Growth duration and above-ground dry-matter partitioning in oats

Duration of vegetative, generative, and grain-filling phases contribute to dry-matter accumulation and partitioning. Fourteen oat (Avena saliva L.) cultivars and six breeding lines were evaluated at the Viikki Experimental Farm, University of Helsinki, in 1988-1990. The following observations were m...

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Main Author: Pirjo Peltonen-Sainio
Format: Article
Language:English
Published: Scientific Agricultural Society of Finland 1994-03-01
Series:Agricultural and Food Science
Online Access:https://journal.fi/afs/article/view/72694
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author Pirjo Peltonen-Sainio
author_facet Pirjo Peltonen-Sainio
author_sort Pirjo Peltonen-Sainio
collection DOAJ
description Duration of vegetative, generative, and grain-filling phases contribute to dry-matter accumulation and partitioning. Fourteen oat (Avena saliva L.) cultivars and six breeding lines were evaluated at the Viikki Experimental Farm, University of Helsinki, in 1988-1990. The following observations were made: (1) a short vegetative period accumulated less dry-matter into vegetative plant organs and resulted in higher grain yield and harvest index (HI), (2) a long period for maximum floret initiation yielded more grains per panicle and high panicle weight and (3) a short grain-filling period yielded high rates of panicle and grain filling associated with high HI. Hence, oat breeding and crop management should aim at improving the synchronization of the growth phases as shown in this study.
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spelling doaj.art-7f27bcbfd7dd4a35ad3737d5f543a2ae2022-12-22T00:25:51ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18951994-03-0132Growth duration and above-ground dry-matter partitioning in oatsPirjo Peltonen-Sainio0Department of Plant Production, P.O.Box 27, FIN-00014 University of Helsinki, FinlandDuration of vegetative, generative, and grain-filling phases contribute to dry-matter accumulation and partitioning. Fourteen oat (Avena saliva L.) cultivars and six breeding lines were evaluated at the Viikki Experimental Farm, University of Helsinki, in 1988-1990. The following observations were made: (1) a short vegetative period accumulated less dry-matter into vegetative plant organs and resulted in higher grain yield and harvest index (HI), (2) a long period for maximum floret initiation yielded more grains per panicle and high panicle weight and (3) a short grain-filling period yielded high rates of panicle and grain filling associated with high HI. Hence, oat breeding and crop management should aim at improving the synchronization of the growth phases as shown in this study.https://journal.fi/afs/article/view/72694
spellingShingle Pirjo Peltonen-Sainio
Growth duration and above-ground dry-matter partitioning in oats
Agricultural and Food Science
title Growth duration and above-ground dry-matter partitioning in oats
title_full Growth duration and above-ground dry-matter partitioning in oats
title_fullStr Growth duration and above-ground dry-matter partitioning in oats
title_full_unstemmed Growth duration and above-ground dry-matter partitioning in oats
title_short Growth duration and above-ground dry-matter partitioning in oats
title_sort growth duration and above ground dry matter partitioning in oats
url https://journal.fi/afs/article/view/72694
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