Competitive Exams: Revision Terminology Part 18

  • Petroleum plants

    1. Euphorbiaceous

      1. Hevea rubber

      2. E. abyssinica(Rubber plant)

      3. E. tirucalli (sehund)

    2. Compositae

      1. Guayale

      2. Russion dandelion

    3. Ascelepiadaceae

      1. Aak

      2. Milkweed

    4. Leguminosae

      1. Capifera langsdorfci

      2. C. Multijuga

      3. Hardwickia pinata

    5. Dipterocarpaceae – Gijon

    6. Myristicaceae – Dialynthera ofaba

    7. Pittosporaccae- pittosporum resiniferus.

  • Coconut

    1. Heater – liq. Endosperm

    2. Solid endosperm eat

    3. Fibrous husk = coo -> roper

    4. Sugary sap – inflorescence

    5. Stem – construction

    6. Leaves – thatching

    7. Midrib of pinnae – brooms

    8. Coconut shells – receptacles to collect rubber.

  • Cheapest N2 fertilizer = Urea

  • Nuclear genetic material of one parent is eliminate though cytoplasm from both are retain

  • Nuclear fusion product = Cybrid = Cytoplasmic hybrid = Heteroplast.

  • Fusion male sterility, resistance to drays

  • Steps for plant Introduction

  • Procurement of germplasm plant protection Cataloguing Evaluation Acclimatization Multiplication Distribution

  • Mass selection – not need Sc. Knowledge & control of pollination

  • Bread wheat = Hexaploid

  • Rice = diploid

  • Maize = tetraploid

  • Sugarcane = aneuploidy

  • Sugarbeet = triploid

  • Apple / pear = triploid

  • Pure line = progeny by self-fertilization of single homozygous plant.

  • Heterosis (Hybrid Vigour) Lost due to inbreeding & recovered due to crossing inbreeds.

  • Sharbati sonara from Sonora – 64 by mutation breeding using X- rays.

  • Se-midway variety – lodging resistant, fertilizer, responsive, high yielding

  • Sonika - insensitive to photoperiods – no grain dormancy – shorter cycle.

  • Raphanobrassica (Radish X Cabbage) -> Karpechenko

  • Protoplast induced to fuse by PEG (polyethylene glycol) Perturbation of ionic composition or electro fusion.