ABSTRACT
Creation of genetic variability and development of varieties having higher yield potential depends on information about nature of gene action. The present investigation was undertaken to decipher the nature of gene action and allied genetic parameters involved in the inheritance of yield and yield-related component traits in opium poppy (Papaver somniferum L.). The biparental inbreeding progenies derived from four segregating base populations of crosses NB-1Kr40-3/3×NB-1Kr30+0.2-2/1, NB-5Kr40-7/2×58/1, NB-1Kr30+0.2-2/1×58/1 and NB-Kr40-3/3×NB-5Kr40-7/2 of opium poppy were analysed to study the gene actions involved in the inheritance of yield and component traits. Additive component of variance played a predominant role in North Carolina design (NCD)-I, while both additive and dominance genetic components were found important in NCD-III design. The presence of additive as well as nonadditive components of variance suggested that one or two generations of intermating in further generations followed by selection may lead to development of novel genotypes.
ABSTRACT
Introduction: An endodontic-periodontic lesion becomes a challenge for a clinician to diagnose and manage. when it comes to combined endodontic-periodontic lesion the most common treatment alternative is extraction and replacement with prosthesis. With numerous complications associated with prosthesis as well as patient's desire to retain natural teeth make it most important task for clinicians to conserve such teeth. Method: Four patients were included in this case series. Cases were treated with endodontic and periodontic treatment sequentially as per the guidelines. Results: After a follow-up period ranging from 6 months to 2 years, it was observed that all teeth remain asymptomatic and in normal function. Conclusions: This case series shows that it is possible to change the prognosis of teeth affected by combined endodontic-periodontal lesions, provides that correct diagnosis and proper oral hygiene maintenance is implemented