摘要
以辣椒为试验材料,探究了叶面喷施不同浓度的几丁寡糖对辣椒生长发育和品质的影响。试验采用盆栽方式,设置CK(水溶肥溶液)、J-1(喷施1 mg/L几丁寡糖水溶肥溶液)、J-10(喷施10 mg/L几丁寡糖水溶肥溶液)3个试验处理。结果表明,叶面喷施不同浓度的几丁寡糖对辣椒的生长发育和品质产生显著的影响:(1)处理J-1和J-10能够显著提高植株的地上部鲜重和地下部的干鲜重(P<0.05),株高和根冠比也有一定程度的增加,但未达到显著差异水平;(2)J-1和J-10处理的辣椒果长、果肉厚和单果重显著提高(P<0.05),但果径和果形指数未表现出显著差异水平;(3)经过喷施几丁寡糖后,辣椒果实的维生素C含量、可溶性蛋白、硝酸盐含量、可溶性糖含量、游离氨基酸含量显著增加(P<0.05),且处理J-10增加的幅度大于处理J-1;而类黄酮和总酚的相对含量、辣椒素含量和二氢辣椒素含量则显著减少(P<0.05),处理J-10减少的幅度大于处理J-1;(4)辣椒品质的相关性分析结果表明,可溶性蛋白、可溶性总糖、蔗糖、果糖与Vc含量呈极显著正相关(P<0.01);辣椒素、二氢辣椒素与可溶性蛋白、可溶性总糖、Vc含量呈极显著负相关。综合以上分析:叶面喷施浓度为10 mg/L的几丁寡糖水溶肥溶液效果更为显著,能够促进辣椒果实的生长发育,提高辣椒的单果重,改善辣椒的果实品质。
Pepper was used as experimental material in this study,and the effects of foliar spraying of different concentrations of chitin oligosaccharides on the growth,development and quality of pepper fruit was explored.Pot experiments were conducted in this test,including three treatments with CK(water-soluble fertilizer solution),J-1(1 mg/L chitin-oligosaccharide watersoluble fertilizer solution),and J-10(10 mg/L chitin-oligosaccharide water-soluble fertilizer solution).The results showed that different concentrations of chitin oligosaccharides sprayed on the leaves had significant effects on the growth,development and quality of pepper:(1)J-1 and J-10 treatment significantly increased(P<0.05)the shoot fresh weight,root fresh and dry weight,and the plant height and root-shoot ratio also showed the increasing trend but did not perform the significant difference level.(2)The fruit length,flesh thickness and fruit weight of pepper of J-1 and J-10 were significantly increased(P<0.05),but there was no significant difference for their fruit diameter and fruit shape index.(3)After spraying chitin oligosaccharide,the Vc content,soluble protein,nitrate content,soluble sugar content and free amino acid content of pepper fruit were significantly increased(P<0.05),and the increasing rate of J-10 was greater than J-1.The content of flavonoids and total phenols,capsaicin and dihydrocapsaicin were significantly decreased(P<0.05),while the reduction rate of J-10 was significantly larger than J-1.(4)The correlation analysis of pepper quality showed that there was a significant(P<0.01)and positive relationship between soluble protein,total soluble sugar,sucrose,fructose and Vc content.However,there was a significant and negative correlation between capsaicin,dihydrocapsaicin and soluble protein,total soluble sugar,Vc content.In conclusion,the effect of foliar spraying of chitin oligosaccharide water-soluble fertilizer solution with concentration of 10 mg/L is more remarkable.It can promote the growth and development of pepper fruit,increase the single fruit weight of pepper and improve the quality of pepper fruit.
作者
毛志强
辛雪成
周繁
龙惊惊
崔顺艳
王宇
焦姣
王芳
MAO Zhi-qiang;XIN Xue-cheng;ZHOU Fan;LONG Jing-jing;CUI Shun-yan;WANG Yu;JIAO Jiao;WANG Fang(Shenyang Research Institute of Chemical Industry Co.,Ltd,Shenyang Liaoning 110021)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2019年第5期170-178,共9页
Soil and Fertilizer Sciences in China
基金
国家重点研发计划(2016YFB0301500)
关键词
辣椒
几丁寡糖
生长发育
品质
pepper
chitin oligosaccharide
growth and development
quality
