Pg. 5-7 Ovule Structure, Pollen Viability and Pollen Tube Growth in i>Litchi Chinensis Sonn. c./ HLH Mauritius

In this paper the authors report on in vitro as well as in vivo pollen germination, pollen tube growth and the structure of the ovule and aril. For in vitro germination studies, the best results we obtained at 25° C in a medium containing 20 percent sucrose. In vivo pollen tube growth was slightly better at 25 °C and 30 ° C than at 20 °C. Evidence confirming the hypothesis that the obturator acts as a guide for pollen tubes on their way towards the micropyle, is presented.

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