scholarly journals Yield and morpho physical characters of some modern aus rice varieties at Khagrachari

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Sushan Chowhan ◽  
Md. Khan Jahan Ali ◽  
Kamrun Nahar ◽  
Md. Moshiur Rahman ◽  
Md. Ibrahim Ali ◽  
...  
Keyword(s):  
Block Design ◽  
Small Scale ◽  
Rice Varieties ◽  
Morphological Attributes ◽  
Local Cultivars ◽  
Farming Community ◽  
Randomized Complete Block Design ◽  
Significant Area ◽  
Significant Comparison ◽  
Short Time

Aus, aman and boro are three rice cultivating seasons in Bangladesh. Among these aus is the least cultivated and grown in comparatively small scale due to prevailing drought and less availability of surface water for irrigation. Modern varieties of aus rice cover a significant area of the country conversely local cultivars cover a small area. Aus rice requires much fewer inputs than aman and boro. Due to continuous declination of groundwater level, nowadays more emphasis is given on the extension of aus cultivation throughout the country. The present field study tested yield and morphological attributes of six developed aus rice varieties viz. Binadhan-14, Binadhan-19, BRRI dhan43, BRRI dhan48, BRRI dhan55 and BRRI dhan65 to characterize yield, maturity and phenological properties. The field trial was set at Satvaiyapara of Khagrachari during 2018 following Randomized Complete Block design with dispersed plots. All data were collected at harvest and analysed statistically by Statistix 10. Findings revealed that statistically highest grain yield was produced from BRRI dhan55 (4.49 t/ha) and BRRI dhan48 (4.48 t/ha); the lowest by BRRI dhan65 (3.06 t/ ha). The yield of Binadhan-19 (4.37 t/ha) and Binadhan-14 (3.87 t/ha) was intermediate. In case of maturity, Binadhan-19 (99.33 days) had the shortest life duration and BRRI dhan48 (113.67 days), the longest. The greater portion of the farmers was keen to grow Binadhan-19 and Binadhan-14 instead of BRRI dhan43 and BRRI dhan48 mainly for its short duration, optimal yield, long and slender quality grain. Binadhan-19 might be a promising aus variety in the Khagrachari hill tracts for gaining favourable yield within a short time. Therefore, further studies are needed in jhum cultivation with local cultivars for more significant comparison and acceptability to the rice farming community.

scholarly journals Adjusting planting time of Binadhan-17 in boro season

2021 ◽  
pp. 21-27
Author(s):  
Shampa Rani Ghosh ◽  
Sushan Chowhan ◽  
Snigdha Roy ◽  
Dinesh Chandra Roy ◽  
Md. Khan Jahan Ali ◽  
...  
Keyword(s):  
Block Design ◽  
Field Trials ◽  
Morphological Data ◽  
Main Field ◽  
Short Life ◽  
Rice Varieties ◽  
Nitrogenous Fertilizer ◽  
Sowing Dates ◽  
Randomized Complete Block Design ◽  
Disease Free

Boro rice (grown in winter under irrigated condition) contributes to the major portion of rice production (over 50%) in Bangladesh. Binadhan-17 is a green super rice developed by BINA which requires 30% less nitrogenous fertilizer and water which is grown in aman season (primely produced under rainfed). Due to it’s increasing popularity and adoption rice growers are keen to cultivate it in boro season also. Taking account of the above situation, two field trials were conducted at Magura during November 2019 to May 2020 to investigate the effect of variety, sowing dates and their interaction. Factorial RCBD (Randomized Complete Block Design) was applied for experimentation. Two rice varieties: Binadhan-17 (V1), BRRI dhan58 (V2) and three sowing times: 30th November (T1), 10th December (T2), 20th December (T3) were used as treatments. 35 days old seedlings were transplanted in main field. Relevant agronomic and morphological data were statistically analyzed through Statistix 10.0. Combined effect of the above factors at farm exposed that, T1×V1 required longest days (159.33 days) to mature. but, comparatively short life cycle (149.97 days) was observed by T3×V2. Maximum grain was yielded (7.70 t/ha) by T2×V1 and minimum (5.74 t/ha) by T1×V1 treatment combination. Outcomes of on station revealed that, T1×V1 needed more days (158.00 days) to mature; conversely, alike duration was noted with T2×V2 (147.20 days) and T3×V2 (145.43 days) which matured quite earlier. T2×V1 produced the highest grain yield (7.41 t/ha) and T1×V2 the lowest (5.94 t/ha). Our results indicate that, planting of Binadhan-17 on 10th December may give insect-disease free grains with optimum yield in context of Magura region. Farmers will be financially benefited if they cultivate this variety in the boro season in lieu of aman; due to higher yield

scholarly journals COMPARISON OF YIELD AMONG DIFFERENT HIGH YIELDING VARIETIES OF WETLAND RICE

Agric ◽  
2021 ◽  
Vol 33 (1) ◽  
pp. 57-66
Author(s):  
Kiki Kusyaeri Hamdani ◽  
Yati Haryati
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Yield Component ◽  
Yield Potential ◽  
Duncan Multiple Range Test ◽  
Rice Varieties ◽  
Randomized Complete Block Design ◽  
High Yielding Varieties ◽  
Range Test ◽  
Better Than

New superior varieties (VUB) are a reliable technological innovation to increase rice productivity. This study aims to determine the yield potential of some lowland rice VUB. The assessment was carried out on land owned by a member of the Sumber Rejeki Farmer Group, Cintaratu Village, Lakbok District, Ciamis Regency at Dry Season II in June-September 2020. The study used a randomized complete block design (RCBD) with six varieties of treatment and was repeated ten times. The varieties tested were Inpari 32, Inpari 42, Padjadjaran, Cakrabuana, Inpari IR Nutrizinc, and Siliwangi varieties. The variables observed included the growth component, yield component, and yield component. Data were analyzed using the F test followedby the Duncan Multiple Range Test at the Q=5% level. In addition, a correlation test was conducted between the growth components, yield components, and yields. The results of the study indicated that the new superior rice varieties studied had different performance in growth, number of tillers, yield, and yield components. Inpari 42 variety produced the highest productivity, namely 6.88 ton ha-1 which was supported by the number of grains per panicle, percentage of filled grains per panicle, and percentage of empty grain per panicle which were better than other varieties. Plant height and number of grains per panicle were positively correlated with yield.

scholarly journals Effect of planting density on yield and yield attributes of local aromatic rice varieties

2018 ◽  
Vol 43 (3) ◽  
pp. 489-497
Author(s):  
J Halder ◽  
GM Rokon ◽  
MA Islam ◽  
N Salahin ◽  
MK Alam
Keyword(s):  
Block Design ◽  
Grain Weight ◽  
The Other ◽  
Planting Density ◽  
Aromatic Rice ◽  
Rice Varieties ◽  
Yield Attributes ◽  
Straw Yield ◽  
Randomized Complete Block Design ◽  
1000 Grain Weight

An experiment was conducted at the Agronomy Field of Patuakhali Science and Technology University, Dumki, Patuakhali from June to December, 2013 to find out the effect of variety and planting density on the yield and yield attributing characters of local aromatic rice. The experiment was laid out in a factorial randomized complete block design with three replications, which consisted of three local aromatic rice varieties (Chinigura, Shakhorkhora and Kalizira) and four planting densities were viz. S1 (25 cm × 20 cm), S2 (20 cm × 20 cm), S3 (20 cm × 15 cm) and S4 (20 cm × 10 cm). The results revealed that the local aromatic rice var. Shakhorkhora variety produced the highest number of grains per panicle (131) and 1000-grain weight (13.8 g), consequently higher grain (2.63 t ha-1), followed by Kalizira (2.56 t ha-1) and straw yield (4.21 t ha-1). One the other hand, higher number of tillers per hill (14.8), number of grains per panicle (140 nos.) were found in 20 cm × 20 cm spacing with higher grain yield.Bangladesh J. Agril. Res. 43(3): 489-497, September 2018

Pengaruh Baja Nitrogen (N) dan Kalium (K) Terhadap Padi Varieti MR 269 dan MR 284 di Sungai Nibong (PBLS)

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Ahmad Arif Ismail ◽  
Ismail Che Haron ◽  
Wan Zaki Wan Mamat ◽  
Muhammad Naim Fadzli Abd. Rani
Keyword(s):  
Significant Interaction ◽  
Rice Yield ◽  
Block Design ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Rice Varieties ◽  
Fertilizer Recommendation ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
K Fertilizer

An experiment to study influence of nitrogen (N) and potassium (K) on new rice varieties MR 269 and MR 284 has been carried out in Parit 12 Sungai Nibong, Sekinchan, 45400, Sabak Bernam, Selangor from February 2012 to January 2013. Compatibility tests need to be carried out on current fertilizer recommendation towards these new rice varieties. There are three rates used in this experiment which are 0, 100 and 200 kg/ha for both N and K fertilizer. The experimental design used in this experiment is Randomized Complete Block Design (RCBD) with 3 replications. A set of 54 small plots were erected with 4 m x 4 m in size. Manual Teknologi Penanaman Padi Lestari is used as crop management guideline for this experiment. Results indicated no significant interaction between N and K on yield of the newly tested rice varieties. The rice yield was significantly affected by N but not by K. Results suggest that there is significant interaction between cropping season and N towards rice yield. Analysis showed that fertilizer application of N up to 200 kg/ha contributed to higher yield in first season (Off-season). However, yield increment in season 2 (main season) only took place up until N fertilizer application at 100 kg/ha and began to drop when subsequent additional of 200 kg/ha. This study indicated that number of panicle and number of seed per panicle had positive influence to the rice yield.

scholarly journals Uji Multilokasi Sepuluh Galur Padi Untuk Menghasilkan Varietas Unggul Baru

2020 ◽  
Vol 18 (3) ◽  
pp. 175
Author(s):  
Jaenudin Kartahadimaja ◽  
Eka Erlinda Syuriani
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Yield Potential ◽  
High Yield ◽  
Rice Varieties ◽  
Randomized Complete Block Design ◽  
Soil Stress ◽  
Main Plot ◽  
Plot Design ◽  
High Yield Potential

Reduced productive rice fields to non-paddy fields, most possible extension of the nationalrice cultivation area to the suboptimal lands reaching ± 91.9 million ha. Technologypackages that can be applied include the use of new improved rice varieties through theassembling of varieties that have high yield potential, resistant to suboptimal soil stress. Theobjective of the research is to produce new superior rice varieties that are available invarious environments. The study used a split-plot design, as the main plot is an environmentconsisting of rice paddies and gogo, as a subplot is the genotype of rice. The treatment ineach environment is prepared using the Randomized Complete Block Design (RCBD). Thetreatment consisted of 10 new rice strains and four varieties as a comparison. Variablesobserved (1) plant height; (2) the maximum number of shoots; (3) number of productiveshoots; (4) long panicle; (5) the number of grains per panicle; (6) the amount of graincontent of each panicle; (7) the number of empty grains per panicle; (8) weight of 1000grains of grain; (9) grain yield of each clump; (10) grain yield per hectare. Data wereanalyzed by variance if there was a difference between mean, median treatment, followed byLsd test at 5% level. The adaptability and yield stability of each strain was determined basedon the value of the coefficient of diversity (KK) (Francis and Kenneberg, 1978) in Syukur etal., (2012). The results showed that seven new rice strains had adaptations both planted asupland rice and lowland rice, namely strains B3, B4, F2, F3, H1, H4, and L2.

scholarly journals IDENTIFICATION OF WIDE COMPATIBILITY VARIETIES IN SOME TROPICAL JAPONICA RICE

2013 ◽  
Vol 6 (1) ◽  
pp. 28 ◽  
Author(s):  
A. Hairmansis ◽  
Hajrial Aswidinnoor ◽  
Trikoesoemaningtyas Trikoesoemaningtyas ◽  
Suwarno Suwarno
Keyword(s):  
Hybrid Rice ◽  
Block Design ◽  
Hybrid Sterility ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Major Barrier ◽  
F1 Hybrid ◽  
Tropical Japonica ◽  
Wide Compatibility ◽  
Randomized Complete Block Design

The F1 hybrid sterility in indica/japonica crosses is the major barrier in developing hybrid rice varieties between these two diverse germplasm. The sterility problem in japonica/indica hybrids can be overcome by using wide compatibility genes. The objective of this study was to identify wide compatibility varieties (WCVs) in some tropical japonica rice. Twenty five tropical japonica varieties as male parents were crossed with indica (IR64) and japonica (Akitakomachi) testers as female parents. The crosses were planted following a randomized complete block design with three replications. Varieties having average spikelet fertility of more than 70% with both the indica and japonica testers were rated as WCVs. Result from this study showed that six tropical japonica varieties were classified as WCVs, i.e., Cabacu, Grogol, Kencana Bali, Klemas, Lampung Lawer, and Napa. Hybrid sterility is caused by partial sterility of male and female gametes. The WCVs from the present study can be used in hybrid rice breeding program to solve hybrid sterility in indica/japonica hybrids.

scholarly journals Adaptabilitas Varietas Inpara di Lahan Rawa Pasang Surut Tipe Luapan Air B pada Musim Kemarau

2017 ◽  
Vol 45 (2) ◽  
pp. 117
Author(s):  
Koesrini , ◽  
Muhammad Saleh ◽  
Dan Siti Nurzakiah
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Rice Farming ◽  
Type B ◽  
Marginal Lands ◽  
Rice Varieties ◽  
Tidal Swamp ◽  
Randomized Complete Block Design ◽  
Agricultural Research And Development

Tidal swamp lands are marginal lands with considerable potentials for rice farming. The key solution to overcome swampy lands constraints are nutrient and water managements as well as the use of adaptive rice varieties. Inpara (inbred swampy land rices) varieties have been released by the Indonesian Agency for Agricultural Research and Development (IAARD) which are adaptive to swampy land conditions. The purpose of this research was to evaluate the adaptability of Inpara varieties in tidal swamp lands with type B overflow. The field experiment was carried out in Karang Bunga village, Barito Kuala District, South Kalimantan Province, in the  dry season  from April to August 2016. The research was arranged in randomized complete block design, with 3 replicates. The varieties tested, i.e., Inpara 1, 2, 3, 4, 5, 6, 7, 8, 9, and check varieties Margasari, Ciherang, and Mekongga. The results showed that the adaptability varied among varieties tested. Inpara 3, 4, 6, 8, and 9 had high yield and good adaptation on tidal swamp land yielded 3.475-4.299 ton ha-1. These varieties produced between 38.5 to 71.3% higher than Margasari and 51.4 to 87.2% higher than Mekongga. Inpara 3, 4, 6, 8, and 9 could be used as a main varieties in the tidal swamp lands.<br /><br />Keywords: rice, swampy land, variety

scholarly journals Recurrent selection in inbred popcorn families

2004 ◽  
Vol 61 (6) ◽  
pp. 609-614 ◽  
Author(s):  
Máskio Daros ◽  
Antônio Teixeira do Amaral Jr. ◽  
Messias Gonzaga Pereira ◽  
Fabrício Santana Santos ◽  
Ana Paula Cândido Gabriel ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Recurrent Selection ◽  
Agronomic Traits ◽  
Block Design ◽  
Genotype By Environment Interaction ◽  
Small Scale ◽  
Environment Interaction ◽  
Genotype By Environment ◽  
Randomized Complete Block Design ◽  
Superior Genotypes

Although much appreciated in Brazil, commercial popcorn is currently cropped on a fairly small scale. A number of problems need to be solved to increase production, notably the obtaintion of seeds with good agronomic traits and good culinary characteristics. With the objective of developing superior genotypes in popcorn, a second cycle of intrapopulation recurrent selection based on inbred S1 families was carried out. From the first cycle of selection over the UNB-2U population, 222 S1 families were obtained, which were then divided into six sets and evaluated in a randomized complete block design with two replications within the sets. Experiments were carried out in two Brazilian localities. The analysis of variance revealed environmental effects for all evaluated traits, except popping and stand, showing that, for most traits, these environments affected genotype behavior in different ways. In addition, the set as source of variation was significant for most of the evaluated traits, indicating that dividing the families into sets was an efficient strategy. Genotype-by-environment interaction was detected for most traits, except popping expansion and stand. Differences among genotypes were also detected (1% F-test), making viable the proposition of using the genetic variability in the popcorn population as a basis for future recurrent selection cycles. Superior families were selected using the Smith and Hazel classic index, with predicted genetic gains of 17.8% for popping expansion and 26.95% for yield.

scholarly journals Effect of Phosphorus Levels on Yield Components and Grain Yield of Two Nerica Varieties in Mwea

2019 ◽  
pp. 1-13
Author(s):  
Etabo Edung Mathew ◽  
N. K. Korir ◽  
J. P. Gweyi-Onyango
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Block Design ◽  
Grain Filling ◽  
Rice Farming ◽  
Rice Varieties ◽  
Randomized Complete Block Design ◽  
Grain Formation ◽  
1000 Grain Weight ◽  
Phosphorus Levels

Phosphorus is one macronutrient that commonly gets fixed and accumulates into soils after it has been in use for long, thus becoming readily unavailable to plants in subsequent years. Such scenario is ontological in Mwea where rice farming is practiced, yet this element is one main critical nutrient that plants cannot do without for they need it for root initiation, root development, photosynthesis, grain- formation, grain-filling, as well as yielding. In that view therefore, an experiment was undertaken in Mwea irrigation scheme with the aim of investigating on the influence of phosphorus levels on yield components and grain yield of Nerica 4 and 11. The experiment was laid out in a Randomized Complete Block Design in split-plot arrangement replicated thrice. Two rice varieties (Nerica 4 and Nerica 11) formed main plots and phosphorus levels (0 kg P/ha, 25 kg P/ha, 50 kg P/ha and 75 kg P/ha) formed split plots. Data was collected on appropriate parameters between week 4 and 19 after sowing at intervals of three weeks. Results demonstrated that phosphorus levels significantly influenced the 1000-grain weight and number of panicles in the tested varieties. Additionally, Grain yield mean variation was observed, where highest grain yield of 0.988 tons per hectare was produced in Nerica 4 on 50 kg P/ha in season 2, while least grain yield of 0.831 tons per hectare was still produced in the same variety on control in season 1, thus 50 kg P/ha on Nerica 4 is recommended for rice farming in Mwea. The study would be used as a body of guidelines and information for judicial, responsible, and promotion of prescribed application of phosphates in Nerica rice farming at planting for realization of higher yields between the two Nerica varieties (Nerica 4 and 11) in Mwea and with like agro ecological areas.

scholarly journals Performance of landrace and improved rice varieties under the system of rice intensification management in Bajhang District of Nepal

2014 ◽  
Vol 15 ◽  
pp. 1-10 ◽  
Author(s):  
Ram B Khadka ◽  
Hari P Acharya ◽  
Norman Uphoff
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
System Of Rice Intensification ◽  
Average Yield ◽  
Participatory Action ◽  
Rice Varieties ◽  
Yield Increase ◽  
Mountainous Regions ◽  
Randomized Complete Block Design ◽  
Rice Intensification

Participatory action research was conducted in Luinyata VDC of Bajhang district during main rice-growing season of 2012 to evaluate the effects of cultivation practices in rice varieties. The experiment was in factorial randomized complete block design, where two methods of cultivations: System of rice intensification (SRI) and conventional transplanting (CT) and 3 different varieties: Khumal-4, Thapachini and Hansaraj Basmati were evaluated. Data were collected on grain yield, number of tillers, panicle length and number of filled and unfilled grains per panicle. Results averaged across the three varieties showed significantly better crop performance with SRI practices: higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1. Among the varieties evaluated, the highest yield was achieved with the Thapachini (8.11tha-1) using SRI methods. Average yield increase across the three varieties with SRI practice was 70% compared CT. These results indicate the practical relevance of SRI principles for increasing rice production in mountainous regions of Nepal.

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