Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum

Seed development and seed shedding were studied in seven populations of Lolium multiflorum. Five of these populations were from the North Italian Plains, two from the Piedmont area and three from the Lombardy region. The remaining populations were Delecta, a variety derived from ecotypes from the Lo...

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Main Authors: Raja Harun, Raja Muhammad, Bean, E. W.
Format: Article
Language:English
Published: Blackwell Scientific Publications 1979
Online Access:http://psasir.upm.edu.my/id/eprint/33868/1/0001.pdf
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author Raja Harun, Raja Muhammad
Bean, E. W.
author_facet Raja Harun, Raja Muhammad
Bean, E. W.
author_sort Raja Harun, Raja Muhammad
collection UPM
description Seed development and seed shedding were studied in seven populations of Lolium multiflorum. Five of these populations were from the North Italian Plains, two from the Piedmont area and three from the Lombardy region. The remaining populations were Delecta, a variety derived from ecotypes from the Lombardy Plain, and RvP Lemtal. Seed shedding was greatest in the three ecotypes from the Lombardy Plain and lowest in RvP Lemtal. The two ecotypes from the Piedmont Plain, and Delecta, gave intermediate values. Moisture loss during ripening was greatest in the Lombardy ecotypes but there were no differences in the time taken to reach maximum 1000-seed weight. Germination values had reached a maximum 27 d after anthesis in all populations. It is suggested that the North Italian ecotypes, or varieties derived from them, should be harvested by direct combining at a moisture concentration of 450 g kg-1 (≡45%) to obtain the maximum weight of germinable seed.
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spelling upm.eprints-338682016-09-29T03:22:32Z http://psasir.upm.edu.my/id/eprint/33868/ Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum Raja Harun, Raja Muhammad Bean, E. W. Seed development and seed shedding were studied in seven populations of Lolium multiflorum. Five of these populations were from the North Italian Plains, two from the Piedmont area and three from the Lombardy region. The remaining populations were Delecta, a variety derived from ecotypes from the Lombardy Plain, and RvP Lemtal. Seed shedding was greatest in the three ecotypes from the Lombardy Plain and lowest in RvP Lemtal. The two ecotypes from the Piedmont Plain, and Delecta, gave intermediate values. Moisture loss during ripening was greatest in the Lombardy ecotypes but there were no differences in the time taken to reach maximum 1000-seed weight. Germination values had reached a maximum 27 d after anthesis in all populations. It is suggested that the North Italian ecotypes, or varieties derived from them, should be harvested by direct combining at a moisture concentration of 450 g kg-1 (≡45%) to obtain the maximum weight of germinable seed. Blackwell Scientific Publications 1979 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/33868/1/0001.pdf Raja Harun, Raja Muhammad and Bean, E. W. (1979) Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum. Grass and Forage Science, 34 (3). pp. 215-220. ISSN 0142-5242 10.1111/j.1365-2494.1979.tb01470.x
spellingShingle Raja Harun, Raja Muhammad
Bean, E. W.
Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title_full Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title_fullStr Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title_full_unstemmed Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title_short Seed development and seed shedding in North Italian ecotypes of Lolium multiflorum
title_sort seed development and seed shedding in north italian ecotypes of lolium multiflorum
url http://psasir.upm.edu.my/id/eprint/33868/1/0001.pdf
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