Textbook of Theoretical Botany, Volume 2 |
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Page 1434
... germination of Typha pollen after 336 days ( condi- tions not stated ) but only 56 per cent . germinated after 158 days . Other long - lived pollens are those of Viola odorata ( 235 days dry , but only 35 days in air ) , Primula elatior ...
... germination of Typha pollen after 336 days ( condi- tions not stated ) but only 56 per cent . germinated after 158 days . Other long - lived pollens are those of Viola odorata ( 235 days dry , but only 35 days in air ) , Primula elatior ...
Page 1505
... germination under natural conditions , and ends when the seed becomes germinable , which , again under natural conditions , usually means that germination takes place . Thus true or obligate dormancy should be dis- tinguished from ...
... germination under natural conditions , and ends when the seed becomes germinable , which , again under natural conditions , usually means that germination takes place . Thus true or obligate dormancy should be dis- tinguished from ...
Page 1572
... germination is the swelling of the seed by the absorption of water . The content of water rises from the 5-10 per ... germination . We have seen previously that the testas of many seeds are almost completely impermeable and that water ...
... germination is the swelling of the seed by the absorption of water . The content of water rises from the 5-10 per ... germination . We have seen previously that the testas of many seeds are almost completely impermeable and that water ...
Contents
FLOWERS | 1071 |
POLLINATION AN INTRODUCTION | 1252 |
SEEDS FRUITS AND SEEDLINGS | 1481 |
2 other sections not shown
Common terms and phrases
actinomorphic anatropous androecium Angiosperms anthers antipodal apex axile axis basal base bracts calyx capsule carpels cells colour common contains corolla corolla tube cotyledons cross-pollination cultivated dehisce Dicotyledons dispersal distributed elongated embryo sac enclosed endosperm example female flowers fertilization filaments fleshy floral florets Flowering shoot flowers Fig fruit funicle gardens genera genus germination gynoecium hairs herbs hermaphrodite hypocotyl important inflorescence inner insect integument involucre later layer leaf leaves lobes loculus male flowers margins mature micropyle Monocotyledons nectar Nectar is secreted normal nucellus nuclei occur oosphere outer ovary ovules parietal perianth perianth segments petaloid petals placenta plants pollen grains pollen tube pollination mechanism produced rarely receptacle rhizome seeds self-pollination sepals separate showing shrubs single sometimes species stage stamens stem sterile stigma structure style sub-family surface testa tissue trees tropical unisexual usually vegetative visited wall whorl zygomorphic