Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice

ABSTRACT In fragrant rice (Oryza sativa L. subsp. japonica Kato) production, seedling management and fertilization both are important parts. However, the effects of different seedling managements and fertilizer rates on grain yield and 2-acetyl-1-pyrroline (2-AP, main and key compound of fragrant ri...

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Autores principales: Liu,Jinhai, He,Longxin, Luo,Haowen, Wu,Tiaoyan, Zhang,Tantan, Wen,Runhao, Tian,Hua, Tang,Xiangru
Lenguaje:English
Publicado: Instituto de Investigaciones Agropecuarias, INIA 2021
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200128
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spelling oai:scielo:S0718-583920210002001282021-05-28Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant riceLiu,JinhaiHe,LongxinLuo,HaowenWu,TiaoyanZhang,TantanWen,RunhaoTian,HuaTang,Xiangru 2-Acetyl-1-pyrroline fertilizer fragrant rice grain yield Oryza sativa subsp. japonica seedling ABSTRACT In fragrant rice (Oryza sativa L. subsp. japonica Kato) production, seedling management and fertilization both are important parts. However, the effects of different seedling managements and fertilizer rates on grain yield and 2-acetyl-1-pyrroline (2-AP, main and key compound of fragrant rice aroma) content of fragrant rice are still unknown. In present study, four seedling managements (mechanized transplanting (MT), mechanized direct-seeding (MDS), seedling throwing (ST) and seeds broadcasting (BS)) combined with three fertilizer rates (450 (Fer1), 600 (Fer2) and 750 (Fer3) kg ha-1) at tillering stage were applied in a 2-yr field experiment. The results showed that the grain yield and 2-AP content differed in different seedling management and fertilizer rate treatments. The highest grain yield and 2-AP content were recorded in MTFer3 treatment which were 4.81-4.86 t ha-1 and 307.68-390.99 μg kg-1 FW, respectively, while the lowest were recorded in BSFer1 treatment which were 3.96-4.09 t ha-1 and 62.92-165.09 μg kg-1 FW, respectively. Furthermore, the lowest expression of gene BADH2 related to 2-AP biosynthesis was recorded in MTFer3 treatment. Under the same fertilizer rate treatment, MT treatment produced the highest grain yield and 2-AP content which ranged between 4.49-4.86 t ha-1 and 222.16-390.99 μg kg-1 FW, respectively. Under the same seedling management treatment, the highest or equally highest grain yield and 2-AP content were recorded in Fer3 treatment.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.81 n.2 20212021-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200128en10.4067/S0718-58392021000200128
institution Scielo Chile
collection Scielo Chile
language English
topic 2-Acetyl-1-pyrroline
fertilizer
fragrant rice
grain yield
Oryza sativa subsp. japonica
seedling
spellingShingle 2-Acetyl-1-pyrroline
fertilizer
fragrant rice
grain yield
Oryza sativa subsp. japonica
seedling
Liu,Jinhai
He,Longxin
Luo,Haowen
Wu,Tiaoyan
Zhang,Tantan
Wen,Runhao
Tian,Hua
Tang,Xiangru
Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
description ABSTRACT In fragrant rice (Oryza sativa L. subsp. japonica Kato) production, seedling management and fertilization both are important parts. However, the effects of different seedling managements and fertilizer rates on grain yield and 2-acetyl-1-pyrroline (2-AP, main and key compound of fragrant rice aroma) content of fragrant rice are still unknown. In present study, four seedling managements (mechanized transplanting (MT), mechanized direct-seeding (MDS), seedling throwing (ST) and seeds broadcasting (BS)) combined with three fertilizer rates (450 (Fer1), 600 (Fer2) and 750 (Fer3) kg ha-1) at tillering stage were applied in a 2-yr field experiment. The results showed that the grain yield and 2-AP content differed in different seedling management and fertilizer rate treatments. The highest grain yield and 2-AP content were recorded in MTFer3 treatment which were 4.81-4.86 t ha-1 and 307.68-390.99 μg kg-1 FW, respectively, while the lowest were recorded in BSFer1 treatment which were 3.96-4.09 t ha-1 and 62.92-165.09 μg kg-1 FW, respectively. Furthermore, the lowest expression of gene BADH2 related to 2-AP biosynthesis was recorded in MTFer3 treatment. Under the same fertilizer rate treatment, MT treatment produced the highest grain yield and 2-AP content which ranged between 4.49-4.86 t ha-1 and 222.16-390.99 μg kg-1 FW, respectively. Under the same seedling management treatment, the highest or equally highest grain yield and 2-AP content were recorded in Fer3 treatment.
author Liu,Jinhai
He,Longxin
Luo,Haowen
Wu,Tiaoyan
Zhang,Tantan
Wen,Runhao
Tian,Hua
Tang,Xiangru
author_facet Liu,Jinhai
He,Longxin
Luo,Haowen
Wu,Tiaoyan
Zhang,Tantan
Wen,Runhao
Tian,Hua
Tang,Xiangru
author_sort Liu,Jinhai
title Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
title_short Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
title_full Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
title_fullStr Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
title_full_unstemmed Different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
title_sort different seedling managements and fertilizer rates at tillering stage influences the yield formation and aroma content in fragrant rice
publisher Instituto de Investigaciones Agropecuarias, INIA
publishDate 2021
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200128
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AT wutiaoyan differentseedlingmanagementsandfertilizerratesattilleringstageinfluencestheyieldformationandaromacontentinfragrantrice
AT zhangtantan differentseedlingmanagementsandfertilizerratesattilleringstageinfluencestheyieldformationandaromacontentinfragrantrice
AT wenrunhao differentseedlingmanagementsandfertilizerratesattilleringstageinfluencestheyieldformationandaromacontentinfragrantrice
AT tianhua differentseedlingmanagementsandfertilizerratesattilleringstageinfluencestheyieldformationandaromacontentinfragrantrice
AT tangxiangru differentseedlingmanagementsandfertilizerratesattilleringstageinfluencestheyieldformationandaromacontentinfragrantrice
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