Morphological responses of two high yielding Groundnuts Cultivars (Arachis hypogaea L.cv. KCG-6 and GPBD-4 ) of Karnataka with Contrasting Drought tolerance.

B.V.KRISHNAPPA [1*] CHINTA SUDHAKAR. [2]
Page No. 44-53

The present study was undertaken to ascertain the morphological responses of two different
groundnut (Arachis hypogaea L.) cultivars (KCG-6 and GPBD-4), under different water stress
regimes characterized as control, mild, moderate and severe stress represented by 100, 75, 50 and
25% soil moisture for 12 days. However, the percent increase of root length, shoot length, dry mass
accumulation in roots, dry mass accumulation in leaves and leaf area was higher in cv KCG-6 and
lower in cv. GPBD-4. Data analysis of increase of root length, shoot length, dry mass accumulation
in roots, dry mass accumulation in leaves revealed quantitative changes occurred during water
stress in both cultivars. The present study indicated that cv. KCG-6 is water stress tolerant than cv.
GPBD-4
Key words: Groundnut (Arachis hypogeal L.), Water stress