1. School of Water Resource and Hydropower, Gansu Agricultural University, Lanzhou, Gansu 730070, China;2. Gansu Academy for Water Conservancy, Lanzhou, Gansu 730000, China; 3. Administration of Hongshuihe River, Minle, Gansu 734500, China
Abstract：To reveal the response of the yield and quality of pepper under water deficit of irrigation, taking the pepper variety ″Long Jiao 6″ as testing sample, there levels of water stress, i.e., mild(65%-75% FC), moderate(55%-65% FC)and severe(45%-55% FC)were applied at the seedling stage of pepper, and mild water stress was composed at the full fruit stages and later fruiting stages, with the treatment of full water supply(75%-85% FC)during the whole pepper growth stage as control. Various water treatments pepper fertility final quality index(VCcontent, soluble sugar content, soluble solids content and soluble protein content)and yield were determinated. The result indicates that different levels of water deficit in the seedling stage couldn′t suppress the quality of pepper(P>0.05). At the full fruit stage, mild water stress increased the quality of the second harvest of pepper(VC content: 7.8%-9.1%;soluble sugar content: 9.8%-10.6%; soluble solid content: 4.2%-4.7%; soluble protein content: 9.4%-10.4%). The severe water stress at the seedling stage decreased VC content 2.20%. It follows from this that at the full fruit stage, mild water stress improved overall the quality of pepper. The yield of the mild water stress at the seedling and full fruit stages was the highest, it was 36 107.61 kg/hm2.
高佳,张宏斌,张恒嘉*,巴玉春. 绿洲灌区膜下滴灌调亏对辣椒品质及产量的影响[J]. 排灌机械工程学报, 2021, 39(4): 404-409.
GAO Jia,ZHANG Hongbin,ZHANG Hengjia*,BA Yuchun. Effects of water deficit on quality and yield of pepper under mulched drip irrigation in cold Oasis Region. Journal of Drainage and Irrigation Machinery Engin, 2021, 39(4): 404-409.
