大豆科学2024，Vol.43Issue(6)：735-742,8.DOI:10.11861/j.issn.1000-9841.2024.06.0735
密度与播量配置对鲜食大豆光合特性和产量的影响
Effects of Density and Sowing Amount on Photosynthetic Characteristics and Yield of Vegetable Soybean
摘要
Abstract
In order to study the optimal density and sowing amount for the vegetable soybean planting in Fujian province.A two-factor splitted blocks design was used to study the effects of different density and sowing amount on the photosynthetic characteristics and yield of vegetable soybean.Four density and four sowing amount levels were set up respectively.The results showed that with the increase of sowing amount,the net photosynthetic rate(Pn)showed an upward trend,and the intercellular CO2 concentration(Ci)showed a downward trend;the transpiration rate(Tr),relative chlorophyll content(SPAD value),the stomatal conductance(Gs)and the ratio of intercellular CO2 to atmospheric CO2(Ci/Ca)expect for the 180 000 and 210 000 plants·ha-1 were first increased and then decreased,and the vapor pressure deficit(VPD)was first decreased and then increased.Under the same sowing amount,as the density increases,Tr and Ci show an upward trend.Under the same density conditions,as the sowing amount increases.Plant height and pod height showed an upward trend,while the number of main stem nodes showed a downward trend.The number of effective pods showed a gradual downward trend.Except for the 120 000 and 150 000 plants·ha-1,the yield first increased and then declined.The yield of 180 000 plants·ha-1 and two per hole of plants was the optimal,reaching 11 290.32 kg·ha-1,which was 0.45％,5.71％and 14.15％higher than that of 120 000,150 000 and 210 000 plants·ha-1,respectively.In summary,the planting pattern with a density of 180 000 plants·ha-1 and sowing amount of two per hole of plants was the optimal for vegetable soybean planting in Fujian province.关键词
鲜食大豆/密度/播量/光合特性/产量Key words
vegetable soybean/density/sowing amount/photosynthetic characteristics/yield引用本文复制引用
蓝新隆,萧涵,林训昌,夏春英,刘爱华,胡润芳,林国强,张玉梅..密度与播量配置对鲜食大豆光合特性和产量的影响[J].大豆科学,2024,43(6):735-742,8.基金项目
福建省科技厅星火项目(2023S0011) （2023S0011）
福建省财政专项(CXTD2021011-2). （CXTD2021011-2）
