The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 48
... plant diseases . Daylight . Light is the source of energy for plants . The response of plants to light is dependent upon light inten- sity , quality , and daily duration or photoperiod . The seasonal variation in day length affects the ...
... plant diseases . Daylight . Light is the source of energy for plants . The response of plants to light is dependent upon light inten- sity , quality , and daily duration or photoperiod . The seasonal variation in day length affects the ...
Page 50
... plants as the Blackstone type . Seed size and plant- growth pattern of a vegetable are major factors that govern the number of plants raised in a given area . The trend in the early 1970s was to increase plant population for many crops ...
... plants as the Blackstone type . Seed size and plant- growth pattern of a vegetable are major factors that govern the number of plants raised in a given area . The trend in the early 1970s was to increase plant population for many crops ...
Page 51
... plants from frost . As the water freezes on the plant leaves , it loses heat that is absorbed by the plant leaves , maintaining leaf tempera- ture at 32 ° F ( 0 ° C ) . Because of the sugars and other substances in plant cells , the ...
... plants from frost . As the water freezes on the plant leaves , it loses heat that is absorbed by the plant leaves , maintaining leaf tempera- ture at 32 ° F ( 0 ° C ) . Because of the sugars and other substances in plant cells , the ...
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6th century animal architecture artists Asuka period became bronze Bronze Age Buddhist buildings built Byzantine carved cell centimetres central centre century BC China Chinese Christian church Classical colour court courtesy culture Decorative arts dynasty early east eastern emperor example feet Figure French Greek hall Han dynasty Heian period Hōryū-ji important infection influence islands Italy Japan Japanese Kamakura period known Korean Kyōto late later ment metres mosaics motifs Muromachi period Museum Nara Nara period National northern ornament pagoda painters painting palace patterns percent period phage plant political population portraits pottery produced region relief river Roman Rome scenes scroll sculpture Shōsō-in South Vietnam southern stone style Sung surviving T'ang technique temple tion tombs tradition ture Unified Silla Uzbek variation varves vase vegetables Venezuela Venus Vermont vibration Vietnam Vietnamese viral virus viruses Vistula wall ware Western Yüan