新疆农业科学 ›› 2020, Vol. 57 ›› Issue (10): 1821-1829.DOI: 10.6048/j.issn.1001-4330.2020.10.007

• 园艺特产·贮藏保鲜加工·土壤肥料 • 上一篇    下一篇

不同剂量保水剂对袋式复合沙培辣椒光合特性日变化规律的影响

程云霞, 刘迁杰, 贾凯, 时振宇, 吴慧   

  1. 新疆农业大学林学与园艺学院/新疆特色园艺作物种质资源与高效生产实验室,乌鲁木齐 830052
  • 收稿日期:2020-01-04 出版日期:2020-10-20 发布日期:2020-09-04
  • 通信作者: 吴慧(1967-),女,重庆人,副教授,博士,硕士生导师,研究方向为蔬菜栽培与生理,(E-mail)huiwu1103@126.com
  • 作者简介:程云霞(1996-),女,新疆石河子人,硕士研究生,研究方向为蔬菜栽培与生理,(E-mail)chengyunxia2018@163.com
  • 基金资助:
    新疆维吾尔自治区区域协同创新专项(科技援疆计划)(2017E0231);新疆农业大学大学生创新创业项目(201810758015);新疆维吾尔自治区园艺学重点学科(2016107583)

Effects of Different Dosage of Water-Retaining Agents on the Diurnal Variation of Photosynthesis of Bag-type Composite Sape Pepper

CHENG Yunxia, LIU Qianjie, JIA Kai, SHI Zhenyu, WU Hui   

  1. Laboratory of Germplasm Resources and High-efficient Production of Characteristic Horticultural Crops in Xinjiang/College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2020-01-04 Online:2020-10-20 Published:2020-09-04
  • Correspondence author: Wu Hui(1967-), female, associate professor, Chongqing native, master tutor, research direction for vegetable cultivation and physiology,(E-mail)huiwu1103@126.com
  • Supported by:
    Supported by the Regional Collaborative Innovation Project of Xinjiang Uygur Autonomous Region (S & T Supporting Xinjiang Program) (2017E0231); Innovative Entrepreneurship Project for College Students of Xinjiang Agricultural University (201810758015); Key Disciplines in Horticulture of Xinjiang Uygur Autonomous Region (2016107583).

摘要: 【目的】 研究保水剂对袋式复合沙培辣椒光合特性的影响,利用主成分分析综合评价不同剂量保水剂对辣椒光合各项指标的影响。【方法】 以瑞霸五号为试材,以保水剂施用量为变量,通过穴施保水剂,测定盛果期时叶片的净光合速率、气孔导度、胞间CO2浓度、蒸腾速率以及水分利用效率,研究不同剂量保水剂对袋式复合沙培辣椒光合特性日变化规律的影响。【结果】 在栽培基质中加入保水剂后,有助于提高辣椒叶片的光合特性,各处理的净光合速率均为“双峰”曲线,并在14:00时出现“午休”现象,除胞间CO2浓度以外,各项指标随着保水剂剂量的增加呈现增加的趋势。B5处理(3 g/穴)的光合特性表现最好,光合速率为12.91 μmol/(m2·s),气孔导度为0.22 μmol/(m2·s),胞间CO2为163.82 μmol/mol,蒸腾速率为5.37 mmol/(m2·s),水分利用效率为3.28 μmol/(m2·s)。【结论】 在栽培基质中施加3 g/穴保水剂对辣椒的各项光合指标表现最好。

关键词: :保水剂; 袋式; 复合沙培; 光合特性

Abstract: 【Objective】 To explore the effects of water-retaining agents on photosynthetic characteristics of bag-type compound sape peppers, and to evaluate the effects of different doses of water-retaining agents on photosynthetic indexes of peppers by using principal component analysis. 【Method】 In this test, Ruiba No. 5 was used as the test material, and the amount of the water-retaining agent was used as a variable. The leaf photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate and water use efficiency were used to study the effects of different dosages of water-retaining agents on the diurnal variation of photosynthetic characteristics of bag-type compound sape peppers. 【Results】 The results showed that the addition of a water-retaining agent to the cultivation substrate helped to improve the photosynthetic characteristics of pepper leaves. The net photosynthetic rate of each treatment was a "double-peak" curve, and a "lunch break" phenomenon occurred at 14:00 In addition to the intercellular CO2 concentration, various indicators showed an increasing trend with the increase in the amount of water retaining agent. According to the principal component analysis, the photosynthetic characteristics of the B5 treatment (3 g/hole) the best. The photosynthetic rate 12.91 μmol/(m2 · s), and the stomatal conductance 0.22 μmol/(m2 · s). Intercellular CO2 was 163.82 μmol/mol, transpiration rate was 5.37 mmol/(m2 · s), and water use efficiency was 3.28 μmol/(m2 · s). 【Conclusion】 In summary, the application of 3 g/hole water-retaining agent in the cultivation medium performed the best photosynthetic indexes of pepper.

Key words: water-retaining agent; bag type; composite sand culture; photosynthetic characteristics

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

出版单位:《新疆农业科学》编辑部
地址:乌鲁木齐市南昌路403号新疆农业科学院
邮编:830091
电话:0991-4502046
E-mail:xjnykx-h@xaas.ac.cn


版权所有 © 《新疆农业科学》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发
总访问量: 今日访问: 在线人数:
网站
微信公众号
淘宝购买
微店购买