|
|
|
| Effects of different water treatments on growth, yield and quality of greenhouse eggplant |
| (1.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 2.Beijing Hydraulic Research Institute, Beijing 100044, China; 3.Beijing Engineering Technique Research Center for Exploration and Utilization of NonConventional Water Resources and Water Use Efficiency, Beijing 100044, China) |
|
|
|
|
Abstract In order to improve watersaving irrigation and eggplant yield in greenhouse, through experiments under drip irrigation in the greenhouse, the effect of different field water capacities (respective irrigation minima of 90% of FC, 80% of FC, 70% of FC, 60% of FC, hereinafter referred as T1, T2, T3 and T4) on the crop growth, root development, fruit yield and quality were studied. The results show that, as soil water content threshold declined, plant height, stem diameter, leaf area and aboveground biomass first increased and then decreased. T2 is better than the other three treatments. Eggplant roots are mainly distributed in soil depth between 0-40 cm, which is rapidly reduced as soil depth increases. Total root length density and total root surface area density decreased as irrigation minima decreased. The highest yield was obtained under T2, which is 1.03 of T1, 1.13 of T3 and 114 of T4 respectively. There is no significant difference between the four different treatments. The crude fiber content and nitrate content in the fruit are reduced when soil moisture content is too high or too low. Higher soil moisture is conducive to the amount of amino acids in the fruit, whereas reducing VC content decreased as irrigation minima decreased. To sum, T2 is the best irrigation minimum treatment for the growth of eggplant. Under T2, the growth, yield and quality of eggplant is better.
|
|
Received: 26 November 2012
Published: 25 June 2013
|
|
|
|
| ［1］程冬玲,邹志荣.高效设施农业中的水分调控与节水灌溉技术［J］.西北农林科技大学学报,2001,29(1):122-125.Cheng Dongling, Zou Zhirong. Moisture regulation and control and water saving irrigation technique in high benefit installation agriculture ［J］. Journal of Northwest Sci-Tech University of Agriculture and Forestry, 2001,29(1): 122-125.(in Chinese)［2］Chaves M M, Maroco J P, Pereira J S. Understanding plant responses to drought——from genes to the whole plant［J］. Functional Plant Biology, 2003, 30(3): 239-264.［3］Eapen D, Barroso M L, Ponce G, et al. Hydrotropism: Root growth responses to water［J］. Trends in Plant Science, 2005, 10(1): 44-50.［4］白文明,左强,黄元仿,等.乌兰布和沙区紫花苜蓿根系生长及吸水规律的研究［J］.植物生态学报,2001,25(1):35-41.Bai Wenming, Zuo Qiang, Huang Yuanfang, et al. Effect of water supply on root growth and water uptake of alfalfa in Wulanbuhe sandy region［J］. Chinese Journal of Plant Ecology, 2001, 25(1): 35-41. (in Chinese)［5］郑健,蔡焕杰,王健,等.日光温室西瓜产量影响因素通径分析及水分生产函数［J］.农业工程学报,2009,25(10):30-34.Zheng Jian, Cai Huanjie, Wang Jian, et al. Path analysis of yield components and water production function of water melon in greenhouse［J］. Transactions of the CSAE, 2009, 25(10): 30-34. (in Chinese)［6］Lincoln Zotarelli, Johannes M Scholberg, Michael D Dukes, et al. Tomato yield, biomass accumulation, root distribution and irrigation water use efficiency on a sandy soil, as affected by nitrogen rate and irrigation scheduling［J］. Agricultural Water Management, 2009, 96(1): 23-34.［7］Mao Xuesen, Liu Mengyu, Wang Xinyuan, et al. Effects of deficit irrigation on yield and water use of greenhouse grown cucumber in North China plain［J］. Agricultural Water Management, 2003, 61(3): 219-228.［8］李建明,王平,李江.灌溉量对亚低温下温室番茄生理生化与品质的影响［J］.农业工程学报,2010,26(2):129-134.Li Jianming, Wang Ping, Li Jiang. Effect of irrigation amount on physiology, biochemistry and fruit quality of greenhouse tomato under sublow temperatures［J］. Transactions of the CSAE, 2010, 26(2): 129-134. (in Chinese)［9］Xue Q, Zhu Z, Musick J T, et al. Root growth and water uptake in winter wheat under deficit irrigation［J］. Plant and Soil, 2003, 257(1): 151-161.［10］孙华银,康绍忠,胡笑涛,等.根系分区交替灌溉对温室甜椒不同灌水下限的响应［J］.农业工程学报,2008,24(6):78-84.Sun Huayin, Kang Shaozhong, Hu Xiaotao, et al. Response of greenhouse sweet pepper under alternate partial rootzone irrigation to different irrigation low limits［J］. Transactions of the CSAE, 2008,24(6): 78-84. (in Chinese)［11］李毅杰,原保忠,别之龙,等.不同土壤水分下限对大棚滴灌甜瓜产量和品质的影响［J］.农业工程学报,2012,28(6):132-138.Li Yijie, Yuan Baozhong, Bie Zhilong, et al. Effects of drip irrigation threshold on yield and quality of muskmelon in plastic greenhouse［J］. Transactions of the CSAE, 2012, 28(6): 132-138. (in Chinese) |
|
|
|
