CAJ | 학술논문

[目的]为桃栽培生产提供理论依据。[方法]试验以3年生实生桃树为材料,NH4NO3为试验氮肥,设0、3、6g/盆三个施氮水平,探讨了不同施氮水平对实生桃树可溶性总糖和淀粉以及根内部组织构造的影响。[结果]根和叶片的可溶性糖含量随着施氮水平的提高呈增加趋势,以6g/盆最高,与对照及3g/盆区差异均达到0.05显著水平;淀粉含量却呈相反趋势,随着施氮水平的提高而呈下降趋势,以6g/盆含量最低,与对照达0.01显著水平。与对照、3g/盆处理相比,6g/盆根内部组织构造表现为维管中柱较大,维管束发达,皮层薄壁细胞间隙小,细胞圆润、饱满,细胞壁光滑,发育较好。[结论]适宜的施氮水平可促进桃树可溶性总糖的累积和根内部组织的发育。
[목적]위도재배생산제공이론의거。[방법]시험이3년생실생도수위재료,NH4NO3위시험담비,설0、3、6g/분삼개시담수평,탐토료불동시담수평대실생도수가용성총당화정분이급근내부조직구조적영향。[결과]근화협편적가용성당함량수착시담수평적제고정증가추세,이6g/분최고,여대조급3g/분구차이균체도0.05현저수평;정분함량각정상반추세,수착시담수평적제고이정하강추세,이6g/분함량최저,여대조체0.01현저수평。여대조、3g/분처리상비,6g/분근내부조직구조표현위유관중주교대,유관속발체,피층박벽세포간극소,세포원윤、포만,세포벽광활,발육교호。[결론]괄의적시담수평가촉진도수가용성총당적루적화근내부조직적발육。
[Objective] The research aimed to provide theoretical basis for the cultivation and production of peach.[Method] The three-year-old seedling peach tree was used as the materials,and NH4NO3 was used as the experimental nitrogen fertilizer.Three nitrogen levels,0,3,6 g per pot respectively were set to study the effects of different nitrogen fertilizer on the contents of soluble sugar,starch and internal structure of the root of the peaches.[Result] The contents of soluble sugar of roots and leaves increased with the increase of nitrogen fertilizer level,and the level of 6 g per pot was the highest,which showed extreme differences between the level of 3 g per pot and the control.However,starch contents showed opposite results,which decreased as the level of nitrogen fertilizer increased.Compared with the 3 g per pot level of nitrogen fertilizer and the control,the internal structure of root applied with nitrogen fertilizer of 6 g per pot level had larger fibrovascularcylinder,advanced vascular bundle,small-spaced thin-walled cells,smooth and full cells with smooth cell wall.[Conclusion]Appropriate nitrogen levels can accelerate the accumulation of soluble sugar and the growth of root tissue structure.