000			01253nam a2200157Ia 4500
008			220216s9999 xx 000 0 und d
100			_aHamzah Samsidar
245		0	_aShort communication : Pollen storage of Hevea
260			_bJournal of Natural Rubber Research _c1996
300			_a115-204
520			_aAn investigation on the storage characteristics of Hevea pollen with the aim of facilitating crosses of clones that do not flower synchronously was undertaken. Staminal columns, as compared to whole flowers, were found to be better storage materials. These underwent a certain degree of drying (to a minimum of 7;- 11;moisture content) before they were stored in liquid nitrogen. With this method the pollen was viable for five months even though the in vitro germination rate was declining. Pollen stored up to one-and-a-half months in liquid nitrogen was shown to retain its ability for fertilisation when 6;success was obtained in the laboratory assessment. Handpollination in the field however, before three fruits out of the 108 flowers pollinated with one-month-old stored pollen. Only one fruit was obtained in another crossing of 330 flowers.
650			_aHevea
650			_aPollen storage
700			_aLeene Chan Jee
942			_cJS
999			_c68655 _d68655