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Photoperiodic Effects on Growth, Photosynthesis, and Biomass Allocation in Leafy Vegetables in Controlled Environments.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Photoperiodic Effects on Growth, Photosynthesis, and Biomass Allocation in Leafy Vegetables in Controlled Environments./
Author:	Palmer, Shane.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	104 p.
Notes:	Source: Masters Abstracts International, Volume: 81-12.
Contained By:	Masters Abstracts International81-12.
Subject:	Horticulture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27831248
ISBN:	9798645490959

Photoperiodic Effects on Growth, Photosynthesis, and Biomass Allocation in Leafy Vegetables in Controlled Environments.
Palmer, Shane.

Photoperiodic Effects on Growth, Photosynthesis, and Biomass Allocation in Leafy Vegetables in Controlled Environments. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 104 p.

Source: Masters Abstracts International, Volume: 81-12.

Thesis (M.S.)--University of Georgia, 2020.

This item must not be sold to any third party vendors.

Three studies investigated photoperiodic manipulation, photosynthetic productivity, and biomass allocation in a variety of leafy green crops: lettuce (Lactuca sativa), turnip (Brassica rapa ssp. rapa), mizuna (B. rapa ssp. nipposinica), and pak choi (B. rapa ssp. chinensis). In Study 1, longer photoperiods with lower light intensity resulted in lettuce and mizuna plants with higher photosynthetic efficiency, higher chlorophyll content, and higher biomass. Study 2 compared relative biomass allocation over time among turnip, mizuna, and pak choi in a greenhouse. Relative proportions of leaf, petiole, and root biomass were initially similar among subspecies, but changed over time until roots were the primary biomass in turnip, leaves were the primary biomass in mizuna and leaves and petioles had equal biomass in pak choi. In Study 3, longer photoperiods with lower light intensity did not significantly alter total biomass or relative biomass of most tissues in turnip, mizuna, or pak choi.

ISBN: 9798645490959Subjects--Topical Terms:

1058420
Horticulture.
Subjects--Index Terms:

Biomass allocation

Photoperiodic Effects on Growth, Photosynthesis, and Biomass Allocation in Leafy Vegetables in Controlled Environments.
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500 $a Source: Masters Abstracts International, Volume: 81-12.
500 $a Advisor: van Iersel, Marc W.
502 $a Thesis (M.S.)--University of Georgia, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Three studies investigated photoperiodic manipulation, photosynthetic productivity, and biomass allocation in a variety of leafy green crops: lettuce (Lactuca sativa), turnip (Brassica rapa ssp. rapa), mizuna (B. rapa ssp. nipposinica), and pak choi (B. rapa ssp. chinensis). In Study 1, longer photoperiods with lower light intensity resulted in lettuce and mizuna plants with higher photosynthetic efficiency, higher chlorophyll content, and higher biomass. Study 2 compared relative biomass allocation over time among turnip, mizuna, and pak choi in a greenhouse. Relative proportions of leaf, petiole, and root biomass were initially similar among subspecies, but changed over time until roots were the primary biomass in turnip, leaves were the primary biomass in mizuna and leaves and petioles had equal biomass in pak choi. In Study 3, longer photoperiods with lower light intensity did not significantly alter total biomass or relative biomass of most tissues in turnip, mizuna, or pak choi.
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653 $a Brassica rapa
653 $a Controlled environment agriculture
653 $a Daily light integral
653 $a Light emitting diodes
653 $a Photoperiod
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