期刊论文

Effects of foliar application of fertilizer on growth, photosynthesis and chlorophyll fluorescence parameters of Tung Tree (Vernicia fordii Hemsley) seedlings

中文

中南林业科技大学学报

1673-923X

2016

36

2

40-44,49

10.14067/j.cnki.1673-923x.2016.02.007

国家林业公益性行业科研专项

本校为第一机构

研究不同叶面肥对油桐幼苗生长、光合作用、叶绿素含量及叶绿素荧光参数等的影响,为油桐苗期施肥管理和高产栽培提供参考。选取一年生‘葡萄桐'幼苗为试材进行砂培盆栽模拟培养试验,测定叶片喷施尿素和磷酸二氢钾(KH_2PO_4)后的光合生理参数,叶绿素荧光及生长量等指标。结果表明: 油桐幼苗具有较高净光合速率(P_n),平均值可达12.2 μmol·m~(-2)·s~(-1);叶片喷施尿素和KH_2PO_4能够显著提高油桐幼苗叶片的净光合速率(P_n),气孔导度(G_s)、光饱和点(LSP)、表观量子效率(AQY)、光系统Ⅱ (PS Ⅱ)最大光化学效率(F_v/F_m)、电子传递速率(ETR)及生物量的积累,降低了初始荧光(F_o) 、CO_2补偿点;根外...

This study focused on the effects of growth, photosynthesis, chlorophyll content and chlorophyll fluorescence parameters of Tung tree leaves under different leaf fertilizer using sand culture, in order to provide a physiological basis of fertilization management for Tung tree seeding and high-yield cultivation. With annual ‘Putaotong' seedlings as experimental materials, sand culture pot experiment with different leaf fertilizer, photosynthetic physiological parameters, chlorophyll fluorescence and growth indicators of Tung tree seedings were ...