scholarly journals Combining ability analysis for various yield and quality traits in rice (Oryza sativa L.)

2015 ◽  
Vol 7 (2) ◽  
pp. 865-873
Author(s):  
Showkat A. Waza ◽  
H. K. Jaiswal ◽  
T. Sravan ◽  
Kumari Priyanka ◽  
Dilruba A. Bano ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Combining Ability ◽  
Oryza Sativa L ◽  
Yield Traits ◽  
Quality Traits ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile ◽  
Yield And Quality ◽  
Combining Ability Analysis

An investigation was undertaken to assess the combining ability for yield and quality traits in rice. Three WA cytoplasmic male sterile lines of rice i.e., IR-58025A, IR-68897A and Pusa 6A were crossed with six restorer genotypes i.e., Sanwal Basmati, Pusa Sugandh-2, Pusa Sugandh-3, Pusa Sugandh-5, Pusa 2517-2-51-1 and HURJM- 59221 in line x tester design to generate 18 hybrids. Among the female parents, IR-58025A revealed significant desirable value of GCA effect for yield per plant and most of the quality traits. Among the pollen parents, Pusa Sugandh-3 revealed significant desirable value of GCA effect for most of the yield traits. However, Pusa Sugandh-5 revealed significant desirable value of GCA effect for most of the quality traits. Pusa 6A x Pusa Sugandh-2 evinced the highest significant value of SCA effect for grain yield followed by IR-58025A x Pusa Sugandh-5. However, IR- 68897A x Pusa 2517-2-51-1 followed by IR-58025A x Sanwal Basmati revealed the significant desirable value of SCA effect for most of the quality traits. For both yield and quality traits, IR-58025A x Pusa Sugandh-5, IR-68897A x HUR-JM-59221 and Pusa 6A x Pusa Sugandh-2 were found to be relatively better performing. Thus, present study aims to develop hybrids performing better for both yield and quality traits.

scholarly journals Combining ability for yield and different quality traits in rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 2298-2304
Author(s):  
J. Menaka ◽  
S. M. Ibrahim
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Analysis Of Variance ◽  
Combining Ability ◽  
Gene Action ◽  
Oryza Sativa L ◽  
Quality Traits ◽  
Yield And Quality ◽  
Heterosis Breeding

Gene action and combining ability for yields and quality traits were analyzed by line x tester analysis in 48 crosses along with 8 lines and 6 testers to find out their usefulness in improvement of quality traits. Analysis of variance revealed that ASD 16 line and Pusa Basmati 1 and Basmati 370 testers were the good combiners for both yield and quality traits. The crosses ADT 36 / GEB 24, ASD 16 / Pusa Basmati 1, ADT 43 / Jeeragasamba, MDU 2 / Pusa Basmati 1 and MDU 5 / Improved White Ponni were identified as the good specific combiners for grain yield and some other quality characters. Dominance gene action was found to be predominant for most of the quality characters along with yield giving way for exploitation of heterosis breeding for meeting out the increasing quality preference of the consumers.

scholarly journals Heterosis for yield and quality traits in rice (Oryza sativa L.)

2016 ◽  
Vol 8 (3) ◽  
pp. 1510-1522
Author(s):  
Showkat A. Waza ◽  
Hemant K. Jaiswal ◽  
T. Sravan ◽  
Dilruba A. Bano ◽  
Kumari Priyanka ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
F1 Hybrids ◽  
Yield Traits ◽  
Quality Traits ◽  
Cross Combination ◽  
Yield And Quality ◽  
Top Performers ◽  
Days To Maturity

Twenty F1 hybrids from three CMS lines and eight pollen parents were evaluated to study the heterosis for various yield and quality traits in rice (Oryza sativa L.). The findings suggested that the magnitude of heterosis differed from character to character and cross to cross. Majority of the hybrids recorded desirable heterosis for grain yield. Among the rice hybrids exhibiting high heterosis for grain yield, IR-68897A x Pusa Sugandh-3, IR-58025A x HUR-JM-59221 and IR-58025A x Pusa Sugandh-5 were top performers. The hybrid, IR-68897A x Pusa Sugandh-3 recorded highest yield per plant, and was among the best three performers for traits, days to 50% flowering, days to maturity and number of effective tillers per plant. Thus, IR-68897A x Pusa Sugandh-3 may be considered as the best heterotic combination for yield and yield traits. Among the three high yielding hybrids, IR-58025A x Pusa Sugandh-5 was found to be relatively better performing for majority of the quality traits. Thus, IR-58025A x Pusa Sugandh-5 may be considered as the best cross combination if both yield and quality traits are taken into consideration.

scholarly journals Combining ability analysis for grain yield and its attributes in Rice (Oryza sativa L.)

2014 ◽  
Vol 12 (1) ◽  
pp. 1-8
Author(s):  
BP Mallikarjuna ◽  
N Shivakumar ◽  
J Devendrappa ◽  
VD Sheela ◽  
G Bharamappa ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Combining Ability ◽  
Gene Action ◽  
Oryza Sativa L ◽  
Breeding Strategy ◽  
Rice Breeding ◽  
Additive Gene Action ◽  
Combining Ability Analysis ◽  
Additive Gene

Combining ability on grain yield and its components from line × tester analysis of thirty rice hybrids (Oryza sativa L.) produced by crossing three newly developed CMS lines and ten testers of local origin were studied. The analysis revealed higher SCA variance than GCA variance for all the characters except plant height indicating the prevalence of non-additive gene action. The line KCMS 45A and testers MSN 36 and KMR 3 were the good general combiners for yield and its major contributing characters. MSN 99 was the only good general combiner among the male parents for earliness and dwarfness. The hybrids KCMS 46A × MSN 75, KCMS 44A × KMR 4 and KCMS 45A × KMR 3 were identified as potential hybrids for yield contributing characters based on SCA effects which could be exploited in future rice breeding programme by adopting heterosis breeding strategy. The contribution of testers towards the total variance was found higher than lines and line x tester interaction suggesting predominant of testers influence for these characters. DOI: http://dx.doi.org/10.3329/sja.v12i1.21107 SAARC J. Agri., 12(1): 1-8 (2014)

Study on heterosis for yield and quality traits in rice (Oryza sativa L.)

2020 ◽  
Vol 57 (3) ◽  
pp. 190-198
Author(s):  
P Ramesh Babu ◽  
h Sreelakshmi C
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Mating System ◽  
Oryza Sativa L ◽  
Quality Traits ◽  
Predominant Role ◽  
Yield And Quality ◽  
Head Rice ◽  
Additive Component

To know the extent of heterosis among the selected 21 crosses derived from the diallel mating system using seven parents regarding yield and quality traits. The magnitude of heterosis was high for grain yield and protein content and moderate to high for plant height, ear bearing tillers per plant, number of primaries per panicle, L/B ratio, head rice recovery and GT score. The best heterotic crosses for grain yield were erramallelux NLR 33637 and IR 72 x NLR 33637. The high heterotic effects in the hybrids may be due to predominant role of non additive component in the inheritance of the characters studied.

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