油茶树体调控对营养物质变化的影响

为探明树体调控技术(整形修剪)在油茶(Camellia oleifera)生长发育过程不同生长阶段对体内碳水化合物含量、蛋白质含量等变化的影响，本研究在新梢生长期、果实发育期和休眠期3个时期对油茶成年树体进行精细、简化、粗放整形修剪和对照4种模式的树体结构调控，研究对油茶树体的可溶性总糖含量、可溶性淀粉含量、可溶性蛋白质含量及蔗糖合成酶活性、硝酸还原酶活性的影响，进而揭示树体调控技术对油茶成年树体内营养生理的影响。结果表明，油茶植株体内可溶性总糖、可溶性淀粉和可溶性蛋白质含量最高，蔗糖合成酶活性、硝酸还原酶活性最好的调控模式为简化整形修剪模式。相关性分析表明，在新梢生长期和果实发育期，可溶性总糖、可溶性淀粉含量均与调控模式呈显著相关(P0.05)，但可溶性蛋白质含量仅在果实发育期显著，可见树体调控技术对糖等有机营养物质的积累与利用影响较大。建议在油茶成林生产中采用简化整形修剪模式进行树体结构调整。

Effect of tree-controlling on nutrient of Camellia oleifera

To explore the process of growth and development of Camellia oleifera tree control technology (pruning ) on Camellia carbohydrates content,protein content and other changes,for the efficient management of C.oleifera body to provide data support and scientific basis .In this study during shoot growth,fruit development period,dormant period 3 periods on Camellia adult trees to fine trimming and pruning,simplified trimming and pruning,extensive trimming and pruning and control 4 modes of tree restructuring of its tree vivo total soluble sugar,soluble starch,soluble protein content and the degree of sucrose synthase activity,nitrate reductase activity level,and thus initially revealed tea tree control technology on adult trees vivo nutritional physiology.The results show that the simplified model of C.oleifera plants pruning vivo total soluble sugar,soluble starch,soluble protein content was the highest in all growth stages,sucrose synthase activity,the nitrate reductase activity is best.Control modes with various organic nutrients (total soluble sugar,soluble starch,soluble protein) content correlation analysis showed that the shoots growing and fruit development period,the regulation model and total soluble sugar content,soluble starch content was significantly correlated with changes(P0.05),but only in the soluble protein content of fruit development was significantly correlated,showing the tree control technology for sugar and other organic nutrients accumulation and utilization of greater impact.It is suggested that using a simplified model of the tree pruning restructuring on C.oleifera forest production.