摘要
以燕麦(白燕2号)为实验材料,设置4个不同水平氮肥与锌肥施用量,探究不同氮锌水平对燕麦光合特性及籽粒品质的影响.研究结果表明:氮锌配施下,处理组与对照组相比燕麦株高、叶面积和产量显著增加;燕麦叶绿素含量,胞间CO2浓度,净光合速率、气孔导度和蒸腾速率与对照组相比均显著增加;燕麦籽粒的可溶性蛋白、可溶性糖和淀粉质量分数比对照组显著提高了 24.53％、14.49％和29.24％;氮锌配施是促进燕麦生长的有效方法,施氮量为16 g·m-2,施锌量1.50 g·m-2时效果最佳,可提高燕麦光合作用效率、增加产量并改善籽粒品质.
Abstract
Oat(Baiyan No.2)was used as the experimental material and four different levels of nitrogen and zinc fertilizer concentrations were set up to explore the effects of different nitrogen and zinc levels on oat photosynthetic characteristics and grain quality.The research results indicated that under the combined application of nitrogen and zinc,the plant height,leaf area,and yield of oats in the treatment group significantly increased compared to the control group.Oat chlorophyll content,intercellular CO2 concentration,net photosynthetic rate,stomatal conductance,and transpiration rate all significantly increased compared to the control.The soluble protein,soluble sugar,and starch content of oat seeds were significantly increased by 24.53％,14.49％,and 29.24％compared to the control group.Therefore,nitrogen and zinc fertilizer combined application could be an effective method to promote oat growth.The best effect was achieved when the nitrogen application rate was 16 g·m-2 and the zinc application rate was 1.50 g·m 2,which could improve the photosynthesis efficiency,increase the yield and improve the grain quality of oats.
基金项目
国家燕麦荞麦产业技术体系建设项目(CARS-08)
国家科技期刊平台
NSTL
万方数据