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Line x Tester analysis for yield components and cercospora leaf spot resistance in brinjal (Solanum melongena L.)

Line x Tester analysis for yield components and cercospora leaf spot resistance in brinjal (Solanum melongena L.)

The estimates of general combining ability effects for 12 lines and 3 testers for 11 characters (Table 3) indicated that best combiners were KS-8204-2 and KS-7509-1 for days to 50% flowering , KS- 7305 and KS-7840 for branches per plant , KS- 6103 for days to maturity, KS-5623 and KS-7840 for fruit length , KS-6103 and KS-7846 for fruit diameter, for fruit weight, KS-5623 and KS-7840 for yield per plant, and KS-7840 and KS-7305 for Cercosporaleaf spot resistance. For many of the characters studied, the parents KS-5623 and KS- 7840 were found as good general combiners. Therefore, these parents may be exploited to develop productive new recombinations for optimum yield and desirable quality parameter. High GCA effects also cited by Ramesh et al. (1996) and Varshney et al. (1999).
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Genetic diversity analysis in selected germplasm lines of safflower (Carthamus tinctorius L.)

Genetic diversity analysis in selected germplasm lines of safflower (Carthamus tinctorius L.)

D2 analysis was carried out to analyze genetic divergence among these genotypes. The differences among the genotypes were significant for days to 50% flowering, plant height, number of capitula per plant, volume weight, 100 seed weight, oil content, plant spread and diameter of main capitula at maturity indicating the presence of wide genetic variability for these characters. Cluster analysis by the Tocher optimization method allowed the separation of 155 genotypes into eleven clusters (Table 1). The principle of this method is to maintain homogeneity within groups and also heterogeneity between groups. Cluster I comprised 60 genotypes. The next cluster was cluster II with 56 genotypes and cluster V with16 genotypes each respectively. Cluster III had 12 genotypes, while cluster VIII contained 5 genotypes. The clusters IV, VI, VII, IX, X, XI involved only a single genotype in the cluster. In cluster II check AKS-207, PKV Pink, Bhima, PBNS- 12 and in cluster V check A-1 were included.
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Stability for grain yield and its contributing traits in sesame (Sesamum indicum L.)

Stability for grain yield and its contributing traits in sesame (Sesamum indicum L.)

(cm), 1000 seed weight (cm) and Seed yield (g). Except days to 50% flowering and days to maturity, where data was recorded on plot basis, the data for rest of the morphological traits were recorded on randomly selected ten competitive plants in the middle 3 rows of each plot in all three replications. Seed yield was recorded on plot basis and converted to kg/ha. The recommended package of practices was followed to raise a good crop. The mean values of 10 samples, except for characters recorded on whole plot basis, were used for detailed statistical analysis. The data were subjected to analysis of variance as per the procedure suggested by Sukhatme and Amble (Sukhatme and Amble.1989). Genotype- environment interactions were found to be significant in respect of all the characters studied; and hence the data were subjected to stability analysis to assess the stability of different genotypes (Eberhart and Russell.1966). A genotype with regression coefficient of unity (bi =1) and the deviation not significantly different from zero (Š 2
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Genetic variability  and correlation studies for grain iron concentration and yield related traits in recombinant inbred lines of rice (oryza sativa l) grown under aerobic condition

Genetic variability and correlation studies for grain iron concentration and yield related traits in recombinant inbred lines of rice (oryza sativa l) grown under aerobic condition

DF: Days to flowering, DFF: Days to 50% flowering, DM: Days to maturity, PH: Plant height cm, NT: Number of tillers per plant, NPT: Number of productive tillers per plant, BP: Biomass pe[r]

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Analysis of Variability and Character Association in Indigenous Aromatic Rice (Oryza sativa L.)

Analysis of Variability and Character Association in Indigenous Aromatic Rice (Oryza sativa L.)

Sixty rice genotypes were evaluated during kharif 2013 for sixteen quantitative and quality traits to examine the nature and magnitude of variability, heritability, genetic advance and correlation. Analysis of variance revealed that the differences among sixty genotypes were significant for all the characters. The characters viz., number of effective tillers per plant, seeds per panicle and brown rice length exhibited high Genotypic Coefficient of Variation (GCV) and Phenotypic Coefficient of Variation (PCV). Small differences between GCV and PCV were recorded for all the characters studied which indicated less influence of environment on these characters. The characters viz., plant height, days to 50 per cent flowering, days to maturity and seeds per panicle exhibited high heritability coupled with high genetic advance indicating that simple selection could be effective for improving these characters. Grain yield per plant had significant and positive correlation with days to 50% flowering, days to maturity, plant height, effective tillers per plant, panicle length, seeds per panicle and kernel breadth after cooking.
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Article -   Char ac ter as so ci a tion stud ies in bot tle gourd [Lagenaria siceraria (Mol.) Standl.]

Article - Char ac ter as so ci a tion stud ies in bot tle gourd [Lagenaria siceraria (Mol.) Standl.]

Correlation and path analysis among different characters of twenty two bottle gourd genotypes were studied. Observations were recorded for the characters viz., days to first male and female flower appear, node number at which first male and female flower appear, days to 50% flowering, days to fruit set, number of branches per plant, days to first fruit harvest, fruit length (cm), average fruit weight (g), fruit girth (cm), number of fruits per plant, fruit yield (q/ha) and crop duration. Analysis of variance revealed that mean sum of squares due to genotypes was highly significant for all characters. Correlation studies revealed that fruit weight followed by number of fruits per plant had highest significant positive association with yield quintal per hectare. Path co-efficient analysis revealed maximum direct contribution towards yield quintal per hectare with of fruit weight followed by duration of crop, days to first female flower appears, number of fruits per plant, fruit girth.
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Evaluation of Hot Pepper Varieties (capsicum species) for Growth, Dry pod Yield and Quality at M/Lehke District, Tigray, Ethiopia

Evaluation of Hot Pepper Varieties (capsicum species) for Growth, Dry pod Yield and Quality at M/Lehke District, Tigray, Ethiopia

Abstract - A field experiment was conducted at Axum Agricultural Research Center, Rama irrigation site, to investigate the performance of different varieties of hot pepper for growth, dry pod yield and quality. The experiment was conducted from December2013 to June2014 under irrigated condition using five hot pepper varieties (Marekofana, MelkaShote, Melkaawaze, Melkazala and Melkaeshet).The experiment was conducted on a randomized complete block design with three replication. The result of the study showed significant difference on days of 50%flowering,days to 50%maturity,fruit length, fruit diameter, fruit weight, number of fruit per plant, plant height, marketable yield, unmarketable yield and total yield(Qt/ha).As a result the earliest variety to attain days to 50%flowering was Marekofana; the variety to attain shortest days to maturity were asMelkaShote and Melkazala, while the highest fruit number per plant was recorded at MelkaShote. On the other hand the widest fruit diameter was recorded at Melkaeshet and Marekofanavarieties;where the thinnest fruit size of was attained at MelkaShote. The highest marketable yield(Qt/ha) of hot peppers was recorded MelkaShote, Melkaawaze ,Melkafana, Melkazala and Melkaeshet respectively, while the highest total yield and pest tolerance MelkaShote followed by Melkaawaze. The highest yielding capacities were attributed to their early flowering and maturity, high marketable yield and total yield,dry weight content of the varieties as well as their reaction to disease and pests. Since this study was done two seasons at one location; it would be advisable to use MelkaShote and Melkaawaze varieties to M/Lehke areas or on this given area to gain higher yield.
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Genotype x environment interaction and stability analysis for yield traits in chickpea (Cicer arietinum L.)

Genotype x environment interaction and stability analysis for yield traits in chickpea (Cicer arietinum L.)

The present investigation was carried out during Rabi 2016-17 at five different locations in Chhattisgarh to determine the stability for days to 50% flowering, days to maturity, plant height, pods per plant, 100-seed weight (g) and seed yield (kg/ha). Analysis of variance revealed significant mean squares due to genotypes for all the traits indicated significant differences among the means. Mean squares due to Genotypes x Env. (linear) were significant for pods/plant and seed yield indicated that the varieties differed genetically for their regression on the environmental index and hence the performance is predictable in nature for pods/plant and seed yield. Mean squares due to individual variety have been tested against pooled error for the traits days to 50% flowering, days to maturity, plant height and 100-seed weight that exhibited significant mean squares due to pooled deviation. Mean squares due to pooled deviation were significant but mean squares due to Genotypes x Env. (linear) for days to 50% flowering, days to maturity, plant height and 100-seed weight indicated that variation in the performance of varieties is entirely unpredictable and hence varieties may perform better in the favorable environment for the traits. In the present investigation, varieties which showed significant regression tested for bi-0 for the traits were near to unity except for 100-seed weight in RG 2009-16, RG 2009-20 and RG 2010-11-1 which exhibited regression significantly differed to the unity (1-bi). For plant height varieties RG 2009-16 and RG 2015-08 exhibited high mean, regression coefficient near to unity and deviation from regression near to zero, hence may be considered as stable for the trait.
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Evaluation of  brinjal (Solanum melongena L) germplasm for yield and shoot and fruit  borer resistance under drip fertigation

Evaluation of brinjal (Solanum melongena L) germplasm for yield and shoot and fruit borer resistance under drip fertigation

drip fertigation. A random of five plants were marked for recording observations in each accession. The observations were recorded for the traits viz., plant height, number of branches / plant, plant spread, days to 50% flowering, days to first harvest, single fruit weight, fruit length, fruit girth, number of fruits / plants, yield per plants, shoot borer infestation, fruit borer infestation and marketable yield / plant. The morphological characters like leaf colour, stem colour, fruit colour, fruit shape, fruit size, stripedness, thorniness on the plant as well as on the calyx, calyx colour, glossiness of the fruit were also recorded for documentation.
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Productivity and economics of faba bean (vicia faba l ) in relation to integrated use of lime, blended fertilizer, biofertilizer and compost on acid soils of high lands in west showa zone of ethiopia

Productivity and economics of faba bean (vicia faba l ) in relation to integrated use of lime, blended fertilizer, biofertilizer and compost on acid soils of high lands in west showa zone of ethiopia

Application of lime (611 kg ha -1 ) increased the soil pH from initial extremely acidic soil pH (3.8) to medium and neutral range (pH 6.63 to 6.86), and thus indirectly favoured creation of more suitable medium for nutrient uptake by faba bean. This condition creates a conducive soil environment for the crops that enables efficient use of both organic and inorganic nutrients which ultimately resulted in better performance of yield and yield components of faba bean crop. Integrated use of lime together with recommended rate of organic and inorganic fertilizer significantly affected agronomic parameters (days to 50% flowering, days to 50% physiological maturity, plant height, number of pods, number of nodules , grain yield, straw yield, total biomass yield, and harvest index), though no significant difference was observed in parameters such as number of nodules, nodule fresh weight and nodule dry weight among treatments due to integrated use of biofertilizer (rhizobium strain EAL-110) either with organic or inorganic nutrient sources and lime. The findings of the study revealed that the growth, and yield of faba bean responded significantly to the integrated application of lime with organic and inorganic fertilizers, where in the highest yield (2882.87 Kg ha -1 ) was obtained with integrated use of lime together with full recommended dose of organic and inorganic nutrients. In terms of economics , application of lime at 611 kg ha -1 , rhizobia 500 g ha -1 plus 2.5 t ha -1 compost with 50 % of soil test based fertilizer recommendation (75 kg ha -1 NPSB, 50 kg ha -1 KCl) accrued the highest net return of 38834 ETB ha -1 with MRR of 1334 in faba bean.
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Combining Ability Analysis for Growth and Yield Components of Groundnut (Arachis hypogaea L.) in Sudan Savannah

Combining Ability Analysis for Growth and Yield Components of Groundnut (Arachis hypogaea L.) in Sudan Savannah

Data were recorded on some agronomic traits such as days to 50% emergence, days to 50% flowering, number of pods per plant, pod weight, number of seeds per pod and grain yield. Analyses of variance (ANOVA) were performed using SAS 9.4 (SAS Institute Inc., Cary, NC). Genotype was considered as fixed effect while replications was considered as random factors. The line × tester analysis was performed using SAS software.

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Studies on correlation and path analysis in exotic Genotypes of Italian millet [Setaria italica (L.) Beauv]

Studies on correlation and path analysis in exotic Genotypes of Italian millet [Setaria italica (L.) Beauv]

Thirty four exotic genotypes of Italian millet studied for correlation and path coefficient analysis during kharif and rabi. The investigation during kharif revealed positive significant correlation of days to 50% flowering, plant height, days to maturity, number of productive tillers per plant, ear length, ear weight and straw weight with yield per plant where as during rabi besides these characters flag leaf area and 1000 grain weight were also observed to influence yield. The association of protein content and calcium content with grain yield was in negative direction. The association of carotene with grain yield was negative in during kharif only. So simultaneous improvement of these traits along with grain yield may not be possible. The study indicated that direct selection based on the characters, number productive tillers per plant during kharif whereas in rabi ear weight and straw weight are effective as the association and direct effects were positive for these traits during both the seasons.
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Heterosis studies in sesame (Sesamum indicum L.)

Heterosis studies in sesame (Sesamum indicum L.)

differences among the genotypes for all the characters studied indicating the presence of sufficient variability among the genotypes. Further, partitioning of mean sum of squares for parents and hybrids, the differences among the parents were also found significant for all the characters except days to 50% flowering, width of capsule and oil content. The differences among the hybrids were also found significant for all the characters suggesting the presence of sufficient diversity among hybrids themselves for all the characters. The mean squares due to parents vs hybrids were also found significant for the six characters viz., days to 50% flowering, days to maturity, number of internodes per plant, length of capsule, number of capsules per plant and seed yield per plant indicated that performance of parents was different than that of hybrids as well as presence of overall heterosis (Tabe 1).
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Genetic variability, heritability and genetic advance studies in vegetable cowpea [Vigna unguiculata (L.) Walp.]

Genetic variability, heritability and genetic advance studies in vegetable cowpea [Vigna unguiculata (L.) Walp.]

was surrounded by two guard rows to avoid damage and border effects. The recommended package of practices was followed for raising a healthy crop. The observations were recorded on five randomly selected plants in each genotype from each replication and their mean values were used for the statistical analysis for twelve characters viz., days to 50% flowering, days to first green pod picking, number of primary branches per plant, plant height (cm), pod length (cm), pod width (cm), number of seeds per pod, number of pods per cluster, pod weight (g), hundred fresh seed weight (g), number of pods per plant and green pod yield per plant (g). The data were subjected to different statistical analysis viz., analysis of variance, magnitude of genetic variability were performed following the standard procedures, phenotypic (PCV) and genotypic (GCV) coefficients of variation were estimated as suggested by Burton (1952), heritability (broad sense) and genetic advance as followed by Allard (1960).
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Article: Morphological characterization of NERICA mutant lines and their parents

Article: Morphological characterization of NERICA mutant lines and their parents

Phenotypic variance was higher than the genotypic variances for all the traits thus indicated the influences of environmental factor on these traits. Coefficient of variation studied indicated that phenotypic coefficient of variation (PCV) were higher than the corresponding genotypic coefficient of variation (GCV) for all the traits (Table 5) indicating that they all interacted with the environment to some extent. Among the all traits number of unfilled grains panicle -1 (34.90 and 37.94%) exhibited high estimates of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) followed by effective tillers hill -1 (34.29 and 35.91%) and total tillers hill -1 (17.65 and 20.38%). On the other hand, 100-seed weight showed very close GCV and PCV (13.13 and 13.16%). 100-seed weight (13.13 and 13.16%) and filled grains panicle -1 (13.95 and 16.06%) showed moderate value of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV). Days to 1st flowering (6.34 and 6.45%), days to 50% flowering (5.83 and 6.00%), days to 80% flowering (5.71 and 5.85%), days to maturity (5.04 and 5.15%), plant height (9.19 and 9.43%), panicle length (2.63 and 3.59%) exhibited low genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV).
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Genetic Analysis of Lentil (Lens Culinaris) Exotic Germplasm to Identify Genotypes Suitable for Mechanical Harvesting

Genetic Analysis of Lentil (Lens Culinaris) Exotic Germplasm to Identify Genotypes Suitable for Mechanical Harvesting

For this study, 36 genotypes were used that are acquired from International Centre for Agriculture research in Dry areas (ICARDA). The germplasm was evaluated in Randomized complete Block Design with two replications during the Rabi season of 2016-17 (Table 1). Two rows of each entry were planted having row-row distance of 30cm with 5cm plant to plant distance and 4m row length. All the recommended cultural practices were followed to raise the healthy crop. Days to 50% flowering and days to 90% maturity were recorded on the plot basis. Five guarded plants in each plot were used to record the plant height, lowest pod height, grain yield, seed size, seed color, lodging and pattern of testa. The data were recorded according to the lentil descriptor published by IBPGR and ICARDA in 1985 (Table 2).
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Trait association and path coefficient analysis for yield and yield attributing traits in sesame (Sesamum indicum L.)

Trait association and path coefficient analysis for yield and yield attributing traits in sesame (Sesamum indicum L.)

findings of Godawat and Gupta (1986), Li (1988), Li and Zhang (1991) and Janardhanan et al. (1981). The indirect effect of days to 50% flowering, days to maturity, plant height, distance from ground to first capsule, number of branches per plant, capsule length, number of seeds per capsule via other characters was not considerable but the indirect effect of number of capsules per plant via days to 50% flowering, plant height, number of branches per plant on seed yield was high and positive, while it exerted a negative indirect effect via 1000 seed weight was also high followed by 1000 seed weight also exerted positive indirect effect via number of seeds per capsule was high.
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Combining ability analysis in Safflower (Carthamus tinctorious L.)

Combining ability analysis in Safflower (Carthamus tinctorious L.)

The parents GMU5267 and GMU7359 had good per se performance (51.10 and 59.73) and gca effect (6.50 and 10.31), respectively; which were show good general combiners for seed yield, biological yield, number of primary branches per plant, no. of secondary branches per plant and no. of effective capsules per plant (data not shown). The estimates of gca effects (Table 3) on the basis of pooled analysis revealed that no single parent was a good combiner for all the characters studied. Parents, GMU5267 and GMU7359 proved to be good general combiner for seed yield per plant, biological yield per plant, number of primary branches, number of secondary branches and number of effective capsules per plant. In addition to the above, GMU5267 was also a good combiner for plant height and days to maturity and GMU7359 for 100-seed weight. Besides these two parents, GMU3955, GMU5712 and GMU5815 were good general combiners for seed yield per plant, biological yield per plant. GMU3955 and GMU5815 were also good combiners for plant height, harvest index and oil content. In addition to above some of the other parents were good general combiners for trait like harvest index, days to 50% flowering and oil content (GMU3806); days to 50% flowering, days to maturity, harvest index, number of primary branches per plant and number of effective capsules per plant (GMU5394). Parents, GMU196, GMU217, and GMU264 were good combiners for 100-seed weight whereas,
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Genetic Variability, Heritability and Genetic Advance In Tomato (Solanum Lycopersicon Mill.)

Genetic Variability, Heritability and Genetic Advance In Tomato (Solanum Lycopersicon Mill.)

The analysis of variance indicated significantly higher amount of variability present among the genotypes for all 21 characters at 1% and 5% probability level (Table 1). The mean performance and range of the genotypes for variability and estimates of different genetic variability parameters are presented in (Table 2).The range of variability was highest for number of fruits per plant (34.63-163.46), followed by number of seeds per fruit (20.9-157.66), plant height (43.4- 123.66), days to fruit maturity (78.5-87.7), days to 100% fruit setting (69.4-79.4), average fruit weight (8.33- 69.3), days to 50% fruit setting (57.66-66.4), days to 50% flowering (50.7-59.3) number of fruiting cluster per plant (8.26-42.6), number of secondary
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Diversity in Sesame Accessions

Diversity in Sesame Accessions

cultural practices were followed during cultivation and irrigations were applied whenever the soils become very dry. All recommended package of practices were followed during the conduct of experiment. Observations were recorded on the basis of five random competitive plants selected from germplasm in every replication for seed yield and its attributing characters. The observations recorded on 8 morphological traits namely plant height (cm), days to 50% flowering, days to maturity, number of primary branches/plant, number of capsules/ plant, capsule length (cm), 1000 seed weight (gm) and seed yield/plant (gm). Statistical analysis was computed in SPSS 21.0 to cluster the genotypes based on genetic similarity. Genotypic coefficient of variation, phenotypic coefficient of variation, heritability (broad sense) and genetic advance was measured by the methods described Burton (1968) and Hanson et al. (1956). The PCA analysis reduces the dimensions of a multivariate data to a few principal axes, generates an Eigen vector for each axis and produces component scores for the characters (Sneath et al. 1973; Ariyo and Odulaja 1991).
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