Article Details

Influence of Infra-Red Radiation on Germination Efficiency, Seedling Growth, Vigour Index and Biochemical Constituents in Summer Mungbean (Vigna Radiate L.) | Original Article

T. N. Tiwari*, Dipti Kamal, Prashant Yadav, S. Rajendra Prasad, in Anusandhan | Technology & Management

ABSTRACT:

A pot/lab experiment was conducted during summer season of 2011 at the research farm of Directorate of Seed Research, Kushmaur, Mau with mungbean variety Samrat (PDM 139) to find out the effect of varying doses of IR radiation (30, 60, 90, 120, and 150 sec.) exposure on germination, seedling growth, seedling dry weight, vigour index and Nitrate assimilation enzymes. Result obtained revealed that there was differential response of IR-radiation on different seed quality parameters. Out of Radiation doses exposed, 30 sec. of exposure enhanced root length, shoot length, seedling dry weight & vigour index I up to 18.28%, 29.47%, 24.83%, &14.1% respectively. Activities of Nitrate assimilation enzymes showed differential response against the exposure of IR- Radiation, the maximum activity of Nitrate reductase was noted with 60 sec. whereas the Nitrite reductase activity was maximum with 90 sec. Conclusively exposure of IR-Radiation for 30 sec. favors only the seed quality parameters but the Nitrate assimilation enzymes showed their maximum activity in the range of 60 to 90 sec.