Figure 8.—

Male fertility, kernel defects, and plant lodging. Fertility was determined as a function of pollen quantity and is shown as the proportional difference from the reference inbred line. Z. diploperennis and Z. perennis cytoplasms had a severe effect on male fertility but essentially none on resistance to lodging, while the reverse was true for Z. luxurians cytoplasm. “Percent defective kernels” is the sum of the proportion of mildly defective and severely defective kernels (see Table 3). See Figure 3 for general information.