Temperature effects on reciprocal interspecific crosses
The effects of temperature on pollen tube growth were evaluated
in terms of pollen tube length at 8 h after pollination. When PI 147065, PI 320052 or C. metuliferus PI 526242 pistils were
pollinated with ‘MR-1’ pollen, pollen tube growth was enhanced
significantly at 32–34 ◦C (Table 1). In PI 147065, PI 320052, and
PI 526242 pistils, the respective ‘MR-1’ pollen-tube lengths were