Vijay Khosla , K. S. Pant , Sumeet Gairola

Abstract

The study was conducted on ischolar_maining of stem cuttings of J. curcas with different concentrations of IBA solutions under open nursery conditions in quick dip method for 10 seconds during Rainy (July-Sept.) and Winter (Feb.-April) seasons. Application of IBA does not have significant effect on promotion of ischolar_maining in Jatropha cuttings. Maximum success was recorded when the basal portion of cuttings were planted in the nursery during winter season without any treatment (IBA).

Keywords

Jatropha Curcas L., Effect of Auxins, Rooting, Stem Cuttings, Seasonal Variation,
Himachal Pradesh.

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B. S. Rawat , C. M. Sharma , Sumeet Gairola

Abstract

Five provenances of Cupressus torulosa collected from Garhwal Himalaya were studied for their cone and seed characteristics and germination behaviour. The three different sizes of cones i.e., large (1.98 x 1.71 - 2.23 x 1.78 cm), medium (1.61 x 1.38 - 1.81 x 1.60 cm) and small (1.38 x 1.71 - 1.60 x 1.49 cm) were observed in this species. The cone moisture content varied from 46.55-62.05%. The largest seeds were observed in Mandal provenance (0.48 ± 0.004cm x 0.44 ± 0.007cm) and the smallest (0.25 ± 0.007cm x 0.22 ± 0.005cm) in Gwaldam provenance. The seed mass was maximum (1.11 ± 0.036g /100 seeds on fresh weight basis) in New Tehri provenance and minimum (0.540 ± 0.011g/100 seeds on the fresh weight basis) in Mandal provenance. The highest germination (66.0 ± 3.68%) was observed in Mandal provenance at 10°C under prechilled conditions and the lowest germination (14.0 ± 1.00%) at 20°C in Mandal provenance under controlled conditions.

Keywords

Himalayan Cypress (Cupressus torulosa Don), Provenances, Cone and Seed
Characteristics, Variability, Germination Behaviour

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