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volume 25 issue 2 (june 2005) : 142 - 144

HETEROSIS AND INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN BHENDI {ABELMOSCHUS ESCULENTUS (L) MOENCH.}

N
N. Senthil Kumar
S
S. Thirugnana Kumar
K
K. Saravanan
J
J. Ganesan
1Department of Agricultural Botany, Faculty of Agriculture, Annamalai University, Annamalainagar - 608002, India

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Cite article:- Kumar Senthil N., Kumar Thirugnana S., Saravanan K., Ganesan J. (2025). HETEROSIS AND INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN BHENDI {ABELMOSCHUS ESCULENTUS (L) MOENCH.}. Agricultural Science Digest. 25(2): 142 - 144. doi: .

ABSTRACT

In the present investigation, relative heterosis, heterobeltiosis and standard heterosis were estimated for assessing die hybrid value for eight characters viz., days to first flower, number of branches, plant height, number of nodes, fruit length, single fruit weight, fruit yield by number and weight. The cross Arka Abhay x Punjab Padmini showed significant positive heterosis over better parent and standard parent for number of nodes per plant (15.7 per cent,26.25 per cent), single fruit weight (5.9 per cent, 14.36 per cent), fruit length (13.5 per cent, 16.75 per cent), fruit yield by number (6.77 per cent, 13.99 per cent) and weight (14.48 per cent, 31.40 per cent). The same cross gave heterosis over better parent and standard parent even in F 2 generation might be due to low inbreeding depression. Presence of hybrid vigour for fruit yield per plant in F 2 can be attributed to mainly additive and additive x additive interaction. Such cross is expected to give superior segregants which may be handled through pedigree method

KEYWORDS

    REFERENCES

    1. Brim, A C. and Cockerham, C.C. (1961). Crop. Sci., 1: 187-190.
    2. Mondal, N. and Dana, I. (1993). IndianAgric., 37(3): 189-192.
    3. Partap, P.S. and Dhankar, B.S. (1980). Genetica - Agraria (italy), 34(1-2): 67-73.
    4. Saravanan, K. (2001). Ph.D. Thesis, AnnamaIai Univ., Annamalainagar.
    5. Senthil Kumar, N. (1998). M.Sc.(Ag.) Thesis, AnnamaIai Univ., Annamalainagar.
    6. Shukla, A.K. and Gautam, N.C. (1990). Indian J. Hart., 47(1): 85-88.
    7. Singh, B.N., etal. (1938). J. Hered., 20: 37-41.
    8. Singh, S.P. and Singh, H.N. (1979). Indian J. Agric. Sci., 49: 500-504.
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      volume 25 issue 2 (june 2005) : 142 - 144

      HETEROSIS AND INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN BHENDI {ABELMOSCHUS ESCULENTUS (L) MOENCH.}

      N
      N. Senthil Kumar
      S
      S. Thirugnana Kumar
      K
      K. Saravanan
      J
      J. Ganesan
      1Department of Agricultural Botany, Faculty of Agriculture, Annamalai University, Annamalainagar - 608002, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Kumar Senthil N., Kumar Thirugnana S., Saravanan K., Ganesan J. (2025). HETEROSIS AND INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN BHENDI {ABELMOSCHUS ESCULENTUS (L) MOENCH.}. Agricultural Science Digest. 25(2): 142 - 144. doi: .

      ABSTRACT

      In the present investigation, relative heterosis, heterobeltiosis and standard heterosis were estimated for assessing die hybrid value for eight characters viz., days to first flower, number of branches, plant height, number of nodes, fruit length, single fruit weight, fruit yield by number and weight. The cross Arka Abhay x Punjab Padmini showed significant positive heterosis over better parent and standard parent for number of nodes per plant (15.7 per cent,26.25 per cent), single fruit weight (5.9 per cent, 14.36 per cent), fruit length (13.5 per cent, 16.75 per cent), fruit yield by number (6.77 per cent, 13.99 per cent) and weight (14.48 per cent, 31.40 per cent). The same cross gave heterosis over better parent and standard parent even in F 2 generation might be due to low inbreeding depression. Presence of hybrid vigour for fruit yield per plant in F 2 can be attributed to mainly additive and additive x additive interaction. Such cross is expected to give superior segregants which may be handled through pedigree method

      KEYWORDS

        REFERENCES

        1. Brim, A C. and Cockerham, C.C. (1961). Crop. Sci., 1: 187-190.
        2. Mondal, N. and Dana, I. (1993). IndianAgric., 37(3): 189-192.
        3. Partap, P.S. and Dhankar, B.S. (1980). Genetica - Agraria (italy), 34(1-2): 67-73.
        4. Saravanan, K. (2001). Ph.D. Thesis, AnnamaIai Univ., Annamalainagar.
        5. Senthil Kumar, N. (1998). M.Sc.(Ag.) Thesis, AnnamaIai Univ., Annamalainagar.
        6. Shukla, A.K. and Gautam, N.C. (1990). Indian J. Hart., 47(1): 85-88.
        7. Singh, B.N., etal. (1938). J. Hered., 20: 37-41.
        8. Singh, S.P. and Singh, H.N. (1979). Indian J. Agric. Sci., 49: 500-504.
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