http://ir.lib.ruh.ac.lk/handle/iruor/19213 Thu, 09 Apr 2026 01:14:19 GMT 2026-04-09T01:14:19Z http://ir.lib.ruh.ac.lk/handle/iruor/19638 Characteristics associated without crossing in a short duration improved rice (oryza sativa l) varietyat307. Kumara, A.P.A.; Dahanayake, N.; Phathinayake, B.D.; Senanayake, S.G.J.N. Rice is considered as self-pollinated crop but out-crossing is possible. At307 is a high yielding, 90d variety developed at the Rice Research Station, Ambalantota, Sri Lanka possessing good attributes to be recommended as a commercial variety in Sri Lanka. It contains both Indica and Japonica germplasms. At307 has failed to pass the seed certification several times due to lack of its genetic purity perhaps due to out-crossing nature, or mechanical mixing. Therefore the present study was conducted to investigate the characteristics associated with out-crossing of At307. Comparison was done with Bg300, Bg304, At303 and At306 improved 90d rice varieties at Ambalantota rice research station during the Yala season, 2010. Out crossing mainly depends on flowering behavior, floral characteristics of male and female parts and variation in environmental factors. Varietal differences were found to be significant at 5% probability level for spikelet open angle. But spikelet open duration, numbers of spikelet per panicle (NS/P), stigma exsertion percentage, flowering period of plant, culm length), panicle length. Flowering period of panicle, angle of flag leaf, length of flag leaf and width of flag leaf were not significantly different among five selected rice varieties. Out-crossing associated characters of At307 were normal except spikelet opening angle. Increased exposesthe stigma more to alien pollens resulting emerges off-typesin future generation of At307. Tue, 25 Mar 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19638 2014-03-25T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19630 Job satisfaction of agriculture graduates working under government graduate scheme Sandika, A.L.; Kalansuriya, N.K. This study attempted to investigate the job satisfaction of Agricultural Graduate (AG) employed under the Government Graduate Scheme using a structured pre-tested questionnaire. The aims of the study were to identify problems faced by the AG and to suggest appropriate measures to enhance their job satisfaction. Fifty AG were selected from provincial and inter-provincial government institutes to collect the primary data. Respondents were classified into three levels of job satisfaction such as satisfied, indifferent and dissatisfy. Majority of AG (68%) were in the dissatisfaction level while 28% indicated indifferent level and only few (4%) found to be satisfied in their assigned jobs.We used the Frederick Herzberg’s Motivator and Hygiene factors to determine the job satisfaction of AG. A majority of AG fell into dissatisfaction level regarding Hygiene factors of Herzberg’s Motivation theory such as salary (Mean = -0.59, SD = 1.1), payment relate to education level (Mean = -1.14, SD = 0.89), performance appraisal (Mean = -0.77, SD = 0.97), availability of facilities / resources at work place (Mean = 0.14, SD = 0.94), recognition for creative works (Mean = -0.18, SD = 1.01), scope to prove excellence in doing the job (Mean = 0.09, SD = 1.01), opportunitiesfor higher education and trainings (Mean = -0.45, SD =1.06) and promotion opportunities(Mean = - 1.18, SD = 1.14). Nevertheless, respondents were in the satisfaction level on motivators factors such as regards guidance given by superiors to improve job (Mean = 0.23, SD = 0.87), with the flexibility that AGs have been given by their superior (Mean = 0.32, SD = 1.09), distance from office to house (Mean = 0.27, SD = 1.24), opportunities provided to utilize personal skill (Mean = -0.05, SD = 1.05), recognition from superior officers for good work done (Mean = 0.09, SD = 1.02), mutual understanding with the co-workers (Mean = 1.05, SD = 0.65) and flexibility to engage with family responsibilities, children’s education etc. (Mean = 0.27, SD = 1.08). Result of this study showed that salary and awareness about job description had showed positively significant relationship with job satisfaction while experience had showed negatively significant relationship with job satisfaction. Other personal and job related variables were not correlated with job satisfaction. Thu, 06 Feb 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19630 2014-02-06T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19628 SFR6 protein of freezing tolerance in arabidopsis does not affect localization of CBF1 protein Wathugala, D.L.; Heather Knight; Marc R. Knight SFR6 (SENSITIVE TO FREEZING6) is one of plant mediator proteins which has been identified first with its involvement to tolerance against freezing in Arabidopsis. The freezing sensitive sfr6 mutant is lack of expression of downstream genes in CBF cold response pathway. SFR6 also mediates tolerance to osmotic stress induced by drought and salinity. However, sfr6-1 mutant shows normal levels of CBF gene expression suggesting that SFR6 acts downstream of CBF transcription. The over-expression of CBF1 and CBF2 in the sfr6-1 mutant did not increase downstream cold gene expression. Further, SFR6 does not affect the level of accumulation of CBF protein suggesting that SFR6 may effect on localization of CBF proteins in Arabidopsis. Therefore, the localization of CBF1 protein in the sfr6-1 mutant was examined in this study. sfr6-1 and Col-0 plants were crossed with wild type plants over-expressing 35S::CBF1::GFP and F3 generation was used to visualize CBF1 localization. However, the localization of CBF1 protein was not altered in sfr6-1 mutant compared to the wild type Arabidopsis indicating that the involvement of SFR6 for COR gene expression needs to be further studied. Mon, 27 Jan 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19628 2014-01-27T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/19627 Quality of minimally processed, modified atmosphere stored bell pepper, as affected by pre-treatments Ediriweera, S.; Abeywickrama, K.; Latifah, M.; Othaman, F.; Wan Hussin, R.; Tham, S. Minimally processed bell pepper strips stored at 8-100C for seven days were evaluated for variation in color, in package gases, firmness, physicochemical sensory and microbiological quality. Bell pepper strips were treated with sodium chloride, calcium chloride, sodium chloride+calcium chloride or distilled water (control) and packed in polystyrene packages before storage. Pretreatments did not drastically affect the physicochemical properties (titratable acidity (TA), total soluble solids (TSS) and pH) when compared to the control. A slight discoloration of bell pepper was evident, indicated by decreasing L*, a* and b* values. Variations in firmness were observed. Fairly high level of CO2 accumulation was evident inside packages where O2 concentration displayed a declining trend. Sensory attributes generally declined with time but were within acceptable limits. Microbial counts were within safe-to-consume limits for all samples within the storage period. All pretreatments tested had no drastic effect on sensory properties and maintained low microbial counts, however 1% sodium chloride pretreatment was more successful in retaining higher sensory properties and maintaining lower microbial counts by the end of storage period than the other pretreatments Thu, 06 Feb 2014 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/19627 2014-02-06T00:00:00Z