scholarly journals Genotypic variability for grain quality attributes in restorer lines of hybrid rice

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 973-989
Author(s):  
Jamil Hasan ◽  
Umma Kulsum ◽  
Rani Majumder ◽  
Umakanta Sarker
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Hybrid Rice ◽  
Cooking Time ◽  
Grain Weight ◽  
Restorer Line ◽  
Strong Positive Correlation ◽  
Thousand Grain Weight ◽  
Head Rice ◽  
Recovery Percentage

Twenty-six restorer line were selected for evaluation for genetic variability, heritability and genetic association among physicochemical, nutritional, yield and yield contributing traits in randomized complete block design (RCBD) with three replications. The analysis showed that restorer line has milling rice percentage, head rice recovery percentage, cooking time, elongation ratio, amylase content and protein content with average value among 26 genotypes (64.60%, 73,00%, 16.67 min, 1.38, 19.26% and 6.36% respectively). Highest grain yield was obtained from the restorer line 3038R (15.99 g/plant), followed by BRRI20R (14.83 g/plant), PR828R (14.10 g/plant), PR312R (13.91 g/plant), BRRI31R (13.61 g/plant) and BRRI19R (13.28 g/plant). The line BRRI20R and BRRI31R had high (25.00%) amylase and protein content, milling rice percentage, head rice recovery percentage. F2277R had less (14.00 min) cooking time. Grain yield exhibited a strong positive correlation with head rice recovery percentage, amylase content and thousand grain weight. Insignificant genotypic correlation was observed among physicochemical, nutritional, yield related traits and grain yield. Most of the studied traits indicating that selection with these traits might be possible without compromising any yield loss. Based on mean, range, genetic parameters, correlation coefficient and path coefficient values, direct selection through five traits i.e., head rice recovery percentage, cooking time, amylase content, protein content and thousand grain weight would significantly improve the grain yield of restorer line. Some of these restorer lines can be used for development of hybrid rice regarding these physicochemical, nutritional quality and yield related traits.

scholarly journals Effects of location and year on technological quality and pentosan content in rye

2009 ◽  
Vol 27 (No. 6) ◽  
pp. 418-424 ◽  
Author(s):  
J. Kučerová
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Specific Weight ◽  
Grain Weight ◽  
Falling Number ◽  
Thousand Grain Weight ◽  
The Czech Republic ◽  
Hybrid Variety ◽  
Weight Protein ◽  
Technological Quality

Four year trials were undertaken to study the milling and baking rye quality, the hybrid variety Picasso and population varieties Dankowskie nowe and Selgo having been examined coming from three different locations of the Czech Republic. The variety significantly (<i>P</i> < 0.01) influenced the specific weight, grain size, amylograph maximum, and grain yield. The year of harvest significantly (<i>P</i> < 0.01) influenced the thousand grain weight, maltose content, protein content, amylograph maximum, and grain yield. The location significantly (<i>P</i> < 0.01) influenced the thousand grain weight, protein content, amylograph maximum, and grain yield. The highest pentosan content (average of the four years and three locations) was achieved by the hybrid variety Picasso (8.04%), which had the highest Falling number (232 s) as well as amylograph maximum (597 AU). The location Hradec nad Svitavou proved to be the best (8.02% pentosans) while the year 2005 (8.34% pentosans) was the most positive. A positive correlation (<i>P</i> < 0.05) was found between the pentosan content and the Falling number.

Assessment of Variability of Foxtail Millet [Setaria italica (L.) Beauv.] Genotypes

2020 ◽  
Vol 7 (2) ◽  
pp. 51-61
Author(s):  
Manoj Kandel ◽  
Suk Gurung ◽  
Narayan Dhami ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Morphological Traits ◽  
Foxtail Millet ◽  
Leaf Length ◽  
Grain Weight ◽  
Panicle Length ◽  
Thousand Grain Weight ◽  
Leaf Blast ◽  
Days To Maturity

Analysis of genetic diversity and variability is an initial step for crop development in a plant breeding program. Thirty foxtail millet genotypes were evaluated for their ten agro-morphological traits viz. grain yield, days to heading, days to maturity, plant height, leaf length, leaf width, number of nodes per tiller, panicle length, thousand-grain weight, and leaf blast during April to August season of 2018 at Kabre, Dolakha, Nepal. Clustering was done based on variability observed among the genotypes for all the ten traits by the average linkage method. The genotypes were grouped into six clusters. The shortest inter cluster distance between Cluster I and Cluster II was 17.63 and the longest was between Cluster IV and Cluster VI with 47.55. Cluster I had the maximum leaf blast score with the minimum leaf length. The Cluster II had the maximum grain yield and days to 50% heading and the number of nodes per tiller. The Cluster III was characterized by the maximum leaf length and leaf blast value. The genotypes grouped into the Cluster IV were characterized by the lowest value of days to 50% heading and 80% days to maturity and those of Cluster V had the maximum thousand-grain weight. The genotypes categorized into Cluster VI had the maximum plant height, leaf length, and panicle length. Cluster II and Cluster V were good because of their agro-morphological traits. The presence of a high level of diversity among the genotypes indicated their suitability for selection in crop breeding programs. Correlation analysis of genotypes having the maximum panicle length leaf area and higher plant height and shorter maturity period are pre-requisite for improvement in grain yield.

Yield and Stability for agronomic and seed quality traits of common bean genotypes under Mediterranean conditions

2019 ◽  
Author(s):  
A. Kargiotidou ◽  
F. Papathanasiou ◽  
D. Baxevanos ◽  
D.N. Vlachostergios ◽  
S. Stefanou ◽  
...  
Keyword(s):  
Common Bean ◽  
Protein Content ◽  
Seed Yield ◽  
Seed Quality ◽  
Local Population ◽  
Genetic Material ◽  
Cooking Time ◽  
High Yield ◽  
Strong Positive Correlation ◽  
Mediterranean Countries

Common bean is the most significant pulse in Mediterranean countries and high yield performance is required to become commercially successful. Seven common bean genotypes were evaluated for yield and stability along with their interrelationship with agronomical, physicochemical and quality characteristics. An analysis of variance was conducted to test main effects and interactions between plant traits and environments. Significant variation among genotypes occurred for seed yield and a strong positive correlation was observed between seed yield and pods m-2. High Genetic Coefficient of Variation (GCV) values combined with high heritability for traits as seed yield, cooking time, hydration capacity and protein content were recorded. The GGE biplot analysis indicated two cultivars as superior genotypes that combine high yield, stability, short cooking time and high protein content. Furthermore, a local population assessed as promising genetic material for the selection of elite lines with high yield and short cooking time.

Effect of nitrogen and zinc on yield, protein content and quality of wheat in Egypt

1976 ◽  
Vol 87 (2) ◽  
pp. 451-454 ◽  
Author(s):  
S. A. M. Youssef ◽  
A. Y. Abdel-Rahman
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Plant Height ◽  
Nitrogen Fertilization ◽  
Kernel Weight ◽  
Grain Weight ◽  
Spike Length ◽  
Weight Protein ◽  
Linear Manner

SummaryGrain yield, plant height, spike length, grain weight per spike, 100-kernel weight, protein quantity and quality of Mexipak wheat grown with four rates of applied nitrogen (0, 75, 150 and 225 kg N/ha) and five rates of applied zinc (0, 1·25, 2·5, 5·0 and 7·5 kg Zn/ha) were measured. All these attributes were affected significantly by nitrogen fertilization in a linear manner. Differences among rates of applied zinc were significant for grain weight per spike, 100-kernel weight, grain yield and protein quantity and quality.

scholarly journals Genetic Dissection of Yield Determinants in Advance Breeding Lines (ABLs) of Rice (Oryza sativa L.) under Irrigated Condition of Chhattisgarh, India

2021 ◽  
pp. 119-131
Author(s):  
Pramod Noatia ◽  
Abhinav Sao ◽  
Ajay Tiwari ◽  
S. K. Nair ◽  
Deepak Gauraha
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Seed Weight ◽  
Harvest Index ◽  
Amylose Content ◽  
Breeding Lines ◽  
Head Rice ◽  
Kernel Length ◽  
Days To Maturity ◽  
Recovery Percentage

The present study was undertaken to study the extent of genetic variability, character association and path analysis in 53 irrigated late duration breeding lines for 12 quantitative and 10 quality parameters. Analysis of variance revealed the presence of significant variation among the breeding lines for all the characters except for total tillers per plant, effective tillers per plant, spikelet fertility percentage and grain yield per plant. The highest magnitude of PCV and GCV were displayed by grain yield per plant followed by harvest index, filled spikelet per panicle and 1000 seed weight. The greater extent of heritability in broad sense were recorded for days to maturity, days to 50% flowering, 1000 seed weight, plant height, total spikelet per panicle, kernel length, kernel L:B ratio, grain length, head rice recovery percentage, amylose content, hulling and milling percentage. However, high heritability coupled with high genetic advance as percent of mean were displayed by plant height, number of spikelet per panicle, filled spikelet per panicle,1000 seed weight, kernel length, kernel L:B ratio, grain length, head rice recovery percentage and amylose content. Grain yield per plant exhibited positive significant correlation with harvest index, effective tillers per plant, 1000 seed weight, spikelet fertility %, days to maturity and days to 50% flowering. Path analysis revealed direct effect on grain yield were exerted by days to 50% flowering followed by harvest index, 1000 seed weight, total tillers per plant, number of spikelet per plant, effective tillers per plant and plant height indicating their importance in rice breeding programs.

Multivariate statistical analysis of cold season wheat yield under drought conditions Alireza Razavi

2014 ◽  
Vol 2 (1) ◽  
pp. 50-59
Author(s):  
Alireza Razavi
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Cold Season ◽  
Grain Weight ◽  
Productivity Index ◽  
Drought Condition ◽  
Thousand Grain Weight ◽  
Biological Yield ◽  
Peduncle Length ◽  
Irrigation Levels

Effect of drought stress on cold season wheat varieties investigated at Jolgeh-rokh station of Torbat Heydarieh agricultural and resources research center during 2012 and 2013. The experiment contained 18 inbred lines and promised varieties studied in optimal and limited irrigation levels. Two separate complete randomized block designs with three replications were carried out. At limited irrigation level plants did not irrigated at dough stage and physiological maturity stage. Measured treats was: plant height, spike length, peduncle length, grains/spike, grain weight, thousand grain weight, spike weight, harvest index, grain and biological yield.  Results showed that Cold wheat 14 was the best variety in both irrigation levels. Grain yield significantly correlated with grain yield and biological yield at optimal condition. There was a positive correlation between biological yield peduncle weight and harvest index with grain yield at drought condition. Stepwise regression analysis showed that yield variation control by thousand grain weight, grains/spike and spike weight at optimal irrigation condition. Peduncle length was the only variable enters to regression model at drought condition. Peduncle length and weight had the highest indirect effect on yield as shown by path analysis. Factor analysis indicated that three factors accounted for about 80 percent of the total variation among characters. Investigating the drought susceptibility indices showed that mean productivity index and stress susceptibility index was the best in selecting tolerate varieties. 

scholarly journals Combining ability analysis for yield and yield contributing traits in maize (Zea mays L.)

2019 ◽  
Vol 44 (2) ◽  
pp. 253-259
Author(s):  
HZ Raihan ◽  
S Sultana ◽  
M Hoque
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Combining Ability ◽  
Gene Action ◽  
Diallel Cross ◽  
Grain Weight ◽  
Thousand Grain Weight ◽  
Additive Gene Action ◽  
Additive Gene ◽  
1000 Grain Weight

An experiment on combining ability was carried out with 21 crosses produced from 7×7 diallel cross without reciprocal for grain yield and yield contributing characters in maize. Analysis of variance for combining ability showed that mean square (MS) due to GCA & SCA were highly significant for all characters except GCA in plant height, cob length and 1000 grain weight and SCA in maturity and row/cob indicated that all but mentioned traits were governed by both additive and non-additive gene action. Variances due to GCA were higher for all characters except thousand grain weight revealed that the predominance of additive gene action for all characters except thousand grain weight. Parent CML 487 and Ki 21 were the best general combiner for yield and most of the yield contributing characters. Parent BMZ 57 & BMZ 15 were the best general combiner for dwarf & earliness in plant. Among all the crosses CML 473 × Ki 21, CML 487 × Ki 21 and CML 429 × BIL 182 exhibited significant positive SCA effect for grain yield. The cross CML 429 × BIL 182 may be considered as the best cross with recorded significant mean value and desired SCA for traits like 1000 grain weight, yield (t/ha), days to 50% pollen shedding, days to 50% silking, plant height, ear height and days to maturity. The promising single crosses with significant and positive SCA could be used for variety development after verifying them across locations. Bangladesh J. Agril. Res. 44(2): 253-259, June 2019

scholarly journals Study on Genotypic Response and Correlation Analysis of the Yield and Yield Attributing Traits of Different Barley (Hordeum Vulgare) Genotypes

2017 ◽  
Vol 4 (4) ◽  
pp. 529-536
Author(s):  
Deepak Vitrakoti ◽  
Sheetal Aryal ◽  
Santosh Rasaily ◽  
Bishnu Raj Ojha ◽  
Raju Kharel ◽  
...  
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Plant Height ◽  
Flag Leaf ◽  
Grain Weight ◽  
Spike Length ◽  
Thousand Grain Weight ◽  
Days To Flowering ◽  
Days To Heading ◽  
Peduncle Length

Barley, being a tremendous opportunities crop, we are far back regarding study, research and utilization. An experiment was conducted 2014-2015 to evaluate the barley genotypes for their yield attributing traits and correlation and causation. Eleven yield contributing traits viz., days to booting, heading and flowering; peduncle length, spike length, plant height, flag leaf area, flag leaf-1 area, thousand grain weight, biological weight and yield per hectare were recorded. High significant variation among genotypes was found for traits under study. Genotypes SBYT3-13#1115 (1960 kg), 14-SB-NAK-MR#17 (1760 kg) and AM POP#26 (1660 kg) were found to be superior for their per se performance based on grain yield per hectare, yield attributing and other quantitative traits. Thousand grains weight (0.333) had positively highest significant correlation with grain yield per hectare followed by spike length (0.310). Grain yield per hectare showed negative highly significant correlation with days to flowering (-0.796) followed by days to heading (-0.761) and days to booting (-0.663). Peduncle length (0.229), plant height (0.226), biological weight (0.181) and flag leaf area (0.032) were positively correlated with grain yield per hectare while flag leaf-1 area(-0.029) was negatively correlated. Thus, selection for genotypes with higher thousand grain weight and spike length accommodating earlier days to flowering, heading and booting is a prerequisite for attaining improvement in grain yield per hectare.Int J Appl Sci Biotechnol, Vol 4(4): 529-536

scholarly journals Evaluating the performance of some Primitive Wheat Triticum dicoccum Genotypes

Food Biology ◽  
1970 ◽  
pp. 23-27
Author(s):  
Maysoun M. Saleh ◽  
Dyab S. Moussa ◽  
Nader I. Alkaraki ◽  
Abbas Lateef Abdurahman
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Growing Season ◽  
Grain Weight ◽  
Individual Plant ◽  
Thousand Grain Weight ◽  
Breeding Programs ◽  
Triticum Dicoccum ◽  
Rainfed Conditions ◽  
Superior Genotypes

Seven wheat genotypes (Triticum dicoccum) and the local check sham5 variety were planted during  growing season 2010/2011under rainfed conditions using RCBD with three replications. Yield components (number of total and fertile tillers, number and weight of grains per spike, weight of thousand grain and individual plant grain yield) were studied in two sites in order to define the differences between the studied genotypes in both sites and to provide the superior genotypes for breeding programs. Results showed that the genotype PW70 was significantly superior in (grain yield, number and weight of grain per spike) comparing to check. While, the genotypes (PW96, PW119, PW123) were significantly superior in thousand grain weight comparing to check, as well as the genotype (PW81, PW127) were significantly superior in total and fertile tillers number comparing to check. Most traits were significantly superior in Al-Ghab site.

scholarly journals Genetic Variability And Character Associations In Irrigated Rice (Oryza Sativa L)

1970 ◽  
Vol 23 (2) ◽  
pp. 23-28 ◽  
Author(s):  
S Ghosal ◽  
PL Biswas ◽  
M Khatun ◽  
S Khatun
Keyword(s):  
Oryza Sativa ◽  
Genetic Variability ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Grain Weight ◽  
Path Coefficient ◽  
Genetic Advance ◽  
Thousand Grain Weight ◽  
Growth Duration ◽  
Irrigated Rice

Eighteen advanced breeding lines were evaluated for yield and yield contributing characters to observe their variability, associations and direct and indirect effect on yield during Boro season, 2009. All the tested characters showed significant variation. Effective tillers/m2 and spikelet sterility (%) had high genotypic variance, high heritability, high genetic advance and high genotypic coefficient of variation. Effective tillers/m2, panicle length (cm), thousand grain weight (g) and growth duration (days) showed significant positive association with grain yield. Path coefficient analysis also revealed that effective tillers/m2, thousand grain weight (g) and growth duration (days) had higher direct effects on yield (t/ha). All together with the genetic variability, correlation and path analysis revealed that effective tillers/m2, thousand grain weight (g) and growth duration (days) are the most important yield components in rice. Therefore, from the present study it could be suggested that emphasize should be given on these characters for the selection of genotypes for higher grain yield in irrigated rice.   Keywords: Rice (Oryza sativa L.); GCV; PCV; heritability; genetic advance; correlationDOI: http://dx.doi.org/10.3329/bjpbg.v23i2.9321 Bangladesh J. Pl. Breed. Genet., 23(2): 23-27, 2010

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