Vol. 8, Issue 7 (2019)

Author(s):
Jitendra Patidar, Ml Kewat and AK Jha

Abstract:
A field experiment was conducted during Kharif 2017-2018 at the Research Farm, Department of Agronomy, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.). The investigation was aimed to study the present status of different weed flora found in soybean at Jabalpur district of Kymore Plateau & Satpura Hills Zone of Madhya Pradesh. Different weed flora observed in experimental field were classified as monocots like Echinochloa colona, Cyperus iria and dicots like Mollugo pentaphylla, Cichorium intybus, Phyllanthus urinaria, Eclipta alba.The study also indicated the infestation was maximum by monocots weeds in soybean as compared to dicots. Echinochloa colona was found as dominant and frequent weed in soybean. The higher relative density (37.47 and 50.27%) and frequency (20.34 and 21.43%) were reported in case of Echinochloa colona, Which had highest important value index (57.81 and 71.70 out of 200) during both Kharif seasons 2017 and 2018 and followed by Mollugo pentaphylla. The highest important value index of Echinochloa colona also indicates the predominance of weed in soybean at present in Jabalpur district of Kymore Plateau & Satpura Hills Zone of Madhya Pradesh.