scholarly journals Analysis of combining ability and gene action studies for grain yield and its component traits in bread wheat utilizing line x tester mating design

2021 ◽  
Vol 22 (3) ◽  
pp. 289-298
Author(s):  
Amitava Roy ◽  
Anil Kumar ◽  
Vaishali Rawat ◽  
Anu Singh
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Combining Ability ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Cross Combination ◽  
Mating Design ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines

The present research investigation was conducted in order to analyze combining ability and nature of gene actions in 33 F1s of bread wheat (Triticum aestivum L. em. Thell) developed by crossing eleven lines with three testers in a line x tester mating design in terms of grain yield and associated traits. The hybrids along with the parental lines and two check varieties were planted in a randomized block design in three replications. Variance ratio between general and specific combining ability was found to be less than unity which indicated the prevalence of non-additive gene actions involved in the inheritance of these characters. Parental lines QLD 75 (3.164), followed by SOKOLL (2.888) and QLD 65 (2.819) exhibited significant GCA for grain yield, while another line PRL/2*PASTOR*2//FH6-1-7/3/KINGBIRD#1//… was observed to be the better general combiner for most other traits including maturity. Among the hybrids cross combination NAC/TH.AC//3*PVN/3/MIRLO/BUC/4/2*PASTOR/5/…x HD 3237 showed significant higher positive SCA for grain yield and biological yield per plant, whereas, F1 QLD 75 x HI 1621was a good specific combiner for harvest index (%) and number of grains per spike. The cross combination VORB/4/D67.2/PARANA66.270 x PBW 725 was observed with significant higher positive SCA for days to 75% heading, days to maturity and plant height, and another hybrid VORB/4/D67.2/PARANA 66.270 x HI 1621 exhibited significant positive SCA for 1000 grain weight and spike length.

Combining ability and heterosis studies across environments in linseed (Linum usitatissimum L.)

2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Combining Ability ◽  
Yield Components ◽  
Block Design ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines ◽  
Fibre Yield

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.

scholarly journals Combining ability analysis in bread wheat (Triticum aestivum (L.) Em. Thell) under different environmental conditions

2019 ◽  
Vol 48 (1) ◽  
pp. 85-93
Author(s):  
Vijay Sharma ◽  
NS Dodiya ◽  
RB Dubey ◽  
Rumana Khan
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Combining Ability ◽  
Gene Action ◽  
Flag Leaf ◽  
Triticum Aestivum L ◽  
Pooled Analysis ◽  
Combining Ability Analysis ◽  
Component Traits ◽  
Diverse Origin

Pooled analysis of 8 genotypes of wheat of diverse origin, their 28 F1s and 2 checks was carried out in 4 different environments to study the combining ability in bread wheat for grain yield and its component traits. On pooled basis, analysis of variance due to GCA and SCA was significant for all characters revealed difference between parents for GCA and difference between crosses for SCA. Similarly, mean square due to GCA × E was significant for number of effective tillers per plant and flag leaf area revealed influence of environment on GCA. Whereas SCA × E was also significant for number of effective tillers per plant and grain yield per plant revealed influence of environment on SCA. The variance due to GCA was higher than their respective SCA for all characters except number of grains per spike indicating that additive type of gene action played role in the expression of all these traits. Significant GCA effects for grain yield and its component traits were exhibited by the parents HD 2987, Lok 1 and HI 1544. Fourteen crosses recorded showed significant SCA effects for grain yield and related traits.

scholarly journals Estimation of heterosis for grain yield and yield attributes in bread wheat genotypes utilizing line x tester analysis (Triticum aestivum L. em. Thell)

2021 ◽  
pp. 85-95
Author(s):  
Amitava Roy ◽  
Anil Kumar ◽  
Karthick Babu S ◽  
Simran Sisodiya ◽  
Anu Singh
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
F1 Hybrids ◽  
Research Centre ◽  
Rabi Season ◽  
Yield Attributes ◽  
Randomized Block Design

Eleven genotypes of bread wheat were crossed with three testers in the rabi season of 2018-19 inline x tester mating fashion to obtain 33 F1 hybrids, which were evaluated with parents and two standard checks of wheat viz., UP 2855 and HD 2967. The experiment was laid out in randomized block design with three replications at Norman E. Borlaug Crop Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar in the rabi season 2019-20. Observations were recorded on various qualitative and quantitative characters including grain yield. The results obtained revealed significant differences among all the genotypes, indicating the presence of aconsiderable amount of genetic variability. The cross combinations SOKOLL x HI 1621, followed by QBP 12-11 x HI 1621, NAC/TH.AC//3*PVN/3/MIRLO/BUC/4/ 2*PASTOR/5/… x HD 3237 were observed to be the better heterotic F1s in terms of grain yield. The hybrid QLD 75 x HI 1621 was identified as the best heterotic combination for grain weight per spike and harvest index. Whereas, for grains per spike F1, NW 6036 x HI 1621, for 1000 grain weight F1, SOKOLL x HD3237, for spike length F1, NAC/TH.AC//3*PVN/3/ MIRLO/BUC/4/2*PASTOR/5/… x HD 3237, for peduncle length F1, VORB/4/D67.2/PARANA 66.270 x HI 1621 and for days to 75% heading and days to maturity F1, PRL/2*PASTOR*2//FH6-1-7/3/KINGBIRD#1//… x PBW 725 were observed to be the better heterotic combinations. The crosses with higher heterotic values may provide an opportunity for isolation of desirable purelines in advanced generations.

scholarly journals Expected genetic gains from mono trait and indexbased selection in advanced bread wheat (Triticum aestivum L.) populations

2020 ◽  
Vol 73 (2) ◽  
pp. 9131-9141
Author(s):  
Zine El Abidine Fellahi ◽  
Abderrahmane Hannachi ◽  
Hamenna Bouzerzour
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Flag Leaf ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Research Unit ◽  
Kernel Weight ◽  
Wide Range ◽  
Wheat Lines ◽  
Selection Of

This study aimed at evaluating the expected gains from selection obtained based upon direct, indirect, and index-based selection in a set of 599 bread wheat lines. The experiment was carried out at the experimental field of INRAA institute, Setif research unit (Algeria), in a Federer augmented block design including three controls. A wide range of genetic variability was observed among lines for the eleven traits assessed. The results indicated that index-based selection and selection based on grain yield expressed higher expected genetic gain than direct and indirect mono-trait-based selection. The best 15 selected lines exhibited higher grain yield than the control varieties, and they were clustered in three groups that contrasted mainly for the flag-leaf area, thousand-kernel weight, biomass, and harvest index. The index-based selection appears as a useful tool for the rapid selection of early filial generations, enriching selected breeding materials with desirable alleles and reducing the number of years required to combine these traits in elite varieties.

scholarly journals Seed Priming and Priming Duration Influence on Growth and Yield of Wheat (Triticum aestivum L.) under Rainfed Condition of Hilly Uttarakhand

2021 ◽  
Vol 12 (2) ◽  
pp. 121-124
Author(s):  
Mayank Singh Panwar ◽  
◽  
R. G. Upadhyay ◽  
Ajay Kumar ◽  
Arunima Paliwal ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Seed Priming ◽  
Triticum Aestivum L ◽  
Growth And Yield ◽  
Rainfed Condition ◽  
Randomized Block Design ◽  
Lime Water ◽  
Normal Water ◽  
Early Establishment

Insufficient stand establishment of winter wheat is a major problem in the rainfed region of the Uttarakhand hills. In order to increase germination and early establishment in the field under rainfed condition of hilly tracts this study was conducted at college of forestry VCSG University of Horticulture and Forestry, Ranichauri, Tehri Garhwal, Uttarakhand, India. The ten treatments were laid out in randomized block design with three replications in field. The treatments were VL 892 primed for 12 hrs with normal water, VL 892 primed for 24 hrs with normal water, VL 892 primed for 12 hrs with lemon water, VL 892 primed for 24 hrs with lemon water, VL 829 primed for 12 hrs with normal water, VL 829 primed for 24 hrs with normal water, VL 829 primed for 12 hrs with lemon water, VL 829 primed for 24 hrs with lemon water, VL 892 with no priming, and VL 829 with no priming. Significantly higher grain Yield of wheat was recorded in VL 829 primed with normal water for 24 hours which was statistically on par with VL 829 primed for 12 hrs with normal water, VL 892 primed for 24 hrs with normal water and VL 892 primed for 12 hrs with normal water. Significantly higher grain yield was recorded in case of priming with normal water than the priming with lime water.

scholarly journals Effects of Heat Stress on Growth, Physiology of Plants, Yield and Grain Quality of Different Spring Wheat (Triticum aestivum L.) Genotypes

2021 ◽  
Vol 13 (5) ◽  
pp. 2972
Author(s):  
Muhammad Waheed Riaz ◽  
Liu Yang ◽  
Muhammad Irfan Yousaf ◽  
Abdul Sami ◽  
Xu Dong Mei ◽  
...  
Keyword(s):  
Heat Stress ◽  
Grain Yield ◽  
Combining Ability ◽  
Grain Quality ◽  
Block Design ◽  
Stress Conditions ◽  
Specific Combining Ability ◽  
Growth Stages ◽  
Wheat Genotypes ◽  
Parental Lines

Heat stress is one of the major threats to wheat production in many wheat-growing areas of the world as it causes severe yield loss at the reproductive stage. In the current study, 28 crosses were developed using 11 parental lines, including 7 female lines and 4 male testers following line × tester matting design in 2018–2019. Twenty-eight crosses along with their 11 parental lines were sown in a randomized complete block design in triplicate under optimal and heat stress conditions. Fifteen different morpho-physiological and grain quality parameters were recorded at different growth stages. Analysis of variance illustrated the presence of highly significant differences among wheat genotypes for all traits under both optimal and heat stress conditions. The results of combining ability unveiled the predominant role of non-additive gene action in the inheritance of almost all the studied traits under both conditions. Among parents, 3 parental lines WL-27, WT-39, and WL-57 showed good combining ability under both normal and heat stress conditions. Among crosses, WL-8 × WT-17, WL-37 × WT-17, WL-7 × WT-39, and WL-37 × WT-39 portrayed the highest specific combining ability effects for grain yield and its related traits under optimal as well as heat stress conditions. Biplot and cluster analysis confirmed the results of general and specific combining ability by showing that these wheat crosses belonged to a highly productive and heat tolerant cluster. Correlation analysis revealed a significantly positive correlation of grain yield with net photosynthetic rate, thousand-grain rate, and the number of grains per spike. The designated parental lines and their crosses were selected for future breeding programs in the development of heat resilient, climate-smart wheat genotypes.

scholarly journals Effects of silicate application on soil fertility and wheat yield

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4071
Author(s):  
Marcos Vinícius Mansano Sarto ◽  
Maria Do Carmo Lana ◽  
Leandro Rampim ◽  
Jean Sérgio Rosset ◽  
Jaqueline Rocha Wobeto
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Chemical Properties ◽  
Magnesium Silicate ◽  
Triticum Aestivum L ◽  
Exchange Capacity ◽  
Soil Chemical Properties ◽  
Randomized Block Design ◽  
Fe And Mn ◽  
Calcium Magnesium

An improvement in soil chemical properties and crop development with silicate application has been confirmed in several plant species. The effects of silicate application on soil chemical properties and wheat growth were investigated in the present study. The experiment was carried out in 8-L plastic pots in a greenhouse. Treatments were arranged in a randomized block design in a 3 × 5 factorial: three soils [Rhodic Acrudox (Ox1), Rhodic Hapludox (Ox2) and Arenic Hapludult (Ult)] and five silicate rates (0, 1, 2, 4 and 6 Mg ha–1 of calcium/magnesium silicate), with four replications. The plant length, number of spikes per pot, shoot dry matter and grain yield, were measured after 115 days of wheat (Triticum aestivum L.) growth. Changes in the soil chemical properties (pH, H+ + Al3+, Al3+, P, K, Ca, Mg, Si, Cu, Zn, Fe and Mn) were analyzed after wheat harvest. Application of calcium/magnesium silicate reduces the potential acidity (H+ + Al3+) and Al3+ phytotoxic; and increases the soil pH, available Ca, Mg and Si, cation exchange capacity (CEC) and soil base saturation. Silicate application did not affect the available P, exchangeable K and availability of micronutrients (Cu, Zn, Fe and Mn) in the three soils. The application of calcium/magnesium silicate in an acid clayey Rhodic Hapludox improves the development and yield of wheat; however, the silicate application in soil with pH higher to 5.3 and high Si availability does not affect the agronomic characteristics and grain yield of wheat. An improvement in soil chemical properties and crop development with silicate application has been confirmed in several plant species. The effects of silicate application on soil chemical properties and wheat growth were investigated in the present study. The experiment was carried out in 8-L plastic pots in a greenhouse. Treatments were arranged in a randomized block design in a 3 × 5 factorial: three soils [Rhodic Acrudox (Ox1), Rhodic Hapludox (Ox2) and Arenic Hapludult (Ult)] and five silicate rates (0, 1, 2, 4 and 6 Mg ha–1 of calcium/magnesium silicate), with four replications. The plant length, number of spikes per pot, shoot dry matter and grain yield, were measured after 115 days of wheat (Triticum aestivum L.) growth. Changes in the soil chemical properties (pH, H+ + Al3+, Al3+, P, K, Ca, Mg, Si, Cu, Zn, Fe and Mn) were analyzed after wheat harvest. Application of calcium/magnesium silicate reduces the potential acidity (H+ + Al3+) and Al3+ phytotoxic; and increases the soil pH, available Ca, Mg and Si, cation exchange capacity (CEC) and soil base saturation. Silicate application did not affect the available P, exchangeable K and availability of micronutrients (Cu, Zn, Fe and Mn) in the three soils. The application of calcium/magnesium silicate in an acid clayey Rhodic Hapludox improves the development and yield of wheat; however, the silicate application in soil with pH higher to 5.3 and high Si availability does not affect the agronomic characteristics and grain yield of wheat.

scholarly journals Time of sowing affect the yield attributes, yield and Economics of wheat (Triticum aestivum L.)

2020 ◽  
Vol 1 (1) ◽  
pp. 49-51
Author(s):  
Rajeev Singh ◽  
◽  
Nityanand . ◽  
Devendar Mandol ◽  
Zakir Hussain
Keyword(s):  
Triticum Aestivum ◽  
Field Experiment ◽  
Grain Yield ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Yield Attributes ◽  
Straw Yield ◽  
Randomized Block Design

The field experiment was carried out at KrishiVigyan Kendra, Aurangabad and at farmers’ field during rabi seasons of 2013-14 and 2014-15, to response of time of sowing affect the yield attributes, Yield and Economics of wheat (Triticum aestivum L.). Experiment was laid out in a completely randomized block design with 4date of sowing i.e5th November, 15th November 25th November, 5thDecemberin a total of five replications duringrabi 2013-14 and 2014-15. Significantly maximum grain yield (44.64 q/ha) recorded with wheat sown at 5th November being at par with 15th November both were significantly more over 25th November and 5th December. 6.13%, 3.70% more grain yield recorded with at 5th November and 15th November produces over sowing of wheat at 25th November and 33.65% and30.59% more grain yield over 5th December, respectively. Sowing of wheat at 5th November produced more straw yield (52.90q/ha) being at par with 15th November and they were significantly more over 25th November and 5th December. Straw yield recorded 8.49%, 7.51% more with at 5th November and 15th November produces more straw yield over 25th November and 15.96% and14.91% more straw yield over 5th December Sowing of wheat. Significantly highest B-C ratio was also recorded with 5thNovember and statically at par with 15th November over 25th November and 5th December. Highest return 6.13 and 3.71% & by 33.65% & 30.60%, respectively higher returns by were recorded when wheat sown at 5th November and 15th November over 25th November and 5th December respectively.

scholarly journals Combining ability and heterosis analysis for fibre yield and quality parameters in roselle (Hibiscus sabdariffa L.)

2017 ◽  
Vol 9 (4) ◽  
pp. 2502-2506
Author(s):  
Hariom Kumar Sharma ◽  
Shashi Bhushan Choudhary ◽  
A. Anil Kumar ◽  
R. T. Maruthi ◽  
S.K. Pandey
Keyword(s):  
Combining Ability ◽  
Block Design ◽  
Additive Genetic Variance ◽  
Quality Parameters ◽  
Hibiscus Sabdariffa ◽  
Cross Combination ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Fibre Fineness ◽  
Fibre Yield

Roselle (Hibiscus sabdariffa L.) is second important bast fibre crop after jute in India. With an aim to ex-ploit non-additive genetic variance present experiment was designed to identify good general combining parents and specific cross combination for fibre yield and fibre quality parameters (fibre fineness, fibre tenacity) in roselle. A total of 11 parents were crossed in complete diallel fashion which resulted 55 F1, 55 RF1 (reciprocal F1). Parents, F1s and RF1s were grown in randomized block design. Analysis of variance revealed significant differences (P< 0.01, P<0.05) among the parents and their hybrids. The parents AMV 1, AMV 5, GR 27 and AHS 160 were identified as good combiners since they recorded significant general combining ability (GCA) effects for fibre yield and quality parameters. Further, For fibre yield only three crosses (AMV 1 × AMV 4, AMV 1 × GR 27, HS 4288 × JRR 07) showed significant specific combining ability (SCA) effects from them hybrid AMV 1 × GR 27 (fibre yield=27.37g/ plant) exhibited positively significant best parent (Non bris 4, Mean fibre yield=21.16g/plant) heterosis (29.35%). Similarly, for fibre tenacity, hybrid GR 27 × JRR 07 (fibre tenacity=23.47g/tex) exhibited positively significant best parent (HS 4288; fibre tenacity=20.35g/tex) heterosis (15.30%).

Sign in / Sign up

Export Citation Format

Share Document