scholarly journals Evaluation of Growth and Physiological Responses of Three Rice (Oryza sativa L.) Varieties to Elevated Temperatures

2019 ◽  
Vol 6 (01) ◽  
pp. 17-23
Author(s):  
Dede Yudo Kurniawan ◽  
Ahmad Junaedi ◽  
Iskandar Lubis ◽  
Titi Candra Sunarti
Keyword(s):  
Elevated Temperatures ◽  
Oryza Sativa L ◽  
Block Design ◽  
Physiological Responses ◽  
Dry Weight ◽  
Maximum Temperature ◽  
Rice Varieties ◽  
Shoot Dry Weight ◽  
Randomized Block Design ◽  
Two Factors

Temperature is a primary factor that affects the rate of plant development and has great impacts on plant growth, metabolism, and yield. A study was conducted to analyze the effects of elevated temperature on rice morphological and the physiological growth. The research was arranged in a nested randomized block design consisting of two factors, temperatures and rice varieties. Elevated temperatures were provided through the uses of different materials of plastic roof and walls to have an average and maximum temperature of 27.6 °C and 41.6 °C (T1); 28.1°C and 43.8 °C (T2), and 29.5°C and 47.1 C (T3), respectively. The study used three varieties of rice, “Ciasem”, “Ciherang”, and “IR64”. All rice varieties showed signifi cant increases in tiller number per hill and shoot dry weight, but had a decrease in the stomatal conductance, transpiration rate, and SPAD values at grain fi lling stage with the increasing temperatures. The number of tiller per hill increased when temperature was elevated from 27.6 to 28.1 and 29.5°C by about 29.9 and 21.3%, respectively.

scholarly journals Effect of seedling age on growth and yield of two rice (Oryza sativa L.) varieties transplanted in Saline Coastal Area of Baros, Yogyakarta

2021 ◽  
Vol 6 (1) ◽  
pp. 38
Author(s):  
Riza Afrinda ◽  
Budiastuti Kurniasih
Keyword(s):  
Coastal Area ◽  
Saline Soil ◽  
Oryza Sativa L ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Rice Varieties ◽  
Seedling Age ◽  
Shoot Dry Weight ◽  
Significant Difference

Marginal land along the coast should be utilized to increase the national rice production. In addition, the use of saline resistant varieties, it is necessary to determine the best seedling age for saline soil. This study aimed to evaluate the growth and yield responses of two rice varieties transplanted at different seedling age on saline soil. The experiment was arranged in a factorial Randomized Completely Block Design (RCBD) with three replications, conducted at saline coastal area of Baros, Yogyakarta, starting from January to June 2017. The first factor was rice varieties, consisting of Dendang and IR-64. Meanwhile, the second factor was the seedling age, consisting of 2 and 4 weeks after sowing (WAS) seedlings. The results showed that the growth and yield of two rice varieties (Dendang and IR-64) showed significant difference, and Dendang showed a better performance than IR-64. The higher yield of Dendang compared to IR-64 was supported by higher plant growth (shoot dry weight) and yield components (number of seeds per panicle, seed weight per plot, and productivity). The 2 and 4 WAS seedlings did not give significantly different effects on nearly all growth variables. However, 2 WAS Dendang rice seedlings had higher shoot dry weight. Meanwhile, IR-64 had higher leaf greenness in 4 WAS seedlings compared to that in 2 WAS seedlings.

scholarly journals Weed Growth and Lowland Rice Production as Affected by Planting Patterns and Rice Varieties

2019 ◽  
Vol 6 (01) ◽  
pp. 67-75
Author(s):  
Dwi Fajar Rianto ◽  
Dwi Guntoro ◽  
Edi Santosa
Keyword(s):  
Production Systems ◽  
Block Design ◽  
Dry Weight ◽  
Rice Production ◽  
Limiting Factors ◽  
Weed Species ◽  
Rice Varieties ◽  
Shoot Dry Weight ◽  
Planting Methods ◽  
Randomized Block Design

Weeds are one of the most limiting factors in rice cultivation. This study aims to evaluate the eff ects of rice planting patterns on the prevalence of several weed species, Cyperus iria, Echinochloa crusgalli, Fimbristylis miliacea, Leptochloa chinensis, Ludwigia octovalvis, and Spenoclea zeylanica, and to discuss the implications on rice production systems. The research was conducted in IPB Sawah Baru experimental farm in Bogor, West Java, Indonesia, from December 2017 to April 2018. The experiment was arranged in a randomized block design with two factors, rice varieties and rice planting methods. The rice varieties, “IPB 3S” and “Ciherang”, were assigned as the main plot, whereas planting methods, i.e. 25x25 tile, Legowo 2:1 (double rows), Legowo 4:1 (quadruple rows), as sub-plots. The results showed that in the “IPB 3S” plots L. octovalvis shoot dry weight decreased by 33.0%, the root dry weight of L. chinensis roots decreased by 22.6%, and the number of S. zeylanica weed leaves decreased by 28.4% compared to the plots planted with “Ciherang”. With legowo 2:1 planting method the dry weights of L. octovalvis decreased by 21.5%, L. octovalvis by 1.7%, and L. chinensis by 4.4%, and the number of weeds E. crus-galli by 7.0 % compared to Tegel 25x25 method. L. chinensis seemed to be a dominant weed at both vegetative and generative stage of rice development.

scholarly journals EFFECT OF INTERNODES NUMBER AND CONCENTRATION OF ROOTONE-F PLANT GROWTH REGULATOR ON GROWTH OF PEPPER (Piper nigrum L.) CUTTINGS

Agrivet ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 48
Author(s):  
Van Basten ◽  
Lagiman Lagiman ◽  
Suwardi Suwardi
Keyword(s):  
Growth Regulator ◽  
Block Design ◽  
Dry Weight ◽  
Piper Nigrum ◽  
Pepper Plant ◽  
Shoot Dry Weight ◽  
Planting Material ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Two Factors

Pepper (Piper nigrum L.) is one of the spice plants that have high export value and propagated by cuttings. Use of internodes number and growth regulator were needed as a way to provide a good of planting material through cuttings. This research aimed to determine the best interaction between internodes number and concentration of Rootone-F growth regulator on growth of pepper (Piper nigrum L.) by cuttings. This research was carried out in experimental garden of Agriculture Universitas Pembangunan Nasional “Veteran” Yogyakarta, Ngemplak, Sleman, Yogyakarta, since February – May 2019. This research used a Randomized Block Design (RBD) with two factors. The first factor was internodes number which were one, two and three internodes. The second factor was concentration of Rootone-F which were 50 ppm, 100 ppm, and 150 ppm. So there were 3 x 3 = 9 treatments combination. Cuttings wit seven intenodes without Rootone-F were used as control. The result showed there were no interaction from two treatments in each parameter. There were no significant difference between control and treatment of each parameter. Internodes number has significantly affected in paramater percentage of life, day of emergence shoot, shoot length, number of leaves, number of root, root volume and shoot dry weight with the best result were cutting with 3 internodes. Concentration of Rootone-F has significantly affected in parameter percentage of life and day of emergence shoot, concentration 100 ppm and 150 ppm better than 50 ppm.Keyword: Pepper plant, cuttings, internodes, Rootone-F.

scholarly journals Pengaruh dosis bokashi jerami padi sebagai sumber silika (Si) terhadap pertumbuhan dan hasil tiga varietas padi sawah (Oryza sativa L.)

Jurnal Agro ◽  
10.15575/4817 ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 123-133
Author(s):  
Suryaman Birnadi ◽  
Budy Frasetya ◽  
Eko Prastio Sundawa
Keyword(s):  
Rice Straw ◽  
Oryza Sativa L ◽  
Block Design ◽  
Paddy Straw ◽  
Rice Varieties ◽  
Significance Level ◽  
Randomized Block Design ◽  
Two Factors ◽  
Independent Effects ◽  
Range Test

Penurunan ketersediaan unsur silikon (Si) di dalam tanah berdampak terhadap produktivitas padi, padahal jerami padi merupakan sumber pupuk Si yang memiliki kandungan silika 5-6%. Respons pemupukan silika pada setiap varietas padi berbeda. Penelitian ini bertujuan untuk mengetahui interaksi dan dosis rekomendasi bokashi jerami padi untuk setiap jenis varietas padi yang diteliti. Penelitian menggunakan Rancangan Acak Kelompok Faktorial dua faktor dengan tiga ulangan. Faktor pertama yaitu dosis bokashi jerami (J) terdiri dari 4 taraf yaitu: j0=tanpa bokashi jerami, j1= 7,5 t ha-1 bokashi jerami padi (Si=961,5 kg ha-1), j2=15 t ha-1 bokashi jerami padi (Si=1923 kg ha-1), j3=22,5 t ha-1 bokashi jerami padi (Si=2884,5 kg ha-1). Faktor kedua varietas padi (V) yaitu: v1= Inpari 19, v2= Inpari 13 dan v3= Ciherang. Parameter yang diamati: tinggi tanaman, jumlah anakan, berat gabah 1000 butir, berat gabah per rumpun dan berat gabah per hektar. Data hasil pengamatan dianalisis menggunakan analisis varians pada taraf 5%, dilanjutkan dengan uji beda jarak Duncan pada taraf 5%. Hasil analisis varians menunjukkan terdapat interaksi antara dosis bokashi jerami padi dengan jenis varietas padi pada berat gabah 1000 butir dan pengaruh mandiri terhadap parameter lainnya. Aplikasi bokashi jerami 15 t ha-1 meningkatkan produktivitas tiga varietas padi.ABSTRACTDeclining silicon availability in the soil affects paddy productivity, meanwhile paddy straw as a source of silica contains 5-6% silica. Response of application silica fertilizer is different for each paddy cultivar. This study aimed to determine the interaction and dosage recommendations of paddy straw bokashi for each type of paddy varieties observed. This study used a factorial randomized block design two factors with three replications. The first factor was bokashi paddy straw dose (J) consisted of 4 levels, namely: j0 = without bokashi straw, j1 = 7.5 t ha-1 bokashi rice straw (Si = 961.5 kg ha-1), j2 = 15 t ha- 1 bokashi straw rice (Si = 1923 kg ha-1), j3 = 22.5 t ha-1 bokashi rice straw (Si = 2884.5 kg ha-1). The second factor was paddy cultivar (V), i.e: v1 = Inpari 19, v2 = Inpari 13 and v3 = Ciherang. Parameters observed were plant height, number of tillers, 1000 grains weight, weight of grain per clump, and weight of grain per hectare. The data were analyzed with analysis of variance at the significance level of 5%  than continued with Duncan multiple range test at a significant level of 5%. The results showed that there was an interaction between the bokashi doses of paddy straw and the rice varieties on the grain weight of 1000 grains, yet independent effects occured on the other parameters. The application of 15 t ha-1 bokashi straw increases the productivity of three rice varieties.

scholarly journals PENGARUH DOSIS DAN INTERVAL PUPUK PELENGKAP CAIR TERHADAP DAYA HASIL TANAMAN PADI (Oryza sativa. L) MODEL JAJAR LEGOWO

2018 ◽  
Vol 19 (2) ◽  
Author(s):  
Luluk Sulistiyo Budi ◽  
Sri Rahayu ◽  
Ma’ruf Pambudi Nurwantara
Keyword(s):  
Crop Production ◽  
Oryza Sativa L ◽  
Block Design ◽  
Dry Weight ◽  
Time Interval ◽  
Milled Rice ◽  
Randomized Block Design ◽  
Panicle Number ◽  
Two Factors ◽  
Food Needs

Food needs in the form of rice in Indonesia are still a large component, the population continues to increase, so efforts to increase rice production can also be done well. The research objective is to produce plants optimally and specific targets needed. The research method used a factorial randomized block design using two factors. The first factor is the POC dose with 4 levels namely 0 cc/ l, 1 cc / l, 1.5 cc / l, and 2cc / l and the second factor is the interval of giving 4 days, 6 days once and 8 times a day. The parameters of the observations included plant height, leaf area, number of tillers, panicle number, panicle length, number of grains, the weight of wet stover, dry weight of stover, the weight of dry paddy grain and weight of dry milled rice. Analisa results using Duncan's double test with a 0.5% royal hose. The results obtained by the combination of POC interval and dose intervals were interaction and gave a significant effect on the rice crop production of the Jowo Legowo model on all observed parameters. The combination of a 4-day time interval with a powerful dose of 1.5 cc/liter of air, although it cannot be used with 2.00cc / liter, with milled dry grain production of 8.96 tons/ha.

Assessment of genetic variability for quantitative characters in rice (Oryza sativa L.) under post flood situation in sali

2021 ◽  
Vol 58 (1) ◽  
pp. 43-48
Author(s):  
Dalibha Pathak ◽  
Umesh Ch. Kalita
Keyword(s):  
Grain Yield ◽  
Coefficient Of Variation ◽  
Quantitative Traits ◽  
Oryza Sativa L ◽  
Block Design ◽  
Genetic Advance ◽  
Spikelet Sterility ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Spikelets Per Panicle

Sixteen genotypes of rice (including one check) were evaluated on 18 quantitative traits during sali (August), 2018 in a randomized block design with three replications at Instruction cum Research Farm, Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat to study the nature and magnitude of variability, heritability and genetic advance under delayed sown condition. The analysis of variance for 18 quantitative traits revealed the presence of significant differences for grain yield and its component characters. The highest genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was observed for chaffs per panicle followed by grains per panicle, spikelet sterility (%), spikelets per panicle, grain yield (kg/ha). A high heritability coupled with high genetic advance was observed for plant height (cm), spikelets per panicle, spikelet sterility (%), chaffs per panicle, grains per panicle, grain yield (g/hill), grain yield (kg/ha), biological yield (kg/ha), straw weight (kg/ha) and harvest index (%) indicating that selection might be effective for improvement of these characters under delayed sown condition with low input. From the findings of this investigation, one genotype viz., Gandhari emerged as the outstanding genotype which yielded 4170 kg/ha and could be directly used for cultivation in delayed sown situation with low inputs. Some other promising genotypes that yielded higher than the check Manoharsali under delayed sown condition were JR 29, JR 16, Basundhara and JR 60 and could be utilized as potential parental material in the hybridization programmes designed to develop suitable rice varieties for delayed sown situation.

scholarly journals Peran Pupuk Organik dalam Peningkatan Efisiensi Pupuk Anorganik pada Padi Sawah (Oryza sativa L.)

2015 ◽  
Vol 43 (1) ◽  
pp. 8
Author(s):  
Totong Siwanto ◽  
Sugiyanta , ◽  
Maya Melati
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Organic Fertilizer ◽  
Biological Properties ◽  
Paddy Rice ◽  
Inorganic Fertilizer ◽  
Growth And Yield ◽  
Research Station ◽  
Randomized Block Design ◽  
Two Factors

ABSTRACT<br />Application of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of  application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.<br />Keywords: NPK, organic fertilizer, paddy rice

scholarly journals Pertumbuhan dan Produksi Dioscorea sansibarensis Pax pada Perlakuan Panjang lanjaran dan Waktu Batang Membelit*

2018 ◽  
Vol 45 (3) ◽  
pp. 249
Author(s):  
Solikin ,
Keyword(s):  
Block Design ◽  
Soil Surface ◽  
Dry Weight ◽  
Growth And Yield ◽  
Botanic Garden ◽  
Randomized Block Design ◽  
Two Factors ◽  
Main Plot ◽  
Total Plant ◽  
Total Dry Weight

Dioscorea is potentially used as staple food to support food security. The research was aimed to determine the effect of stake length and time of  stem twining  on  the growth of Dioscorea sansibarensis Pax. The experiment was conducted  in  Purwodadi Botanic Garden from December 2014 until May 2015 using split plot randomized block design consisted of two factors, i.e. the stake length and time of stem twining. The stake length was the main plot consisted of 150 cm, 100 cm and 50 cm above soil surface and without stake (control). The time of stem twining as subplots, i.e. stem twined early, twined at the time of 4 leaves stage, and twined at 8 leaves stage. Each combination of the treatments was replicated three times. The results showed that there was significant effect on the stake length  and the time of stem twining treatments on the plant growth and yield. The stake  length of 150 cm treatment produced the highest fresh tuber and total plant dry weight, i.e., 257.24 g and 132.77 g per plant, respectively. On the contrary, the plant without stake produced the lowest fresh tuber and  total dry weight of plant, i.e., 112.10 g and 48.65 g per plant, respectively.<br /><br />Keywords: biomass,leaf area, photosyntesis, tuber weight

scholarly journals Enhancing Chromium Phytostabilization Using Chelator (Agrobacterium sp. I26 and Manure) to Support Growth and Quality of Rice (Oryza sativa L.)

2018 ◽  
Vol 15 (2) ◽  
pp. 83 ◽  
Author(s):  
Riani Dwi Utari ◽  
Mohammad Masykuri ◽  
Retno Rosariastuti
Keyword(s):  
Research Output ◽  
Oryza Sativa L ◽  
Block Design ◽  
Industrial Area ◽  
Good Growth ◽  
Chemical Fertilizers ◽  
Randomized Block Design ◽  
Two Factors ◽  
Control Application

There are many of rice field which is located near the industrial area. The industrial waste contains heavy metals (chromium) which will cause contamination of rice if the waste isn’t treated properly. The used of chemical fertilizers can cause chromium contamination. It needs an effort to do remediation, such as using phytostabilization mechanism. This research aimed to determine the role of chelator in chromium phytostabilization and its influence on the growth and quality of rice. The study was conducted in Waru village, Karanganyar in May to October 2018.  This research was factorial design used completely randomized block design with two factors, namely chemical fertilizers and chelator (<em>Agrobacterium </em>sp. I<sub>26</sub>, and manure). The parameters observed are chromium content and uptake by plant tissues (roots, shoot and rice), plant height and a number of clumps. Research output was without chemical fertilizer-chelator <em>Agrobacterium </em>sp. I<sub>26</sub> that can increase the chromium uptake in roots as big as 95.38 %, increased up to 10 %  in the shoot and decreased up to 92.38 % in rice compared to control. Application of <em>Agrobacterium</em> sp. I<sub>26</sub> can be recommended to produce good quality and quantity of rice (good growth and free from harmful pollutants such as chromium metal).

scholarly journals KAJIAN MACAM JARAK TANAM SISTEM JAJAR LEGOWO DAN VARIETAS TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN PADI (Oryza Sativa L.)

2019 ◽  
Vol 3 (1) ◽  
pp. 29-37
Author(s):  
Istiqomah Istiqomah ◽  
Ana Amiroh ◽  
Dwi Choiriyah ◽  
Suharso Suharso
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Water Channel ◽  
Empty Space ◽  
Economic Life ◽  
Staple Food ◽  
Randomized Block Design ◽  
Factor Ii ◽  
Significant Difference ◽  
Two Factors

Rice is a rice-producing food crop which now plays an important role in economic life in Indonesia. Namely rice as a staple food is very difficult to replace by other staples. Among them are corn, tubers, sago and other carbohydrate sources. So that the existence of rice is now a top priority for the community in meeting the needs of carbohydrate intake that can be filling and is a source of primary carbohydrates that are easily replaced into an energy source. Rice as a staple food is consumed by approximately 90% of the total population in Indonesia for daily essential food (Saragih,2001). How to plant with the jajar legowo system has the advantage that the plants are on the edge so that optimal sunshine can cause plant productivity to be high, facilitate weed control and pests / diseases, use of fertilizer more effectively and the availability of empty space for regulating water channel circulation on land (Sirrapa, 2011). This research was conducted using Factorial Randomized Block Design (RBD) method, which consisted of two factors and each factor consisting of 3 levels repeated 3 times, namely: J1: Conventional,J2: Jajar Legowo 2: 1,J3: Jajar Legowo 4: 1. Factor II: Varieties with 3 levels, V1: Situ Bagendit, V2: Ciherang,V3: IR-64. Of the two factors 9 combinations of treatments were obtained and repeated 3 times. Data obtained from observations were calculated by analysis of variance with the Fisher test (-F test at the level of 5% and 1%), if there were significant differences, it would be followed by the Smallest Significant Difference test (LSD 5%). The treatment of the legowo 4: 1 row system and the ciherang variety (V2J3) produces a better value than other treatments.

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