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Pollen longevity of Pinus strobus and Pinus resinosa as controlled by humidity and temperature



Pollen longevity of Pinus strobus and Pinus resinosa as controlled by humidity and temperature



American Journal of Botany 28(2): 175-177



The results of a l-yr.-old storage expt., involving 4 levels of rel. humidity and 4 levels of temp., showed that at a rel. humidity of 50% and at temps. of 0[degree] to 4[degree] C pollen of P. strobus and P. resinosa was still more than 80% germinable with no significant differences between the pollen of the 2 spp. Germinability was reduced practically to zero at relative humidities of zero and 10% regardless of temp.; this was also true at room temp. and 30[degree] C regardless of humidity. Germinability of pollen stored at low humidities was increased by humidification at 75% relative humidity and 4[degree] C for 12 hrs.

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Accession: 013466161

Download citation: RISBibTeXText

DOI: 10.2307/2436942


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