Authors : P A Lambat, V S Dongre and K J Cherian
Page Nos : 172-176
Description :
Diseases are responsible for losses of at least 10% of global food production representing a threat to food security. It is estimated that annual losses by disease cost US$ 220 billion. Besides direct losses, the methods for disease control especially the chemical methods can result in environmental contamination and in residual chemicals in food, in addition to social and economic problems. Ten rows were prepared were also grown in elevated conditions like increased CO2 or increase in temperature or both in Open Top CO2 Chambers (OTC). Root length (cm), Shoot Length (cm) and Number of leaves (Nos.) were observed at 450 ppm 500ppm and 550 ppm respectively. Four units of OTCs were already established and plants have been exposed to controlled temp, humidity and various CO2 for study of physiological changes in different growth AMB: AMBIENT OUTSIDE OTC1: AMBIENT C02 (CONTROL) , OTC2: ELEVATED C02 (400ppm)+ Ambient Temp, OTC3: ELEVATED C02 (450ppm)+ Ambient Temp, and OTC4: ELEVATED C02 500ppm + Ambient Temp. it was observed that no At 450 ppm, 500 ppm and 550 ppm of CO2 concentration there was no significant difference in the root length (cm) in the Cotton but there was significant and noticeable change in the root length (cm) of Tur crop, there was no significant difference in the shoot length (cm) in the Tur but there was significant and noticeable change in the shoot length (cm) of Cotton and there was no significant difference in the number of leaves there was significant and noticeable change in the number of leaves of Cotton and Tur in OTC.
