scholarly journals Adaptation of Situ Bagendit, Rindang 1 and Rindang 2 Varieties in Shallow Swamp Ogan Komering Ilir District South Sumatera

2021 ◽  
Vol 232 ◽  
pp. 03021
Author(s):  
Joni Karman ◽  
Suparwoto ◽  
Waluyo

Shallow swamps can be used for rice production during the dry season. The problem that occurs is lack of water. The technology needed to overcome these problems is drought tolerant superior varieties. The purpose of this study is to obtain superior varieties tolerant to drought on shallow lebak swampy. The study was conducted from April 2019 to August 2019. The varieties used were Situ bagendit, Rindang 1, Rindang 2, and the Siam (local) as comparison. Data collected included: plant height, number of productive tillers, number of grains per panicle, number of filled grains per panicle, number of empty grains per panicle and production. The method used is direct observation in the field. The data obtained were compiled by tabulation and analyzed by statistical tests namely the similarity test of the middle value (t-test). The results showed that the varieties Situ Bagendit, Rindang 1, and Rindang 2 had better numbers of productive tillers, number of grains per panicle, and number of filled grains per panicle than Siam varieties. The highest production was achieved by the Situ Bagendit variety, namely 4.6 tonnes/ha. Meanwhile, the production of Rindang 2, Rindang 1, and Siam varieties were 4.4; 4.0; and 2.0 tonnes/ha.

2019 ◽  
Vol 8 (1) ◽  
pp. 39-46
Author(s):  
Suparwoto Suparwoto

Suparwoto et al, 2019. The Growth and Production Three Rice Superior Varieties in Swampy Lands  at the Jambu Ilir Village, Ogan Komering Ilir District. JLSO 8(1):39-46.The assessment was carried out in Jambu Ilir Village, Tanjung Lubuk District, Ogan Komering Ilir Regency, South Sumatra, starting in the dry season of 2018. Varieties exhibited were 2 superior varieties  and 1 comparative variety, Mekongga. The aim of the study was to obtain information on the growth and production of Inpari 30 and Inpara 8 varieties that were adaptive and had high production on lebak lands. The study was designed by observation method, spacing of legowo 2: 1 (50x25x12.5 cm), seedling age 35 days after seedling, 2-3 seeds / holes. The dosage of fertilizer used is 150 kg Urea, 100 kg SP-36 and 100 kg KCl / ha. The variables observed were: plant height, number of productive tillers, number of grain per panicle, number of filled grains per panicle, and grain yield per ha. The data obtained was arranged in tabulation and analyzed by statistical tests, namely the test of the mean value (test-t). The results showed that the plant height of the varieties exhibited was classified as low to moderate with the number of productive tillers classified as moderate. Inpari 30, and Inpara 8 can adapt well in lebak lands with a production of 5.1-5.3 tons GKP / ha higher than Mekongga as a comparison variety and are highly favored by farmers.


1973 ◽  
Vol 19 (1) ◽  
pp. 49-57 ◽  
Author(s):  
James O Westgard ◽  
Marian R Hunt

Abstract We have studied the usefulness of common statistical tests as applied to method comparison studies. We simulated different types of errors in test sets of data to determine the sensitivity of different statistical parameters. Least-squares parameters (slope of least-squares line, its y intercept, and the standard error of estimate in the y direction) provide specific estimates of proportional, constant, and random errors, but comparison data must be presented graphically to detect limitations caused by nonlinearity and errant points. t-test parameters ( bias, standard deviation of difference) provide estimates of constant and random errors, but only when proportional error is absent. Least-squares analysis can estimate proportional error and should be considered a prerequisite to t-test analysis. The correlation coefficient (r) is sensitive only to random error, but is not easily interpreted. Values for r, t, and F are not useful in making decisions on the acceptability of performance. These decisions should be judgments on the errors that are tolerable. Statistical tests can be applied in a manner that provides specific estimates of these errors


2015 ◽  
Vol 35 (01) ◽  
pp. 98 ◽  
Author(s):  
Dyah Susilokarti ◽  
Sigit Supadmo Arif ◽  
Sahid Susanto ◽  
Lilik Sutiarso

Indonesian region is strongly influenced by the monsoon climatic conditions have obvious difference between wetseason and dry season. Climate variability and extreme climate phenomenon that often happens lately caused climatechange. Climate change is characterized by changes in rainfall patterns and its causes shifting early in the season thatmake it difficult to plan cultivation. It is therefore necessary to study the behavior of the climate through rainfall timeseries analysis. Statistical tests performed using the F test and t test. This study aims to identify climate change throughpattern trends, distribution and similarity of rainfall data at different timescales, using rainfall data rainy season (Octoberto March) and the dry season (April to September) year period from 1975 to 2012. Data obtained from 6 (six) graduatedrainfall stations around the study site those are Kalijati, Curugagung, Cinangling, Dangdeur, Subang and Pegaden. Dataare grouped in 10-year period with a 4-year timing differences in accordance with the rules of the moving average. Theperiod 1975 -1984 was indicated as an initial period as a basis to look for changes in rainfall patterns that occur. F testshows there has been a change in the distribution of rainfall in every period than normal period. T test showed there hasbeen a change in the pattern of rainfall in the dry season period from 1987 to 1996. While the rainy season is startingto look at the period from 1995 to 2004. Rainy season and the dry season period (1995-2004) shows a similar patternwith the normal period (1975 -1984) so that it is possible in a certain period of climate change on the location of thecycle is approaching normal conditions.Keywords: Time seriesanalysis,precipitation, climatechange, Subangdistrict ABSTRAKWilayah Indonesia sangat dipengaruhi oleh kondisi iklim monsun yang mempunyai perbedaan yang jelas antaramusim basah dan musim kering.Variabilitas iklim dan adanya fenomena iklim ekstrim yang sering terjadi akhir akhirini menyebabkan terjadinya perubahan iklim. Perubahan iklim ditandai adanya perubahan pola curah hujan yangmenyebabkan terjadinya pergeseran awal musim tanam sehingga sulit membuat perencanaan budidaya tanaman. Olehkarena itu perlu dilakukan kajian prilaku iklim melalui analisis deret waktu curah hujan.Uji statistik dilakukan denganmenggunakan uji F dan uji t. Penelitian ini bertujuan untuk mengidentifikasi terjadinya perubahan iklim melalui polakecenderungan, distribusi dan kesamaan data curah hujan pada rentang waktu yang berbeda, menggunakan data curahhujan musim hujan (Oktober – Maret) dan musim kemarau (April – September) periode tahun 1975 – 2012. Datadiperoleh dari 6 stasiun penakar curah hujan di sekitar lokasi penelitian yaitu stasiun Kalijati, Curug agung, Cinangling,Dangdeur, Subang dan Pegaden. Data dikelompokkan dalam periode 10 tahunan dengan beda waktu 4 tahun sesuaidengan aturanmovingaverage. Periode tahun 1975 -1984 menjadi periode awal sebagai dasar untuk melihat perubahanpola curah hujan yang terjadi. Uji F menunjukkan telah terjadi perubahan distribusi curah hujan disetiap periodedibanding periode normalnya. Uji t menunjukkan telah terjadi perubahan pola curah hujan musim kemarau sejakperiode tahun 1987 – 1996. Sedangkan musim hujan mulai terlihat pada periode tahun 1995 – 2004. Musim hujandan musim kemarau periode (1995-2004) menunjukkan pola yang sama dengan periode normal (1975-1984) sehinggadimungkinkan pada periode tertentu siklus perubahan iklim pada lokasi ini mendekati kondisi normal.Kata kunci: Analisis deret waktu, curah hujan, perubahan iklim, kabupaten Subang


Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 777
Author(s):  
Erythrina Erythrina ◽  
Arif Anshori ◽  
Charles Y. Bora ◽  
Dina O. Dewi ◽  
Martina S. Lestari ◽  
...  

In this study, we aimed to improve rice farmers’ productivity and profitability in rainfed lowlands through appropriate crop and nutrient management by closing the rice yield gap during the dry season in the rainfed lowlands of Indonesia. The Integrated Crop Management package, involving recommended practices (RP) from the Indonesian Agency for Agricultural Research and Development (IAARD), were compared to the farmers’ current practices at ten farmer-participatory demonstration plots across ten provinces of Indonesia in 2019. The farmers’ practices (FP) usually involved using old varieties in their remaining land and following their existing fertilizer management methods. The results indicate that improved varieties and nutrient best management practices in rice production, along with water reservoir infrastructure and information access, contribute to increasing the productivity and profitability of rice farming. The mean rice yield increased significantly with RP compared with FP by 1.9 t ha–1 (ranges between 1.476 to 2.344 t ha–1), and net returns increased, after deducting the cost of fertilizers and machinery used for irrigation supplements, by USD 656 ha–1 (ranges between USD 266.1 to 867.9 ha–1) per crop cycle. This represents an exploitable yield gap of 37%. Disaggregated by the wet climate of western Indonesia and eastern Indonesia’s dry climate, the RP increased rice productivity by 1.8 and 2.0 t ha–1, with an additional net return gain per cycle of USD 600 and 712 ha–1, respectively. These results suggest that there is considerable potential to increase the rice production output from lowland rainfed rice systems by increasing cropping intensity and productivity. Here, we lay out the potential for site-specific variety and nutrient management with appropriate crop and supplemental irrigation as an ICM package, reducing the yield gap and increasing farmers’ yield and income during the dry season in Indonesia’s rainfed-prone areas.


2021 ◽  
Vol 9 (3) ◽  
pp. 318-332
Author(s):  
Siti Maryatul Kiptiyah ◽  
Panca Dewi Purwati ◽  
Uswatun Khasanah

This research implementation a flipped classroom with ethnomathematics nuances in online learning for geometry and measurement courses to investigate its effect on increasing student independence and mathematical literacy skills. Face-to-face flipped classroom sessions with an ethnomathematical nuance are carried out online through zoom meetings and out-of-class sessions using an LMS in the form of Elena (Unnes elearning). This type of research is an experimental study using 35 samples of geometry and measurement class students selected by purposive random sampling technique in the Department of PGSD UNNES. The research instrument used a written test to measure mathematical literacy skills and a questionnaire to measure learning independence. The statistical tests in this research were the two-sample t-test, paired t-test, and gain test. The results showed an increase in learning independence and students' mathematical literacy skills by implementing an ethnomathematical flipped classroom with Elena's support for online learning of geometry and measurement.


2012 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
P L Biswas ◽  
U K Nath ◽  
S Ghosal ◽  
A K Patwary

Genotype-environment interactions through different stability parameters and performance traits of four fine rice genotypes were studied. The traits were; days to 50% flowering, days to maturity, plant height (cm), number of effective tillers per hill, panicle length (cm), number of fertile grains per panicle, number of sterile grains per panicle and yield (t/ha) in four fine rice genotypes across nine environments along with experimental farm of Genetics and Plant Breeding department, Bangladesh Agricultural University (BAU) Mymensingh. Significant differences were observed for genotypes, environments and genotypes–environment interaction. Stability analysis after Eberhat and Russell’s model suggested that the genotypes used in study were more or less responsive to environmental changes. Most of the genotypes performed better in Comilla. BAU125 was found stable for effective tillers per hill and comparatively less sensitive to other genotypes in panicle length and number of sterile grains per panicle. BR5 was stable for days to maturity and plant height whereas Kalizira performed better than other genotypes for fertile grains per panicle. In general, only the genotype BAU125 was found stable for effective tillers per hill, panicle length and lowest number of sterile grains per panicle.   DOI: http://dx.doi.org/10.3329/jbau.v10i1.12011   J. Bangladesh Agril. Univ. 10(1): 1–7, 2012  


2018 ◽  
Vol 2 (1) ◽  
pp. 51-57
Author(s):  
Dina Zakiyyatul Fuadah ◽  
Muhammad Taukhid

Background: Many educational institutions in Indonesia are familiar with the concept of interprofessional learning or interprofessional education but not many have applied. Facilitator readiness, one of the causes of this method has not been implemented optimally. Purpose: This study aims to determine the readiness of the lecturer as a facilitator in interprofessional learning. Methods: The pre-experimental design, pre and posttest design was used to examine a sample of 20 respondents which included the lecturers of nursing, midwifery and nutrition obtained by purposive sampling. Instrument to measure the readiness of lecturers using the RIPLS questionnaire. Result: The results of statistical tests using the T-Test found that the readiness of lecturers in the positive category where there was a change in readiness before and after being given an intervention in the form of interprofessional learning training with a Pvalue of 0.021. Conclusion: Educational institutions are recommended to start developing interprofessional education models that are mutually agreed upon and supported by clear facilities, policies and regulations. Subsequent research is expected to explore more appropriate interprofessional  learning models through both qualitative and quantitative approaches


2016 ◽  
Vol 8 (02) ◽  
Author(s):  
Hartono . ◽  
Anisa Sevi Oktaviani ◽  
Devi Nindya K

ABSTRAKMemberikan ASI merupakan hak setiap ibu setelah melahirkan, begitu pula pada ibu bekerja. Dibutuhkan informasi yang lengkap mengenai manfaat ASI dan bagaimana melakukan manajemen laktasi agar pemberian ASI dapat terlaksana dengan baik. Salah satu cara penatalaksanaan nonfarmakologis untuk mengurangi nyeri dengan endorphine massage. Endorphin Massage merupakan sebuah terapi sentuhan/pijatan ringan merangsang tubuh untuk melepaskan senyawa Endorphin yang merupakan pereda rasa sakit dan dapat menciptakan perasaan nyaman. Jenis penelitian ini menggunakan metode penelitian kuantitatif dengan desain penelitian pre-experimental, yaitu pretest-posttest design, dimana merupakan penelitian dengan membandingkan keadaan sebelum dan sesudah diberi perlakuan. Dalam penelitian ini nilai pretest-posttest yang diperoleh dari masing-masing kelompok dianalisis dengan menggunakan paired t test (Uji beda sampel berpasangan). Dari hasil uji statistik menggunakan paired t test dengan signifikansi level (α = 0,05), diperoleh nilai signifikan p=0,001 (p < 0.05) menunjukkan bahwa dilakukannya massase endhorpin mempunyai pengaruh yang bermakna secara statistik terhadap volume ASI pada ibu post partum.Kata Kunci : Endorphin, Massage, ASITHE INFLUENCE OF MASSASE ENDORPHIN AGAINST VOLUME OF BREAST MILK ON THE POSTPARTUMABSTRACTBreastfeeding is the right of every mothers after childbirth, as well as on working moms. It takes a complete information about the benefits of breastfeeding lactation management and how to do so that breast feeding can be done well. One way to reduce the pain no farmakologis management with endorphine massage.  Endorphin Massage is a therapeutic touch mild massage stimulates the body to release Endorphin which is a compound pain reliever and can create a feeling of comfort.  This type of research  using quantitative  research methods withpre experimental research design, namely pretest-posttest design, where is the study by comparing the circumstances before and after being given the treatment. In this research the value of pretest-posttest obtained from each group were analyzed using paired t test/ Test sample paired difference From the results of statistical tests using the paired t test with significance level (α =0.05), obtained significant value p= 0.001 (p < 0.05) showed that he does  have an effect endhorpin massase which means that statistically against the volume of breastfeeding in the mother postpartum.Keywords: Endorphin, Massage, Breastfeeding.


2020 ◽  
pp. 157-162
Author(s):  
A. K. Rai ◽  
S. R. Dash ◽  
N Behera ◽  
T. K Behera ◽  
H Das

Drought is the major problem in India and occurrence at the time of critical growth stages, reduce crop yield significantly. The National Rice Research Institute, Cuttak, Odisha has developed so many drought tolerance rice varieties to reduce the economic loss due to drought. Krishi Vigyan Kendra, Malkangiri introduced NRRI released two rice varieties i.e. Sahbhagi Dhan and Satyabhama at framers' field to evaluate the performance of these drought tolerant varieties in South Eastern Ghat Zone of Odisha. The highest plant height was observed with the rice variety Satyabhama (104.1 cm). But, overall performance of Sahbhagi Dhan was better as compare to Satyabhama and local check verity (Khandagiri). Sahbhagi Dhan gave highest yield of 36.5 q/ha, which was statistically differed from others. Correlations study for Sahbhagi Dhan was assessed and observed the positive correlation for grain yield with all studied characters except plant height. For economic point of view, Sahbhagi Dhan recorded highest net return of Rs.19, 925/- per ha along with B:C ratio of 1.6 as compared to the rest two varieties.


2019 ◽  
Vol 38 (1) ◽  
pp. 13
Author(s):  
Suparwoto Suparwoto ◽  
Waluyo Waluyo

<p>Lebak swampy lands are one of the contributors to rice production in Indonesia, especially in South Sumatra. This agroecosystem is affected by river water overflow and rainfall. Based on the height and duration of waterlogging, the lebak swampy land is divided into three typologies, namely shallow lebak swampy lands, middle swampy lands, and deep swampy lands. This paper discusses cultivation and adaptation of new superior varieties of rice on lebak swampy  lands. In this agroecosystem, rice is cultivated in the dry season after low tide, starting from shallow lebak swampy lands, then continuing to the middle lebak swampy lands and deep lebak swampy lands. Problems with rice cultivation on lebak swampy lands include: (1) stagnant water, (2) drought in the dry season, (3) continuous use of the same variety, (4) the use of poor quality seeds, (5) limited varieties superior, and (6) fertilizer use is not as recommended. Paddy cultivation in lebak swampy lands uses only local varieties such as Siputih which can be sown up to three times, so that the age of the seedlings can reach two months with high posture. Land preparation is carried out by cleaning weeds until they are ready for planting and using hand tractors in shallow and middle lebak swampy lands. The seed comes from its own multiplication (40 kg / ha). Ciherang and IR-42 varieties are used from season to planting season with fertilization according to the ability of farmers. Thus, the results obtained are low, ranging from 3.5-4.5 t / ha GKP. One way to improve rice productivity in lebak swampy lands is the use of new improved varieties. Inpara and Inpari varieties can grow and produce in shallow lebak swampy lands and middle lebak swampy lands. In shallow lebak swampy lands it is recommended to use drought tolerant varieties such as Situbagendit, Limboto, Batutegi, Inpago, Inpari-1, Inpari-4, Inpari-6, and Inpara-5. In deep lebak swampy lands, rice can only be cultivated once a year, using superior varieties in the long dry season. The recommended superior varieties are Inpara-3, Inpara-4, and Inpara-5 which are tolerant to soaking.</p><p>Key words: Paddy, lebak swampy lands, superior varieties, cultivation, adaptation</p><p> </p><p><strong>Abstrak</strong></p><p>Lahan rawa lebak merupakan salah satu agroekosistem penyumbang produksi beras di Indonesia, terutama di Sumatera Selatan. Agroekosistem ini dipengaruhi oleh luapan air sungai dan curah hujan. Berdasarkan tinggi dan lama genangan air, lahan rawa lebak dipilah menjadi tiga tipologi, yaitu lebak dangkal, lebak tengahan, dan lebak dalam. Makalah ini membahas budi daya dan adaptasi varietas unggul baru padi pada lahan rawa lebak. Pada agroekosistem ini padi dibudidayakan pada musim kemarau setelah air surut, dimulai dari lebak dangkal, kemudian dilanjutkan pada lebak tengahan dan lebak dalam. Permasalahan budi daya padi pada lahan rawa lebak antara lain: (1) genangan air, (2) kekeringan pada musim kemarau, (3) penggunaan varietas yang sama secara terus-menerus, (4) penggunaan benih tidak bermutu, (5) keterbatasan varietas unggul, dan (6) penggunaan pupuk tidak sesuai anjuran. Budi daya padi pada lahan lebak dalam hanya menggunakan varietas lokal seperti Siputih yang dapat disemai sampai tiga kali, sehingga umur bibit bisa mencapai dua bulan dengan postur yang tinggi. Penyiapan lahan dilakukan dengan cara pembersihan gulma sampai siap tanam dan menggunakan traktor tangan pada lebak dangkal dan lebak tengahan. Benih berasal dari perbanyakan sendiri  (40 kg/ha). Varietas Ciherang dan IR-42 digunakan dari musim ke musim tanam dengan pemupukan sesuai kemampuan petani. Dengan demikian, hasil yang diperoleh rendah, berkisar antara 3,5-4,5 t/ha GKP. Salah satu cara untuk memperbaiki produktivitas padi pada lahan lebak adalah penggunaan varietas unggul baru. Varietas Inpara dan Inpari dapat tumbuh dan berproduksi dengan baik pada lebak dangkal dan lebak tengahan. Pada lebak dangkal disarankan menggunakan varietas toleran kekeringan seperti Situbagendit, Limboto, Batutegi, Inpago, Inpari-1, Inpari-4, Inpari-6, dan Inpara-5. Pada lebak dalam, padi hanya dapat diusahakan satu kali dalam satu tahun, menggunakan varietas unggul pada musim kemarau panjang. Varietas unggul yang disarankan ialah Inpara-3, Inpara-4, dan Inpara-5 yang toleran rendaman.</p><p>Kata kunci: Padi, rawa lebak, varietas unggul, budi daya, adpatasi.</p>


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