scholarly journals Study on yield potentiality and spatial requirement of rice varieties (Oryza sativa L.) in system of rice intensification (SRI) under red and laterite zone of West Bengal, India

2015 ◽  
Vol 7 (1) ◽  
pp. 353-357
Author(s):  
Kalyan Jana ◽  
G. K. Mallick ◽  
S. Ghosh ◽  
G. Sardar
Keyword(s):  
Grain Yield ◽  
Conventional Method ◽  
West Bengal ◽  
Oryza Sativa L ◽  
Block Design ◽  
Rice Cultivation ◽  
System Of Rice Intensification ◽  
Research Station ◽  
Rice Varieties ◽  
Rice Intensification

Field experiment was conducted at Rice Research Station, Bankura during kharif season 2009 and 2010 to study the yield potentiality and spatial requirement of rice varieties in system of rice intensification (SRI) under red and laterite zone of West Bengal. The experiment was laid out in a randomized complete block design (RCBD) in a three replications with two rice varieties (Swarna and Lalat). Performances of swarna and lalat varieties in SRI as compared to conventional method of rice cultivation (CMRC) were investigated. Swarna (MTU 7029) has yielded maximum grain yield (6.07, 5.66 and 5.86 t ha-1 during 2009, 2010 and in pooled, respectively) from the treatment T7 (25 × 25 cm spacing) under SRI. Lowest grain yield (3.55, 3.23 and 3.38 t ha-1 during 2009, 2010 and in pooled, respectively) was recorded from treatment T9 (Lalat at 20 × 15 cm spacing) under CMRC. SRI technology has potential in increasing more grain yield, it saves seed requirement and irrigation water and chemical fertilizer considering than conventional method of cultivation. Rice cultivation is more sustainable and profitable for the farmers in SRI under the red and laterite zone of West Bengal.

scholarly journals Effect of dates and methods of winter rice (Oryza sativa L.) transplanting on relayed niger (Guizotia abyssinica) and soil health

2019 ◽  
Author(s):  
Anju Mala Deka ◽  
P. C. Bora ◽  
H. Kalita ◽  
A. S.N. Zaman ◽  
Pompi Saikia
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Conventional Method ◽  
Oryza Sativa L ◽  
Rice Cultivation ◽  
System Of Rice Intensification ◽  
Guizotia Abyssinica ◽  
Relay System ◽  
Yield Attributes ◽  
Available N

A field experiment was conducted to study the effect of dates of transplanting under different methods of cultivation on productivity of winter rice (Oryza sativa L.) and their effect on rice-niger (Guizotia abyssinica) relay system at Regional Agricultural Research Station, Shillongani Nagaon, Assam during kharif-rabi seasons in the year 2014-15 and 2015-16. Rice transplanted on 20 June recorded significantly higher yield attributes and grain yield of rice (59.19 q/ha) as compared to the later dates of transplanting, and it was followed by 5 July- transplanted rice. Transplanting on 20 June resulted in higher values in respect of yield attributes, yield of relayed niger, rice equivalent yield (REY) of rice- niger relay system (75.68 q/ha), NPK uptake by rice and niger as well as soil fungal and bacterial population after harvest of rice and niger. System of Rice Intensification (SRI) recorded significantly higher value of yield attributes and grain yield of rice (60.34q/ha) as compared to conventional method. In case of relayed niger, yield attributes, seed yield and REY were found higher under SRI method of rice cultivation. Under SRI method, higher uptake of NPK by rice and niger and higher soil fungal and bacterial populations after harvest of rice and niger were observed as compared to conventional method. However, conventional method of rice cultivation recorded significantly higher values of soil available N, P2O5 and K2O content at the end of two year-crop cycle over that of SRI.

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.

scholarly journals Productivity, water use efficiency and economics of system of rice intensification (SRI) in Nichabanadhi sub basin of southern Tamil Nadu

2017 ◽  
Vol 9 (1) ◽  
pp. 286-290
Author(s):  
M. Paramasivan ◽  
A. Selvarani
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Conventional Method ◽  
Tamil Nadu ◽  
Rice Cultivation ◽  
System Of Rice Intensification ◽  
Yield Attributes ◽  
Rice Intensification ◽  
Use Efficiency

Four hundred and sixteen on-farm demonstrations on system of rice intensification (SRI) were carried out in 350 hectares of farmer’s fields in Sankarankovil, Vasudevanallur and Kuruvikulam blocks of Tirunelveli district of Tamil Nadu from 2008-09 to 2010-11 under Tamil Nadu – Irrigated Agriculture Modernization and Water Bodies Restoration and Management (TN-IAMWARM) project. Two methods viz., SRI and conventional were compared. The results revealed that the adoption of SRI favorable influenced yield attributes and yield of rice. The maximum grain yield (8222 kg ha-1) obtained from SRI which was higher than conventional method (6534 kg ha-1). Higher grain yield coupled with substantial water saving to the tune of 37.1 per cent resulted in higher water use efficiency of rice under SRI method. The best net income ( Rs. 50, 587) and benefit: cost ratio (3.64) were also associated with SRI than conventional method of rice cultivation. The cost of cultivation was comparatively lesser in SRI which re-sulted in gaining an additional income of Rs. 8080 ha-1 as compared to conventional method of rice cultivation. The system of rice intensification (SRI) proved its benefits in this basin.

scholarly journals Performance of Two Rice (Oryza sativa L.) Genotypes Under Modern and Conventional Farming Methods in Three Locations in Iraq

2021 ◽  
Vol 910 (1) ◽  
pp. 012067
Author(s):  
Abdulkadhim Jawad Musa ◽  
Saddam Hussein Abbas ◽  
Khidhir Abbas Hameed
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Cropping System ◽  
System Of Rice Intensification ◽  
Chemical Pollution ◽  
Rice Varieties ◽  
Rice Intensification ◽  
Rice Season ◽  
Jasmine Rice ◽  
South Of Iraq

Abstract The conservation of natural resources like soil and water and reduces chemical pollution in the environment is the desired goal of the directions of improving the performance of important crops for meeting the global food demand. However,System of Rice Intensification (SRI), is a rice cropping system that is consistent with Conservation Agricultural (CA) and Sustainable Agriculture (SA). The current study was aimed to investigate the effects of SRI method on grain yield and its components in two rice varieties compared with conventional practice in farmers' fields (CFM) in different environmental conditions in Iraq. The study was conducted in the fields during the rice season 2019 in three provinces in the south of Iraq (Najaf, Diwaniya and Muthanna). Anber33 and Jasmine rice varieties were grown in each location and the traits were conducted at sites having 2 donum of land (5,000 m2).The trial was performed as a factorial experiment based on a randomized complete blocks design (RCBD) having three blocks. The results showed superior significant of SRI method compared to CFM method in traits (plant height and panicle length, number per panicle, and percentage of unfilled grains). Furthermore, SRI method gave higher grain yield as a percentage with both varieties in each province (25.6% in Muthanna, 24.5% in Najaf, and 13.2% in Diwaniya province) compared to CFM. However, grain yield in Jasmine variety was higher than on Anber33 approximately 50% in three locations in this study. Overall, our results suggest that SRI method is the most convenient method in Iraq conditions due to the increased grain yield in rice compared to the CFM method.

scholarly journals Performance of Two Rice (Oryza Sativa L.) Genotypes Under SRI and Conventional Farming Methods in Three Locations in Iraq

2021 ◽  
Vol 910 (1) ◽  
pp. 012138
Author(s):  
Abdulkadhim Jawad Musa ◽  
Saddam Hussein Abbas ◽  
Khidhir Abbas Hameed
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Cropping System ◽  
System Of Rice Intensification ◽  
Chemical Pollution ◽  
Rice Varieties ◽  
Rice Intensification ◽  
Rice Season ◽  
Jasmine Rice ◽  
South Of Iraq

Abstract The conservation of natural resources like soil and water and reduces chemical pollution in the environment is the desired goal of the directions of improving the performance of important crops that to meet the global food demand. However System of Rice Intensification (SRI), is a rice cropping system that is consistent with Conservation Agricultural (CA) and Sustainable Agriculture (SA). The current study was aimed to investigate the effects of SRI method on grain yield and its components in two rice varieties compared with conventional practice in farmers' fields (CFM) in different environmental conditions in Iraq. Study was conducted in the fields during the rice season 2019 in three provinces in south of Iraq (Najaf, Diwaniya and Muthanna ). Anber33 and Jasmine rice varieties were grown in each location and the traits were conducted at sites having two donum of land (5,000 m2). The trial was performed as factorial expriments based on a randomized complete blocks design (RCBD) having three blocks. The results showed superior significant of SRI method compared to CFM method in traits (plant height and panicle length, number per panicle and percentage of unfilled grains). Furthermore, SRI method gave higher grain yield as percentage with both varieties in each province (25.6% in at Muthanna, 24.5% in Najaf and 13.2% in Diwaniya province) compared to CFM. However, grain yield in Jasmine variety was higher than on Anber33 approximately 50% in three locations in this study. Overall, our results suggest that SRI method is the most convenient method in Iraq conditions due to the increased grain yield in rice compared to the CFM method.

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 Effect of Crop Establishment Methods on the Performance of Boro Rice (Oryza sativa L.) in the Cooler Region under Light Texture Soil Condition

2010 ◽  
pp. 95-100
Author(s):  
ABS Sarker ◽  
MB Rahman ◽  
R Yasmeen ◽  
MA Islam ◽  
SMM Islam
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Rice Variety ◽  
Soil Condition ◽  
System Of Rice Intensification ◽  
Growth Duration ◽  
Crop Establishment ◽  
Rice Intensification ◽  
1000 Grain Weight ◽  
Boro Rice

An experiment was conducted at the Bangladesh Rice Research Institute regional station, Rangpur to investigate the performances of different establishment methods of Boro rice; variety BRRI dhan29 in light texture soil during Boro 2004-05 and 2005-06 seasons. Five crop establishment methods were tested in a randomize complete block design with three replications. The methods were: 1. Conventional transplanting method 2. System of Rice Intensification (SRI) method, 3. Farmers practice, 4. Seedling throwing method and 5. Direct-Wet Seeded Rice(DWSR) using drum seeder method. Grain yield was influenced by different crop establishment methods in both the seasons. The highest mean grain yield was obtained by BRRI recommended conventional transplanting method (6.27 t ha-1) followed by SRI method (5.70 t ha-1). The highest number of panicles m-2 was obtained from wet DSR by drum seeder method (341 m-2). Effectiveness of tiller (92%) was obtained from the SRI method. The largest number of filled grains per panicle (76) was obtained from the SRI method. The highest 1000-grain weight (23.2 g) was obtained by the farmer’s method. Less sterility was occurred (30 %) from farmer’s methods. The highest growth duration (175 days) was observed in farmer method. But the highest field duration of BRRI dhan29 (145 days) was observed in wet DSR using dream seeder.

scholarly journals Rajdeep (IET 17713): A New Rainfed Lowland High Yielding Rice Variety for Semideep Situation

2021 ◽  
Author(s):  
Indrani Dana ◽  
Sitesh Chatterjee
Keyword(s):  
West Bengal ◽  
Insect Pests ◽  
Oryza Sativa L ◽  
Rice Variety ◽  
National Level ◽  
Stem Borer ◽  
Research Station ◽  
Wet Season ◽  
Rice Varieties ◽  
Improvement Project

In eastern India, more than 13.0 million ha of rice lands are affected by excess water and periodically suffer from flash floods and complete submergence. Most of the traditional and adapted rice varieties of this situation are low yielders. To overcome these problems the high yielding rice variety (HYV), Rajdeep (IET 17713) has been developed by Rice Research Station, Government of West Bengal, Chinsurah, Hooghly as high yielding rice variety for semideep water situation. Field experiment was conducted to evaluate the performance of promising semideep water rice (Oryza sativa L.) genotypes under lowland situation during wet season of 2002-2013. Performance of Rajdeep, semideep water rice was better and therefore it was released. It is tolerant to sheath blight, sheath rot diseases and stem borer, leaf folder insect-pests. The high yielding semideep rice variety, Rajdeep exhibited superiority over national check (Sabita), regional check (Purnendu) and local check tested in different locations under All India Coordinated Rice Improvement Project (AICRIP) trials during kharif, 2002-2003 conducted by ICAR-Indian Institute of Rice Research, Hyderabed, India. This variety was also tested in multi-locational yield trials (2003-2013) along with check variety Swarna-Sub 1/ Bhudeb at different locations of West Bengal. After testing at national level as well as at state level, based on yield performance of the variety, the HYV semideep rice variety Rajdeep was released and notified by Government of India in the Gazette of India vide Notification No. S.O. 1007(E) on 30th March, 2017.

scholarly journals Identification of promising high yielding blast resistant rice genotype for hilly conditions of Karnataka

2019 ◽  
Vol 56 (4) ◽  
pp. 375-379
Author(s):  
GN Hosagoudar ◽  
Sheshaiah
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Blast Resistance ◽  
Block Design ◽  
Research Station ◽  
Pooled Data ◽  
Resistance Trait ◽  
Resistance Reaction ◽  
Check Variety ◽  
On Farm

Rice (Oryza sativa L.) is one of the most important food crops from which nearly one third of world's population derives its principal source of calories. The experiment was conducted to discover the impending genotypes suitable for hilly situation of Karnataka. The experimental materials were chosen or selected based on significant superiority or on par yield over the local check variety, i.e., Tunga in the AICRIP investigational trials of paddy. The chosen entries were evaluated for the three years in the station trial at the Agricultural and Horticultural Research Station, Ponnampet in randomized complete block design with two replications during 2016, 2017 and 2018 kharif seasons. Third year Multi Location Trial (MLT) was also conducted at AHRS, Ponnampet and ZAHRS, Mudigere. The pooled data across the years in the station trial revealed that the entry IET-24451 recorded the utmost grain yield (6196 kg/ha) among the entries and gave up 36 per cent increased grain yield over the Tunga and 17 per cent increased grain yield over the KPR-1. The pooled data of MLT across the locations revealed that the entry IET-25281 recorded the utmost grain yield of 6076 kg/ha with 11 per cent increased grain yield over the Tunga and 13 per cent increased grain yield over the KPR-1. The combined pooled data of station trial across the years and MLT trial across locations revealed that the entry, IET-24451 of 6135 kg/ha recorded the maximum grain yield followed by IET-25281 (5970 kg/ha) among the entries. The entry IET-24451 recorded 22 per cent increased grain yield over the Tunga and 15 per cent increased grain yield over the KPR-1, whereas the entry IET-25281 recorded 19 per cent increased grain yield over the Tunga and 12 per cent increased grain yield over the KPR-1 and both the entries IET-24451 and IET-25281 recorded the leaf and neck blast resistance reaction in the Uniform Blast Nursery Screening Pattern. Hence, the entry IET-24451 was recommended for on-farm trial due to its blast resistance trait and yield superiority across the years and the locations.

scholarly journals Optimizing Potassium Application for Hybrid Rice (Oryza sativa L.) in Coastal Saline Soils of West Bengal, India

Agronomy ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 292 ◽  
Author(s):  
Hirak Banerjee ◽  
Krishnendu Ray ◽  
Sudarshan Dutta ◽  
Kaushik Majumdar ◽  
Talatam Satyanarayana ◽  
...  
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
West Bengal ◽  
Hybrid Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Rice Variety ◽  
Saline Soils ◽  
Optimum Level ◽  
High Potassium

The present study assesses the response of hybrid rice (variety Arize 6444) to potassium (K) application during rainy (wet) seasons of 2016 and 2017 in coastal saline soils of West Bengal, India. The study was conducted at the Regional Research Farm, Bidhan Chandra Krishi Viswavidyalaya, Kakdwip, West Bengal. The soil is clayeywith acidic pH (5.91), saline (Electrical conductivity/EC 1.53 dS m−1) and of high K fertility (366 kg ha−1). The experimental plots were laid out in a randomized complete block design with five (5) K treatments (0, 30, 60, 90, and 120 kg K2O ha−1) with four replications. Plant height, dry matter (DM) in different plant parts, number of tillers, and grain yield were measured in each treatment for the determination of optimum K dose. The study revealed that the stem, leaf, and grain dry matter production at 60 days after transplanting (DAT) and harvest were significantly (p ≤ 0.05) higher at 90 kg K2O ha−1 application. The number of tillers hill−1 was also higher (p ≤ 0.05) in plants fertilized with 90 kg K2O ha−1 over K omission. At harvest, grain K concentration improved (p ≤ 0.05) with K fertilization at 90 kg K2O ha−1, 116% more than the zero-K. Omission of K application from the best treatment (90 kg K2O ha−1) reduced grain yield by 3.5 t ha−1 even though the available K content was high. Potassium uptake restriction due to higher Mg content in the soil may have caused reduced uptake of K leading to yield losses. The present study also showed higher profits with 90 kg K2O ha−1 with higher net returns (US$ 452 ha−1) and benefit:cost ratio (1.75) over other treatments from hybrid rice (var. Arize 6444). From the regression equation, the economic optimum level of K (Kopt) was derived as 101.5 kg K2O ha−1 that could improve productivity of hybrid rice during the wet season in coastal saline soils of West Bengal.

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