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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (13): 107-111.

• 林学 园艺 园林 • 上一篇    下一篇

叶面喷施磷钾元素对紫叶矮樱叶片显微结构影响的研究

张金荣 张吉立 刘振平   

  • 收稿日期:2010-11-23 修回日期:2011-01-14 出版日期:2011-06-05 发布日期:2011-06-05

Studies on Blade Microstructure of Prunus×Cistena in Phosphorus and Potassium Elements of Foliar Application

  • Received:2010-11-23 Revised:2011-01-14 Online:2011-06-05 Published:2011-06-05

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摘要：

通过根外追肥的方式为紫叶矮樱提供磷钾营养，以研究不同浓度的磷钾肥对紫叶矮樱叶片显微结构的影响规律；试验在田间条件下，3年生紫叶矮樱为试材，P设0.5%，1.0%，1.5%3个浓度，K设0.4%，0.8%，1.2%3个浓度，清水为对照，3次重复。试验结果表明：叶片喷施磷钾肥后，紫叶矮樱叶片最直观表现是叶片细胞间隙变小，细胞颜色加深，细胞排列更加整齐；随着喷施磷肥浓度的增加，栅栏组织厚度逐渐降低，P3处理低于对照8.8μm，喷施钾肥后表现出相反的结果，K3处理高于对照12.0μm，表明K对栅栏组织的影响大于P；海绵组织与叶片厚度表现出随浓度升高而逐渐降低的变化。分析认为，外源磷钾肥对紫叶矮樱叶片显微结构具有显著的影响。

关键词: 现代农业, 现代农业, 可持续发展, 生态农业

Abstract:

The way to provide for the Prunus×Cistena phosphorus and potassium nutrition of the foliage top dressing,For study the way of Blade microstructure of Prunus×Cistena in Different concentrations of P and K;Test conditions in the field,3 year old Prunus×Cistena as materials, P set 0.5%, 1.0%, 1.5% 3 concentration, K set 0.4%, 0.8%, 1.2% 3 concentration,Water as control,Repeat 3 times.The results showed that:After Foliar P and K, Leaf of Prunus×Cistena blade performance is the most intuitive smaller cell gap,Cell color deepened, Cells were arranged more neatly;With the increase of the concentration phosphate fertilizer spraying,Palisade tissue thickness decreased，P3 treatment lower than the control 8.8μm,After spraying fertilizer showed the opposite results,K3 processing than the control 12.0μm,That the impact of K on the palisade tissue than P;The thickness of spongy tissue and leaves showed decreased gradually with the concentration changes.Analysis that, exogenous P and K with Prunus×Cistena leaf on the microstructure has a significant impact.