Study of radiation absorption and use efficiency of wheat cultivars (Triticum aestivum) under nitrogen fertilizer effect

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Bozorgi Hossein Abad A.; MONDANI F.; SAEEDI M.; HEIDARI H.; BAGHERI A.

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Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2019 | Volume:11 | Issue:37 Page(s): 202-216

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Title

Study of radiation absorption and use efficiency of wheat cultivars (Triticum aestivum) under nitrogen fertilizer effect

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Keywords

Crop growth rateQ1

partitioningQ2

relative growth ratioQ2

radiation absorptionQ2

radiation use efficiencyQ1

Abstract

Solar radiation effects on crop growth and development. Dry matter production by crop has often a positive relationship with radiation absorption and radiation use efficiency. Therefore, in order to evaluate radiation absorption and use efficiency for wheat cultivars, a split-plot experiment based on the randomized complete block design with three replications was conducted in Kermanshah weather climate under 2015-2016. The experiment treatments were four levels of nitrogen fertilizer rate (90, 180, 300, 360 kg. ha-1 of urea) as main-plot and four wheat cultivars (Parsi, Zare, Pishgam and Orum) as sub-plot. The evaluated traits were included leaf area index, radiation absorption, Crop growth rate, relative growth ratio, leaf dry weight, stem dry weight, total dry weight, radiation use efficiency and grain yield. The results showed that Pishgam cultivar in comparison with other cultivars had the most satisfying in terms of evaluated characteristics under nitrogen fertilizer rate treatments. By increasing the rate of urea fertilizer from 90 to 360 kg. ha-1, maximum leaf area index, radiation absorption, Crop growth rate, relative growth ratio, leaf dry weight, stem dry weight, total dry weight and grain yield were improved. The most (8950 kg. ha-1) and the lowest (1264 kg. ha-1) grain yield weight were observed for Pishgam cultivar in 360 kgurea. ha-1 treatment and for cultivar variety in 90 kgurea. ha-1 treatment, respectively. The results also showed that the highest and the lowest radiation use efficiency were related to Pishgam cultivar (1. 59 g. MJ-1) in 360 kgurea. ha-1 treatment and Orum cultivar (0. 67 g. MJ-1) in 90 kgurea. ha-1 treatment, respectively. Rising of nitrogen fertilizer by improvement of photosynthesis rate and Crop growth rate caused to pick up dry matter accumulation and finally increased wheat radiation use efficiency.

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APA: Copy

Bozorgi Hossein Abad, A., MONDANI, F., SAEEDI, M., HEIDARI, H., & BAGHERI, A.. (2019). Study of radiation absorption and use efficiency of wheat cultivars (Triticum aestivum) under nitrogen fertilizer effect. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 11(37 ), 202-216. SID. https://sid.ir/paper/188486/en

Vancouver: Copy

Bozorgi Hossein Abad A., MONDANI F., SAEEDI M., HEIDARI H., BAGHERI A.. Study of radiation absorption and use efficiency of wheat cultivars (Triticum aestivum) under nitrogen fertilizer effect. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2019;11(37 ):202-216. Available from: https://sid.ir/paper/188486/en

IEEE: Copy

A. Bozorgi Hossein Abad, F. MONDANI, M. SAEEDI, H. HEIDARI, and A. BAGHERI, “Study of radiation absorption and use efficiency of wheat cultivars (Triticum aestivum) under nitrogen fertilizer effect,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 11, no. 37 , pp. 202–216, 2019, [Online]. Available: https://sid.ir/paper/188486/en

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