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Effect of Shade on Seed Germination , Growth and Xylem Development of Moringa oleifera Seedlings

L. Tewfik,A. Mohamed

Published 2010 in Unknown venue

ABSTRACT

Title: Effect of Shade on Seed Germination, Growth and Xylem Development of Moringa oleifera Seedlings (Alrawag seedlings) Lamia Tewfik Ahmed Mohamed This study investigated the effect of shade as a moderator of light intensity and temperature on germination percentage and germination rate, biomass accumulation and partitioning and xylem development of seedlings of Moringa oleifera. Three levels of shade were studied: high shade (80%), medium shade (50%) and no shade (0%). Germination rate and germination percentage were calculated after two weeks from seed sowing. Four sequential harvests were carried out starting from four weeks after seed sowing. Seedling growth parameters (shoot length, root length, shoot dry mass, root dry mass, total dry mass and root/shoot ratio of the dry mass) were assessed at each harvest. Cross sections were prepared from the lower and middle parts of the stems at each harvest and anatomical parameters were measured (vessel volume fraction, vessel diameters, number of vessel and volume fraction of lignified cells). Result showed that the effect of shade was significant on germination, seedling growth and anatomical parameters. The medium shade (50%) had significantly fast rate of germination than no shade and higher germination percentage than high shade. Generally, the medium shade

PUBLICATION RECORD

  • Publication year

    2010

  • Venue

    Unknown venue

  • Publication date

    Unknown publication date

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    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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