Yield Potential of Small Millets under Drought Condition
-
Author:S. Ashok1*, A. Senthil1, N. Sritharan1, S. Punitha1, K. Divya1 and R. Ravikesavan2
Page No:370
DOI:10.29321/MAJ.2018.000163
Abstract
An experiment was conducted to study the yield traits under reproductive stage drought in
selected small millets viz., finger millet (CO 15), little millet (CO 4) and barnyard millet (CO 2).
The crops were imposed with drought during their flowering stage by withholding irrigation till
the soil moisture reaches below 20 per cent. Barnyard millet performed better under drought
at reproductive stage over other small millets, such as finger millet and little millet, in terms of
more number productive tillers (11.16 plant-1), ear heads (12.99 plant-1), lesser reduction in ear
head length (13.35 %), ear head weight (21.66 %) and 1000 grain weight (14.93 %) compared to
well watered control plants. Little millet recorded the highest reduction in ear head length (19.01
%), ear head weight (39.64 %) and 1000 grain weight (23.26 %) whereas finger millet recorded the
lowest number of productive tillers (9.41 plant-1) and ear heads (9.71 plant-1) under drought over
control. Regarding the grain and straw yields of small millets subjected to water stress, it was
evident from the results that the impact of water deficit at reproductive stage was prominent in
little millet compared to barnyard millet and finger millet. Barnyard millet recorded the highest
grain yield (18.94 g plant-1) and straw yield (42.12 g plant-1) followed by finger millet (14.48 and
33.14 g plant-1). Little millet recorded the lowest grain yield (11.31 g plant-1) and straw yield (26.01g
plant-1) under drought condition.
Key Words: Small millets, Yield parameters, Drought