scholarly journals Korelasi Komponen Pertumbuhan dan Hasil pada Pertanian Terpadu Padi-Azolla

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Etty Safriyani ◽  
Mery Hasmeda ◽  
Munandar Munandar ◽  
Firdaus Sulaiman

Safriyaniet al, 2018. Correlation of Growth and Product Components on Integrated farming Padi-Azolla. JLSO 7(1):In order to increase the growth and production of rice plants that support sustainable agriculture can be done with the azolla application. This study aimed to evaluate the correlation of the components of growth and yield on rice-azolla production. The research was conducted on Karang Ketuan Subdistrict South Lubuklinggau II Subdistrict Lubuklinggau City from January to April 2018. This study used a randomized block consisting of K1=250 kg urea ha-1 without azolla, K2=250 kg urea ha-1+azolla 1000 kg ha-1, K3=187.5 kg urea ha-1+azolla 1000 kg ha-1, K4=125 kg urea ha-1+azolla 1000 kg ha-1, K5=62.5 kg urea ha-1+azolla1000 kg ha-1, K6=without Urea+azolla1000 kg ha-1. Data analysis used correlation and path analysis. The results showed that plant height and number of pithy grains correlated on grain weight with higher values than other growth components. Dry weight of straw and harvest index had a direct and positive effect on grain weight with cross coefficients value namely 1.086 and 0.755 representatives. Plant height and number of pithy grains could be used as an indicator of crop production.

Weed Science ◽  
2004 ◽  
Vol 52 (1) ◽  
pp. 178-182 ◽  
Author(s):  
Donnie K. Miller ◽  
Robert G. Downer ◽  
B. Roger Leonard ◽  
E. Merritt Holman ◽  
Steve T. Kelly

Field research was conducted in 1999 and 2000 to determine the effect of reduced glyphosate rates on growth and yield of nonglyphosate-resistant cotton. Rates of 9, 18, 35, 70, 140, and 280 g ha−1, representing 0.008, 0.016, 0.031 0.063, 0.125, and 0.25, respectively, of the maximum use rate per application (1,120 g ha−1), were applied to cotton at the two-, five-, or nine-node growth stage. On the basis of visual injury estimates, cotton was more tolerant to glyphosate at the nine-node than at earlier growth stages. Plant dry weight was reduced with 70 g ha−1of glyphosate or higher, when applied at the two- and five-node growth stages in two of three experiments. Dry weight was not affected by glyphosate at the nine-node stage. Plant height also was unaffected by glyphosate rates below 70 g ha−1, but height reduction was noted for all growth stages by experiment combinations, with the exception of the nine-node application for both experiments in 2000, with herbicide rates of 70 g ha−1or higher. Cotton maturity delay, as noted by an increase in node above white flower number, was observed only at the highest glyphosate rate applied to two- and five-node cotton in one of three experiments. Percent open boll data analysis indicated a decreased opportunity of observing an open boll with increasing glyphosate rate, and this effect was greater at the five-node compared with the two- and nine-node stages in two of three experiments. Seedcotton yield after all glyphosate applications was equivalent to that for the nontreated control.


Author(s):  
Anjani Kumar ◽  
D. N. Singh ◽  
Krishna Prasad ◽  
Avinash Pandey

This study performed to determine the correlation, their comparison and path coefficients of yield and yield contributing characters by using F2 (BPT-5204 /IR-64Drt1) their two parents separately and the joint parental populations. In this study, the computations for testing the significance of the difference between the 15 traits of different populations of rice determined from 324 F2, 9 IR-64Drt1 (P1), 9 BPT-5204 (P2) and 18 joint parental population. Results showed that the correlation of F2 indicated that the number of total tillers per plant, number of panicles per plant, plant height, panicle length, biomass, harvest index and yield per panicle were positive and significant association with yield per plant. Correlation of IR-64Drt1 stated that the plant height, panicle length, biomass and harvest index were positive and significant association with yield per plant. Correlation of BPT-5204 shown that the secondary branches per panicle and hundred-grain weight exhibited positive and significant association with yield per panicle. Correlation of the joint parent indicated that the plant height, panicle length, grain length, grain width, hundred-grain weight, biomass, harvest index and yield per panicle had exhibited positive and significant association with yield per plant. Path coefficient analysis indicated that harvest index had the highest direct positive effect (0.582) on yield per plant in the F2 population. However, the panicles per plant had the highest direct positive effect (1.481) on yield per plant IR-64Drt1 population. The total tillers per plant had the highest direct positive effect (1.821) on yield per plant in BPT-5204 population. In the joint population of BPT-5204 and IR-64Drt1, path analysis of yield components revealed that the biomass had the highest direct positive effect (0.658) on yield per plant. Information obtained in this study revealed that traits, the harvest index, biomass and panicles per plant are suggested as selection indices for grain yield improvement at segregating populations of rice.


2017 ◽  
Vol 45 (2) ◽  
pp. 154 ◽  
Author(s):  
Merry Gloria Meliala ◽  
Trikoesoemaningtyas , ◽  
Dan Didy Sopandie

<p>Ratooning can be used as an alternative cultivation technique for production of sorghum. This study was aimed to evaluate the growth and production of ratoon following the main crop. The study was conducted during August 2013 until November 2014, at Cikabayan Experimental Station, Bogor Agricultural University. The research was arranged in a randomized complete block design with four replications. The results showed that genotypes was significantly affected the vegetative and reproductive characters, physiologycal characters of the main crop, ratooning ability, and vegetative characters of ratoon crop. Plant height, stem diameter, fresh and dry weight, harvest time, and harvest index of main crops had significant correlation with ratooning ability. Plant height, total chlorophyll, fresh and dry weight, panicle weight, grain weight per panicle, 1,000 grain weight, harvest index, and transpiration rate of main crops had significant correlation with ratoon growth. Based on path analysis, the main crop growth directly affected ratoon height, and vegetative characters of ratoon directly affected the yield. The ratoon yielded 48.9-65.7% of the main crop yield. <br /><br />Keywords: path analysis, ratooning ability, ratoon crops<br /><br /></p>


2018 ◽  
Vol 5 (4) ◽  
pp. 34
Author(s):  
Paul B Timotiwu ◽  
Agustiansyah . ◽  
Ermawati . ◽  
Suci Amalia

This study was aimed to determine the effect of the increasing silica and boron concentration and their interaction on plant growth and soybean yield. This research was conducted from April-September 2017 in the integrated field of the experiment at the University Lampung. The treatments were 0 and 5 ppm Boron (B) fertilizer and Silica (Si) concentrations in 6 levels (0, 25, 50, 75, and 100 ppm). The difference between the means of B were calculated by using Orthogonal Contrast and response of Si was used Polynomial at a 0.05. The results showed that application of 5 ppm of B foliarly produced higher of soybean growth and production than without B treatment through variables of the dry weight and grain weight. Application of up to 125 ppm of Si foliarly was improved of soybean growth and production through variables of plant height, number of leaf, leaf area, dry weight and number of productive branch, number of pods, filled pod, and grain weight, but it didn’t affect the percentage of empty pods. The response of soybean growth and production to the increasing Si didn’t depend on the foliar B which was showed in all variables.


2019 ◽  
Vol 24 (1) ◽  
pp. 1
Author(s):  
Husnain Husnain ◽  
Diah Setyorini ◽  
Asmarhansyah Asmarhansyah ◽  
Andriati Andriati

Fertilizers and fertilization technology have important roles in increasing crop production including lowland rice. In response to the issue, a field experiment was conducted to study the effects of micronutrients on growth and yield of lowland rice. The experiment was carried out at Cihideung Ilir Village, Dermaga Sub-district, Bogor Regency from November 2015 until March 2016. The experiment consisted of 8 treatments, namely control (without fertilization), NPK-standard, NPK-standard  + ¼ dosage of Hortigro Rice fertilizer, and ¾ NPK  + ¼  until 11/4 dosages of Hortigro Rice fertilizer as a source of macronutrients N, P, K and micronutrients of Mn, Cu, Zn, B, and Mo. The treatments were arranged in a Randomized Block Design with 3 replications. Parameters observed during the research were plant height, tiller number, and yield of grain and straw of INPARI-32 lowland rice as crop indicator. The  results  showed that among other treatments, the highest plant height was resulted from the application of ¾ NPK-standard + ¼ Hortigro Rice, i.e. around 124 cm at 60 days after planting. The highest harvesting dry weight of grain and straw were observed in NPK-standard + 1/4 of Hortigro Rice fertilizer treatment, i.e. around 9.0 Mg ha-1 and 25.9 Mg ha-1, respectively. This yield showed a significant difference with ¾ NPK-standard combined with ¾  -11/4 dosages of Hortigro Rice. The highest  dry weight of  milled grains was  resulted in the application of  ¾ NPK-standard + 1/2 Hortigro Rice, i.e. around 7.3 Mg ha-1, which is significantly different from that in ¾ NPK-standard combined with 1.0 - 11/4 dosages of Hortigro Rice treatments, while the highest dry weight of straw was provided by NPK-standard, i.e. around 14.0 Mg ha-1. The highest  dry weight of 1000 milled grains and ratio of  dry weight of milled grain to straw were provided by ¾ NPK-standard + 1/2 Hortigro Rice around 32.0 gram and  0.63, respectively. The results indicated that the application of micronutrient fertilizer of Hortigro Rice in combination with NPK fertilizers can potentially increase lowland rice productivity due to the micronutrients content of Mn, Cu, Zn, B, and Mo in it.


2015 ◽  
Vol 18 (1) ◽  
pp. 37-48
Author(s):  
L Nahar ◽  
MH Ali ◽  
SM Masum ◽  
MM Mahbub ◽  
SR Haque

An experiment was conducted at the Agronomy Field of Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from November 2011 to March 2012 to evaluate the performance of prilled urea and urea super granules (USG) on the growth and yield of wheat varieties. The experiment comprised of four wheat varieties viz., BARI Gom 21, BARI Gom 24, BARI Gom 25 and BARI Gom 26, and five nitrogen (N) levels viz., control (no Nitrogen), 84 kg ha-1 N from USG, and 30, 50 and 70 kg N ha-1 from prilled urea i.e., 67, 112 and 155 kg urea ha-1. The experiment was laid out in a split-plot design with three replications where wheat varieties were placed in the main plot and nitrogenous fertilizers in sub-plots. Experimental results indicated that different varieties had the significant effect on plant height, number of tillers and dry weight plant-1, and number of grains spike-1, grain and straw yield, and harvest index. The variety BARI Gom 24 produced the highest grain yield (2.49 t ha-1) that mainly attributed by the maximum number of spikes plant-1, number of grains spike-1 and 1000-grain weight. Among the different nitrogenous fertilizers 84 kg N ha-1 from USG (1.8 g) gave the highest grain yield (2.69 t ha-1) due to the maximum number of spikes plant-1, maximum number of grains spike-1 and 1000-grain weight. The variety BARI Gom 24 produced the highest grain yield (2.80 t ha-1) with 80 kg N ha-1 from USG application.Bangladesh Agron. J. 2015, 18(1): 37-48


Agrin ◽  
2017 ◽  
Vol 21 (1) ◽  
Author(s):  
Nia Nur Aristiani ◽  
Purwandaru Widyasunu ◽  
Supartoto Supartoto

Penelitian bertujuan mengetahui: 1) dosis optimum inokulasi Lemna polyrhiza (Lp) bagi padi di lahansawah, 2) waktu inokulasi Lp terbaik bagi pertumbuhan dan produksi padi sawah, dan 3) interaksi dosis dan saatinokulasi Lp bagi padi sawah. Rancangan percobaan adalah Rancangan Acak Kelompok Lengkap (RAKL) tigakali ulangan. Faktor yang dicoba: 1) dosis aplikasi Lp (D): D0 (kontrol atau tanpa Lp); D1 (25 g Lp m-1); D2 (50g Lp m-1), dan D3 (75 g Lp m-1), serta 2) saat inokulasi Lp (P): P1 (padasaat tanam padi) dan P2 (14 hari setelahtanam padi). Variabel yang diamati: tinggi tanaman, jumlah anakan produktif, tingkat kehijauan daun, bobot jeramiper rumpun, bobot jerami/ha, jumlah gabah per malai, bobot 1000 biji, bobot gabah kering/ rumpun, serapannitrogen, dan prosentase penutupan petak percobaan oleh Lp. Hasil penelitian menunjukkan bahwa inokulasi Lpmemberikan pengaruh sangat nyata terhadap variabel tingkat kehijauan daun dengan hasil tertinggi pada perlakuanD2 (50 g Lp m-1) dan prosentase penutupan petak percobaan oleh Lp dengan hasil terbaik pada perlakuan D3 (75g Lp m-1). Hasil gabah tertinggi dicapai oleh perlakuan D1P1 dengan rata-rata hasil 1,56 ton/ha (konversi). Saatinokulasi Lp berpengaruh nyata terhadap bobot seribu biji, bobot tertinggi pada perlakuan P1 (bersamaan saattanam padi); prosentase penutupan percobaan petak oleh Lp terbaik pada perlakuan P1 (bersamaan saat tanampadi). Kombinasi perlakuan berpengaruh nyata terhadap prosentase penutupan petak percobaan oleh Lp denganhasil terbaik pada perlakuan D3 x P2 (75 g Lp m-1 yang diberikan 14 hari setelah tanam padi).Kata kunci: Padi, L. polyrhiza, dosis dan saat inokulasi L. polyrhizaABSTRACTThis research aimed to found-out: 1) the optimum dose of Lemna polyrhiza (Lp) innoculation to lowlandrice, 2) the best innoculation time of Lp to growth and yield of lowland rice, and 3) the dose and inoculation timeinteractions of Lp torice. Theexperiment was the factorial Randomized Complete Block Design repeated by threetimes. The factors were tested: 1) Lp innoculation dose: D0 (control or non Lp), D1 (25 g Lp m-1), D2 (50 g Lpm-1),and D3 (75 g Lp m-1), and 2) Lp’s innoculation time (P): P1 (at rice plant planting) and P2 (14 days afterrice planting). The variables observed: the plant height, number of productive tillers, leaf greeness level, strawdry weight/hill, straw dry weight/ha, number of grain/panicle, 1000 grain weight, grain dry weight/hill, nitrogenuptake, and the Lp covering percentage. The resultshowed: The Lpdose gave very significant effect to leaf greenesslevel at D2 (50 g Lp m-1) and to the Lp covering percentage at D3 (75 g Lp m-1), both were the best values. Thehighest rice yield was achieved by D1P1 by 1,56 ton/ha (conversion average). Innoculation time of Lp gavesignificant effect: to 1000 grain weight at P1 (at rice planting) as the best results, and to the Lp coveringpercentage (the best result was P1). The best combination of treatmentwhich gave significant effect to thepercentage of covering experiment field was D3 x P2 ( 75 g Lemna m-1 which was innoculated at 14th day afterrice planting).Keywords: Rice, L. polyrhiza, dose and innoculation time of L. polyrhiza


2010 ◽  
pp. 30-34
Author(s):  
MS Islam ◽  
MSU Bhuiya

Pot experiments were conducted in net house during Boro 2002 and 2003 at Bangladesh Rice Research Institute (BRRI) to compare the growth and yield of hybrid and inbred rice varieties under controlled condition. Hybrid variety Sonarbangla-1 and BRRI hybrid dhan1 and inbred modern variety BRRI dhan29 were used in both the years. During Boro 2002, Sonarbangla-1 and BRRI hybrid dhan1 had higher plant height and tillers hill-1 compared to BRRI dhan29. The largest leaf area of 75cm2 hill-1 was recorded in BRRI hybrid dhan1 at 30 DAT but at 60 and 90 DAT, Sonarbangla-1 had the highest leaf area of 723 and 1406 cm2 hill-1, respectively. The highest shoot dry matter production was recorded in BRRI hybrid dhan1 at 30 DAT but in Sonarbangla-1 at 60 and 90 DAT. Rooting depth and root dry weight of Sonarbangla-1 were 15- 20% higher than those of BRRI hybrid dhan1 and BRRI dhan29. At harvest, the largest number of panicles hill-1 was observed in BRRI dhan29 followed by Sonarbangla-1. The number of grains panicle-1, 1000-grain weight and grain yield were higher in Sonarbangla-1 followed by BRRI dhan29. During Boro 2003, highest plant height, number of tillers hill-1, leaf area and shoot dry matter were recorded in BRRI hybrid dhan1 at all DAT, followed by Sonarbangla-1 in most cases. Rooting depth and root dry weight were the highest in Sonarbangla-1 followed by BRRI hybrid dhan1. At harvest, highest number of panicles hill-1 were observed in BRRI dhan29 and Sonarbangla-1 but BRRI hybrid dhan1 had the highest number of grains panicle-1. Sonarbangla-1 had the highest 1000-grain weight and grain yield.


2018 ◽  
Vol 2 (2) ◽  
pp. 102
Author(s):  
Dedytha Nur Annisa ◽  
Adriani Darmawati ◽  
Sumarsono Sumarsono

The research aimed to study the growth and yield of red spinach as affected by manures and giberelin. This research used monofactor experiment with Completely Randomized Design consist of 7 treatments and 3 replications. The treatments were T0 (control), T1 (GA3 100 ppm and cow manure 6,250 kg / ha), T2 (GA3 200 ppm and cow manure 12,500 kg / ha), T3 (GA3 300 ppm and cow manure 18,750 kg / ha), T4 (GA3 100 ppm and goat manure 3,750 kg / ha), T5 (GA3 200 ppm and goat manure 7,500 kg / ha), T6 (GA3 300 ppm and goat manure 11.250 kg / ha). Observed parameters were plant height, leaf number, leaf area, wet weight and dry weight. The data were processed by analysis of variance and further test with Duncan Multiple Range Test and Contrast Test. The best plant height growth was in the treatment of 18,750 kg / ha of cow manure and 300 ppm gibberellin resulted plant height of 21.11 cm. The highest number of leaves in the treatment of 11,250 kg / ha of goat manure and 300 ppm gibberellin resulted 21.44 leaves. Leaf area (528.79 cm2), fresh weight (68,50 g), and best dry weight (26.97 g) were achieved at 7,500 kg / ha goat manure treatment and 200 ppm giberelin. It was concluded that the application of manure and gibberellin increased plant growth (plant height, leaf number, leaf area), and crop production (fresh weight and dry weight) of red spinach. The combination of goat manure and giberelin was better than cow manure on all parameters. Goat manure of 7,500 kg / ha and 200 ppm gibberellin increased growth and production of red spinach on leaf area parameters, fresh weight, and dry weight. Keywords : red spinach, manure, gibberellin


2019 ◽  
Vol 6 (3) ◽  
pp. 394-402
Author(s):  
Saraswati Kurnia Dewanti ◽  
Eny Fuskhah ◽  
Sutarno

This study aimed to examine the effect and interaction between vermicompost dosage and plantspacing on kale growth and yield. The research was held on March – June 2019 in Tegalsari,Sidomukti, Semarang Regency and at Ecology and Crop Production Laboratory, Faculty of Animaland Agricultural Sciences, Diponegoro University, Semarang. The study used a completelyrandomized factorial design 4 x 2 with 3 replications. The first factor was the vermicompost dosage of100 kg N/Ha (A1), 150 kg N/Ha (A2), 200 kg N/Ha (A3), and 250 kg N/Ha (A4). The second factorwas plant spacing of 20 x 40 cm (B1) and 30 x 40 cm (B2). Data were analyzed by variance andproceeded with DMRT test at level 5%. The observed variables were plant height, amount of leaves,chlorophyll, root length, fresh weight, and dry weight. The results showed that different dosages ofvermicompost and plant spacing only affected chlorophyll and root length of kale. The highestchlorophyll was attained at the treatment of 150 kg N/Ha vermicompost dosage and 20 x 30 cm plantspacing, equal to a treatment of 250 kg N/Ha vermicompost dosage and 30 x 40 cm plant spacing.The highest root length was attained at the treatment of 250 kg N/Ha vermicompost dosage and 30 x40 cm plant spacing, equal to the treatments of 100 kg N/Ha vermicompost dosage and 30 x 40 cmplant spacing and 200 kg N/Ha vermicompost dosage and 20 x 40 cm plant spacing.


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