scholarly journals Genetic Variability Estimation and Frequency of Superior Progenies in Advance Breeding lines in desi cotton at two locations

2015 ◽  
Vol 10 (1) ◽  
pp. 313-317
Author(s):  
Bangaremma Wadeyar ◽  
T Kajjidoni
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Coefficient Of Variation ◽  
Agricultural Research ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seed Cotton Yield ◽  
Boll Weight ◽  
Seed Index

Two hundred and two progenies were evaluated at two locations viz., Agricultural Research Station, Annigeri and Main Agricultural Research Station, Dharwad to estimate genetic variability and to identify superior progenies for seed cotton yield, yield contributing and fibre quality traits. The analysis of variance revealed presence of sufficient variability in the material for seven traits at both locations. High phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) were recorded for number of bolls per plant and seed cotton yield per plant, while, moderate variability estimate was recorded for plant height and low PCV and GCV were noticed for boll weight, ginning out turn, seed index and lint index traits at both the locations. High heritability was observed for seed index exhibited 97 per cent with moderate genetic advance as percent mean (GAM) at both the locations. High GAM was observed for number of bolls per plant, seed cotton yield and plant height. Moderate GAM was noticed for boll weight and seed index traits at both locations. An attempt was made to identify superior progenies, maximum number of superior progenies were observed for seed cotton yield at Dharwad (33 progenies) followed by Annigeri (24 progenies).

scholarly journals Genetic variability and association between oil and economic traits for some new Egyptian cotton genotypes

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Sara E. I. Eldessouky ◽  
A. B. A. El-Fesheikawy ◽  
K. M. A. Baker
Keyword(s):  
Oil Content ◽  
Agricultural Research ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Breeding Programs ◽  
Seed Cotton Yield ◽  
Boll Weight ◽  
Cotton Genotypes ◽  
Seed Index

Abstract Background Cotton breeding programs mainly focus on improving cotton fibers, but less attention has been paid by breeders to cottonseed oil improvement. Breeding cottonseed for oil content has mainly depended on phenotypic information used to select varieties with high seed oil content. The purpose of this study was to evaluate some cotton genotypes regarding their oil content and other characters related to fiber yield, in order to select genotypes with high oil content and acceptable levels of the other characters. Seventeen different genotypes of cotton were used in this study. A two-year experiment was carried out at Sids Agricultural Research Station, Beni Suef, Egypt, during 2017 and 2018, using a randomized complete block design with six replications. Seed cotton yield, lint cotton yield, boll weight, seed index, embryo index, oil % and embryo oil index characters were recorded. Results The analysis of variance results showed highly significant differences among the genotypes for all the studied traits except boll weight in season 2017. The overall cotton embryo oil % ranged from 33.40 to 40.28 among the genotypes, while the overall cotton embryo oil index ranged from 1.79 to 2.47. Maximum cotton embryo oil % was noted by the genotypes 15 [{(G83 × G80) × G89} × Australian] and 8 [(G 91 × G90) × (G 85 × G 83)], while maximum cotton embryo oil index was noted by the genotype 13 [(G 91 × G 90) × G80]. The results showed positive correlations between seed cotton yield and lint cotton yield, seed index and embryo index, seed index and embryo index oil %, embryo index and embryo index oil %, and oil % and embryo index oil %. Conclusions It could be concluded that using seed or embryo oil percentages as criteria for differentiating genotypes according to their oil content is misleading and the best efficient measure is using the seed or embryo oil indices because they depend on weight basis. Also, Genotypes 13, 15 and 8 were the best genotypes regarding oil % and they could be used in breeding programs for cotton oil improvement.

scholarly journals Yield and some agronomic parameters of upland cotton as affected by planting dates

2020 ◽  
Vol 2 (1) ◽  
pp. 37
Author(s):  
Waqas Ahmed Lashari ◽  
Salma Naimatullah ◽  
Hamza Afzal
Keyword(s):  
Plant Height ◽  
Upland Cotton ◽  
Planting Date ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Planting Dates ◽  
Seed Cotton Yield ◽  
Average Maximum ◽  
Boll Weight

A field experiment was conducted at ICI Research Farm, Multan to evaluate the effect of different sowing dates on plant height, number of monopodia, number of sympodia, number of bolls per plant, boll weight, seed cotton yield kg/ha of two upland cotton varieties (ICI-2121 and ICI-2424) developed by ICI Pakistan Limited, Multan against a standard check variety IUB-2013 during 2019, and 2020 years.  These varieties were planted on 1st April, 15th April, 1st May, 15th May, 1st June, and 15th June, at ICI Cotton Research Station, 19-Kasi Vehari Road, Multan.  Results revealed that statistically highly significant differences in planting dates were observed for all the parameters studied except number of monopodial branches and boll weight which depicted non-significant differences. Regarding varieties and interaction between varieties and planting times, similar trend of statistical differences was observed. As regards to planting dates, generally, all the parameters under study showed their maximum performance when crop was planted on 1st May followed by 1st April planting date, whereas, minimum performance of the parameters was recorded when the crop was planted on 15th June followed by 1st June. Regarding varietal performance, on an average, maximum plant height (146cm) was observed in ICI-2121 followed by IUB-2013. Same trend of performance of varieties regarding number of monopodia and sympodia per plant was observed.  Regarding average number of bolls per plant in different varieties, it was observed that ICI-2121 produced maximum (32 bolls) followed by ICI-2424 (31 bolls) and IUB-2013 (28 bolls) irrespective of planting dates. The same trend of varietal performance regarding boll weight was recorded. When seed cotton yield (kg/ha) was evaluated, on an average of varieties, ICI-2121 produced maximum seed cotton yield (1228 kg/ha) followed by ICI-2424 and IUB-2013 which produced 1147 and 1046 kg/ha seed cotton yield respectively irrespective of planting dates. It was concluded that under agro-climatic conditions of Multan, 1st May planting date was evaluated as optimum cotton sowing time. Before or after 1st May, this study does not recommend growing cotton in this particular zone.  Among cotton varieties, ICI-2121 is recommended for sowing under this planting time being producing higher yields.

scholarly journals Heritability and correlation analysis of morphological and yield traits in genetically modified cotton

2020 ◽  
Author(s):  
Abdul Rehman ◽  
Nida Mustafa ◽  
Du Xiongming ◽  
Muhammad Tehseen Azhar
Keyword(s):  
Plant Height ◽  
Fiber Length ◽  
Fiber Strength ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Plant Seed ◽  
Seed Cotton Yield ◽  
Fiber Fineness ◽  
Boll Weight ◽  
Seed Index

Abstract Background Cotton is known for its fiber and it is grown in tropical and sub-tropical areas of the world. It has a significant role in GDP of Pakistan. Therefore, present two years research was conducted to estimate heritability and association among various yield contributing parameters of cotton. The selected genotypes of cotton were hybridized in green house of the department. The F 0 cotton seed along with parents were planted in the field conditions during May, 2018. The sowing of this experiment was completed in three replications followed by RCBD. The data was recorded at maturity for various agronomic traits including plant height, number of bolls per plant, number of sympodial branches per plant, seed cotton yield, boll weight, seed index, ginning out turn, fiber length, fiber strength, and fiber fineness. Level of significance of data was computed by ANOVA to assess the difference among cotton genotypes which was used for estimation of heritability and correlation analysis among the related traits. Results Association analysis revealed that seed cotton yield had significant positive relationship with plant height, number of bolls per plant, number of sympodial branches per plant, ginning out turn, staple length and fiber strength. Staple length and fiber strength were negatively linked with each other. Estimates of heritability were high for all observed traits except number of sympodial branches per plant and boll weight. Conclusion The parent IUB-222 was found best for plant height, number of bolls per plant, boll weight, ginning out turn, seed cotton yield and seed index. NIAB-414 and VH-367 were identified best parents for fiber length, strength and fineness. Among crosses NIAB-414 × IUB-222 was best for number of bolls per plant, seed index, seed cotton yield and fiber fineness. Whereas, cross NIAB-414 × CIM-632 was good for plant height. The combination of A555 × CIM-632 was best for number of sympodial branches per plant, boll weight, fiber length and strength. VH-367 × CIM-632 proved best for ginning out turn. The correlation results from this study would be helpful to breed cotton cultivars with good yield and quality characters. Broad sense heritability was high for all of parameters which provides the strong evidence that selection in early generations can improve the performance of these traits.

scholarly journals Heritability and correlation analysis of morphological and yield traits in genetically modified cotton

2020 ◽  
Author(s):  
Abdul Rehman ◽  
Nida Mustafa ◽  
Du Xiongming ◽  
Muhammad Tehseen Azhar
Keyword(s):  
Plant Height ◽  
Fiber Length ◽  
Fiber Strength ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Plant Seed ◽  
Seed Cotton Yield ◽  
Fiber Fineness ◽  
Boll Weight ◽  
Seed Index

Abstract Background: Cotton is known for fiber extraction and it is grown in tropical and sub-tropical areas of the world due to having hot weather. Cotton crop has a significant role in GDP of Pakistan. Therefore, the two-years research was conducted to estimate heritability and association among various yield contributing parameters of cotton, i.e., plant height, number of bolls per plant, number of sympodial branches per plant, seed cotton yield, boll weight, seed index, ginning outturn (GOT), fiber length, fiber strength, and fiber fineness. Results: Association analysis revealed that seed cotton yield had significant positive correlation with plant height, number of bolls per plant, number of sympodial branches per plant, ginning outturn (GOT), staple length and fiber strength. Staple length and fiber strength were negatively linked with each other. Estimates of heritability were high for all of the traits except number of sympodial branches per plant and boll weight.Conclusion: The parent IUB-222 was found to be the best for plant height, number of bolls per plant, boll weight, ginning outturn (GOT), seed cotton yield and seed index. The genotypes namely NIAB-414 and VH-367 were identified as the best parents for fiber length, strength and fineness. Among the crosses NIAB-414 × IUB-222 was the best for number of bolls per plant, seed index, seed cotton yield and fiber fineness, whereas, cross of NIAB-414 × CIM-632 was good for plant height. The combination of A555 × CIM-632 was the best for number of sympodial branches per plant, boll weight, fiber length and strength, and VH-367 × CIM-632 proved the best for ginning outturn (GOT).

scholarly journals Genetic variability for yield and fiber related traits in genetically modified cotton

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Adeela SAHAR ◽  
Muhammad Mubashar ZAFAR ◽  
Abdul RAZZAQ ◽  
Abdul MANAN ◽  
Muhammad HAROON ◽  
...  
Keyword(s):  
Plant Height ◽  
Coefficient Of Variation ◽  
Fiber Quality ◽  
Short Fiber ◽  
Quality Traits ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Fiber Quality Traits ◽  
Seed Cotton Yield ◽  
Seed Index

Abstract Background Cotton (Gossypium hirsutum L.) is grown for fiber and oil purposes in tropical and sub-tropical areas of the world. Pakistan is the 4th largest producer of cotton. It has a significant contribution in the GDP of Pakistan. Therefore, the present study was performed to assess the genetic variations and genetic diversity of yield and fiber quality traits in cotton and to analyze the associations present among them. Results Analysis of variance exhibited significant variation for all studied traits except total number of nodes and the height to node ratio. The phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all studied traits. Plant height, monopodial branches, total number of bolls, lint index, seed index, and seed cotton yield displayed high heritabilities in a broad sense with maximum genetic advance. Correlation analysis revealed that seed cotton yield had a significant positive association with plant height, the number of monopodial branches, the number of sympodial branches, ginning outturn (GOT), the number of bolls, seed per boll, seed index, uniformity index, the number of sympodial branches, reflectance, and seed index at the genotypic level while a significant positive relationship was observed with plant height, the number of sympodial branches, boll number, and GOT. Plant height, monopodial branches, GOT, boll weight, seeds per boll, and short fiber index exerted direct positive effects on seed cotton yield. The first 6 principal component analysis (PCs) out of the total fourteen PCs displayed eigenvalues (> 1) and had maximum share to total variability (82.79%). The attributes that had maximum share to total divergence included plant height, uniformity index, the number of sympodial branches, seed per boll, GOT, seed cotton yield, and short fiber index. Conclusion The genotype AA-802, IUB-13, FH-159, FH-458, and CIM-595 were genetically diverse for most of the yield and fiber quality traits and could be utilized for the selection of better performing genotypes for further improvement.

scholarly journals Heritability and correlation analysis of morphological and yield traits in genetically modified cotton

2020 ◽  
Author(s):  
Abdul Rehman ◽  
Nida Mustafa ◽  
Du Xiongming ◽  
Muhammad Tehseen Azhar
Keyword(s):  
Plant Height ◽  
Fiber Length ◽  
Fiber Strength ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Plant Seed ◽  
Seed Cotton Yield ◽  
Fiber Fineness ◽  
Boll Weight ◽  
Seed Index

Abstract Background Cotton is known for fiber extraction and it is grown in tropical and sub-tropical areas of the world due to having hot weather. Cotton crop has a significant role in GDP of Pakistan. Therefore, the two years research was conducted to estimate heritability and association among various yield contributing parameters of cotton i.e. plant height, number of bolls per plant, number of sympodial branches per plant, seed cotton yield, boll weight, seed index, GOT, fiber length, fiber strength, and fiber fineness. Results Association analysis revealed that seed cotton yield had significant positive correlation with plant height, number of bolls per plant, number of sympodial branches per plant, GOT, staple length and fiber strength. Staple length and fiber strength were negatively linked with each other. Estimates of heritability were high for all of the traits except number of sympodial branches per plant and boll weight. Conclusion The parent IUB-222 was found to be best for plant height, number of bolls per plant, boll weight, GOT, seed cotton yield and seed index. The genotypes namely NIAB-414 and VH-367 were identified as best parents for fiber length, strength and fineness. Among the crosses NIAB-414 × IUB-222 was best for number of bolls per plant, seed index, seed cotton yield and fiber fineness, whereas, cross of NIAB-414 × CIM-632 was good for plant height. The combination of A555 × CIM-632 was best for number of sympodial branches per plant, boll weight, fiber length and strength, and VH-367 × CIM-632 proved best for GOT.

scholarly journals Gene Action Studies in the Inheritance of Yield and Quality Attributing Traits in Diallel Cross of Cotton (Gossypium hirsutum L.)

2021 ◽  
Vol 9 (3) ◽  
pp. 105-109
Author(s):  
V. J. Zapadiya ◽  
Keyword(s):  
Plant Height ◽  
Block Design ◽  
F1 Hybrids ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Gene Effects ◽  
Partial Dominance ◽  
Seed Cotton Yield ◽  
Genetic Components

A field experiment was conducted to evaluate the 45 F1 hybrids derived from 10×10 half diallel fashion along with ten parents and one standard check GN.Cot.Hy-14 were sown in randomized block design with three replications during kharif -2017 at Cotton Research Station, Junagadh Agricultural University, Junagadh. The genetic components of variation were determined for 12 characters viz., days to 50% flowering, days to 50% boll opening, plant height (cm), number of monopodia per plant, number of sympodia per plant, number of bolls per plant, boll weight (g), seed cotton yield per plant (g), ginning percentage (%), seed index (g), lint index (g) and oil percentage (%).The estimate of the components of variation revealed significant results for both additive (D) as well as dominance effects (H1 and H2) for all the characters except plant height non-significant H2 component, but in majority of traits (except plant height, lint index) H1 was higher than D indicating dominance components were important in the inheritance of seed cotton yield and its components. The average degree of dominance (H1/D)1/2 was found to be more than unity for all the traits (except plant height, number of monopodia per plant and lint index indicating partial dominance) indicating over dominance. Asymmetrical distribution of positive and negative genes in the parents was observed for all the traits. High estimates of heritability in narrow sense was observed for days to 50% flowering, days to 50 % boll bursting, number of monopodia per plant, ginning percentage (%), lint index (g) and oil content (%) suggesting that selection based on these attribute would lead to rapid improvement. Due to preponderance of non-additive gene effects of seed cotton yield per plant and most of its component traits, heterosis breeding would also be practically feasible in cotton.

scholarly journals Mitigation of Osmotic Stress in Cotton for the Improvement in Growth and Yield through Inoculation of Rhizobacteria and Phosphate Solubilizing Bacteria Coated Diammonium Phosphate

2020 ◽  
Vol 12 (24) ◽  
pp. 10456
Author(s):  
Muhammad Majid ◽  
Muqarrab Ali ◽  
Khurram Shahzad ◽  
Fiaz Ahmad ◽  
Rao Muhammad Ikram ◽  
...  
Keyword(s):  
Stomatal Conductance ◽  
Osmotic Stress ◽  
Net Photosynthetic Rate ◽  
Plant Height ◽  
Photosynthetic Rate ◽  
Diammonium Phosphate ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seed Cotton Yield ◽  
Boll Weight

Cotton (Gossypium hirsutum L.) is one of the major fiber crops. Its production is under threat due to scarcity of water resources under a changing climatic scenario. Limited water availability also decreases the uptake of phosphorus, and less uptake of phosphorus can deteriorate the quality attributes of cotton fiber. There is a need to introduce bio-organic amendments which can mitigate osmotic stress on a sustainable basis. Inoculation of rhizobacteria can play an imperative role in this regard. Rhizobacteria can not only improve the growth of roots but also enhance the availability of immobile phosphorus in soil. That is why the current experiment was conducted to explore and compare the efficacy of sole application of diammonium phosphate (DAP) over plant growth-promoting rhizobacteria (PGPR) and phosphorus solubilizing bacteria (PSB) coated DAP on growth and quality attributes of cotton under artificially induced osmotic stress at flowering stage. The impact of phosphorus levels was found to be significant on the plant height, leaf area, average boll weight, stomatal conductance, net photosynthetic rate, and seed cotton yield, while the irrigation effect was significant on all the parameters. The PGPR coated phosphorus performed better as compared to other treatments under normal irrigation and osmotic stress. Results showed that PGPR coated phosphorus increased by 29.47%, 21.01%, 41.11%, 32.73%, 15.63% and 22.89% plant height, average boll weight, stomatal conductance, net photosynthetic rate, fiber length, and seed cotton yield respectively. In conclusion, PGPR coated DAP can be helpful to get higher cotton productivity as compared to control and sole application of DAP under normal irrigation and osmotic stress.

scholarly journals Genetic analysis of yield components and fiber quality parameters in upland cotton

1970 ◽  
pp. 13-19
Author(s):  
Bilal Nawaz, Saira Sattar, Tanwir Ahmad Malik
Keyword(s):  
Upland Cotton ◽  
Phenotypic Correlation ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seed Cotton Yield ◽  
Maximum Value ◽  
Fiber Fineness ◽  
Significant Difference ◽  
Boll Weight ◽  
Seed Index

The experiment was laid to analyze genetic features, genotypic and phenotypic correlation coefficients, path analysis with regression analysis among yield contributing traits in a selected F3 populations of upland cotton including parents. In this research experiment ANOVA showed significant difference among all individual plants in F3 populations. Monopodia per plant and bolls per plant possessed maximum value of PCV% and GCV%. Maximum broad sense heritability (≥ 90) was found in all recorded traits except seeds per boll, fiber length and lint percentage. Correlation studies revealed that Seed cotton yield positively correlated with all yield contributing traits i.e. plant height, monopodial branches per plant, Number of bolls per plant, boll weight, lint weight, seed index, lint index, seeds per boll, fiber fineness, fiber strength and fiber uniformity at both genotypic and phenotypic level whereas it depicted negative relationship with staple length. Path coefficient analysis showed that maximum direct positive effect was found of lint weight (2.6005) on seed cotton yield followed fiber fineness (1.2628), seed index (1.1449) and bolls per plant (1.0027). Regression study exhibited that maximum value of R2 for lint weight (0.9509) and boll weight (0.3735) depicted that 95.09% and 37.35% variation in the seed cotton yield, due to its relationship with lint weight and boll weight. It is concluded that there is a great genetic potential in F3 populations for mostly yield contributing traits for further enhancing yield. So those traits should be used as selection criteria during breeding for yield.

scholarly journals Evaluation of yield, yield components and incidence of CLCV disease through planting times and varietal interaction in cotton in the Multan region

2019 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Salma Naimatullah
Keyword(s):  
Plant Height ◽  
Yield Components ◽  
Bt Cotton ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Sowing Time ◽  
Seed Cotton Yield ◽  
Boll Weight

Five Bt cotton varieties were evaluated for five different parameters (plant height, number of bolls per plant, boll weight, seed cotton yield and CLCV incidence after 105 days of planting) under six different sowing times (01 March, 15 March, 01 April, 15 April, 01 May and 15 May) at CCRI, Multan during the year 2018.Results revealed highly significant differences among the varieties, sowing times and their interaction for all the traits under study. Regarding sowing times, highest yield (3676 kg/ha) was produced when the sowing was done on 01 March followed by March 15 sowing (3496 kg/ha) with 4.3 and 6.1 CLCuV incidence% respectively after 105 days of sowing.However, lowest yield of 2483 kg/ha was achieved through 15 May planting with 96.7% CLCuV incidence. Regarding varietal performance, CYTO-313 excelled all other varieties by producing 3356 kg/ha seed cotton yield followed by CIM-343 (3195 kg/ha) with CLCuV percent incidence of 53.1 and 50.9 respectively at 105 days of planting.It was concluded from the present investigations that first March sowing is the optimum sowing time with zero percent CLCuV incidence for Multan region. Furthermore, variety CYTO-313 should be given primacy on other four varieties when farmer is going to adopt first March sowing.

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