scholarly journals Combining ability analysis for grain and fodder traits in sorghum (Sorghum bicolor (L.) Moench)

2020 ◽  
Vol 49 (3) ◽  
pp. 487-497
Author(s):  
Rumana Khana ◽  
Balu Ram Ranwah ◽  
Vijay Sharma ◽  
Subodh Khandagale
Keyword(s):  
Protein Content ◽  
Combining Ability ◽  
Grain Protein Content ◽  
Quality Traits ◽  
Dual Purpose ◽  
Fodder Quality ◽  
Combining Ability Analysis ◽  
Fodder Yield ◽  
Normal Spacing ◽  
Sorghum Bicolor L

Over the environment, on the basis of days to flowering and suitability for dual purpose analysis was carried out of 100 genotypes including 75 F1s with 20 parents and 5 checks. Data were collected for grain yield, dry fodder yield, protein content in grain, protein content in fodder, TSS and juiciness. Variations between lines, testers and line × tester was significant for all characters. As both grain and dry fodder yield are important dual-purpose attributes, lines ICSA 202, ICSA 349 and ICSA 357 and ICSA 481 were found to be good general combiners for both grain and dry fodder yield. Two crosses viz., ICSA 29002 × SU 1565 and ICSA 356 × SU 1570 exhibited significant SCA effects in all the four environments whereas hybrids ICSA 552 × SU 1561, ICSA 202 × SU 1570,, ICSA 349 × SU 1561, ICSA 208 × SU 1561, ICSA 474 × SU 1561 and ICSA 357 × SU 1565 showed good SCA effects in normal spacing (E1 and E3) and ICSA 481 × SU 1561 and ICSA 399 × SU 1557 in wider spacing (E2 and E4) for both grain and dry fodder yield. These lines and crosses also expressed positive significant GCA and SCA effects for majority of the remaining fodder quality traits.

scholarly journals Gene action and combining ability studies for protein content and grain quality traits in rice (Oryza sativa L.)

2019 ◽  
Vol 10 (1) ◽  
pp. 58
Author(s):  
M. Asvin Kirubha ◽  
R. P. Gnanamalar ◽  
K. Thangaraj ◽  
A. Kavitha Pushpam ◽  
A. R. Priyanka
Keyword(s):  
Oryza Sativa ◽  
Protein Content ◽  
Combining Ability ◽  
Grain Quality ◽  
Gene Action ◽  
Oryza Sativa L ◽  
Quality Traits

scholarly journals Combining Ability Studies for Identifying High Sugar Yielding Sweet Sorghum [Sorghum bicolor (L.) Moench] Genotypes

2020 ◽  
pp. 43-49
Author(s):  
B. C. Nandeshwar ◽  
Beka Biri ◽  
Alemayehu Dugassa
Keyword(s):  
Combining Ability ◽  
Sweet Sorghum ◽  
Gene Action ◽  
Ethanol Yield ◽  
Breeding Programme ◽  
Combining Ability Analysis ◽  
Half Diallel ◽  
High Ethanol ◽  
Sorghum Bicolor L ◽  
Pedigree Breeding

Combining ability analysis provides information about the gene action involved in the expression of a trait and facilitates breeding of superior cultivars. Hence, 45 hybrids evolved from 10 parent half-diallel were evaluated for combining ability to identify good general combiners and superior cross combinations for high ethanol yield from sweet sorghum. RSSV-21-2 has been identified as the best general combiner. It can be used in pedigree breeding programme for the incorporation of desired traits for enhancing ethanol yield. ARS-SS-35-1 × NSS-218 and ARS-SS-83 × NSS-221-2 have been identified as the best specific combinations. These could be exploited in heterosis breeding programme.

CHANGES IN SORGHUM GRAIN PROTEIN CONTENT WITH MATURITY AT FOUR LEVELS OF NITROGEN

1984 ◽  
Vol 64 (4) ◽  
pp. 797-804
Author(s):  
CHRISTIANAH O. AJAKAIYE
Keyword(s):  
Sorghum Bicolor ◽  
Protein Content ◽  
Protein Concentration ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Grain Protein Concentration ◽  
Four Levels ◽  
Sorghum Grain ◽  
Sorghum Bicolor L ◽  
Days After Anthesis

The changes which occurred in grain protein content with maturity of three sorghum (Sorghum bicolor (L.) Moench) genotypes were investigated at four nitrogen (N) application levels, 0, 35, 70 and 140 kg/ha. Three sorghum genotypes (RCFA × L.187, L.187 and SK 5912) were field-grown at Samaru, Zaria, Nigeria. Grain was sampled at 10, 17, 24 and 67 days after anthesis and grain protein was determined by Kjeldahl methods. The concentration of grain protein of RCFA × L.187 and L.187 increased up to 24 days after anthesis with a peak at 17 days after anthesis in 1977 while in SK 5912, the highest concentration was at 10 days after anthesis in that year. In 1978, the concentration trend was similar to that in 1977 but the behavior of SK 5912 was erratic because an increase in grain protein concentration occurred at 17 days after anthesis only in plants grown on soil supplied with 35 and 70 kg N/ha. In all other treatments, the grain protein concentration of this genotype decreased from 10 to 67 days after anthesis. However, total grain protein yield per hectare increased significantly in all genotypes at harvest over that at 10 days after anthesis.Key words: Sorghum bicolor (L.) Moench, protein content, genotypes, maturity

scholarly journals Estimation of combining ability analysis in tomato (Solanum lycopersicum L.) for yield, nutritional and processing quality improvement

2017 ◽  
Vol 9 (4) ◽  
pp. 2021-2025
Author(s):  
Chandan Kumar ◽  
S. P. Singh
Keyword(s):  
Combining Ability ◽  
Nutritional Quality ◽  
Climatic Conditions ◽  
Hybrid Vigour ◽  
Quality Traits ◽  
Commercial Exploitation ◽  
Titrable Acidity ◽  
Solanum Lycopersicum L ◽  
Combining Ability Analysis ◽  
Number Of Seeds

Combining ability for yield and nutritional quality traits in tomato were studied by involving 28 cross combi-nations obtained from crossing 8 diverse lines in diallel mating fashion. Based on GCA effects of parents, the varie-ties Pant T-3, Arka Alok and Sel-7 were good general combiners for most of the traits under study. The crosses viz., Pant T-3 x H-24 (1.052%), Arka Meghali x Punjab Chhuhara (0.768%) and H-88-78-1 x Azad T-5 (0.768%) were found to be high positive specific combining ability effect for yield per plant. For quality traits, the crosses Arka Me-ghali x Punjab Chhuhara and H-24 x Sel-7 were also superior specific combiner for number of seeds per fruit and ascorbic acid, while cross Punjab Chhuhara x H-88-78-1 was superior specific combiner for number of seeds per fruit (24.165%), yield per plant (0.677%) and titrable acidity (0.183%). These elite hybrids may be tested for yield and other quality traits under different agro-climatic conditions for commercial exploitation of hybrid vigour.

Application of Aegilops tauschii–Triticum aestivum recombinant inbred lines for grain protein content quantitative trait loci detection and wheat improvement

2020 ◽  
Vol 100 (4) ◽  
pp. 425-434
Author(s):  
Yarui Su ◽  
Pingan Liao ◽  
Danyang Song ◽  
Shiquan Huang ◽  
Jie He ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Quantitative Trait Loci ◽  
Protein Content ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Aegilops Tauschii ◽  
Grain Protein Content ◽  
Inbred Lines ◽  
Quality Traits

Grain protein content (GPC) is an important nutritional quality trait of wheat. Aegilops tauschii Coss. is a progenitor of common wheat and has been shown to have high GPC. The objective of this study was to identify quantitative trait loci (QTL) for GPC using A. tauschii–Triticum aestivum L. recombinant lines. An advanced BC2F6 population (112 lines) containing A. tauschii segments was developed using synthetic octaploid wheat (hexaploid wheat Zhoumai 18 × A. tauschii T093), which displayed significant phenotype variances. Two quality traits, GPC and wet gluten, and four yield-related traits, thousand kernel weight, spikelet number per plant, grain number per spike, and grain weight per spike, were evaluated. The results show that the mean GPCs of these lines were significantly higher than those of Zhoumai 18. Correlation and mapping analyses indicated that quality traits were weakly negatively correlated with yield traits. Furthermore, 16 A. tauschii-derived QTL for GPC were detected in the recombinant inbred lines, and four stable QTL that have no significant negative effects on yield and are located within the same marker interval were detected in both environments. Additionally, high-protein, high-yield lines 150228 and 150368 with stable QTL were obtained, and both can be directly utilised for fine mapping of the GPC genes and molecular marker–assisted selection to achieve synergistic improvement of wheat yield and protein content.

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