 Lots of Soybean (Glycine max L.) Seeds Stored for 12 Months at Low Temperatures

2020 ◽  
Vol 11 (1) ◽  
pp. 35-42
Author(s):  
Desi Rizki Amelia ◽  
Yayuk Nurmiaty ◽  
Niar Nurmauli ◽  
Agustiansyah Agustiansyah ◽  
Ermawati Ermawati
Keyword(s):  
Glycine Max ◽  
Dry Weight ◽  
Maximum Growth ◽  
Mean Value ◽  
Seed Vigor ◽  
Growth Potential ◽  
Vigor Index ◽  
Glycine Max L ◽  
The Mean ◽  
The One

The purpose of this study was to determine the vigor growth strength of Anjasmoro, Grobogan, and Burangrang seed varieties based on three doses categories of SP-36 fertilizer stored for 12 months. The treatment was done separately by separating 15 seed lots. The mean value was determined using the Orthogonal contrast test. The results showed that the large-seeded soybean varieties (Grobogan and Burangrang) had higher seed vigor compared to the small-seeded soybean varieties (Anjasmoro) based on the variables of the germination speed, vigor index, normal dry weight, germination growth, and maximum growth potential. The Grobogan variety produced higher seed vigor than Burangrang variety based on vigor index and germination. Anjasmoro and Grobogan varieties without fertilization produced a lower vigor compared to the one with recommended fertilizer doses (100 and 150 kg/ha) and above the recommended fertilizer doses (200 and 250 kg/ha) based on the rate of germination growth and the vigor index. Grobogan variety with recommended fertilizer dose (100 kg/ha) had the highest seed vigor compared to other varieties. Pengujian Vigor 15 Lot Benih Kedelai (Glycine Max L.) Yang Disimpan 12 Bulan Pada Suhu RendahABSTRAK: Tujuan penelitian ini untuk Mengetahui vigor kekuatan tumbuh benih kombinasi Varietas Anjasmoro, Grobogan, dan Burangrang pada tiga kategori dosis pupuk SP-36 yang telah disimpan 12 bulan. Rancangan perlakuan disusun secara tunggal yaitu 15 lot benih dan pemisahan nilai tengah menggunakan uji Orthogonal contrass. Hasil penelitian menunjukan varietas kedelai berbiji besar (Grobogan dan burangrang) lebih tinggi vigor benihnya dari varietas kedelai berbiji kecil (Anjasmoro) berdasarkan variabel kecepatan perkecamabahan, indeks vigor, bobot kering kecambah normal, daya berkecamabah dan potensi tumbuh maksimum. Perbandingan varietas Grobogan menghasilkan vigor benih yang lebih tinggi dari varietas Burangrang berdasarkan variabel indeks vigor dan daya berkecambah. Varietas Anjasmoro dan Grobogan tanpa pemupukan menghasilkan vigor yang lebih rendah dibandingkan dengan penambahan dosis pupuk rekomendasi (100 dan 150 kg/ha) dan diatas rekomendasi (200 dan 250 kg/ha) berdasrkan variavel kecepatan perkecmabahan dan indeks vigor. Varietas Grobogan dengan penambahan dosis rekomendasi (100 kg/ha) memiliki vigor benih yang paling tinggi dibandingkan perbandingan lainnya.

The Plastochron Index as Applied to Developmental Studies of Cottonwood

1971 ◽  
Vol 1 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Philip R. Larson ◽  
J. G. Isebrands
Keyword(s):  
Developmental Stages ◽  
Preliminary Test ◽  
Dry Weight ◽  
Leaf Length ◽  
Developmental Studies ◽  
Dependent Variables ◽  
Plastochron Index ◽  
Nondestructive Measurements ◽  
Leaf Dry Weight ◽  
Weight Number

Leaves of cottonwood (Populusdeltoides, Bartr.) plants grown under constant conditions are initiated at relatively uniform rates. Because of this uniformity, the plastochron index (PI), developed by Erickson and Michelini (1957), can be applied to quantitatively identify the developmental stage of the vegetative shoot. In a preliminary test, the PI was shown to be linearly related to time, with plastochron intervals ranging from 2.00 to 2.76 days. In a second test, leaf plastochron indexes (LPI) were calculated for a series of trees representing five size classes. Statistical models were developed for each size class, relating each of the dependent variables (leaf length, leaf area, leaf dry weight, number of vessels per internode, and number of vessels per petiole) to LPI. These models were used to demonstrate that the PI and LPI can serve two useful purposes when applied to developmental studies of woody plants: (1) to adjust plants of different developmental stages to a standardized morphological time scale, and (2) to predict developmental processes and events from simple, nondestructive measurements.

scholarly journals Influence of Pre-Emergence Weedicides on Turmeric (Curcuma longa L.) Growth and Yield

2020 ◽  
pp. 272-278
Author(s):  
T. Ganapathi ◽  
M. R. Ravikumar ◽  
G. R. Rajakumar
Keyword(s):  
Weed Management ◽  
Agricultural Research ◽  
Curcuma Longa ◽  
Dry Weight ◽  
Leaf Length ◽  
Growth And Yield ◽  
Research Station ◽  
Fresh Weight ◽  
Hand Weeding ◽  
Quizalofop Ethyl

A field experiment was conducted during 2015-16, 2016-17 and 2017-18 at Agricultural Research Station, Hanumanamatti to study the effect of chemical herbicides on weed management in turmeric. The treatments consisted of pre emergent application of Alachlor, Butachlor, Pedimethalin, Atrazine and Quizalofop ethyl. The pooled mean results indicated that, pre-emergent application of Alachlor @ 1.50 kg ai / ha + one interculture + one hand weeding (A1IC1HW) recorded the least weed density (13.67, 68.11 monocot weeds and 2.67,12.36 dicot weeds), weed bio-mass (32.33 g, 43.67 g fresh weight of monocot weeds and 5.68 g, 26.05 g fresh weight of dicot weeds, 17.50g, 7.68g dry weight of monocot weeds and 2.34 g, 10.69 g dry weight of dicot weeds), the highest turmeric plant height (11.35 cm, 32.49 cm), number of leaves (4.92, 8.39), leaf length (5.08 cm, 18.91cm), leaf breadth (2.21 cm, 7.25 cm) and number of tillers per plant (1.01, 4.34) at 30 and 60 days after planting respectively. The treatment with Alachlor @ 1.50 kg ai / ha + one interculture + one hand weeding (A1IC1HW) also recorded the highest yield per plot (65.03 kg), rhizome yield/ha (43.36 tonnes) and processed rhizome yield (8.67 t/ha) followed by Pendimethalin @ 1.00 kg ai/ha + one interculture + one hand weeding (P1IC1HW) compared to farmer’s practice (2HW1IC) and unweeded control (WC).

Sign in / Sign up

Export Citation Format

Share Document