SCG JAS Paper Dec, 3rd 2016

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ISSN : 2348-8808 Print 2348-8867 Online Journal of AgriSearch 32: 93-100 SHAILESH CHAND GAUTAM AND MP CHAUHAN Department of Genetics and Plant Breeding Narendra Deva University of Agriculture and Technology Kumargaj Faizabad U.P . India Peer Reviewed Quarterly Combining Ability of Plant Height and Yield components in Indian Mustard Brassica junceaL.Czern Coss. under Salt affected Soil using Line×Tester Analysis ABSTRACT Line × tester analysis of twenty lines and three testers of Indian mustard Brassica juncea L. Czern Coss. cultivars were used to estimate general combining ability GCA specific combining ability SCA effects high parent heterosis and narrow-sense heritability estimate for plant height yield components and seed yield. Significant variance of line x tester for the traits like pods per plant and seed yield indicating non additive genetic effects have important role for controlling these traits. Significant mean squares of parents v/s crosses which are indicating significant average heterosis were also significant for all the traits except seeds per pod. High narrow-sense heritability estimates for all the traits except seeds per pod exhibited the prime importance of additive genetic effects for these traits except seeds per pod. Most of the crosses with negative SCA effect for plant height had at least one parent with significant negative or negative GCA effect for this trait. For most of the traits except pods per plant the efficiency of high parent heterosis effect was more than SCA effect for determining superior cross combinations. Keywords:GCA Heritability HeterosisLine × Tester SCA ARTICLE INFO Received on Accepted on Published online 31 28.04.2016 10.06.2016 .12.2015 Corresponding Author Email : scgautamgpb5gmail.com INTRODUCTION Indian mustard Brassica juncea L. CzernCoss. which is cultivated throughout the world belongs to the family Cruciferae Brassicaceae under the genus Brassica cultivated all over India because of its wide adaptation to different diverse climatic conditions and it is the major rabi oilseed crop of northern India . It has 38 to 42 oil and 24 protein . Among mating designs line x tester analysis helps in the identification of good general combiners and specific cross combinations as well as the choice of breeding procedure for genetic improvement of various polygenic characters. The information on combining ability of diverse parents for seed yield and its contributing characters is helpful in planning successful breeding programmes. Heritability and genetic advance are also important selection parameters in predicting the gain under selection. Information on the nature and degree of divergence provides a national basis and helps the plant breeders in choosing suitable parents for realizing recombination in breeding rogrammes. B. junceais valued for its intense flavors and healing properties. This plant is cultivated mainly as an oil crop . All over the world mustard is used for its appetizing flavor and preservative value and the seeds are used largely for tempering food. Mustard is available in the form of seeds powders and oil. Recently B. junceahas been explored for its biodiesel potential .Seed yield of canola is a quantitative trait which is largely influenced by the different environmental effects and most of the cases it has low heritability Singh et al. 1014 Singh et al. 2013 Fomina 1962 Jham et al. 2009 Habekotte 1997 Diepenbrock 2000 and Rameeh 2010 Singh and Chaudhury 1977 Shen et al. 2002 Nassimi et al. 2006a and Wang et al. 2007 Huang et al. 2010 and Rameeh 2011 . An Indian mustard breeding program for hybrid and open pollinated varieties general and specific combining ability effects GCA and SCA are important indicators of the potential of inbred lines in hybrid combinations. The line×tester analysis is one of the efficient methods of evaluating large number of inbred as well as providing information on the relative importance of GCA and SCA effects for interpreting the genetic basis of important plant traits . By using this scheme and other genetic designs like diallel analysis significant GCA and SCA effects of phonological traits seed yield and other yield associated traits were reported in rapeseed . In earlier studies on spring cultivars of rapeseed were stressed the important role of GCA and SCA effects for yield components. MATERIALS AND METHODS The present investigation entitled studies on Line × tester analysis for seed yield its components and oil content in Indian mustard Brassica junceaL. CzernCoss. under normal and salt affected soil.Line × tester mating design was conducted at Research Farm of Department of Genetics Plant Breeding Narendra Deva University of Agriculture and Technology Narendra Nagar Kumargaj Faizabad U.P . under normal soil and salt affected soil sown conditions during rabi 20013-14. Geographically this place is located 0 0 0 0 between 24.47 and 26.56 N latitude 82.12 and 83.98 E longitudes and at an altitude of 113 m above from mean sea level. This area falls in sub-tropical climatic zone. The soil type is sandy loam. The annual rainfall is about 1270 mm. The : : :

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94 Journal of AgriSearch Vol.3 No.2 Gautam and Chauhan climate of district Faizabad is semi-arid with hot summer and cold winter. All the plant protection measures were adopted to make the crop free from insects. The data were recorded on ten randomly selected plants of each entry of each replication for plant height number of siliquea per plant seeds per raceme and 1000-seed weight. Seed yield adjusted to kg/ha was recorded based on two middle rows of each plot. Data for the genotypes were subjected to line x tester analysis to estimate general combining ability GCA and specific combining ability SCA. A t-test was used to test whether the GCA and SCA effects were different from 0. For each hybrid and each studied trait the difference between hybrid and the mean of high parent was computed separately. Experimental materials: The material for present investigation comprised of 60 F s 1 developed by crossing with 20 females lines viz. SKM-904 NPJ-153 RGN-303 SKM-513 RB-60 NDR 2001-1 DRMR IJ- 118 RMM- 9-10 DRMR-659-49 KDM-1049 RGN-73 RN- 0904 NDR-08-1 Maya Albeli RRN-73 Albeli-1 RRN-732 Singh and Chaudhary 1977 MCP-633 and Varuna with 3 testers NDR-8501 CS-54 and Narendra Ageti Rai-4 in line x tester fashion design. A total of 83 treatments 60 F s + 20 lines + 3 testers were used 1 for investigation. Genotypes used as lines and testers were made available from the Oilseed Section of Department of Genetics and Plant Breeding Narendra Deva University of Agriculture and Technology Narendra Nagar Kumargaj Faizabad. RESULTS AND DISCUSSION Line × tester analysis of variance Line ×tester analysis of variance significant mean square of the genotypes and parent for the traits under study including plant height number of siliquea on main raceme seeds per plant 1000-seed weight and seed yield indication enough genetic variations for the genotypes and necessity of genetic analysis . Significant mean squares of parents vs crosses which are indication significant average heterosis were also significant for all the traits except number of seeds per plant. Table1 Table1 : Analysis of variance for plant height yield components and seed yield of Indian mustard Brassica junceaL. based on Line × tester fashion Source of Variance d.f. MS Plantheight cm Number of siliquea on main raceme Seeds per plant 1000-Seed W eight Seed yield per plant Replication 2 Genotypes 82 Parents 19 Parents vs crosses 1 Crosses 59 Testers 2 Line × tester 38 Error 164 25.58 770.97 1457.80 5965.21 426.83 282.11 345.78 13.46 32.09 34.59 44.68 40.45 30.72 26.75 25.18 12.76 1.73 3.08 3.22 0.05 3.08 2.76 2.71 1.00 0.72 1.34 2.06 0.21 1.80 1.79 0.99 0.23 0.35 8.69 5.93 6.71 8.35 4.52 9.84 0.25 Narrow sense heritability Specific combining ability effects of the crosses The crosses including NPJ-153×NDR-8501 -8.44 SKM- 518×NDR-8501 -12.80 RB-60×NDR-8501 -5.31 DRMR IJ- 118×NDR-8501 -16.10 RMM-9-10×CS-54 23.06 KDM- 1049×NDR-8501 -4.22 with negative specific combining ability SCA effects for the plant height were detected as good cross combinations for decreasing this trait . Most of the crosses with negative specific combining ability effect for plant height had at least one parent with significant negative or negative general combining ability effect for this trait. noted in Brassica junceagrown for seed yield taller plants are susceptible to lodging. Medium or short-statured plants are therefore desirable and accordingly negative general combining ability and specific combining ability values are sought for plant height. The more researchers have found the out of 28 crosses 13 showed negative SCA effects for plant height. Whereas the 40 crosses Table 2 Nassimi et al. 2006a in cross RMM-9-10×CS-54 -4.95 had significant SCA effects for number of siliquea on main raceme per plant. The crosses SKM-904×CS-54 9.91 NPJ-153×CS-54 17.89 SKM- 518×NDR-8501 5.91 NDR-2001-1×NDR-8501 4.24 DRMR IJ-11×CS-54 6.07 RMM-9-10×NDR-8501 9.93 DRMR-659- 4×CS-54 9.55 and KDM-1049×NDR-8501 3.86 with significant positive SCA effectsfor the character number of seeds per siliquea were seed yield selection of these crosses will improvement this seed yield. None of crosses had significant SCA effects for number of seeds per siliquea. The crosses including were NPJ-153×NDR-8501 0.56 and KDM- 1049×NDR-8501 0.60 are calculated positive and significant specific combining ability SCA effect and NDR-2001- 1×NDR-8501 -0.73 DRMR IJ-11×CS-54 -0.89 and KDM- 1049×CS-54 -1.19 negative SCA effects for 1000 seed weight. The crosses viz.SKM-904×NDR-8501 0.71 SK M-518×NDR- 8501 2.61 NPJ-153×CS-54 3.60 NDR-2001-1×NDR-8501 Note: and Significant at P0.05 and 0.01 respectively.

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95 Journal of AgriSearch Vol.3 No.2 Combining ability in Indian mustard under salt affected soil 2.87 DRMR IJ-11×CS-54 1.70 DRMR IJ-11×NDR-8501 1.47 and DRMR-659-4×NDR-8501 0.95 with positive specific combining ability effects for seed yield were considered as suitable combinations for improving this trait. The Similarly in earlier study was reported significant SCA effects for plant height the number of pods per main raceme the number of primary branches per plant days to 50 flowering and physiological maturity. Nassimi et al. 2006b Table 2 : Estimation of specific combining ability SCA effects for plant height yield components and seed yield in crosses of two testers and 20 lines of Indian mustards and their lines tester crosses Albeli×NDR-8501 -0.13 -1.38 -8.82 0.21 -0.83 Albeli×CS-54 1 -1.13 2.75 -0.44 0.05 RRN-743×NDR-8501 1.82 -4.58 -3.02 -0.12 -1.62 RRN-743×CS-54 4.69 3.39 6.82 1.24 1.11 Albeli-732×NDR-8501 -1.37 3.45 5.72 0.32 2.23 RGN-73×CS-54 -1.97 -1.55 1.7 0.67 0.03 RN-0904×NDR-8501 18.34 1.89 -6.05 -0.22 -0.57 RN-0904×CS-54 1 2.54 -5.91 0.03 1.45 NDR-8501×NDR-8501 0.06 -2.54 -1.09 -0.07 -1.36 NDR-8501×CS-54 -5.34 1.5 -4.67 0.61 -0.51 Maya×NDR-8501 8.35 4.30 9.42 0.1 0.97 Maya×CS-54 6.12 -4.45 -2.72 -0.02 -1.56 Crosses Plant height cm Number of siliquea on main raceme Number of Seeds per siliquea 1000 - seed weight Seed yield SKM-904×NDR-8501 6.81 2.47 -7.23 0.04 0.71 SKM-904×CS-54 9.02 -1.11 9.91 0.22 -0.54 NPJ-153×NDR-8501 -8.44 -2.45 -12.18 0.56 -1.74 NPJ-153×CS-54 -2.47 2.9 17.89 -0.47 3.60 RGN-303×NDR-8501 -2.15 2.31 0.84 0.37 -1.54 RGN-303×CS-54 -3.28 -1.34 -11.09 -0.18 -0.5 SKM-518×NDR-8501 -12.80 -0.75 5.91 0.37 2.61 SKM-518×CS-54 2.14 -0.62 -11.63 -0.15 -2.54 RB-60×NDR-8501 -5.31 0.43 -2.1 0.11 -1.00 RB-60×CS-54 8.83 1.32 -3.88 0 -1.90 NDR-2001-1×NDR-8501 1.28 -0.08 4.24 -0.73 2.87 NDR-2001-1×CS-54 1.72 1.54 -4.48 -0.01 -2.77 DRMR IJ-11×NDR-8501 -16.10 -1.28 -4.14 0.35 -1.52 DRMR IJ-11×CS-54 19.46 3.01 6.07 -0.89 1.47 RMM-9-10×NDR-8501 5.70 2.9 9.93 -0.39 -1.08 RMM-9-10×CS-54 -23.06 -4.95 -7.65 0.09 1.70 DRMR-659-4×NDR-8501 2.24 3.08 -4.68 -0.01 0.72 DRMR-659-4×CS-54 -2.2 -3.5 9.55 -0.14 -0.06 KDM-1049×NDR-8501 -4.22 0.07 3.86 0.60 0.95 KDM-1049×CS-54 1.05 -2.4 -6.45 -1.19 -0.79 RGN-73×NDR-8501 7.16 0.57 0.83 -0.33 -0.65

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96 Journal of AgriSearch Vol.3 No.2 Gautam and Chauhan Albeli-732×CS-54 -4.78 -1.49 -4.66 -0.19 -0.72 RRN- 732×NDR-8501 10.27 -1.43 2.61 -0.79 -1.42 RRN- 732×CS-54 -15.00 1.73 2.63 0.89 0.73 MCP-633×NDR-8501 -4.69 -2.2 0.88 -0.4 1.26 MCP-633×CS-54 3.82 1.46 5.11 0.36 1.55 Varuna×NDR-8501 -6.82 -4.79 5.10 0.04 1.00 Varuna×CS-54 -0.75 3.15 0.72 -0.42 0.21 CD 95 SCA 4.2 4.08 2.14 0.55 0.57 Note: and Significant at P0.05 and 0.01 respectively. General combining ability effects GCA of the parents The parents included NPJ-153 10.56 NDR-2001-1 6.74 DRMR IJ-118 5.63 DRMR-659-49 2.79 kdm-1049 5.18 RGN-73 7.66 NDR-8501 4.06 Maya 2.88 RRN-73 3.33 Albeli-732 10.0 and testers NarendraAgeti Rai-4 1.22 expressed positive and significant general combining ability for plant height . Among the number of siliquea on main raceme and number of seeds per siliquea showed positive and significant GCA effects studied combining ability using 12 lines and 3 testers for seed yield and its contributing traits. Among parents are possessed superior specific cross combination for seed yield and its Table 3 Verma et al.2000 contributing traits. combining ability using 20 lines and 3 testers for seed yield and its components over two environments. Significant differences due to lines testers and their interaction showed the importance of both additive and non-additive gene action with later being predominant was good general combiners for seed yield per plant plant height length of main raceme siliquae per plant and seeds per siliqua were the most specific cross combinations for seed yield and other yield related traits. Narendra Ageti Rai-4 negative GCA for plant height seed yield and 1000-seed yield its traits are expressed significant. Among the NDR-8501 line was significant for plant height and seed yield. Mall et al. 2010 Table 3: Estimates of general combining ability gca effects for plant height yield components and seed yield per plant of Indian mustard Brassica juncea L. Lines Plant height cm Number of on main raceme siliquea Number of per siliquea Seeds 1000-S weight eed Seed Y g ield SKM-904 NPJ-153 RGN-303 SKM-513 RB-60 NDR 2001 -1 DRMR IJ-118 RMM- 9-10 DRMR-659-49 KDM-1049 RGN-73 RN-0904 NDR-08-1 Maya Albeli RRN 73 0.32 10.56 1.16 1.38 0.14 6.74 5.63 17.01 2.79 5.18 7.66 0.49 4.06 2.88 4.11 3.33 4.56 -1.31 -2.81 -1.15 -1.27 0.04 0.77 -1.27 1.95 -1.55 -0.14 -0.79 -4.13 3.30 1.00 2.34 1.13 0.03 0.53 0.37 -0.07 0.08 0.31 -0.05 0.31 -1.56 -0.36 -0.56 -0.79 0.15 -0.18 -0.74 -0.05 0.51 0.34 -0.29 -0.20 0.30 -0.31 -0.42 -0.26 0.07 -0.21 0.87 0.29 -0.07 -0.55 -0.02 0.92 0.09 -1.01 -0.86 0.59 1.41 0.01 -0.30 -1.18 -1.38 1.29 -0.77 -1.93 -0.57 -0.63 -0.47

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97 Journal of AgriSearch Vol.3 No.2 Combining ability in Indian mustard under salt affected soil Note: and Significant at P0.05 and 0.01 respectively. High Parent Heterosis The result of high parent heterosis effects of crosses for all the traits is presented in . Out of 40 crosses 12 crosses had significant high parent heterosis effects of plat height. The crosses including SKM-904×CS-54 NPJ-153×CS-54 RGN- 303×CS-54 NDR-2001-1×CS-54 DRMR IJ-11×CS-54 KDM- 1049×CS-54 RN-0904×NDR-8501 RN-0904×CS-54 RGN- 73×CS-54 RGN-73×NDR-8501 Albeli×CS-54 and MCP- Table 4 633×CS-54 with significant negative high parents heterosis for plant height were suitable combinations for deceasing this trail. Although most of the crosses had significant SCA effect for number of siliquea on main raceme only one combination had significant high parent heterosis effect for this trait. Albeli-732×CS-54 and Varuna×CS-54 with significant positive high parent heterosis effects for seed yield was good combination for improving this trait . Table 5 Table 4: High parent heterosis Mid Parent for plant height yield components and seed yield in crosses of to testers and 20 lines of Indian mustard Brassica juncea L.. Crosses Plant height cm Number of siliquea on main raceme Number of Seeds per siliquea 1000-seed weight Seed yield g SKM-904×NDR-8501 1.8 10.32 7.32 42.25 36.51 SKM-904×CS-54 14.48 22.08 13.40 22.42 14.74 NPJ-153×NDR-8501 -1.08 -15.10 -4.5 81.20 -6.67 NPJ-153×CS-54 15.11 13.95 -1.35 21.68 52.16 RGN-303×NDR-8501 -4.66 -7.41 3.72 35.42 -13.38 RGN-303×CS-54 22.42 1.28 -6.51 3.09 -6.43 SKM-518×NDR-8501 -11.83 -10.71 23.68 30.73 37.98 SKM-518×CS-54 2.25 0.48 0.96 -3.03 -27.87 RB-60×NDR-8501 -9.50 -8.2 -7.02 6.72 12.36 RB-60×CS-54 -0.47 -2.98 -7.89 -10.72 -4.25 NDR-2001-1×NDR-8501 2.82 -6.32 14.49 6.81 15.24 NDR-2001-1×CS-54 4.43 7.37 -2.87 7.13 -31.29 DRMR IJ-11×NDR-8501 -11.03 -11.41 -7.49 40.25 -3.39 DRMR IJ-11×CS-54 12.05 1.2 -3.96 -16.02 27.15 RMM-9-10×NDR-8501 -10.49 -2.39 -8.48 -4.6 -0.66 RMM-9-10×CS-54 -29.32 -15.62 -9.82 -8.3 26.36 DRMR-659-4×NDR-8501 0.84 5.61 -6.51 7.18 -22.87 DRMR-659-4×CS-54 1.74 -1.82 2.33 -11.51 -29.84 Albeli-732 RRN-732 MCP-633 and Varuna S.E. GCA lines S.E. GCA testers Testers NDR 8501 NarendraAgetiRai 4 10.00 -21.18 -6.39 -7.62 1.2233 0.4738 1.22 -2.50 2.40 0.99 -0.70 -2.23 1.1908 0.4612 0.59 -0.13 0.57 0.64 0.93 -0.72 0.3342 0.1294 0.02 -0.21 0.03 0.54 -0.39 -0.20 0.1612 0.0624 0.14 -0.19 1.45 0.81 1.24 1.28 0.1663 0.0644 0.19 -0.31

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98 Journal of AgriSearch Vol.3 No.2 Gautam and Chauhan Note: and Significant at P0.05 and 0.01 respectively. Although none of crosses had significant SCA effect for Number of siliquea on main raceme six crosses had significant high parent heterosis effects for this trait. SKM- 904×CS-54 with significant positive high parent heterosis effect for number of siliquea on main raceme was good combination for increasing this trait and both of parents of this KDM-1049×NDR-8501 -1.85 -9.73 -1.91 30.03 -1.05 KDM-1049×CS-54 22.47 -6.06 -15.31 -27.90 -19.94 RGN-73×NDR-8501 7.30 -5.22 -6.05 9.77 -8.22 RGN-73×CS-54 5.16 3.86 -5.12 16.43 -2.86 RN-0904×NDR-8501 9.94 -3.65 -9.09 41.09 -17.77 RN-0904×CS-54 16.21 8.33 10.53 25.66 1.16 NDR-8501×NDR-8501 -0.85 -21.92 -8.96 19.07 -30.10 NDR-8501×CS-54 -4.33 -7.11 -4.61 16.86 -21.73 Maya×NDR-8501 3.4 -3.18 -0.48 26.00 9.04 Maya×CS-54 1.99 -18.37 8.13 3.37 -18.57 Albeli×NDR-8501 -5.28 -7.15 -11.85 -8.5 -0.24 Albeli×CS-54 32.17 7.03 8.53 -33.33 3.95 RRN-743×NDR-8501 0.48 -15.40 -26.42 6.67 -20.55 RRN-743×CS-54 2.41 5.49 -12.60 20.54 6.75 Albeli-732×NDR-8501 3.22 7.53 23.56 41.60 58.26 Albeli-732×CS-54 14.26 15.15 -3.35 5.93 18.73 RRN - 732×NDR - 8501 - 9.68 - 7.26 1.83 20.51 - 10.83 RRN- 732×CS-54 -12.03 6.65 -0.91 42.41 9.32 MCP-633×NDR-8501 -9.79 -13.05 -4.69 -11.05 42.93 MCP-633×CS-54 7.34 4.44 10.82 -7.65 42.01 Varuna×NDR-8501 -12.01 -22.76 7.37 20.67 21.57 Varuna×CS-54 -2.4 9.89 -5.74 -9.48 13.02 CD 95 SCA LSD α0.05 LSD α0.01 Table 5 : Genotypic Correlation among the yield associated traits in two testers and 20 lines of Indian mustard and their line × tester fashion Genotypic Correlation Character Plant Height cm Number of Siliquea on main racemes Number of Seeds per Siliqua 1000-seed weight g Seed yield g Plant Height cm 1.0000 0.5827 0.0983 0.0403 0.0544 Number of siliquea on main racemes 1.0000 0.4520 0.2581 0.0721 Number of seeds per siliqua 1.0000 0.3546 0.2003 1000-seed weight g 1.0000 1.0000 Seed yield g 1.0000

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combination had positive GCA effect for number of siliquea on main raceme. Out of 40 crosses 16 crosses had significant high parent heterosis effects of 1000-seed weight. For 1000- seed weight in Indian mustard hybrids an average high parent heterosis of 30 with a range of 20–50 was observed while for winter rapeseed hybrids an average high parent heterosis of 50 was reported ranging from 20 to 80 as reviewed by . In general high narrow- sense heritability estimates for all the traits except Number of Siliquea on main racemes exhibited the prime importance of additive genetic effects for these traits except seeds per pod. McVetty 1995 Table 6 Significant variance of line x tester for Number of Siliquea on main racemes and seed yield indicating additive genetic effects have important role for controlling these traits. Although most of the crosses had significant SCA effects for pods per plant but one cross had significant high parent heterosis effect for this trait therefore the efficiency of SCA effect is more important than heterosis effect for detecting superior combinations for pods per plant. For other studied traits the efficiency of high parent heterosis effect is more than SCA effect for determining superior cross combinations . Table 7 Table 6: Phenotypic Correlation among the yield associated traits in two testers and 20 lines of Indian mustard and their line × tester fashion Phenotypic Correlation Character Plant Height cm Number of Siliquea on main racemes Number of Seeds per Siliqua 1000-seed weight g Seed yield g Plant H eight cm 1.0000 0.3521 0.0727 0.0370 0.0414 Number of siliquea on main racemes 1.0000 0.2371 0.1760 0.0767 Number of seeds per siliqua 1.0000 0.2356 0.1158 1000-seed weight g 1.0000 -0.0205 Seed yield g 1.0000 Table 7: Environmental Correlation among the yield associated traits in two testers and 20 lines of Indian mustard and their line × tester fashion Environmental Correlation Character Plant Height cm Number of Siliquea on main racemes Number of Seeds per Siliqua 1000 -seed weight g Seed yield g Plant Height cm 1.0000 0.0507 0.0657 -0.0109 -0.0007 Number of siliquea on main racemes 1.0000 0.1016 0.1168 0.0859 Number of seeds per siliqua 1.0000 0.0820 0.0322 1000 -seed weight g 1.0000 0.11941 Seed yield g 1.0000 99 Journal of AgriSearch Vol.3 No.2 Combining ability in Indian mustard under salt affected soil ACKNOWLEDGEMENTS The authorsacknowledge the assistance received from Dr. K.H.Singh Dr. H.K.Singh Dr. ShaileshGodika Dr. K. Kumar DayaramGautam Er. R. C. Gautam Er. D. C. Gautam and Mis.SeemaGautam for providing genetic materials and facility for conducting the experiment. CONCLUSION Line × tester analysis of the genotypes and parent for the traits under study including plant height number of siliquea on main raceme seeds per plant 1000-seed weight and seed yield indication enough genetic variations for the genotypes and necessity of genetic analysis. High narrow-sense heritability estimates for all the traits except seeds per pod exhibited the prime importance of additive genetic effects for these traits except seeds per pod. For most of the traits except pods per plant the efficiency of high parent heterosis effect was more than SCA effect for determining superior cross combinations. Most of the crosses with negative SCA effect for plant height had at least one parent with significant negative or negative GCA effect for this trait.

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REFERENCES Diepenbrock W.2000. Yield analysis of winter oilseed rape Brassica napus L.: A review. FiledCrop Res. 67: 35-49. Habekotte B. 1997. Evaluation of seed yield determining factors of winter oilseed rape Brassica napus L. by means of crop growth modeling. Field CropsRes. 54: 137-51. Mall AK RamBhajan Kumar K and Verma OP . 2010. Combining ability analysis for some metric traits over environments in Indian-mustard Brassica juncea L. CzernCoss. Pantnagar Journal of Research. 8 1: 20-5. McVetty PBE. 1995. Review of performance and seed production of hybrid Brassicas. Proceedings of 9th International Rapeseed Conference July 4-7 Cambridge pp: 98-103. Nassimi AW Raziuddin A Sardar N and Naushad A. 2006a. Study on heterosis in agronomic characters of rapeseed Brassica napus L. using diallel. J. Agron. 5: 505-8. Nassimi AW Raziuddin A Sardar N Ali SA and Bakht J. 2006b. Analysis of Combining ability in Brassica napus L. lines for yield associated traits. Pakistan Journal of Biological Sciences 9: 2333-7. Rameeh V . 2011. Heritability and other genetic parameters assessment for flowering associated stress indices in oil seed rape varieties. Int. J. Plant Breed. Genet. 5: 268-76. Shen JX Fu TD and Yang GS. 2002. Heterosis of double low self- incompatibility in oilseed rape Brassica napus L.. Agri. Sci. China 1: 732-7. Singh AK Manibhushan Bhatt BP Singh KM and Upadhyaya A. 2013.An Analysis of Oilseeds and Pulses Scenario in Eastern India during 2050-51.Journal of Agril. Sci. 5 1: 241-9. Singh R Singh AK and Kumar P .2014.Performance of Indian Mustard Brassica juncia L. in Response to Integrated Nutrient Management. Journal of AgriSearch 1 1: 9-12. Singh RK and Chaudhury BD. 1977.Biometrical Techniques in Breeding and Genetics.Scholarly Pubns Delhi. Verma OP Kushwaha GD and Singh HP . 2000. Heterosis in relation to genetic diversity in Indian mustard Brassica juncea L. Czern Coss..Cruciferae Newsletter 22 : 93-4. Wang JS Wang XF Zhang YF Zhang Z Tian JH and Li DR. 2007. Study on heterosis among subspecies or varieties in B. campestris L. Proceedings of the 12th International Rapeseed Congress Wuhan TRCW07 China: Science PressUSA PP: 108-10. Citation: Gautam SC and Chauhan MP . 2016 Combining ability of plant height and yield components in Indian mustard Brassica juncea L. Czern Coss. under salt affected soil using line × tester analysis. Journal of AgriSearch 3 2: 93-100 100 Journal of AgriSearch Vol.3 No.2 Gautam and Chauhan

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