ABSTRACT
Pod fly, Melanagromyza obtusa is an important emerging pest and a major constraint to increase the production and productivity of pigeonpea. The concealed mode of life of pod fly within the pod makes it difficult to control. Hence, host plant resistance is an important tool for the management of this pest. Therefore, a set of forty genotypes were screened for resistance to pod fly under field conditions and characterized for morphological and biochemical traits in the pods. The correlation studies revealed that, among morphological and biochemical constituents of pigeonpea, pod length (r=0.389*), pod width (r=0.380*), protein content (r=0.857**), total carbohydrates (r=0.782**), reducing sugars (r=0.848**) and total free amino acids (r=0.832**) in the pod walls were positively correlated with per cent pod damage, whereas pod wall thickness (r= -0.762**), trichome density (r= -0.745**) and phenol content (r= -0.871**) had significant negative correlation with pod fly damage. Therefore, these traits can be used as phenotypic and biochemical markers to identify pigeonpea genotypes with resistance to M. obtusa, and use in pod fly resistance breeding program.
ABSTRACT
Ameloblastoma is a true neoplasm of odontogenic epithelial origin. Its incidence, combined with its clinical behavior, makes ameloblastoma the most significant odontogenic neoplasm. Unicystic ameloblastoma refers to those cystic lesions that show clinical, radiographic or gross features of a jaw cyst but on histologic examination show a typical ameloblastomatous epithelium lining the cyst cavity, with or without luminal and/or mural tumor proliferation. As this tumor shows considerable similarities with dentigerous cysts, both clinically and radiographically the biologic behaviour of this tumor group was reviewed. Unicystic type has a considerably better overall prognosis and a much reduced incidence of recurrence compared with conventional ameloblastoma.
ABSTRACT
An experiment was conducted with four dates of sowing (Second fortnight of May, First fortnight of June, Second fortnight of June and First fortnight of July) and four Varieties (TMV-2, JL-24, Narayani and Abhaya). There was wide variation in the weather conditions that prevailed over the cropping periods between the two years of experimentation. During the first year (2006) a continuous dryspell of 51 days prevailed which coincided with different growth stages of groundnut under different dates of sowing. This dry spell has not favoured the growth and development of crop, instead, it has increased the crop duration of different varieties of groundnut studied under the present investigation. The crop duration was 139-146 days in early sown crop to 110-125 days in normal sown crop compared to normal duration of 105 to 120 days. However, the second year (2007) is normal with better temporal distribution of rains and the crop duration ranged from 104-120 days in early sown crop to 108-121 days under normal sown crop. The length of growth period in 2006 is due to receipt of continuous rains after dry spell of 51 days from seed development phase to physiological maturity. In 2007,the crop which received heavy rains (22 June sown crop ) from 90 DAS to harvest was adversely affected resulting poor filling and low yields. The results revealed that Sowing during July first fortnight was found to be optimum time for groundnut during drought year, while during normal year advancing the sowing date by one month may also favour good crop provided there were good rains. The performance of Abhaya cultivar was better than the Narayani, TMV-2 and JL-24 under different kinds of environments like extreme moisture stress, stress free or even under moderate stress conditions. However, in normal year TMV-2 and JL-24 performance was also good compared to drought year.
ABSTRACT
Gingival hyper pigmentation is of prime aesthetic concern reported by many young patients, in day to day dental practice. Gingival depigmentation is a periodontal plastic surgical procedure whereby the gingival hyperpigmentation is removed or reduced by various techniques. Recently, laser ablation has been recognized as one of the most effective, comfortable and reliable techniques. The present case report showcases the effectiveness and thoroughness of gingival depigmentation and crown lengthening carried out with a diode laser. Depigmentation with , diode lasers can be used in periodontics because of their excellent soft tissue ablation and haemostatic characteristics.