9th Class Science Improvement in food resources

  • question_answer 61)
      Discuss the role of hydridisation in crop improvement.

    Answer:

      Hybridisation The crossing between genetically dissimilar plants to produce a new variety known as hybrid is called hybridisation. Crossing may be between two different varieties (inter varietal cross-breeding), between two different species of the same genus (inter specific cross-breeding) and between different general (intergeneric cross-breeding). The most common type of breeding is inter varietal. In India crops are-grown in diverse types of soil and different climatic conditions by poor to progressive all types farmers. Keeping climatic factor, input application, disease and pest resistance, quality and adaptability in mind, etc., a large number of varieties have been developed in India. These varieties are high yielding and resistant to diseases and pests, they have better quality and early to late maturing time. Table Improved varieties or high yielding varieties (HYV) of some important crop plants  
    Commodities Crops Varieties
    1. Cereals 1. Rice ,   2. Wheat   3. Maize ·      IR,JayaHeera,VLDhan221,CST7-1 Jawahar.TR C-C 10,IR36,Pusabasmati 1, Kasturi,Vikas, PNR591-18, Padma ·      MIKS 11 KML 7406, HUW 318 MACS 2496, HD 2687, HD 2285, C 306, PBW 154 HW 157, Pusa lerma,  sharbati sonora ·      Ganga 5, HIM 128, Shakti.Navjot, Vikram
    2. Pulses   1. Chick pea (gram) 2. Pigeon pea 3. Urad bean 4. Moong bean , ·      BE 244, ICC 34, K 50, H 208, Pusa 240, Pant 114 ·      ICPH 8, Pusa ageti, UPAS 120, Pusa 84manak,T21 ·      LBG17,ADT3,T9Pant430,PS1,C05 ·      MLZ67,C04,PS16,S8,T44,K851,Aasha
    3. Oil seeds 1. Groundnut 2. Mustard 3. Soyabean  4. Sunflower ·      NH2,ICGS 1.M37GG 11,TMV 12, Kaushal.lCGS 11, ICGS 44 ' ·      Pusa bold, kranti, pusa agranim RLM 514 RH 30. ·      PK 262, PK 327, Pusa 24, Durga Gaurav ·      BSH 1, MSF H 8 Morden Arun Paras


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