Kumar A.,Institute of Forest Productivity
Phytoparasitica | Year: 2014
The nature of damage, seasonal incidence, developmental period and morphometrics of Cochlochila bullita (Stål) (Heteroptera: Tingidae) were studied on Ocimum sanctum L. in Jharkhand province of India. The infestation of C. bullita started in June and continued until December on O. sanctum. The highest population of C. bullita per twig was found to be 63.8 in 2011 and 71.2 in 2012, in the months of August and September, respectively. The highest per leaf population of C. bullita was observed in the month of September in both years. The adults and nymphs of C. bullita were found feeding gregariously on the tender leaf and shoot, and laid eggs - mostly single, but sometimes in groups. Pre-oviposition period, oviposition period and egg incubation period of the bug were 3.37, 15.56 and 6.06 days, respectively, whereas the nymphal period was 11.50 days and the adult period was 21.18 days. This is the first report of feeding of C. bullita on O. sanctum from Jharkhand, India. © 2013 Springer Science+Business Media Dordrecht.
Divakara B.N.,Institute of Forest Productivity |
Alur A.S.,Indian International Crops Research Institute for the Semi Arid Tropics |
Tripati S.,Indian International Crops Research Institute for the Semi Arid Tropics
International Journal of Plant Production | Year: 2010
Screening of twenty-four candidate plus trees from naturally available Pongamia pinnata genetic resources was carried out to elucidate the genetic variation and relationship of pod and seed traits on germination capacity to select the best planting material for higher productivity. The experiment conducted at Forest Research Centre, Institute of Forest Productivity Mandar, Ranchi during 2005-2006. Variability studies reveled that, genotype CPT-19 recorded maximum values for six traits viz. pod length (65.64 mm), 100-pod weight (542.35 g), 2D surface area (351.18 mm2), seed length (27.93 mm), 100-seed weight (202.89 g) and total oil content (44.33%). However, maximum pod thickness (12.72 mm), seed length (17.49 mm), pod-seed ratio (2.89) germination capacity (94.67%) was recorded by the genotype CPT-6. The phenotypic and genotypic coefficients of variations were also close to each other for all traits, but 100-pod weight and 100-seed weight exhibited higher phenotypic coefficients of variation and genotypic coefficients of variation than the other traits. Estimates of broad sense heritability ranged from 0.82 (for seed length) to 0.98 (for 100-pod weight), genetic advance as percent of the mean ranged between 12.30% and 46.04% with seed length giving the lowest value and 100-pod weight giving the highest value. Germination capacity exhibited positive significant correlation with pod width, 100-pod weight, 2D surface area and seed width at both genotypic and phenotypic level. However, pod length, pod thickness and 100-seed weight expressed positive significant correlation only at genotypic level. Path analysis of pod and seed traits revealed that, the 100-pod weight (0.909) is the most pronounced character contributing directly to germination capacity followed by seed length (0.785) and pod length (0.324). In conclusion, the results revealed the existence of substantial genetic variation, which can be utilized for genetic resources conservation in gene bank and further tree improvement programmers of the species.
Bharti S.,Institute of Forest Productivity |
Bhushan B.,Institute of Forest Productivity
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2015
Zanthoxylum armatum DC. (Family: Rutaceae) is a branched, scandent, or erect shrub or a small tree, 6 m tall or more, with dense foliage and found in the hot valleys of the Himalayas from Jammu to Bhutan and in Eastern Ghats in Orissa and Andhra Pradesh in India, Nepal and Pakistan. The plant has been commonly used in traditional system of medicine for the treatment of fever, skin sensitivity, anti-inflammation, chest infection, Dental problems, and digestive problems and in scabies. In view of the immense medicinal importance of Z. armatum, this review was aimed at compiling all currently available botanical, phytochemical, pharmacological and ethno-medicinal information on Z. armatum. Information in the biomedical literature has indicated the presence of a variety of medicinally-important chemical constituents in Z. armatum. Pharmacological studies by various groups of investigators have shown that Z. armatum possesses significant biological and pharmacological activities, such as antibacterial, antifungal, antiviral, anti-inflammatory and antioxidant properties.
Kumar A.,Institute of Forest Productivity |
Das R.,Institute of Forest Productivity
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | Year: 2013
Melie dubia Cav. (syn. M. composita), the fastest growing tree belongs to the family Meliaceae. It has the potential to be utilized as energy crop, pulp wood, ply wood, timber and also as medicine. This species is native to India and widely distributed in the tropical moist deciduous forests. The utilization of the species is widely taken up in the plains of India as a short rotation crop for pulp and paper industries and also as a potent species under agroforestry systems. The potential of the species is not yet utilized in North-Eastern region, whereas, it is being harvested in a disorganized manner leading to fast disappearance. Its conservation in natural habitat and also outside is very much essential to meet the demand of the people with the changing land use pattern. This study discusses the various strategies required to conserve germplasm of the species. © Global Science Publications.
Singh S.,Institute of Forest Productivity |
Ansari S.A.,Institute of Forest Productivity
Annals of Forest Research | Year: 2014
Callusing and root induction in air layering was evaluated aiming at evolution of procedure for mass clonal propagation of mature ortets of five tropical broadleaf species differing in their potential for adventitious root formation in shoot cuttings as: Anogiessus latifolia < Boswellia serrata < Dalbergia latifolia < Gmelina arborea < Dalbergia sissoo. Two experiments were conducted in rainy season during consecutive years; without application of growth regulators in the first year and with growth regulators (T1 - water, T2 - 100 ppm indole-3-acetic acid, T3 -100 ppm thiamine- HCl and T4 -combination of T2 + T3) in the next year. Air layered branches were detached from the trees to record percentage of alive airlayers, callusing and rooting (%) as well as root number and root length. Response to air layering was found to be highly variable in five tree species but appeared to be feasible procedure for clonal propagation of mature ortets of B. serrata and D. sissoo with 100% (in auxin + thiamine treatment) and 83.3% (in auxin treatment) success, respectively. Maximum callusing (%) was found in D. latifoliawhile no callusing was observed in D. sissoo, which is most easy-to-root among all five species. Callus formation impedes adventitious rhizogenesis in air layers as significant negative correlation of callusing (%) and adventitious root formation was recorded in air layers of five tropical broadleaved tree species. Application of exogenous auxin alone or in combination with thiamine circumvents callusing to ensure direct development of roots for successful air layering.