摘要
为探索不同移栽期对贵州辣椒产量、品质及光合特性的影响,以贵州主栽品种‘辣研一号’、‘遵义朝天椒’、‘线椒269’为试材,设置7个移栽期,比较不同移栽期辣椒产量结构差异,并分析温度和降水与辣椒生育期进程、光合特性指标、产量构成和品质指标等的关系。在贵州地区,辣椒生长阶段平均气温对产量影响最大,各生育阶段持续天数与气象因子有关。适时早播能延长辣椒的生育天数,增加辣椒开花后的日较差,提升净光合速率,温度和降水主要通过影响辣椒植株的株高、茎粗、维生素C、辣椒素、二氢辣椒素等指标影响产量和品质。辣椒产量随着移栽期推迟表现出先增加后逐渐减少的趋势,适时的早播有利于辣椒增产。
The paper aims to explore the effects of different transplanting dates on pepper's yield,quality and photosynthetic characteristics in Guizhou.Seven transplanting dates were set with the main pepper cultivars‘Layan No.1’,‘Zunyi Chaotianjiao’and‘Xianjiao 269’as test materials,the characteristics of the yield structure under different transplanting date were compared.And the relationship between meteorological factors including temperature and precipitation and the growing stage,photosynthetic characteristics,yield structure,quality were also analyzed.The results showed that the average temperature in the growth stage of pepper had the greatest influence on the yield,and the duration of each growth stage was related to meteorological factors.Earlier sowing could prolong the growth stage,increase the diurnal temperature range after pepper flowering stage,and speed up the net photosynthetic rate.The temperature and precipitation mainly affected the plant height,stem diameter,vitamin C,capsaicin,dihydrocapsaicin and other indicators.With the delay of transplanting,the yield of pepper increased first and then decreased gradually,timely and early sowing is beneficial to the increase of pepper yield.
作者
陈芳
刘宇鹏
曾晓珊
于飞
胡家敏
CHEN Fang;LIU Yupeng;ZENG Xiaoshan;YU Fei;HU Jiamin(Mountain Environment and Climate Research Institute of Guizhou Province/Guizhou Key Laboratory of Mountainous Climate and Resources,Guiyang 550002)
出处
《中国农学通报》
2024年第10期109-119,共11页
Chinese Agricultural Science Bulletin
基金
贵州省科技厅项目“贵州铁皮石斛气候适宜性区划研究”(黔科合基础-ZK[2022]一般272)
贵州省气象局项目“辣椒分期播种试验研究”(黔气科登[2020]03-12号)
贵州省重点科技计划项目“贵州辣椒品质特征分析与评价体系构建”(黔科合支撑[2022]重点016号)
中国气象局创新发展项目“贵州辣椒气象灾害监测评估与预报技术及业务化应用”(CXFZ2021J072)
基于风险区划的春茶霜冻害气象指数保险费率厘定研究(黔科合基础-ZK[2023]一般230)。
关键词
辣椒
气象因子
光合特性
产量
品质
pepper
meteorological factor
photosynthetic characteristic
yield
quality