开花和未开花山地麻竹叶片性状比较

通过对国有南靖林场 1 995年造林麻竹林开花和未开花麻竹不同部位竹叶叶质重、光合速率、呼吸速率及 N、 P、 K及灰分等指标的测定 ,结果表明 :开花麻竹各部位叶平均质重比未开花麻竹的小 1 3.0 5 % ;开花麻竹与未开花麻竹相比 ,同化能力较差 ,异化作用较大 ,光合系数小 ;开花麻竹叶中 N、 P、 K及灰分等成分的含量在麻竹竹冠各部位都比未开花麻竹低 5 .40 %、2 3.5 1 %、 2 .5 2 %和 3.30 % .

A Comparison of Leaves Character Between Flowering and No-flowering Dendrocalamus latiflorus Planted on Moutain

Through analyzing the various position leaves character of flowering and no flowering bamboo, including specific weight, photosynthetic rate, respiratory rate and the content of N?P?K?ash,the forest planted in 1995 in stated own forestry farm of Nanjin, results show that mean specific weight in flowering bamboo reduce by 13 05% comparing with its in no flowering bamboo Comparing with no flowering bamboo, flowering bamboo has lower assimilation ability and stronger dissimilation ability Photosynthetic coefficient is smaller in flowering bamboo Comparing with no flowering bamboo, the contents of N, P, K and ash in flowering bamboo reduce by 5 40%,23 51%, 2 52% and 3 30%