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农学学报 ›› 2018, Vol. 8 ›› Issue (5): 31-34.doi: 10.11923/j.issn.2095-4050.cjas17030046

所属专题: 园艺

• 林学 园艺 园林 食用菌 • 上一篇    下一篇

不同疏剪强度对油茶新梢生长和矿质元素分配的影响

曹永庆,汪舍平,杜红亮,姚小华   

  1. 中国林业科学研究院亚热带林业研究所,常山县林业局,常山县林业局,中国林业科学研究院亚热带林业研究所
  • 收稿日期:2017-03-31 修回日期:2018-01-24 接受日期:2018-01-25 出版日期:2018-05-18 发布日期:2018-05-18
  • 通讯作者: 姚小华 E-mail:caoyq1981@163.com
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金项目“腾冲红花油茶资源发掘与创新利用研究”(RISF2014011)和中央财政林业推广项目“低产油茶林有机改培及有机茶油生产关键技术示范”(JXTG[2015]-12)

Different Thinning Quantities Affect Spring Shoot Growth and Mineral Elements Distribution of Oil-tea Camellia

  • Received:2017-03-31 Revised:2018-01-24 Accepted:2018-01-25 Online:2018-05-18 Published:2018-05-18

摘要: 为了探明油茶树体对疏剪的反应,为油茶的科学修剪提供理论依据和指导,研究了不同疏剪强度处理对油茶新梢生长及矿质元素分配的影响。结果表明,不同强度的疏剪显著影响了油茶新梢的发枝量,疏剪强度越大,发枝量越小;疏剪处理显著提高了新梢的长度,改变了不同长度新梢的比例,高强度的疏剪提高了长梢(>10cm)的比例,降低了短梢(<5cm)比例;此外,疏剪处理改变了不同组织器官矿质元素的含量和分配,一定程度上提高了新梢和枝干间氮、磷、钾元素含量的比值;1/4强度疏剪对促进新梢萌发、平衡长短梢比例、改善新梢矿质元素含量效果最佳。

关键词: ISODATA, ISODATA, GF-1, WFV, 冬小麦, 面积, 遥感, 识别

Abstract: The paper aims to clarify the response of oil-tea Camellia to thinning treatment and provide a theoretical basis for pruning of oil-tea Camellia. The authors studied the effect of different thinning quantities on spring shoot growth and mineral elements distribution of oil-tea Camellia. The results showed that: the number of spring shoots were influenced significantly by different thinning treatments; the higher the thinning quantity, the less the spring shoots germinated; the length of spring shoots was increased and the ratio of spring shoots with different length was affected by different thinning treatments; high quantity thinning treatment increased the proportion of long spring shoots (>10 cm) and decreased the proportion of short spring shoots (<5 cm). In addition, the different thinning treatments changed the content and distribution of mineral elements in different tissues and increased the ratio of N, P, K content in spring shoot and branch to some extent. To sum up, 1/4 thinning quantity is the best treatment to promote the spring shoots germination, keep the balanced length of shoots and improve the content of mineral elements in shoots.