View More View Less
  • 1 Vibha Agrotech Ltd. Samajiguda, Hyderabad A. P. India
Restricted access

The present work was conducted to study the genotypic variability of rice genotypes at the germination and seedling stages at different levels of salinity (0 M, 0.15 M, 0.2 M and 0.25 M NaCl). The results showed that increasing salinity decreased germination and seedling growth. Significant genotypic variability exists in the germination and seedling stages in response to different NaCl concentrations. Most of the genotypes showed more than 90% germination in the control, indicating good seed vigour. Two genotypes, VBR 638 (93%) and VBR 644 (84%), were selected as being tolerant to salinity at 0.2 M NaCl at the germination stage. Therefore, these could be used as source materials for genetic improvement for salinity tolerance at the germination stage. A considerable amount of genotypic variability was also found under control and saline conditions at the seedling stage with respect to the variables shoot height, root length, shoot and root dry weight. The high heritability observed for these variables offers good scope for genetic improvement for salinity tolerance both at the germination and seedling stages. The genotypes VBR 616, VBR 628, VBR 645, VBR 640, VBR 611, VBR 620, VBR 612, VBR 618, VBR 644, VBR 629, VBR 625 and VBR 630 were selected as being tolerant to salinity at the seedling stage.

  • Alam, M. Z., Stuchbury, T., Naylor, P. A. K., Sarkar, N. C. (2005): Efficacy of supplemental calcium (Ca) on germination and early seedling growth of two modern rice cultivars differing in salt tolerance in paper towel method and in Petri dishes. Acta Agron. Óvariensis , 46 , 41–51.

    Sarkar N. C. , 'Efficacy of supplemental calcium (Ca) on germination and early seedling growth of two modern rice cultivars differing in salt tolerance in paper towel method and in Petri dishes ' (2005 ) 46 Acta Agron. Óvariensis : 41 -51.

    • Search Google Scholar
  • Azaizeh, H., Curtise, B., Steudle, E. (1992): Effects of NaCl and CaCl 2 on water transport across root cells of maize ( Zea mays L.) seedlings. Plant Physiol. , 99 , 886–894.

    Steudle E. , 'Effects of NaCl and CaCl2 on water transport across root cells of maize (Zea mays L.) seedlings ' (1992 ) 99 Plant Physiol. : 886 -894.

    • Search Google Scholar
  • Burton, G. W., De Vane, E. W. (1953): Quantitative inheritance in grasses. Proc. 6th Int. Grassland Congr. , 1 , 277–283.

    Vane E. W. , 'Quantitative inheritance in grasses ' (1953 ) 1 Proc. 6th Int. Grassland Congr. : 277 -283.

    • Search Google Scholar
  • Flowers, T. J., Yeo, A. R. (1981): Variability in the resistance of sodium chloride salinity within rice ( Oryza sativa L.) varieties. New Phytol. , 88 , 363–373.

    Yeo A. R. , 'Variability in the resistance of sodium chloride salinity within rice (Oryza sativa L.) varieties ' (1981 ) 88 New Phytol. : 363 -373.

    • Search Google Scholar
  • Funakawa, S., Suzuki, R., Karbozova, E., Kosaki, T., Ishida, N. (2000): Salt-affected soils under rice-based irrigation agriculture in southern Kazakhstan. Geoderma , 97 , 61–85.

    Ishida N. , 'Salt-affected soils under rice-based irrigation agriculture in southern Kazakhstan ' (2000 ) 97 Geoderma : 61 -85.

    • Search Google Scholar
  • Heenan, D. P., Lewin, L. G., McCaffery, D. W. (1988): Salinity tolerance in rice varieties at different growth stages. Aust. J. Exp. Agric. , 28 , 343–349.

    McCaffery D. W. , 'Salinity tolerance in rice varieties at different growth stages ' (1988 ) 28 Aust. J. Exp. Agric. : 343 -349.

    • Search Google Scholar
  • Kaddah, M. T. (1963): Salinity effects on growth of rice at the seedling and inflorescence stages of development. Soil Sci. , 96 , 105–111.

    Kaddah M. T. , 'Salinity effects on growth of rice at the seedling and inflorescence stages of development ' (1963 ) 96 Soil Sci. : 105 -111.

    • Search Google Scholar
  • Kato, T., Takeda, K. (1996): Associations among characters related to yield sink capacity in spaced-planted rice. Crop Sci. , 36 , 1135–1139.

    Takeda K. , 'Associations among characters related to yield sink capacity in spaced-planted rice ' (1996 ) 36 Crop Sci. : 1135 -1139.

    • Search Google Scholar
  • Khan, M. S. A., Hamid, A., Karim, M. A. (1997): Effect of sodium chloride on germination and seedling characters of different types of rice ( Oryza sativa L.). J. Agron. Crop Sci. , 179 , 163–169.

    Karim M. A. , 'Effect of sodium chloride on germination and seedling characters of different types of rice (Oryza sativa L.) ' (1997 ) 179 J. Agron. Crop Sci. : 163 -169.

    • Search Google Scholar
  • Khatun, S., Rizzo, C. A., Flowers, T. J. (1995): Genotypic variation in the effect of salinity on fertility in rice. Plant Soil , 173 , 239–250.

    Flowers T. J. , 'Genotypic variation in the effect of salinity on fertility in rice ' (1995 ) 173 Plant Soil : 239 -250.

    • Search Google Scholar
  • Kotb, T. H. S., Watanabe, T., Ogino, Y., Tanji, K. K. (2000): Soil salinization in the Nile Delta and related policy issues in Egypt. Agricultural Water Management , 43 , 239–261.

    Tanji K. K. , 'Soil salinization in the Nile Delta and related policy issues in Egypt ' (2000 ) 43 Agricultural Water Management : 239 -261.

    • Search Google Scholar
  • Lutts, S., Kinet, J. M., Bouharmont, J. (1995): Changes in plant response to NaCl during development of rice ( Oryza sativa L.) varieties differing in salinity resistance. J. Exp. Bot. , 46 , 1843–1852.

    Bouharmont J. , 'Changes in plant response to NaCl during development of rice (Oryza sativa L.) varieties differing in salinity resistance ' (1995 ) 46 J. Exp. Bot. : 1843 -1852.

    • Search Google Scholar
  • Narale, R. P., Subramangam, T. K., Mukherjee, R. K. (1969): Influence of salinity on germination, vegetative growth and grain yield of rice ( Oryza sativa L. var. Dular). Agron J. , 61 , 341–343.

    Mukherjee R. K. , 'Influence of salinity on germination, vegetative growth and grain yield of rice (Oryza sativa L. var. Dular) ' (1969 ) 61 Agron J. : 341 -343.

    • Search Google Scholar
  • Pearson, G. A., Bernstein, L. (1959): Salinity effects at several growth stages of rice. Agron J. , 51 , 654–657.

    Bernstein L. , 'Salinity effects at several growth stages of rice ' (1959 ) 51 Agron J. : 654 -657.

    • Search Google Scholar
  • Sajjad, M. S. (1984): Effect of increased salt stress on yield and yield components in rice. Pakistan J. Sci., Ind. Res. , 27 , 292–294.

    Sajjad M. S. , 'Effect of increased salt stress on yield and yield components in rice ' (1984 ) 27 Pakistan J. Sci., Ind. Res. : 292 -294.

    • Search Google Scholar
  • Scardaci, S. C., Eke, A. U., Hill, J. E., Shannon, M.C., Rhoades, J. D. (1996): Water and soil salinity studies on California rice. Rice Publ. 2. Coop. Ext. Univ. of California, USA.

    Rhoades J. D. , '', in Rice Publ. , (1996 ) -.

  • Shannon, M. C., Rhoades, J. D., Draper, J. H., Scardaci, S. C., Spyres, M. D. (1998): Assessment of salt tolerance in rice cultivars in response to salinity problems in California. Crop Sci. , 38 , 394–398.

    Spyres M. D. , 'Assessment of salt tolerance in rice cultivars in response to salinity problems in California ' (1998 ) 38 Crop Sci. : 394 -398.

    • Search Google Scholar
  • Wilson, C. E., Keisling, T. C., Miller, D. M., Dillon, C. R., Pearce, A. D., Frizzell, D. L., Counce, P. A. (2000): Tillage influence on soluble salt movement in silt loam soils cropped to paddy rice. Soil Sci. Soc. Amer. J. , 64 , 1771–1776.

    Counce P. A. , 'Tillage influence on soluble salt movement in silt loam soils cropped to paddy rice ' (2000 ) 64 Soil Sci. Soc. Amer. J. : 1771 -1776.

    • Search Google Scholar
  • Yeo, A. R., Flowers, T. J. (1986): Salinity resistance in rice ( Oryza sativa L.) and pyramiding approach to breeding varieties for saline soils. Aust. J. Plant Physiol. , 13 , 161–173.

    Flowers T. J. , 'Salinity resistance in rice (Oryza sativa L.) and pyramiding approach to breeding varieties for saline soils ' (1986 ) 13 Aust. J. Plant Physiol. : 161 -173.

    • Search Google Scholar
  • Zafar, S., Ashraf, M. Y., Sarwar, G., Mahmood, S., Kausar, A., Iftikhar, A. (2004): Variation in growth and ion uptake in salt tolerant and sensitive cultivars under NaCl salinity. Asian J. Plant Sci. , 3 , 156–158.

    Iftikhar A. , 'Variation in growth and ion uptake in salt tolerant and sensitive cultivars under NaCl salinity ' (2004 ) 3 Asian J. Plant Sci. : 156 -158.

    • Search Google Scholar
  • Zeng, L., Shannon, M. C. (2000): Salinity effects on seedling growth and yield components of rice. Crop Sci. , 40 , 996–1003.

    Shannon M. C. , 'Salinity effects on seedling growth and yield components of rice ' (2000 ) 40 Crop Sci. : 996 -1003.

    • Search Google Scholar

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jul 2020 2 0 0
Aug 2020 1 0 0
Sep 2020 8 0 0
Oct 2020 6 0 0
Nov 2020 4 0 0
Dec 2020 0 0 0
Jan 2021 2 0 0