Estimation of Variability for Grain Yield and Quality Traits in Rice (Oryza sativa L.)

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

Journal of Applied and Natural Science ◽

10.31018/jans.v8i4.1129 ◽

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.

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Growth, grain yield and quality of rice (Oryza sativa L.) in response to elevated CO2 and phosphorus nutrition

Soil Science & Plant Nutrition ◽

10.1080/00380768.1997.11863730 ◽

1997 ◽

Vol 43 (sup1) ◽

pp. 1131-1136 ◽

Cited By ~ 52

Author(s):

Saman P. Seneweera ◽

Jann P. Conroy

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Elevated Co2 ◽

Oryza Sativa L ◽

Phosphorus Nutrition ◽

Yield And Quality ◽

Grain Yield And Quality

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INFLUENCE OF COW MANURE AND ITS VERMICOMPOSTING ON THE IMPROVEMENT OF GRAIN YIELD AND QUALITY OF RICE (ORYZA SATIVA L.) IN FIELD CONDITIONS

Applied Ecology and Environmental Research ◽

10.15666/aeer/1601_097110 ◽

2018 ◽

Vol 16 (1) ◽

pp. 97-110 ◽

Cited By ~ 4

Author(s):

E. TAHERI RAHIMABADI

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Oryza Sativa L ◽

Field Conditions ◽

Cow Manure ◽

Yield And Quality ◽

Grain Yield And Quality

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

Journal of Applied and Natural Science ◽

10.31018/jans.v8i3.993 ◽

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.

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