Comparative efficiency of yield and yield contributing characters in F4 Generations of Oryza sativa L.

Islam, Kamrul; Bhuiyan, Md. Shahidur Rashid; Tithi, Mahbuba Jamil; Haque, Md. Maksudul

doi:10.26545/ajpr.2020.b00067x

Cited by 3 publications

(3 citation statements)

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“…The correlation coefficient between siliquae per plant and seed yield per plant (0.374) was lower than the direct effect in F 3 generation due to the negative indirect effect of siliquae per plant on seed yield per plant via plant height, primary branches per plant and secondary branches per plant which indicated that selection for these characters would not increase the seed yield. Such a negative correlation with seed yield was also reported by Islam and Haque (2015).…”

Section: Resultssupporting

confidence: 81%

Comparison of variability in early segregating generations of Indian Mustard [Brassica juncea (L.) Czern & Coss.] crosses

2023

EJPB

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Eight parents and the 28 crosses of Indian Mustard (Brassica juncea (L.) Czern & Coss.) in two segregating generations, viz., F 2 and F 3 were studied for their genetic variability during the rabi seasons of 2020-21 and 2021-22, respectively. Observations were recorded for six morphological characters such as plant height (cm), primary branches per plant, secondary branches per plant, siliquae per plant, 1000 seed weight (g) and seed yield per plant (g). The PCV was found to be greater than the GCV and the difference between them was high in all the characters in both F 2 and F 3 generations. Most of the characters revealed a medium range of GCV and PCV. Moderate heritability was expressed by all the characters except primary branches per plant in F 3 generation. The Genetic Advance as a percentage of Mean (GAM) was higher in most characters except in plant height. The character plant height was found to be positively correlated with seed yield per plant in both F 2 and F 3 generations, with secondary branches per plant in the F 3 generation and negatively correlated with primary branches per plant in F 3 generation. A high direct effect on seed yield per plant was exhibited by plant height and 1000 seed weight in both F 2 and F 3 generations and by Secondary branches per plant in the F 2 generation and Siliquae per plant in the F 3 generation.

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Section: Resultssupporting

confidence: 81%

Comparison of variability in early segregating generations of Indian Mustard [Brassica juncea (L.) Czern & Coss.] crosses

2023

EJPB

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“…Annisa et al (2013) reported positive association between flower and siliquae number with seed number and yield under hightemperature stress in B. rapa. Islam et al (2015) also reported positive association among yield per plant, number of siliquae per plant and seeds per siliqua in some inter-varietal crosses of B. rapa in a normal grown yield experiment. Stress indices have been widely used in different crops for screening tolerant genotypes based on yield reduction under stress conditions.…”

Section: Discussionmentioning

confidence: 80%

Genetic analysis of adaptive and physiological traits in response to high temperature stress in rapeseed

Phukan,

Sarma,

Das

et al. 2023

IJGPB

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Diallel populations of rapeseed consisting of three yellow sarson (B9, YSH401 and NRCYS05-03) and two toria (Jeuti and TS46) parental lines were used for studying the genetic variation for physiological traits in response to high temperature screened under temperature gradient tunnel. Significant variation was observed for all traits in stress environment. Parents Jeuti and TS46 along with the crosses B9 x Jeuti, YSH401 x TS46, NRCYS05-03 x Jeuti and NRCYS05-03 x TS46 were found promising based on mean performance for yield attributing characters under stress condition. YSH401 was a good general combiner for heat susceptibility index and B9 x YSH401, B9 x TS46 and YSH401 x Jeuti were observed as heat tolerant. Main shoot length, number of flowers on main shoot, number of siliquae on main shoot, siliqua density, percent flower drop, number of siliquae on terminal shoot, biological yield per plant and seed yield per plant showed high genetic variation with high heritability and genetic advance. Number of flowers on main shoot was positively correlated with siliquae on main shoot and seed yield per plant.

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“…The family belongs to 372 genera and 4060 accepted species bearing highly diversified morphology (https://en.wikipedia.org/wiki/Brassicaceae). B. rapa L. is commonly called turnip, turnip rape, field mustard, or turnip mustard and cultivated extensively for vegetables and edible oils in different parts of the world including Canada, China, Northern Europe and the Indian subcontinent (Islam et al, 2015). The genus Brassica has generally been aligned into three groups such as rapeseed, mustard and cole.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Potentiality of Eight Advanced Populations of Brassica Rapa L. Based on Yield and Yield Contributing Characters

Rupa,

Bhuiyan,

Rashid

et al. 2023

SAARC J Agric

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In a study conducted at the experimental field of Sher-e-Bangla Agricultural University from November 2018 to February 2019, eight advanced populations of Brassica rapa L. were assessed to explore their variability, heritability, genetic advance, correlations and path coefficient considering twelve yield-contributing traits. Significant variation was observed among all populations for all traits. Minimum difference between phenotypic and genotypic variance was noted in most of the traits, while high genotypic and phenotypic coefficient of variation occurred in the number of secondary branches per plant, number of siliquae per plant, thousand seed weight, and seed yield per plant. Traits like days to first flowering, days to 50% flowering, and days to 80% maturity exhibited high heritability with low genetic advance. Conversely, the number of siliquae per plant demonstrated high heritability with high genetic advance, suggesting potentiality for trait selection. Correlation analysis identified significant positive associations between seed yield per plant and several traits. Path coefficient analysis highlighted direct positive effects on seed yield per plant from days to 80% maturity, root length, number of secondary branches per plant, and thousand seed weight. Chronologically, G6 performed the best showcasing most of the traits especially seed yield per plant and days to 80% maturity which can be considered as important breeding material for improvement of B. rapa L. SAARC J. Agric., 21(2): 109-118 (2023)

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Comparative efficiency of yield and yield contributing characters in F4 Generations of Oryza sativa L.

Cited by 3 publications

References 0 publications

Comparison of variability in early segregating generations of Indian Mustard [Brassica juncea (L.) Czern & Coss.] crosses

Comparison of variability in early segregating generations of Indian Mustard [Brassica juncea (L.) Czern & Coss.] crosses

Genetic analysis of adaptive and physiological traits in response to high temperature stress in rapeseed

Evaluation of the Potentiality of Eight Advanced Populations of Brassica Rapa L. Based on Yield and Yield Contributing Characters

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