منابع مشابه
Storage of Seeds
Introduction 86 Factors Affecting Longevity of Seeds 86 Seed Characteristics 86 Basic seed physiology 86 Seed morphology 88 Chemical composition 88 Seed maturity 89 Seed Handling Prior to Storage 89 Storage Environment 89 Moisture 89 Temperature 90 Atmosphere 91 Storage Facilities 92 Cold storage 92 Containers 92 Moisture Control 93 Storage Recommendation 93 Orthodox Seeds 93 Temperate-Recalcit...
متن کامل21, 20-Anhydromelianone and Melianone from Simarouba amara (Simaroubaceae); Carbon-13 NMR Spectral Analysis of 7-Tirucallol-Type Triterpenes
Further examination of the hexane extract of the root bark of Simarouba amara (Simaroubaceae) has led to the isolation of two side chain oxygenated A’tirucallol-type triterpenes in addition to the already reported compounds 4 and S. One has been found to be identical with the known melianone 8 and the second is a new compound and has been shown to be 21,20-anhydromelianone 11. The 13C-NMR spect...
متن کاملMorphology and anatomy of developing fruits and seeds of Vismia guianensis (Aubl.) Choisy (Clusiaceae).
Morphological, structural and developmental features of fruits and seeds of Vismia guianensis (Aubl.) Choisy. are here presented, with the purpose to elucidate their structure and to contribute to taxonomical and ecological studies of the family. The fruit is a berry and the "rind" is constituted by the exocarp and by the subepidermal layers which constitute the mesocarp. The reddish pulp, rich...
متن کاملChemical constituents of Simarouba versicolor.
From the roots, stems and fruits of Simarouba versicolor (Simaroubaceae) were isolated quassinoids (3, 5-7), triterpenoids (8-14), a mixture of steroids (15-17), the flavonoid kaempferol (18) and the squalene derivative 11,14-diacetoxy-7,10; 15,18-diepoxy-6,19-dihidroxy-6,7,10,11,14,15,18,19-octahydrosqualene (19). Spectral data were used for structural characterization.
متن کاملStorage of Calophyllum brasiliense Cambess. seeds.
Calophyllum brasiliense is a species native to Brazil and has potential for use in the timber industry, in the reforestation of degraded areas, besides having medicinal properties. Its propagation is mainly by seeds which, depending on their recalcitrant characteristics, leads to difficulty in conservation, due to changes in its physiological potential during storage. Aiming to contribute to th...
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ژورنال
عنوان ژورنال: Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais
سال: 2021
ISSN: 2317-6237,1981-8114
DOI: 10.46357/bcnaturais.v16i1.253