[1]曹宇谦,赵杰,史睿堃,等.聚天门冬氨酸对白皮松生长和氮代谢关键酶活性的影响[J].江苏林业科技,2023,50(04):1-6.[doi:10.3969/j.issn.1001-7380.2023.04.001]
　Cao Yuqian,Zhao Jie,Shi Ruikun,et al.Effects of polyaspartic acid on growth and nitrogen metabolism of Pinus bungeana[J].Journal of Jiangsu Forestry Science &Technology,2023,50(04):1-6.[doi:10.3969/j.issn.1001-7380.2023.04.001]
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聚天门冬氨酸对白皮松生长和氮代谢关键酶活性的影响()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第50卷
期数:
2023年04期
页码:
1-6
栏目:
试验研究
出版日期:
2023-08-31

文章信息/Info

Title:
Effects of polyaspartic acid on growth and nitrogen metabolism of Pinus bungeana
文章编号:
1001-7380（2023）04-0001-06
作者:
曹宇谦; 赵杰; 史睿堃; 胡文玉
山西省吕梁山国有林管理局林木良种培育中心, 山西 临汾 041500
Author(s):
Cao Yuqian;  Zhao Jie;  Shi Ruikun;  Hu Wenyu
Forest Seed Cultivation Center， State-Owned Forest Management Bureau, Lyuliangshan, Shanxi Province, Linfen 041500, China
关键词:
聚天门冬氨酸; 白皮松; 氮代谢酶; 游离氨基酸
Keywords:
Polyaspartic acid;  Pinus bungeana;  Nitrogen metabolism enzyme;  Free amino acid
分类号:
Q945.13；S791.243
DOI:
10.3969/j.issn.1001-7380.2023.04.001
文献标志码:
A
摘要:
研究聚天门冬氨酸（PASP）不同施用量对白皮松生长和氮代谢的影响规律，为白皮松育苗中科学应用PASP提供理论依据。在盆栽条件下，设置不施肥和施尿素2个对照，在施氮量相同的条件下PASP施用量分别设置为1.25，2.51，3.76 g/株，共计5个处理，每个处理3次重复。结果表明：2.51 g/株的PASP处理与不施肥对照和施尿素相比显著提高了白皮松株高和地径，1.25 g/株PASP处理与施尿素对照相比，显著提高了白皮松的株高。2.51 g/株PASP处理与施尿素对照相比，提高了白皮松硝酸还原酶和谷氨酰胺合成酶活性；3.76 g/株PASP处理在7月和8月这2种酶活性均低于2.51 g/株PASP处理；2.51 g/株PASP处理与空白对照和施尿素对照相比，均显著提高了谷氨酸草酰乙酸转氨酶和谷丙转氨酶活性；3.76 g/株与2.51 g/株PASP处理对这2种酶活性的影响处于同一水平。施用2.51 g/株的PASP，可显著提高白皮松苗木游离氨基酸总量。综合分析认为，白皮松育苗中PASP的施用量以2.51 g/株为宜。
Abstract:
The effects of different level of polyaspartic acid (PASP) on the growth and nitrogen metabolism of Pinus bungeana were studied in order to provide a theoretical basis for the scientific application in the seedlings.The experiment was conducted under potted conditions, five treatments were set with controls including no fertilization, chemical fertilizer, and the PASP application as 1.25, 2.51, and 3.76 g per plant on the premise of the same nitrogen application. The results showed that for each plant, the height and diameter of 2.51 g PASP treatment were significantly higher than those of no fertilization and chemical fertilizer controls, the 1.25 g treatment could significantly increase the height compared to the control of chemical fertilizers; the 2.51 g treatment increased the plant nitrate reductase and glutamine synthetase activities compared with the chemical fertilizer control, and the two enzymes activity in the 3.76 g treatment was lower than that in the 2.51 g treatment in July and August; the 2.51 g treatment significantly increased the activities of glutamic acid oxaloacetic acid transaminase and glutamic acid transaminase compared with the blank control and the chemical fertilizer control, and the effects of 3.76 g and 2.51 g treatments on the two enzyme activities were at the same level;the total amount of free amino acids in the were significantly increased in 2.51 g PASP treatment.Comprehensive analysis showed that the appropriate application of PASP in P. bungeana seedling cultivation was 2.51 g per plant.

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备注/Memo

备注/Memo:
收稿日期：2023-04-07;修回日期：2023-05-10
作者简介：曹宇谦（1994- ），男，山西长治人，助理工程师,学士学位。研究方向：白皮松培育。
更新日期/Last Update: 2023-11-15