Author:
Anda Angela,Simon Brigitta,Soós Gábor,Teixeira da Silva Jaime A.,Menyhárt László
Abstract
AbstractThe influence of three levels of water supply (unlimited (WW); water stress during flowering (RO); rainfed (P)) on radiation properties and yield of two soybean varieties (Sinara, Sin; Sigalia, Sig) were evaluated. Sin is considered to be tolerant to water stress. The effect of leaf area index, year, variety, and meteorological variables on evapotranspiration (ET) was analysed by hierarchical regression. This study attempted to identify how water supply affects the crop–light relationship between photosynthetically active radiation (PAR) transmission and radiation use efficiency (RUE), which were involved in qualitative and quantitative traits related to soybean production (biomass and yield attributes: seed yield, 1000-grain weight, oil and protein content). Unstandardized coefficients of air temperature (Ta) showed that a 1 °C increase in daily mean Ta induced a higher ET, on average 0.16 mm day−1. Soil moisture strongly affected sowing time. When averaged across three seasons at flowering, 97.7, 95.1 and 97.3% of incoming PAR were intercepted by the canopies of plants in WW, RO and P, respectively. The average extinction coefficient (k) and RUE pooled across both varieties were 0.42 and 1.32 g MJ PAR−1 for WW, and 0.46 and 0.98 g MJ PAR−1 for RO, respectively, compared with 0.44 and 1.15 g MJ PAR−1 for P. As expected, water treatment significantly affected all yield traits: RO decreased yield whereas WW increased yield compared to P. Practically, both varieties are suitable for cultivation under water stress during flowering but Sin showed greater yield under unlimited watering and rainfed conditions.
Funder
Hungarian University of Agriculture and Life Sciences
Publisher
Springer Science and Business Media LLC
Subject
Soil Science,Water Science and Technology,Agronomy and Crop Science
Reference62 articles.
1. Akhtar K, Wang W, Khan A, Ren G, Afridi MZ, Feng Y, Yang G (2019) Wheat straw mulching offset soil moisture deficient for improving physiological and growth performance of summer sown soybean. Agric Water Manag 211(1):16–25
2. Allen RG, Pereira LS, Raes D, Smith M (1998) Crop evapotranspiration-guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56 FAO, Rome
3. Anda A, Soós G, Menyhárt L, Kucserka T, Simon B (2020) Yield features of two soybean varieties under different water supplies and field conditions. Field Crops Res 245:107673
4. Anda A, Simon B, Soós G, Menyhárt L, Kucserka T (2019) Investigation of soybean leaf area influenced by water supply. Időjárás 123(1):73–87
5. Anda A, Soós G, Teixeira da Silva JA, Kozma-Bognár V (2015) Regional evapotranspiration from a wetland in Central Europe, in a 16-year period without human intervention. Agric Forest Meteor 205:60–72
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