The effect of changes in microclimate produced by polyhouse, nethouse conditions on plant growth characteristics and biomass yield of Bhui Amla was studied during 8th August 2008 to 31st December 2008 in experiment conducted at Nagarjuna Medicinal Plant Garden, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The modified quonset type shade net house structure of 17 m x 4 m covered with 50% shade net and U.V. stabalized plastic film covered polyhouse. The nethouse temperature recorded lower day temperature than the open field and polyhouse recorded higher day temperature than nethouse and...