Vapour-pressure deficit the plant may dry out and die. For this reason the ideal range for VPD in a greenhouse is from 0.45 kPa to 1.25 kPa, ideally sitting at around 0.85 kPa. As a general rule, most plants grow well at VPDs of between 0.8 and 0.95 kPa. In ecology, it is the difference between the actual water vapour pressure and the saturation water vapour pressure at a particular temperature. Unlike relative humidity, vapour-pressure deficit has a simple nearly straight-line relationship to the rate of evapotranspiration and other measures of evaporation. To compute the VPD, we need the ambient (greenhouse) air
Amount in controversy the defendants are jointly liable.” "Middle Tennessee News Co., Inc. v. Charnel of Cincinnati, Inc.", 250 F.3d 1077, 1081 (7th Cir. 2001). However, “if the defendants are severally liable, plaintiff must satisfy the amount in controversy requirement against each individual defendant.” The 5-4 decision in "Exxon Mobil Corp. v. Allapattah Services, Inc.", 545 U.S. 546 (2005), held that a federal court has supplemental jurisdiction over claims of other plaintiffs who do not meet the jurisdictional amount for a diversity action, when at least one plaintiff in the action does satisfy the jurisdictional amount. The standard for dismissing a complaint for