Abstract: We chose intraday pollen of male parent of carrot Sweet and Red No. 1 and 08511^# as experimental materials which were treated at 24， 27，3 0， 33， 36，3 9℃ respectively for 60 min to study the effects of different temperature to carrot pollen vigor by testing methods of pollens cultured in vitro and aceto-carmine coloration. Results indicated that carrot pollen vigor reduced along with the rise of temperature. And at 24℃ the pollen showed the highest vigor and remarkably inhibited when the temperature was higher than 33℃. Although coloration of carrot 08511^# was better than that of the male parent of Sweet and Red No. 1，germination rate of which was significantly affected by temperature compared to the later.

Key words: Carrot, Temperature, Pollen vigor, Germination rate

CLC Number: 

• S61.201