PBIO*3110 Crop Physiology Problem Set 3 The Yield Equation 1.For each of the following, indicate which component of the "yield equation" (PAR, αC, RUE, HI, or the total integration time) would be most affected in the short term. Justify your answer in each case. a.A sudden drop in air temperature from 23°C one day to 12°C the next, during the grain-filling stage of corn. b.A hailstorm that partially defoliates the crop. c.Growth of tall weeds such that the crop is partially shaded. d.High temperatures during flowering, inhibiting pollination. e. Selection of a group 0 soybean cultivar to grow in the group III maturity zone.