oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
The Effect of Rhizobium spp. Inoculation on Seed Quality of Bean in Turkey  [PDF]
Cigdem KuCuk,Merih KivanC
Pakistan Journal of Biological Sciences , 2008,
Abstract: Rhizobium spp. (local isolate) was used to inoculate three bean (Phaseolus vulgaris L.) varieties; Akman 98, Goynuk 98 and Sehirali 90, in a factorial field experiment. The objective of the experiment was to study effect of inoculation on seed yield, protein range, seed weight, non-soaker capacity and hydration index. Rhizobium spp. inoculation and nitrogen fertilizer significantly increased characters tested. This study revealed that inoculation with Rhizobium spp. improved seed quality.
Association and Path analysis for seed cotton yield improvement in interspecific crosses of Cotton (Gossypium spp)
K. Thiyagu, N. Nadarajan, S. Rajarathinam, D. Sudhakar and K. Rajendran
Electronic Journal of Plant Breeding , 2010,
Abstract: Correlation studies made with parents, F1’s of 15 (lines) × 4 (testers) and one check hybrid (TCHB 213) in interspecificcrosses of cotton (Gossypium spp) revealed that plant height, number of sympodial branches per plant, number of bolls perplant along with 2.5 per cent span length, bundle strength and elongation percentage showed significant positive associationwith seed cotton yield per plant at genotypic level indicating that these characters can be improve simultaneously. The directand indirect effect of path analysis revealed that the number of bolls per plant, boll weight, number of sympodial branchesper plant, plant height, 2.5 per cent span length, bundle strength, elongation percentage, lint index and seed index are themajor yield contributing traits in interspecific crosses and should be considered for improving yield under wide hybridizationin cotton. The correlation and path co-efficient analysis revealed that simultaneous selection based on plant height, numberof bolls per plant, number of sympodial branches per plant, 2.5 per cent span length, bundle strength and elongationpercentage may be promising in improving the seed cotton yield per plant.
Correlation and Path Coefficients of Seed and Juvenile Characters with Respect to Latex Yield in Hevea brasiliensis Muell. Arg
Omokhafe, KO.,Alika, JE.
Tropicultura , 2003,
Abstract: Ten Hevea clones were evaluated for direct and indirect effects of sixteen seed and juvenile characters on latex yield. Each clone was evaluated for five juvenile characters, eleven seed characters and latex yield. Genotypic variance and correlation were obtained through analysis of variance and covariance respectively. Phenotypic correlation was calculated as simple correlation of clonal means. The phenotypic correlation of each seed and juvenile character with latex yield was partitioned into direct and indirect effects through path analysis. The most reliable character for indirect selection for latex yield was ratio of seed length/width, which had relatively high direct effect and significant phenotypic and genotypic correlation with latex yield. This relationship had the stabilizing influence of ratios of seed/shell weight and seed weight/volume. The pattern of use of effect coefficients for simultaneous improvement of latex yield and associated characters is provided.
Genotypic and Phenotypic Correlation Analysis of Some Quality Characters and Yield of Seed Cotton in Upland Cotton (Gossypium hirsutum L.)  [PDF]
S. Haidar,M. A. Khan
Pakistan Journal of Biological Sciences , 1998,
Abstract: The study was undertaken to determine genotypic and phenotypic correlations between some quality characters and yield of seed cotton. Seed index and fibre fineness had negative genotypic and phenotypic correlation with yield of seed cotton which is significant at genotypic level. Lint index and staple length had positive genotypic and phenotypic correlation with yield of seed cotton. Seed index had negative genotypic and phenotypic correlation with staple length which is significant at genotypic level while positive and significant genotypic and phenotypic correlation with lint index. Lint index had negative genotypic and phenotypic correlation with fibre fineness.
Association of Seed Cotton Yield with Other Quantitative Plant Characters of Gossypium hirsutum L.
F. M. Azhar,S. S. Hussain,A. I. Khan
Pakistan Journal of Biological Sciences , 1999,
Abstract: The experiment on relationship of seed-cotton yield with other quantitative characters of G. hirsutum L. showed that number of bolls and staple length had strong and positive association with seed-cotton yield. Ginning percentage also exhibited positive relationship with yield but it was very weak. Coefficient of determination (r2) revealed that, in the plant material studied, 90 per cent of the variability in seed-cotton was due to number of bolls and 10 per cent was caused by staple length. These results suggested that plant material had potential for improving seed-cotton yield by selecting plants with increased number of bolls and enhanced staple length.
Effects of Salinity on Yield and Component Characters in Canola (Brassica napus L.) Cultivars  [cached]
Ahmad BYBORDI
Notulae Scientia Biologicae , 2010,
Abstract: Cultivars ‘Okapi’, ‘SLM046’, ‘Elite’, ‘Fornax’ and ‘Licord’ Brassica napus were tested for yield and component characters under different levels of salinity. The variations due to salinity levels, cultivars and cultivarxsalinity (interaction) were significant for different characters. The variable degrees of increase and decrease of regression coefficient estimate mates (curve estimation) showed the performance as influenced by different salinity levels. The performance of Brassica napus variety in plant height and days to first flowering was the best for ‘SLM046’, ‘Okapi’ ‘SLM046’ and ‘Okapi’ cultivars. ‘SLM046’ showed the best performance in days to maturity, followed by ‘Licord’ and ‘Elite’. ‘Okapi’ performed better than others regarding the increased number of seeds per plant and seed yield per plant, followed by ‘Fornax’. Considering all characters, the most tolerance ability was found in ‘SLM046’ and ‘Okapi’, against different levels of salinity.
Salinity Effect on Yield and Component Characters in Rapeseed and Mustard Varieties  [PDF]
M. R. Islam,M. A. R. Bhuiyan,B. Prasad,M. H. Rashid
Journal of Biological Sciences , 2001,
Abstract: Varieties Rai-5, Shambal and Daulat of Brassica juncea and varieties Barisarisa-7 and Barisarisa-8 of Brassica napus were tested for yield and component characters under different levels of soil salinity. The variations due to salinity levels, varieties and variety-salinity (interaction) were significant for different characters. The variable degrees of increase and decrease of regression coefficient estimates (curve estimation) indicated the performance as influenced by different salinity levels. The performance of the variety Barisarisa-7 in plant height and days to first flowering is the best followed by Barisarisa-8 and Daulat. Barisarisa-8 showed the best performance in days to maturity followed by Barisarisa-7 and Shambal. Shambal followed by Daulat and Barisarisa-7was performed incase of number of siliqua per plant. Daulat performed better than others incase of seed per plant and seed yield per plant followed by Rai-5. Considering all the characters the most tolerance ability was found in Daulat under B. juncea and Barisarisa-7 under B. napus which were followed by Barisarisa-8 of B. napus against different levels of salinity.
Genetic variability studies in Moth bean germplasm for seed yield and its attributing characters
Yogeesh L.N1, Viswanatha K.P2, Ravi B.A3and Gangaprasad S
Electronic Journal of Plant Breeding , 2012,
Abstract: Moth bean is a drought tolerant pulse crop grown in arid and semiarid regions of India. Genetic variability for yield and itscomponent characters was studied in moth bean germplasm collected from different geographical regions of India. Analysis ofvariance showed the presence of significant variability among the genotypes studied and for all the traits excluding 100 seedweight. The estimates of PCV and GCV were high for plant height, primary branches per plant, secondary branches per plant,100 seed weight, pods per plant and seed yield per plant. High heritability and Genetic Advance was observed for days to 50 percent flowering, plant height, secondary branches per plant, pod length, pods per plant and seed yield characters studied offeringscope for improvement of these traits through simple selection.
Investigations on the Heritability of Seed Cotton Yield, Yield Components and Technological Characters in Cotton (Gossypium hirsutum L.)
Sema Basbag,Oktay Gencer
Pakistan Journal of Biological Sciences , 2004,
Abstract: This study was carried out to determine the yield, yield components and the quality characters of two cotton cultivars Ogosta 644 and Sayar 314 and their generations of F1, F2, BC1P1, BC1P2 obtained by crossing them in the years between 1996-1998 in Diyarbakir. In the study, the number of boll per plant, seed cotton weight of per boll, seed cotton yield, plant height, rate of first picking, ginning turnout, 100 seed weight, fibre fineness, fibre length and fibre strength were determined and heterosis, heritability, F2 depression, F2 deviation were estimated. As a result, it was determined that seed cotton weight of per boll, 100 seed weight, fibre fineness and fibre strength had high heritability degrees, the number of bolls per plant had lower heritability degrees, while the other characters had moderately heritability degrees. The characters which were high heritability degrees have been suggested some possibilities in obtaining required genotypes by selection in early generations (F2, F3); delayed selection which had low heritability strongly recommended for some characteristics.
Effect of Different Level of Seed Borne Infections on Fibre Yield Contributing Characters of Jute (Chorcorus cpasulris L.)  [PDF]
M.M. Islam,K. Sultana,M.G. Mostafa,H.A. Begum
Plant Pathology Journal , 2003,
Abstract: A study was under taken to measure the effects of different level of seed borne infections on the fibre yield contributing characters of jute at Kishoreganj regional station of BJRI. Varieties D-154 and BJC-7370 were selected for this study. Infected seeds of the above two varieties were collected from JAES, Manikganj and categorized on the basis of seed-borne pathogens viz. 0, 5, 10, 15 and 20% infected seeds. Findings revealed that, both D-154 and BJC-7370 of jute had less seedling emergence in the field with the increase of initial seed borne infections. Stem rot, black band and anthracnose diseases were noticed after one month of seed sowing in the fields. As the initial seed borne infections increases, disease development in the field also increases. Fibre yield contributing characters (plant height and base diameter) and fibre weight decreases with the increase of initial seed borne infections.
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.