Paper · 2019 · International Journal of Current Microbiology and Applied Sciences

Genetic Variability, Heritability and Genetic Advance in Bread Wheat [Triticum aestivum L.]

Upasna Mishra; A.K. Sharma; Shailja Chauhan

8
claims
8
verbatim quotes
21
citations
2
research areas
✓
Open access

Abstract

An experiment was conducted in a randomized complete block design with two replications at experimental area of Research Farm, College of Agriculture, Gwalior, (M.P.) during 2014-2015. The study was undertaken to inheritance of grain yield and its components in thirty six wheat genotypes. Analysis of variance revealed that genotypes were significantly differed for all characters and suggested considerable variability for all yield and its attributing characters in the present material. Among genotypes tested, HI 1610 seems to be the best, because, it is highest yielder, early flowering, early maturing, and bold grain size and dwarf.Almost equal magnitude of GCV and PCV showed for days to heading, 1000 grain weight and days to maturity indicating that these characters are less influenced by the environment while grain yield and plant height exhibited high value of PCV over its GCV value, indicating relatively large amount of variation for these characters was due to environment alone. The Higher heritability was observed for days to heading, 1000 grain weight and plant height. High heritability coupled with high genetic advance recorded for traits 1000 grain weight, plant height, days to heading and grain yield and that these characters are governed by additive gene effects; a directional selection for these traits would be more effective for desired genetic improvement.

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Claims 8

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Wheat genotypes differed significantly for all evaluated yield characters.

Outcome
all yield and its attributing characterse0

Not reportedTaxon

Verbatim

e0

“genotypes were significantly differed for all characters and suggested considerable variability for all yield and its attributing characters”

✓ located verbatim in the source · abstract, characters 325–465 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

HI 1610 had the highest yield and was early flowering, early maturing, bold grained and dwarf.

Material
HI 1610e0
Outcome
highest yielder, early flowering, early maturing, and bold grain size and dwarfe0

Not reportedTaxon

Verbatim

e0

“HI 1610 seems to be the best, because, it is highest yielder, early flowering, early maturing, and bold grain size and dwarf”

✓ located verbatim in the source · abstract, characters 515–639 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

GCV and PCV were nearly equal for days to heading, 1000 grain weight and days to maturity, suggesting less environmental influence.

Outcome
days to heading, 1000 grain weight and days to maturitye0
Setting
environmente0

Not reportedTaxonDirection

Verbatim

e0

“Almost equal magnitude of GCV and PCV showed for days to heading, 1000 grain weight and days to maturity indicating that these characters are less influenced by the environment”

✓ located verbatim in the source · abstract, characters 640–816 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

PCV exceeded GCV for grain yield and plant height, indicating substantial environmental variation.

Outcome
grain yield and plant heighte0
Direction
high value of PCV over its GCV valuee0
Setting
environmente0

Not reportedTaxon

Verbatim

e0

“grain yield and plant height exhibited high value of PCV over its GCV value, indicating relatively large amount of variation for these characters was due to environment alone”

✓ located verbatim in the source · abstract, characters 823–997 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Heritability was higher for days to heading, 1000 grain weight and plant height.

Outcome
heritabilitye0
Direction
Highere0

Not reportedTaxon

Verbatim

e0

“The Higher heritability was observed for days to heading, 1000 grain weight and plant height”

✓ located verbatim in the source · abstract, characters 999–1091 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

High heritability with high genetic advance was recorded for 1000 grain weight, plant height, days to heading and grain yield.

Outcome
heritability coupled with high genetic advancee0
Direction
Highe0

Not reportedTaxon

Verbatim

e0

“High heritability coupled with high genetic advance recorded for traits 1000 grain weight, plant height, days to heading and grain yield”

✓ located verbatim in the source · abstract, characters 1093–1229 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors interpret the high heritability and genetic advance as additive gene effects.

Outcome
additive gene effectse0
Qualifier
these characterse0

Not reportedTaxon

Verbatim

e0

“these characters are governed by additive gene effects”

✓ located verbatim in the source · abstract, characters 1239–1293 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Directional selection for these traits is recommended for genetic improvement.

Outcome
directional selection for these traitse0

Not reportedTaxon

Verbatim

e0

“a directional selection for these traits would be more effective for desired genetic improvement”

✓ located verbatim in the source · abstract, characters 1295–1391 · show in text ↑