18Feb 2017

STUDIES ON PERFORMANCE OF DROUGHT TOLERANT GENOTYPES UNDER DROUGHT AND NORMAL CONDITIONS THROUGH MORPHO, PHYSIO AND BIOCHEMICAL ATTRIBUTES OF BLACKGRAM (VIGNA MUNGO L.) AND GREEN GRAM (VIGNA RADIATA L.)

  • Agricultural Research Station, Virinjipuram, 632 104 Vellore.
  • Agricultural College and Research Institute , Madurai , Tamil Nadu.
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Six genotypes were studied of which each three genotypes from blackgram and greengram. Drought has been found to decline the almost all the morphological characters including leaf area in both the crops as compared to those of irrigated ones. The plant height is reduced, plants not having branches, even one or two plants having branches with shorter and unproductive , number of pods per plant, pod length and number of seeds per pod also much reduced. The hundred seed weight (g), single plant yield and dry matter production (kg/ha) were reduced compared to irrigated condition. The susceptible genotypes of Co 8 in greengram and Co 6 in blackgram were much reduced in all the biometrical characters compared to water stress tolerant genotypes VRM(Gg)1 and VMGG012-005 in greengram and VBN(Bg)4 and VBN(Bg)6 in blackgram. Among the genotypes CO 8 in greengram and CO 6 in blackgram had very low membrane stability. The reduction in photosynthesis under stress can also be attributed to a decrease in chlorophyll content in all the genotypes especially very high in Co 8 greengram and Co 6 in blackgram The increased proline accumulation in drought tolerant genotypes of VRM(Gg)1 and VMGG 012 -005 in greengram and VBN(Bg)4 and VBN(Bg)6 in blackgram are showed tolerance to drought. The correlation between the leaf proline content and soil moisture content was found to be negatively correlated at the same time correlation between chlorophyll Stability index (CSI) and soil moisture was found to be positively significant in both greengram and blackgram.

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[M. Pandiyan, N. Senthil, T. Balaji, P.Veeramani, B. K. Savitha, V. Sendhilvel and A. Gopilkrishnan. (2017); STUDIES ON PERFORMANCE OF DROUGHT TOLERANT GENOTYPES UNDER DROUGHT AND NORMAL CONDITIONS THROUGH MORPHO, PHYSIO AND BIOCHEMICAL ATTRIBUTES OF BLACKGRAM (VIGNA MUNGO L.) AND GREEN GRAM (VIGNA RADIATA L.) Int. J. of Adv. Res. 5 (Feb). 489-496] (ISSN 2320-5407). www.journalijar.com

M.Pandiyan
TNAU, Agricultural Research Station, Virinjipuram 632 102, Vellore

DOI:

Article DOI: 10.21474/IJAR01/3176      
DOI URL: http://dx.doi.org/10.21474/IJAR01/3176

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