Genetic variability, heritability and genetic advance of yield and related traits of Spanish bunch groundnut (Arachis hypogaea L.)

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
G. Bhargavi ◽  
V. Satyanarayana Rao ◽  
K. L. Narasimha Rao
Keyword(s):  
Harvest Index ◽  
Kernel Weight ◽  
Oil Yield ◽  
Genetic Advance ◽  
Pod Yield ◽  
Biological Yield ◽  
Additive Gene ◽  
High Heritability ◽  
Simple Selection ◽  
Kernel Yield

Twenty diverse genotypes of Spanish bunch groundnut were evaluated during late <italic>kharif</italic> in 2012 to assess the variability, heritability and genetic advance as per cent of mean for nineteen characters <italic>viz</italic>., days to 50% flowering, SPAD chlorophyll meter reading at 40; 50; 60; 70 DAS and at maturity, days to maturity, number of mature pods per plant, biological yield per plant (g), pod yield per plant (g), biological yield per hectare (q), pod yield per hectare (q), harvest index, 100 kernel weight (g), shelling percentage, kernel yield per plant (g), kernel yield per hectare (q), oil content (%) and oil yield per hectare (q). The results revealed that high PCV and GCV was observed for harvest index and pod yield per hectare (q) respectively. High heritability accompanied with high genetic advance as per cent of mean was recorded for number of mature pods per plant, biological yield per plant (g), pod yield per plant (g), biological yield per hectare (q), pod yield per hectare (q), harvest index, kernel yield per plant (g), kernel yield per hectare(q) 100 kernel weight (g) and oil yield per hectare (q) indicated the preponderance of additive gene action which may be exploited through simple selection methods.

Studies on variability, heritability and genetic advance as per cent of mean in Spanish bunch groundnut genotypes (Arachis hypogaea L.)

2016 ◽  
Author(s):  
V. Satyanarayana Rao ◽  
G. G.Bhargavi ◽  
D. Ratna Babu
Keyword(s):  
Kernel Weight ◽  
Point Of View ◽  
Oil Yield ◽  
Research Station ◽  
Genetic Advance ◽  
Pod Yield ◽  
Agricultural College ◽  
Biological Yield ◽  
Additive Gene ◽  
Kernel Yield

Twenty Spanish bunch groundnut genotypes were collected from Agriculture Research Station, Kadiri, Andhra Pradesh, along with the check TMV 2 were used to study their variability, heritability and genetic advance as per cent of mean for nineteen characters viz., days to 50% flowering, SPAD chlorophyll meter reading (SCMR) at 40, 50, 60, 70 DAS and at maturity, days to maturity, number of mature pods per plant, biological yield per plant (g), pod yield per plant (g), biological yield per hectare (q), pod yield per hectare (q), harvest index, 100 kernel weight (g), shelling percentage, kernel yield per plant (g), kernel yield per hectare (q), oil content (%) and oil yield per hectare (q) during summer 2013 at Agricultural College farm, Bapatla. The results revealed that the highest PCV and GCV were observed for number of mature pods per plant. High heritability accompanied with high genetic advance as per cent of mean was recorded for number of mature pods per plant, biological yield per plant (g), pod yield per plant (g), biological yield per hectare (q), pod yield per hectare (q), kernel yield per plant (g), kernel yield per hectare (q), 100 kernel weight (g) and oil yield per hectare (q) indicating the preponderance of additive gene action which might be exploited through simple selection procedures. The study revealed that the genotypes Abhaya and JCG 88 were better for further breeding from yield point of view.

scholarly journals Genetic variation and characterization of different linseed genotypes (Linum usitatissimum L.) for agro-morphological traits

2017 ◽  
Vol 9 (2) ◽  
pp. 754-762
Author(s):  
Satish Paul ◽  
Nimit Kumar ◽  
Pankaj Chopra
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Crop Improvement ◽  
Genetic Advance ◽  
Linum Usitatissimum L ◽  
Biological Yield ◽  
Additive Gene ◽  
High Heritability ◽  
Apparent Variation

Forty five linseed genotypes (local collection) were subjected to study the genetic variability at the Experimental Farm of the Department of Crop Improvement, CSK Himachal Pradesh KrishiVishvavidyalaya, Palampur, during rabi 2015-2016. Analysis of variance revealed that the differences among all the genotypes were significant for all the traits. Mean performance of genotype KLSA-15 for seed yield recorded highest contribution of 3.69 grams. The PCV values were greater than the GCV values for all the traits studied indicating that the apparent variation is not only due to genotypes but, also due to the influence of environment. The highest PCV (64.17) and GCV (64.09) were found for biological yield per plant. Higher estimates of PCV and GCV were obtained for primary branches per plant, secondary branches per plant, capsules per plant, biological yield per plant, harvest index (45.94 and 44.60) and seed yield per plant (52.39 and 50.94). All the characters studied in the present investigation expressed high heritability estimates ranging from 62.95 to 99.77 percent for technical height and biological yield per plant respectively. It was revealed that most of the traits under study showed low genetic advance, high heritability (94.23) and high genetic advance (31.06) was recorded for harvest index indicating predominance of additive gene action for this character. Simple selection based on phenotypic performance of this character would be more effective. The cluster analysis showed that the genotypes were placed into four clusters, showing inter-cluster divergence, which is important for future hybridization programme.

Genetic analysis for morphological, physiological, yield and yield attributes in groundnut (Arachis hypogaea L.)

2017 ◽  
Vol 51 (04) ◽  
Author(s):  
G. Bhargavi ◽  
V. Satyanarayana Rao ◽  
K.L. Narasimha Rao
Keyword(s):  
Mean Value ◽  
Oil Yield ◽  
Yield Attributes ◽  
Selection Procedures ◽  
Pooled Data ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Additive Gene ◽  
Simple Selection ◽  
Kernel Yield

Twenty Spanish bunch groundnut genotypes were evaluated for genetic parameters of 19 characters of morphological, physiological, yield and yield attributes over three seasons viz., Late Kharif (2012), Rabi (2012-13) and Summer (2013). The pooled data over three environments revealed that the genotype JL 24 showed lowest mean value for days to maturity, highest mean value for SCMR at 40 DAS and SCMR at 50 DAS. The genotype Abhaya showed highest mean value for pod yield per hectare and oil yield per hectare. Results indicated that PCV estimates were higher than those of GCV for all the characters studied indicating the influence of environment in varying degrees on all the characters. The results revealed that highest GCV was observed for pod yield per plant. Moderate heritability accompanied with high genetic advance as per cent of mean was recorded for pod yield per plant, pod yield per hectare (q), kernel yield per plant (g), kernel yield per hectare (q) and oil yield per hectare (q) indicating the preponderance of additive gene action which may be exploited through simple selection procedures.

Evaluation of genetic variability, heritability and genetic advance in blackgram [Vigna mungo (L.) Hepper]

2018 ◽  
Author(s):  
Shilpa Chauhan ◽  
Raj Kumar Mittal ◽  
A. Lohar ◽  
Vinod Kumar Sood ◽  
Ranjana Patial
Keyword(s):  
Experimental Study ◽  
Seed Yield ◽  
Harvest Index ◽  
Block Design ◽  
Genetic Advance ◽  
Biological Yield ◽  
High Heritability ◽  
Superior Genotypes ◽  
Transgressive Segregants ◽  
Selection Of

An attempt was made to study blackgram germplasm with an objective to develop genetically diverse genotypes accompanied with high heritable components of yield contributing traits. The experimental material comprised of 21 blackgram genotypes, was examined during kharif 2015 and 2016. Experimental study conducted during kharif 2015, was mainly relied on selection of transgressive segregants, which were further analyzed in Compact Family Block Design during kharif 2016. The results depicted that families and progenies within families were significantly different for majority of the traits and found to be highly variable for biological yield, harvest index and seed yield. High heritability coupled with high genetic advance were recorded for plant height (74.15%, 33.12%), branches per plant (84.34%, 40.55%), biological yield (83.51%, 69.11%) and seed yield (84.50%, 66.11%). Thus, the present findings could be beneficial to develop superior genotypes through selection in blackgram breeding program.

Genetic study and selection indices for grain yield of mungbean

2016 ◽  
Author(s):  
P. Choudhary ◽  
S. K. Payasi ◽  
N. K. Patle
Keyword(s):  
Grain Yield ◽  
Selection Index ◽  
Yield Potential ◽  
Genetic Advance ◽  
Economic Weight ◽  
Selection Indices ◽  
Biological Yield ◽  
Additive Gene ◽  
High Heritability ◽  
Positive Direct

Mungbean (Vigna radiata L.) genotypes along with two parents were studied to assess the magnitude of genotypic variability, heritability and selection indices among the yield components and their direct and indirect effects on grain yield. On the basis of genetic variability, all the traits exhibited high heritability estimates coupled with high genetic advance as percent of mean (h2³ 60%, GAM³20 %) except 100 grain weight (h2 = 0.51, GAM= 8.0 %), indicating the preponderance of additive gene action. Biological yield/plant and harvest index had the most positive direct effects (1.448, 1.144, respectively) on grain yield/plant, indicating these traits synergistically affect photosyntates. Based on Smith-Hazel indices the highest genetic advance (17.56%) in grain yield/plant obtained on linear combination of traits such as days to 50% flowering, days to maturity, plant height, pod length, grains/pod and biological yield/plant (X2X3X4X7X8X10) accomplished through a completely new selection-index in which economic weight of each traits were equally distributed, suggesting that these parameters may be considered as prime traits during the course of selection to realize higher yield potential in green gram.

Genetic Variability, Character Association and Path Analysis for Pod Yield and its Component Characters in Groundnut [Arachis hypogaea (L.)]

2021 ◽  
Author(s):  
Giradhari Lal Yadav ◽  
S.S. Rajput ◽  
D.K. Gothwal ◽  
M.L. Jakhar
Keyword(s):  
Genetic Variability ◽  
Block Design ◽  
Crop Improvement ◽  
Kernel Weight ◽  
Direct Selection ◽  
Oilseed Crop ◽  
Pod Yield ◽  
Biological Yield ◽  
Positive Direct ◽  
Kernel Yield

Background: Groundnut is an important oilseed crop in the India. The groundnut kernels serve as a rich source of edible oil (48-50%) and quality protein (25-28%). In crop improvement programme, availability of sufficient genetic variability is of immense importance. The knowledge of nature and magnitude of genetic variance controlling yield and yield components is a prerequisite for improvement of yield in any crop. Methods: The present investigation was undertaken to assess the genetic variability and character associations for pod yield and component characters in 45 genotypes of groundnut. The genotypes were raised in randomized complete block design with three replications during kharif 2019 at SKNAU, Jobner (Rajasthan). Result: The analysis of variance revealed significant differences among the genotypes for all the characters studied indicating presence of wide genetic variation for different characters. In the present investigation, high genetic advance coupled with high heritability and GCV was observed for biological yield per plant, 100-kernel weight, kernel yield per plant, dry pod yield per plant and pods per plant which indicated prevalence of additive gene action in their expression and these traits possessed high selective value. Kernel yield per plant, pods per plant and biological yield per plant exhibited significantly positive correlation with dry pod yield per plant both at genotypic and phenotypic levels, while shelling percentage at genotypic level only. Three characters viz., kernel yield per plant, pods per plant and biological yield per plant could be considered as direct selection parameters for yield improvement in groundnut because they exerted positive direct effect on dry pod yield per plant.

scholarly journals Evaluation of Heritability and Genetic Advance for Morphological Traits of Indian Mustard Germplasms

2020 ◽  
pp. 39-47
Author(s):  
Dinesh Awasthi ◽  
Vimlesh Kumar Tiwari ◽  
V. S. Kandalkar
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Harvest Index ◽  
Indian Mustard ◽  
Heritability Estimate ◽  
Genetic Advance ◽  
Additive Gene ◽  
High Heritability ◽  
Level Of Significance ◽  
Number Of Seeds

Genotypic source of variations were significant for all characters in 168 genotypes including 7 checks of Indian mustard at 5% level of significance. Maximum seed yield per plant (g) and harvest index was recorded in MRNJ-82; whereas, the minimum days to 50% flowering and maturity were recorded in RVM-1 and MRNJ-5 respectively. In genotypes viz; MRNJ-36, RVM-2, MRNJ-59, JM-1, MRNJ-53 and MRNJ-35 had maximum plant height (cm), number of primary branches per plant, number of secondary branches per plant, number of siliqua per plant, number of seeds per siliqua and 1000 seed weight (g). Highest GCV and PCV were recorded for seed yield per plant which indicates for improvement through selection among these genotypes. High heritability along with high genetic advance as percentage of mean has been noticed for seed yield per plant and harvest index indicating less influence of environment and also the presence of additive, dominance and interaction among genes in the expressions of these characters. Low genetic advance along with low heritability estimate were observed for number of primary branches per plant and number of seeds per siliqua. This indicates the involvement of additive and non-additive gene actions in their inheritance.

scholarly journals Line × tester Study in Bread Wheat (Triticum aestivum L.) for Important Biochemical and Morphological Traits

2022 ◽  
Author(s):  
Anand Kumar ◽  
Lokendra Singh ◽  
Prashant Kaushik
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Morphological Traits ◽  
Triticum Aestivum L ◽  
Genetic Advance ◽  
Biochemical Traits ◽  
Days To Maturity ◽  
Biological Yield ◽  
High Heritability ◽  
F1 Generation

: Using line × tester analysis, the current research analyses parental genotypes and their combinations in normal conditions and identifies the genes influencing yield characteristics. In the present study, 15 diverse genotypes, including 10 lines, 5 testers, and 50 F1s hybrids, were evaluated for 13 morphological and 2 biochemical traits. A suitable location was taken to study the effect of 15 characters. The results exposed that ability mean squares were significant for all studied additive and non-additive components. In this direction, the general combining ability of PBW-343, DBW-39, K-402, K-1317, KRL-210, and K-68 were higher than the remaining parents. For morphological traits like yield, the top five crosses were described based on SCA effects, namely, HD-3086 × HD-3171, K-402 × K-9107, K-1317 × K-9107, HD-2967 × K-0307 and K-402 × K-68 in F1 generation. In addition, the high value of heritability was estimated for plant height (77.32%), spike length (32.26%), biological yield/plant (59.52%), and grain yield/plant (68.76%). However, the moderate values of heritability were estimated for days to maturity (22.78%) and phenol color reaction (18.00%). The higher genetic advance was not found for recorded characters; however, a moderate genetic advance was recorded for grain yield per plant (13.15%) and harvest index (11.72%). High heritability coupled with moderate genetic advance was recorded for two characters grain yield per plant and harvest index in F1 and F2 generations.

Correlation and path analysis studies in groundnut under different environment

2016 ◽  
Author(s):  
P. Venkataravana ◽  
M Sandhya Kiranmai ◽  
H. D. Pushpa
Keyword(s):  
Plant Height ◽  
Leaf Spot ◽  
Positive Association ◽  
Kernel Weight ◽  
Oil Yield ◽  
Plant Oil ◽  
Late Leaf Spot ◽  
Pod Yield ◽  
Correlation And Path Analysis ◽  
Kernel Yield

In groundnut strong positive association was noticed between pod yield per plant and kernel yield per plant, oil yield per plant and significant and negative association with late leaf spot severity and rust incidence irrespective of the environments. Pod yield was also correlated with 100- kernel weight, plant height and oil content in environment III. The magnitude and direct association of pod yield with other characters varied from environment to environment. Inter correlation estimates for yield components revealed that plant height, 100-kernel weight, kernel yield per plant, oil yield per plant, late leaf spot severity, number of matured pods per plant, harvest index and plant height were significantly associated with one another and also with pod yield per plant which indicated that these characters were important components for improvement of pod yield in groundnut. This indicated that selection of genotypes based on oil yield per plant and kernel yield per plant is advantageous than the other characters.

scholarly journals Evaluation and identification of promising advanced breeding lines for quality and yield traits in groundnut (Arachis hypogaea L.)

2021 ◽  
Vol 17 (2) ◽  
pp. 280-286
Author(s):  
Praveen Kona ◽  
M.K. Mahatma ◽  
K. Gangadhara ◽  
B.C. Ajay ◽  
Narendra Kumar ◽  
...  
Keyword(s):  
Soluble Sugar ◽  
Kernel Weight ◽  
Breeding Lines ◽  
Total Soluble Sugar ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Significant Difference ◽  
Additive Gene ◽  
High Heritability ◽  
Augmented Design

Kernel size coupled with the nutritional quality will determine the worth of groundnut for direct consumption or export. Focusing on this objective one hundred and fifty advanced breeding lines (ABLs) in both Spanish and Virginia botanical varieties were evaluated with four checks under Augmented Design during Kharif, 2018 at ICAR- Directorate of Groundnut Research, Junagadh, Gujarat. Significant difference was observed for days to 50% flowering, hundred pod weight (g), hundred kernel weight (g), sound mature kernel (%), shelling percent, pod weight per plant (g), and protein percent. Pod yield per plant (g) registered highest estimates of GCV and PCV. High heritability coupled with high genetic advance as per cent of mean was recorded for 100 pod weight (g), 100 kernel weight (g), sound mature kernel percentage and pod yield per plant (g) traits which indicates a significant role of additive gene action for inheritance of these traits which may be exploited through simple selection methods. Eleven genotypes viz., PBS 19013, PBS 19015, PBS 19018, PBS 29079 B, PBS 29082, PBS 29124, PBS 29167, PBS 29196, PBS 29197, PBS 29212 and PBS 29219 had good confectionery quality traits viz., large seed size (HKW: >55 g; KL: >1.5cm and KW: >0.7cm), high protein (>30%), high total soluble sugar (>5 %), moderate oil (42- 48%), uniform pod size and shape, high pod yield per plant (> 10g) and good shelling percentage (>60%). These promising genotypes can directly be released as a variety after testing in multi-location AICRP-G trials or can be used in hybridization programmes as donor parents for improving confectionery qualities in groundnut.

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