scholarly journals Stability Study For Growth Duration And Grain Yield Of Exotic Hybrid Rice Genotypes In Bangladesh

1970 ◽  
Vol 36 (1) ◽  
pp. 97-102
Author(s):  
PL Biswas ◽  
HN Barman ◽  
S Ghosal ◽  
S Tohiduzzaan ◽  
M Hazrat Ali
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Hybrid Rice ◽  
B Value ◽  
Stability Study ◽  
Growth Duration ◽  
Stability Parameters ◽  
Minimum Deviation ◽  
Days To Maturity ◽  
Rice Genotypes

Twenty eight rice genotypes were evaluated for their stability in respect of grain yield and growth duration during boro season of 2007-08 over five locations viz. Gazipur, Jamalpur, Comilla, Jinaidhah, and Rajshahi. Variances for genotypes, locations, and G × E interactions were significant for both the traits. Linear components of G × E interactions were insignificant but non- linear components (pooled deviation) were significant. Considering stability parameters (bi and S2 di) for days to maturity, genotypes Raja, Ropa-1, and Sera were least responsive to environment (bi =1) and minimum deviation from regression (S2 di = 0) were stable over the locations. The estimates of stability parameters for grain yield revealed that the genotypes Ropa-1, SL-8, Lily and Sera were higher grain yielder, b value were close to the unity and S2di value were near to the zero. So, these four genotypes could be considered as the most stable over the environments. Considering both growth duration and grain yield based on stability parameters, the genotypes Ropa and Sera were identified as most stable and could be recommended for release as varieties.   Key words: Hybrid rice; stability; exotic. DOI: http://dx.doi.org/10.3329/bjar.v36i1.9233 BJAR 2011; 36(1): 97-102

Phosphorus fertilization in inbred and hybrid rice

1970 ◽  
Vol 19 (2) ◽  
pp. 181-187
Author(s):  
MR Islam ◽  
PK Saha ◽  
SK Zaman ◽  
MJ Uddin
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Hybrid Rice ◽  
Phosphorus Fertilization ◽  
Phosphorus Fertilizer ◽  
Yield Difference ◽  
P Balance ◽  
Rice Genotypes ◽  
Boro Rice

Five phosphorus rates (0, 5, 10, 20 and 30 kg P/ha) were tested with four rice genotypes in Boro (BRRI dhan36, BRRI dhan45, EH1 and EH2) and T. Aman (BRRI dhan30, BRRI dhan49, EH1 and EH2) season. Phosphorus rates did not influence grain yield irrespective of varieties in T. Aman season while in Boro season P response was observed among the P rates. Application of P @ 10 kg/ha significantly increased the grain yield. But when P was applied @ 20 and 30 kg P/ha, the grain yield difference was not significant. The optimum and economic rate of P for T. Aman was 20 kg P/ha but in Boro rice the optimum and economic doses of P were 22 and 30 kg/ha, respectively. Hybrid entries (EH1 and EH2) used P more efficiently than inbred varieties. A negative P balance was observed up to 10 kg P/ha. Key words: Response; Phosphorus fertilizer; Inbred; Hybrid rice DOI: http://dx.doi.org/10.3329/dujbs.v19i2.8962 DUJBS 2010; 19(2): 181-187

scholarly journals Stability of hybrid rice genotypes for grain yield and maturity

2018 ◽  
Vol 43 (1) ◽  
pp. 99-108
Author(s):  
MJ Hasan ◽  
MU Kulsum ◽  
E Hossain ◽  
NMF Rahman
Keyword(s):  
Grain Yield ◽  
Hybrid Rice ◽  
High Yield ◽  
Environment Interaction ◽  
Variable Response ◽  
Growth Duration ◽  
Positive Interaction ◽  
Rice Varieties ◽  
Ecological Zones ◽  
Rice Genotypes

An experiment was conducted using nine hybrid rice genotypes along with two inbred standard check varieties in five different locations of Bangladesh to assess their stability in terms of grain yield and maturity in diverse environments. For this, adaptability, stability, genotype × environment (G×E) interaction effect for grain yield and maturity of 11 rice varieties in five agro ecological zones in Bangladesh were assessed during T. Aman season of 2015. The analysis of variance for growth duration and grain yield (t/ha) for genotypes, environment and genotype-environment interaction were highly significant at 1% level of probability indicating the variable response of genotypes and environments. The hybrid genotypes IR79156A/BRRI20R, BRRI hybrid dhan3, BRRI33R/BRRI26R, BRRI hybrid dhan4, standard check variety BRRI dhan49 and BR11 had high yield performance and widely adapted to all environments and these were non sensitive to environmental interactive forces, while the hybrids BRRI7A/BRRI31R, IR79156A/BasmatiR and SL-8 were sensitive to environmental interaction. Environment such as Gazipur (E1) and Faridpur (E3) having positive IPCA1 score and positive interaction with the hybrids BRRI7A/BRRI13R, SL-8H and IR79156A/BasmatiR were considered as the favourable environments for these hybrids.Bangladesh J. Agril. Res. 43(1): 99-108, March 2018

scholarly journals Genotype-environment interaction and stability analysis of four fine rice varieties

2012 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
P L Biswas ◽  
U K Nath ◽  
S Ghosal ◽  
A K Patwary
Keyword(s):  
Stability Analysis ◽  
Plant Height ◽  
Environmental Changes ◽  
Environment Interaction ◽  
Panicle Length ◽  
Rice Varieties ◽  
Stability Parameters ◽  
Panicle Number ◽  
Days To Maturity ◽  
Rice Genotypes

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  

scholarly journals Korelasi Hasil dan Komponen Hasil Padi Hibrida di Dua Lokasi Pengujian

2017 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Nita Kartina
Keyword(s):  
Grain Yield ◽  
Selection Criteria ◽  
Hybrid Rice ◽  
Block Design ◽  
Yield Component ◽  
Path Coefficient ◽  
Central Java ◽  
Randomized Complete Block Design ◽  
Rice Genotypes ◽  
Materials Used

<p>One of the objectives in rice breeding is to increase grain yield. The research was to evaluate numbers of hybrid rice genotypes and also to obtain the information about grain yield correlation main, grain yield component from numbers of hybrid rice genotypes and influencial character as selection criteria. The experiment conducted in the second season (MT II) of 2013 at Cilacap, Central Java province and in Malang, East Java province by using Randomized Complete Block Design (RCBD) with four replications. The genetic materials used were 18 hybrid rice genotypes and two check varieties namely Hipa8 and Ciherang. The results showed that grain yield had been effected by location, genotypes and both interactions. Hipa8 give yield average 9 t/ha while Ciherang 8.78 t/ha. There were two hybrid rice genotypes have equal yield statitistically with both check varieties. The hybrids were A7/BH25B-1B(9.13 t/ha) and IR58025A/CRS516 (9.15 t/ha). Based on path analysis numbers of empty grain, seed set, plant high and number of productive tillers have direct effect to yield with path coefficient of 0.0437; 0.3114; 0.,1952 and 1.931.These characters could be used as selection criteria.</p>

scholarly journals Genotype and environment interaction of drought tolerant rice genotypes evaluated in drought prone areas of Bangladesh

2016 ◽  
Vol 14 (1) ◽  
pp. 23-30
Author(s):  
RR Majumder ◽  
TR Hore ◽  
MA Kader ◽  
TL Aditya
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Principal Component ◽  
Field Trials ◽  
High Yield ◽  
Environment Interaction ◽  
Growth Duration ◽  
Yield Data ◽  
Wide Range ◽  
Rice Genotypes

Field trials were conducted using ten rice genotypes including four national and international check varieties under drought prone rainfed environments of Rangpur, Nilphamari, Kurigram and Lalmonirhat districts of Bangladesh in Transplant Aman 2012 season to evaluate the growth duration and grain yield stability as well as adaptability. The experiment used randomized complete block design with three replications. Growth duration and Grain yield data were subjected to Additive Main effects and Multiplicative Interaction (AMMI) analysis. The mean growth duration of 10 genotypes over four environments showed that the longest growth duration was found for IR83383-B-B-129-4 (115.6 days) and the lowest growth duration was found for BRRI dhan56 (Ck) (113.4 days). IR82635-B-B-145-1 produced maximum 4.28 t/ha grain yield followed by 4.28 t/ha in IR82589-B-B-84-3 and the lowest grain yield was recorded for IR83376-B-B-130-2 with 3.24 t/ha. It was evident from the AMMI 1 biplot analysis that IR83377-B-B-93- 3, IR83383-B-B-129-4, IR82635-B-B-145-1, IR82635-B-B-75-2 and BRRI dhan56 (Ck) generally exhibited high yield with high main (additive) effects showing positive first principal component of the interaction (IPCA1), but IR82635-B-B-145-1 being the overall best. Hence, IR82635-B-B-145-1 was identified as specially adapted to Lalmonirhat and this environment was considered as the wide range suitable environment for the genotype. Lalmonirhat could be regarded as a good selection site for rice improvement due to stable yields. IR83377-B-B-93-3, IR82635-B-B-145-1, IR83383-B-B-129-4, IRRI 123 (Ck), BRRI dhan57 (Ck) and BINA dhan7 (Ck) were hardly affected by the G × E interaction and would perform well across a wide range of environments. In AMMI 2 biplot, IR82635-B-B-145-1 and IRRI 123 (Ck) was more responsive since they were away from the origin whereas other genotypes were nearer to the origin and hence they were more stable to different environments. IR83383-B-B-129-4 was very close to the origin, so it was more stable to different environments. Similarly Rangpur Sadar and Lalmonirhat showed similar potentiality over IR83383-B-B-129-4. The study it revealed that IR83377-B-B-93-3, IR83383-B-B-129-4, IR82635-B-B-145-1, IR82635-B-B-75-2 and IR82589-B-B-84-3 has the potentiality to show drought tolerance for the regions and might be suitable for releasing as a variety after conducting proper yield evaluation trials and Distinction, Uniformity and Stability (DUS) tests.J. Bangladesh Agril. Univ. 14(1): 23-30, June 2016

scholarly journals Identification of Ideal Trial Sites and Wide Adaptable T. Aus Rice Genotypes Suitable for Bangladesh

2020 ◽  
Vol 23 (2) ◽  
pp. 77-85
Author(s):  
M Khatun ◽  
MME Ahmed ◽  
MA Syed ◽  
F Akter ◽  
S Das ◽  
...  
Keyword(s):  
Grain Yield ◽  
Grain Quality ◽  
Height Growth ◽  
Gge Biplot ◽  
Average Yield ◽  
Growth Duration ◽  
New Variety ◽  
Trial Site ◽  
Rice Genotypes ◽  
Discriminating Ability

GGE biplot study is an effective tool for many crops including rice to identify mega-environments, ideal trial site and suitable genotypes for general and specific adaptation. An attempt was made to find promising T. Aus rice genotypes having suitable grain quality, better agronomic parameters and ideal test location for T. Aus rice growing areas. In this study, a total of 11 promising genotypes along with two popular cultivars BR26 and BRRI dhan48 were tested across six locations; Cumilla, Gazipur, Rajshahi, Rangpur in T. Aus 2016 and 2017 whereas Habiganj and Kushtia only in T. Aus 2017 season. From GGE biplot study, BRRI RS, Rajshahi (E8) was the most discriminating and ideal location for evaluating T. Aus rice genotypes in Bangladesh condition while BRRI RS, Cumilla 2016 (E1) showed the least discriminating ability and the least representative location. From two years combination data, BR9011-19-1-2 (G6) recorded the highest average grain yield (5.11±0.68 t ha-1) but BR9011-46-2-2 (G2) was the most stable genotype having grain yield (4.97±0.62 t ha-1) and other stable genotypes with above average yield were BR9011-67-4-1 (G5), BR9011-34-3-2 (G1), BRRI dhan48 (G13), BR9039-28-3-2 (G9) and BR9039-9-1-3 (G8) indicated that these genotypes adapted to favourable environments. BR26 (G12) was found highly variable and less stable across the test environments. In addition, agronomic trait (plant height, growth duration) and grain quality traits were also considered for suitability and wider adaptation in T. Aus growing areas in Bangladesh. BR9011-46-2-2 (G2) and BR9011-19-1-2 (G6) were the better genotypes in most of the locations but, considering all of the parameters, the newly developed rice breeding line BR9011-67-4-1 (G5) has been identified as suitable genotype to release as a new variety for sustainable T. Aus rice production in Bangladesh. Bangladesh Rice j. 2019, 23(2): 77-85

scholarly journals Adaptation of Promising Rice Genotypes for Broadcast Aus Season

2020 ◽  
Vol 23 (2) ◽  
pp. 35-48
Author(s):  
B Karmakar ◽  
MAA Mamun ◽  
MS Rahman ◽  
MA Islam ◽  
MR Islam ◽  
...  
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Management Practices ◽  
Block Design ◽  
Maturity Stage ◽  
Growth Duration ◽  
Spikelet Sterility ◽  
Ecological Zones ◽  
Check Variety ◽  
Rice Genotypes

Rice cultivation in Aus season is eco-friendly and essential for sustainable food security of Bangladesh utilizing rain water rather than extracting underground water. Four rice genotypes (BR6855-3B-12, BR6855-3B-13, BR6848-3B-12 and BR6976-2B-11-1) along with check variety BRRI dhan43 were evaluated at farmers’ field during broadcast Aus season. The objectives were to investigate the adaptability of the rice genotypes and find out promising genotype(s) for Broadcast Aus rice. The experiment was conducted at farmers’ field in eight agro-ecological zones of Bangladesh. Randomized complete block design (RCB) was used with three replications. Standard and uniform management practices were followed for all the locations. Data were taken on grain yield, days to 80% maturity, plant height, panicles m-2, 1000-grain weight, grains panicle-1, spikelet sterility (%), Phenotypic acceptance at vegetative and maturity stage, pest incidence; feedback of farmers and extension personnel. Genotypes, environments and interaction of genotypes by environments had significant effect on grain yield, yield components and agronomic parameters. Analysis of variance indicated that there were significant differences between the check (control) and improved genotypes except the genotype BR6976-2B-11-1 which was similar with the check BRRI dhan43 for all parameters. Correlation analysis was also performed to establish extent of association between yield and major yield components. Grain yield positively and significantly correlated with the agronomic parameters except spikelet sterility. Across the locations, BR6848-3B-12 produced significantly the highest grain yield (4.88 t ha-1) at Feni while the lowest grain yield (1.58 t ha-1) was obtained in BR6976-2B-11-1 followed by BRRI dhan43 (1.64 t ha-1) at Kushtia. BR6848-3B-12 showed yield advantage of 1.0 t ha-1 over the check variety BRRI dhan43 with similar growth duration (104 day). AMMI stability value, yield stability index and GGE Bi-plot model indicated that BR6855-3B-12 is the most adaptable, suitable and stable genotype for broadcast Aus rice across the locations, and finally it is released in 2017 as BRRI dhan83 for broadcast Aus season. Bangladesh Rice j. 2019, 23(2): 35-48

scholarly journals Genetic Diversity Analysis in Exotic Hybrid Rice Genotypes Grown During Wet Season in Bangladesh

2016 ◽  
Vol 13 (2) ◽  
pp. 89-96
Author(s):  
A Ahmed ◽  
S G Shaon ◽  
M S Islam ◽  
P S Saha ◽  
M A Momin
Keyword(s):  
Genetic Diversity ◽  
Hybrid Rice ◽  
Growth Parameters ◽  
Block Design ◽  
Wet Season ◽  
Growth Duration ◽  
F1 Hybrid ◽  
Mean Values ◽  
Rice Genotypes ◽  
Almost All

Two experiments were conducted with 43 IRRI developed F1 hybrid rice genotypes  (HRDC) for ten agronomic characters in a randomized complete block design to study the genetic diversity through multivariate analysis in Gazipur and Pabna districts, respectively during wet season 2013. On the basis of D2 values, the genotypes were grouped into five different clusters. During wet season, cluster III comprised maximum number of genotypes (15). The data obtained across locations showed that there are significant differences among HRDC genotypes for all growth parameters, yield and yield components. The highest yield (5.65 t ha-1) was observed in HRDC 1341 because of produced heaviest panicle (4.28 g) and the lowest (2.48 t ha-1) in HRDC 1311 because of obtained lowest fertility (49.9 %) and 1000-grain wt. (12.9 g), respectively. The maximum inter-cluster distances were observed between cluster I and V (11.63) and the minimum between cluster III and IV (2.35). The highest intra-cluster distance (1.73) was observed in cluster III and minimum in cluster I (0.00), since it consisted with one genotype. Difference in cluster means existed for almost all the characters studied. Among the characters, growth duration, spikelet panicle-1, fertility (%) and 1000-grain wt contributed the most for divergence in the genotypes. The highest mean values for fertility percentage, panicle weight and 1000 grain wt. but early flowering and short maturing genotypes were grouped into Cluster II followed by Cluster III and IV indicating that the genotypes have genetic potentiality to contribute better for yield maximization of hybrid rice.The Agriculturists 2015; 13(2) 89-96

scholarly journals Study on phenology and yielding ability of Basmati fine rice genotypes as influenced by planting date in aman season

1970 ◽  
Vol 34 (3) ◽  
pp. 373-384 ◽  
Author(s):  
MA Mannan ◽  
MSU Bhuiya ◽  
SMA Hossain ◽  
MIM Akhand
Keyword(s):  
Grain Yield ◽  
Planting Date ◽  
Basmati Rice ◽  
Yield Potential ◽  
High Yield ◽  
Lower Percentage ◽  
Growth Duration ◽  
Spikelet Sterility ◽  
Rice Genotypes ◽  
High Yield Potential

The experiment was conducted at the Bangladesh Rice Research Institute Farm, Gazipur in Aman season to determine the optimum time of planting and to find out the genotypes having high yield potential. Fine rice genotypes Basmati PNR, Basmati 370, Basmati 375, and Basmati-D were transplanted from 22 July and continued upto 7 October at an interval of 15 days both in 1999 and 2000. Thirty-day old seedlings were transplanted at a spacing of 20 cm x 15 cm. The tallest plant was found in the early-planted crop at maturity. Crop planted from 7 August to 7 September gave more number of tillers per m2, panicles per m2 and grains per panicle which resulted in higher grain yield. Compared to the 22 August planting, grain yield decreased by 11, 10, 10, 26, and 61 percent, respectively, when the crop was planted on 22 July, 7 August, 7 September, 22 September, and 7 October. The growth duration of the genotypes decreased with the advancement of planting date. Among the genotypes, Basmati PNR gave maximum grain yield followed by Basmati-D due to more number of panicles and lower percentage of spikelet sterility. The lower grain yield was found in Basmati 370 irrespective of planting date due to lower number of panicles and high percentage of spikelet sterility. The Basmati PNR matured 5-12 days earlier than the rest of the test genotypes. Thus, fine rice Basmati PNR and Basmati-D were most suitable to obtain higher grain yield when planted within 17-21 August. Key Words: Basmati rice, time of planting, Aman season. DOI: 10.3329/bjar.v34i3.3962 Bangladesh J. Agril. Res. 34(3) : 373-384, September 2009

Evaluation of rice genotypes for its response to added fertility levels and induced drought tolerance during reproductive phase

2018 ◽  
Vol 5 (01) ◽  
Author(s):  
LAXMI P. KHAREL ◽  
SURYA KANT GHIMIRE ◽  
JIBAN SHRESTHA ◽  
CHITRA BAHADUR KUNWAR ◽  
SUBARNA SHARMA
Keyword(s):  
Grain Yield ◽  
Biomass Yield ◽  
Agricultural Research ◽  
Field Research ◽  
Research Station ◽  
Drought Tolerant ◽  
Panicle Number ◽  
Days To Maturity ◽  
Rice Genotypes ◽  
Different Levels

A field research was carried out at agronomy field at Regional Agricultural Research Station, Khajura, Banke, Nepal from June to November 2012-2013 in order to evaluate drought tolerant rice genotypes under different nutrient levels in artificially created stress condition during reproductive stages. The field experiment was conducted in strip plot design with three replications. Three main-plots contain three different levels of fertilizers, each consisting of 14 subplots of genotypes. The result revealed that the rice genotypes showed the significant differences for days to flowering, days to maturity and grain yield. Genotype IR83381-B-B-137-1 produced the highest grain yield (3851 kg ha-1), followed by IR83383-B-B-141-2 (3130 kg ha-1). The differences was significant for no. of tillers hill -1, no. of panicles hill-1 and biomass yield kg ha-1. In terms of level of fertilizers; rice genotypes showed significant differences for days to maturity. Interaction effect was observed significant for days to maturity and no. of panicles. The correlation between tillers number hill-1 and panicle number hill-1 was the highest (0.994**) and in path analysis for grain yield; direct effect of biomass yield was the highest (0.58134).

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