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S. Nautiyal , D. P. Nautiyal , H. C. S. Bhandari , Pankaj Kumar , Rakesh Prakash

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S. Nautiyal , H. C. S. Bhandari , Rakesh Prakash

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Azamal Husen , Rakesh Khali , S. Nautiyal , H. C. S. Bhandari

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The ischolar_maining response of nodal shoot cuttings of Grewia optiva Drummond, as influenced two phytohormones, namely, indole-3-butyrie-acid (Lea) and α-napthalenp Acetic Acid (NAA) applied in three conecntrations (1000 to 3000 ppm) were examined under intermittent mist in vermiculite culture. Assessments on ischolar_maining, sprouting as well as on ischolar_main number and their length on the cuttings were conducted after 25-days of treatments. The highest per cent ischolar_maining (75.56%) and sprouting (73.76%) was obtained from untreated cuttings. NAA 3000 ppm treated cuttings showed the lowest per cent ischolar_maining 08.89%) and sprouting 05.80%) compared to IRA treatments. However, positive response was observed in ischolar_main numbers and their length by the application of IRA and NAA. The possibilities of use nodal of shoot cuttings for raising clonal material of G. optiva, an excellent fodder tree species of mountain regions have been discussed.

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Mohinder Pal , Manika Mishra , Meena Bakshi , H. C. S. Bhandari

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Investigations were undertaken to study the effect of IBA and several phenolic compounds on the ischolar_maining and growth of cladode segments of Casuarina equisetifolia. 1,000,5,000 and 10,000 ppm concentrations of IBA as well as the 100 ppm concentration of most of the phenolic compounds tried promoted ischolar_maining and the growth of cladode segments. However, the promotion of ischolar_maining and the growth of the segments even with ]000 ppm IBA were greater when the phenolic compound was applied as a pretreatment immediately before the auxin treatment. The phenolic compounds were found to reduce IBA requirement by 80% - 90%. Besides the ischolar_maining and the growth of the segments treated with only 1000 ppm IBA after pretreatment with phenolic compounds were found equally good or even superior to the segments which were treated with 5,000 or 10,000 ppm IBA alone. The relevance of the findings for the rapid mass clonal multiplication of economically important plant species has been discussed.

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Mohinder Pal , Meena Bakshi , H. C. S. Bhandari

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This paper describes a new technique of macro propagation for the rapid mass multiplication of clonal material of cladode bearing species viz; Casuarina equiselifolia. Casllorina glauco and Tamarix aphylla by ischolar_maining cladode segments. Accordingio this method. The needle-like cladodes are collected and made into 4.0 cm long Aegments, treated with IBA and planted under intermittent mist. Rooting and survivability of the segments was found to he quite satisfactory. The relevance of this new technique for the rapid mass clonal multiplication of forest tree species has heen discussed.

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Mohinder Pal , Adarsh Kumar , Meena Bakshi , H. C. S. Bhandari

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Rooting trial were conducted terminal and sub-terminal leafy softwood binodal segments made from actively growing branches of neem. The terminal segments ischolar_mained easily even without auxin treatment. The segments taken from the sub-terminal greenwood zone were only moderately easy to ischolar_main but their ischolar_maining response improved on their treatment with potassium permanganate and ascorbic acid. Relevance of the findings for the mass clonal multiplication of neem has been discussed.

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Mohinder Pal , Adarsh Kumar , Meena Bakshi , H. C. S. Bhandari

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A new technique of macropropagation by ischolar_maining small segments of cladodes for rapid mass multiplication of clonal material of Casuarina equisetifolia L. is described. Even as small as 2.0 cm long cladode segments can be rotted if maintained under high humidity. The size of cladode segments, position of the cladode on the shoot, auxin treatment, season of taking and planting the segment and age and genotype of the mother plant were found to affect the ischolar_maining ability of the cladode segments. The significance of this technique for the mass multiplication of the superior clonal material of C. equisetifolia is discussed.

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Mohinder Pal , H. C. S. Bhandari

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Trials on clonal propagation of a number of MFP(minor forest products) species, by ischolar_maining nodal segments were conducted to develop the suitable technologies for the mass production of superior planting material. The effects of season of taking and planting the cuttings, the physiological features of the mother plant, treatment with phytohormones etc. were systematically analysed. The findings indicate that it is possible to vegetatively propagate the superior quality plants of MFP species by ischolar_maining leafy nodal segments after their treatment with suitable doses of growth regulatory substances. The significance of these findings for the mass production of the superior quality planting stock of MFP species, and their possible implications in the socio-economic development are discussed.

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K. C. Badola , M. Pal , H. C. S. Bhandari

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Leafy soft-wood cuttings and non-leafy shoot cuttings of Bhanjira (Perilla frutescens Linn.) are easy to ischolar_main. Treatment with IAA, IBA, IPA, and NAA caused promotion of ischolar_maining, increased shoot growth and stimulated flowering also. The results indicate that clonal crops can be raised using shoot cuttings and that auxin has the potential of being used for yield improvement in this species.

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K. C. Badola , Mohinder Pal , H. C. S. Bhandari

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T. C. Pokhriyal , H. C. S. Bhandari , D. S. Negi , S. P. Chaukiyal , B. B. Gupta

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Studies were carried out to screen twenty seven different leguminous, fast growing tree species for nodule formation and nitrogen fixation activity. The nodules add nitrogenase (acetylene reduction) activity was present in all the twelve mimosoid, four Papilionoids species and absent in all the eleven Caesalpinioid species examined under pot culture conditions.

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K. Gurumurti , H. C. S. Bhandari , D. S. Negi

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Branch and leafy cuttings made from mature trees of Eucalyptus completely failed to ischolar_main whereas the coppice shoot cuttings made from 30 month old trees responded to ischolar_maining to the extent of 65 per cent. Probable reasons for inability of mature tissue to ischolar_main is discussed. A technique to ischolar_main nodal cuttings prepared from coppice sprouts is presented.

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K. Gurumurti , D. P. Raturi , H. C. S. Bhandari

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Studies on time trends of biomass production by means of age series in energy plantations (spacing 1.3 × 1.3 m) of Prosopis juliflora is presented. The component wise biomass production at the age of 18, 24, 30, 36 and 48 months was determined. The results show considerable variation among the population of trees. However, distinct linear relationship between girth at breast heighht (GBH) and total height was discernible. The total biomass produced at 18, 24,30,36 and 48 months of age was 19.69, 41.39, 69.11, 114.62 and 148.63 dry tonnes per hectare, respectively, the corresponding figures for utilizable biomass wood, bark and branch) were 14.63, 32.17, 50.59, 88.87 and 113.25 dry tonnes per hectare. At all the periods of study, branch component formed the major portion of total biomass being around 50 to 55 per cent utilizable biomass was three fourth of total biomass at all ages. The solar energy conversion efficiency ranged from 0.59 per cent at 18 months to 1.68 per cent at 48 months of age the peak value being 1.87 per cent at the age of 36 months. It is shown that the variable diameter and height can be used to reliably predict the biomass production in Prosopis juliflora with the help of the regression equations developed in the present study. It is cuncluded that Prosopis juliflora is an ideal candidate for energy plantations in semi arid and marginal lands, not only to meet the fuelwuod demands but also to improve the soil fertility, for, this plant is fast growing and nitrogen fixing leguminous tree.

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