Abstract
A pot experimentwas conducted to evaluate the impact of variable drought stress and nitrogen levels on plant height, root length and grain numbers per plant in sunflower IHelianthus annuus L.) variety "Shrnas'tThree levels of nitrogen were applied at the time of sowing and sporadic drought stress was induced by a cycle of tenday watering and ten-day stress period after 20, 30, 40 and 50 days of sowing. It was laid out in a completely randomized design with eight replications. Plant height, root length and number of grains per plant were significantly affected both by sporadic drought and nitrogen levels. The values of these parameters decreased significantly by lowering the nitrogen level or increasing the sporadic stress. Key words: drought stress, nitrogen levels, sunflower

Akbar Ali Meo. (2000) IMPACT OF VARIABLE DROUGHT STRESS AND NITROGEN LEVELS ON PLANT HEIGHT, ROOT LENGTH AND GRAIN NUMBERS PER PLANT IN A SUNFLOWER (HELIANTHUS ANNUUS L.) VARIETY "SHMAS", , Volume 37, Issue 1,2.
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