Effect of Growth Retardants on Content of Non-structural Carbohydrate and Products of Leymus chinensis

doi:10.11733/j.issn.1007-0435.2021.02.025

Acta Agrestia Sinica ›› 2021, Vol. 29 ›› Issue (2): 407-411.DOI: 10.11733/j.issn.1007-0435.2021.02.025

Effect of Growth Retardants on Content of Non-structural Carbohydrate and Products of Leymus chinensis

ZHANG Tian-jun, ZHANG Yong-liang, LI Wei, HOU Mei-ling, YU Jin-xin, Li Xin

Forage Crop Engineering Technology Research Center of Inner Mogolia;Agricultural College, Inner Mongolia University for Nationalities, Tong liao, Inner Mongolia, 028042, China

Received:2020-12-14 Revised:2020-12-30 Online:2021-02-15 Published:2021-02-25

植物生长延缓剂对羊草非结构性碳水化合物含量及产量的影响

张天俊, 张永亮, 李威, 侯美玲, 于金鑫, 李鑫

内蒙古民族大学农学院, 内蒙古自治区饲用作物工程技术研究中心, 内蒙古通辽 028042

通讯作者: 张永亮
作者简介:张天俊(1985-),女,内蒙古通辽市人,硕士,讲师,主要从事牧草栽培研究,E-mail:ztj032121@163.com
基金资助:
国家自然科学基金项目（31560673）；内蒙古自然科学基金项目“发酵TMR微生物多样性及其品质调制研究”（2018LH03020）资助

Abstract

Abstract: This study was aimed to investigate the effect of paclobutrazol (PP₃₃₃),chlormequat (CCC) and trinexapac-ethyl (TE) on the content Non-structural carbohydrates (NSC) and products of Leymus chinensis and to provide a basis for the production of Leymus chinensis in Horqin sandy land. The results showed that:the content of NSC increased by three growth retardants,and TE was the most effective one. After 15 days,the NSC content of Leymus chinensis treated with 1.8 kg·hm^-2PP₃₃₃ was 33.0% higher than that of control (P<0.05). After 30~75 days,the NSC content of Leymus chinensis treated with 1.8 kg·hm^-2TE was 29.2%,33.3%,63.4% and 49.3% higher than that of control (P<0.05).The height and products of Leymus chinensis reduced by three growth retardants,and PP₃₃₃ was the most effective one. So,the content of NSC was not an important indicator of increased production of Leymus chinensis. The products was mainly affected by plant height.

Key words: Leymus chinensis, Growth regulators, Non-structural carbohydrate, Products

摘要： 本研究通过对羊草（Leymus chinensis）喷施不同浓度的多效唑、矮壮素和抗倒酯，探讨植物生长延缓剂对非结构性碳水化合物含量及产量的影响规律，为科尔沁沙地羊草栽培与生产提供参考。结果表明：3种植物生长延缓剂均提高了羊草非结构性碳水化合物含量，抗倒酯效果最佳。与对照组相比，施药后15 d，1.8 kg·hm^-2多效唑处理组非结构性碳水化合物含量提高了33.0%（P<0.05）；施药后30~75 d，1.8 kg·hm^-2抗倒酯处理组非结构性碳水化合物含量分别提高29.2%，33.3%，63.4%和49.3%（P<0.05）。3种植物生长延缓剂均降低了羊草株高和产量，多效唑效果显著。因此，非结构性碳水化合物含量并不是提升羊草产量的重要指标，羊草产量主要受株高影响。低浓度抗倒酯对羊草产量影响较小，但有效的提高了非结构性碳水化合物含量。

关键词: 羊草, 植物生长延缓剂, 非结构性碳水化合物, 产量

CLC Number:

S482.8

ZHANG Tian-jun, ZHANG Yong-liang, LI Wei, HOU Mei-ling, YU Jin-xin, Li Xin. Effect of Growth Retardants on Content of Non-structural Carbohydrate and Products of Leymus chinensis[J]. Acta Agrestia Sinica, 2021, 29(2): 407-411.

张天俊, 张永亮, 李威, 侯美玲, 于金鑫, 李鑫. 植物生长延缓剂对羊草非结构性碳水化合物含量及产量的影响[J]. 草地学报, 2021, 29(2): 407-411.

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Effect of Growth Retardants on Content of Non-structural Carbohydrate and Products of Leymus chinensis

植物生长延缓剂对羊草非结构性碳水化合物含量及产量的影响

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