1School of Forestry and Environmental Sciences, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad, Uttar Pradesh, India
2Department of Horticulture, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad, Uttar Pradesh, India
*Email: mohinidhakane@gmail.com
Online published on 15 March, 2014.
To elucidate the phytotoxic response of Jatropha curcas L. on performance of some economical crops under nursery, present investigation was undertaken. Three test crops viz. Zea mays, Vigna radiata and Brassica campestries were evaluated for various germination and growth parameters. Different soil media has treatment combinations of field soil and soil beneath Jatropha monoculture fields significantly influenced the germination, seedling growth and vigour of all test crops. Highest germination capacity was noted in control and a gradual suppression trend was seen thereafter. Growth measurements (shoot and root length, collar diameter, vigour index) and phytomass (fresh shoot and root weight, dry shoot and root weight) exerts maximum increment when supplied to 50% field soil and 50% Jatropha rhizosphere soil (JRS). Maximum inhibition in all parameters was pronounced at 100% Jatropha rhizosphere soil for each of considered parameters. Highest germination % (82) was traced in mustard followed by maize (77) seeds. Best germination and dry biomass (7.57 gm) extent was eminent in Brassica campestries but seedling growth (66.24 cm) and fresh biomass (14.62 gm) concern were higher in Zea mays. Vigna radiata adversely affected in germination (64%), seedling growth (17.24 cm), vigour (965.44), fresh biomass (1.2 gm) and dry biomass (0.24 gm) respectively. Higher concentration of Jatropha rhizosphere soil (JRS) gives suppretory behavior in survival and development of examined crops. The allelopathic perspective within test crops can be arranged as a Vigna radiata > Brassica campestries > Zea mays.
Allelopathic influence of Jatropha incorporated soil in combination with field soil was evaluated.
Present soil mixture significantly affects the germination and seedling establishment of test crops.
Pronounced inhibition of growth measurements was found in 100% Jatropha rhizosphere soil.
Zea mays depict superior seedling growth and phytomass than Vigna radiata and Brassica campestries.
Allelopathy, Jatropha rhizosphere soil (JRS), field soil (FS), biomass, germination, maize (Zea mays), mung (Vigna radiata), mustard (Brassica campestries)
