吉林林业科技
吉林林業科技
길림임업과기
JILIN FORESTRY SCICNCE AND TECHNOLOGY
2013年
4期
8-9,16
,共3页
油松%雄球花%花期%物候%有效积温
油鬆%雄毬花%花期%物候%有效積溫
유송%웅구화%화기%물후%유효적온
Pinus tabulaeformis Carr.%male cone%flowering stage%phonological phenomenon%effective accu-mulative temperature
以街路栽植的油松为材料观测雄球花花期物候，结果表明：在2012年的气候条件下，雄球花显露时的有效积温为114℃，撒粉结束为500℃。群体雄球花撒粉期持续9 d，平均为6．5 d，株间变动于4～8 d，差异明显，有利于异花传粉和提高结实量。雄球花有黄绿色、浅紫红色、紫红色3种颜色，以黄绿色最多，占70．9％，体量最大，为1．54 cm，花粉产量高。
以街路栽植的油鬆為材料觀測雄毬花花期物候，結果錶明：在2012年的氣候條件下，雄毬花顯露時的有效積溫為114℃，撒粉結束為500℃。群體雄毬花撒粉期持續9 d，平均為6．5 d，株間變動于4～8 d，差異明顯，有利于異花傳粉和提高結實量。雄毬花有黃綠色、淺紫紅色、紫紅色3種顏色，以黃綠色最多，佔70．9％，體量最大，為1．54 cm，花粉產量高。
이가로재식적유송위재료관측웅구화화기물후，결과표명：재2012년적기후조건하，웅구화현로시적유효적온위114℃，살분결속위500℃。군체웅구화살분기지속9 d，평균위6．5 d，주간변동우4～8 d，차이명현，유리우이화전분화제고결실량。웅구화유황록색、천자홍색、자홍색3충안색，이황록색최다，점70．9％，체량최대，위1．54 cm，화분산량고。
Through the observation and analysis of Pinus tabulaeformis Carr.in the street and road, flowering phonology of male cone was been showed in 2012 , when the male cone appeared ,effective accumulative tem-perature was 114℃, and it was 500℃in the end of pollination .Pollination period of male cone population las-ted 9 d, and the average was 6.5 d, variation between trees was 4~8 d,there was a significant difference , it was conductive to cross -pollination and increase cone bearing .Male cone had three colour , greenyellow, light purple and purple, the maximum was greenyellow , accounted for 70.9%, the volume was 1.54 cm, and the pollen production was also highly .
