Serotinous cones of Cupressus sempervirens provide viable seeds in spite of high seed predation
نویسندگان
چکیده
منابع مشابه
Abnormal Cones in Cupressus Sempervirens
Abnormal' cones found irt Cupressus sempervirens include bisexual cones and double female and male cones. They are very infrequent, but there are individual trees ~th a tendency· to produce· ~\Jch cones. We, suggest that these cones reflect changes in normal hohnonal balance. keY, words: Cupressus sempervirens, bisexilal con~s, cones.
متن کاملImpact of insects damaging seed cones of cypress , Cupressus sempervirens , in natural stands and plantations of southeastern Europe
A total of 18 stands of Cupressus sempervireus L. (Cupressaceae) were surveyed in the natural Greek range (plus one stand in Turkey) during 1994-1996 in order to identify the pests of seed cones and assess their impact on seed survival. Naturalised stands of mainland Greece, Albania and Malta were sampled for comparison. The cone entomofauna (seven insect and one mite species) did not differ be...
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The canker-causing fungus Seiridium cardinale is the major threat to Cupressus sempervirens worldwide. We investigated the production of terpenes by canker-resistant and susceptible cypresses inoculated with S. cardinale, the effect of these terpenes on fungal growth, and the defensive biotransformation of the terpenes conducted by the fungus. All infected trees produced de novo terpenes and st...
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چکیده ارتباط در کلاس به عوامل زیادی از جمله معلمان، دانش آموزان، برنامه های درسی و از همه مهم تر، مواد آموزشی وابسته است. در تدریس ارتباطی زبان که تاکید زیادی بر توانش ارتباطی دارد، کتاب درسی به عنوان عامل موثر بر پویایی کلاس محسوب میگردد که درس ها را از طریق فراهم آوردن متن ارتباط کلاسی و هم چنین نوع تمرین زبانی که دانش آموزان در طول فعالیت های کلاسی به آن مشغول اند، کنترل می کند. این حقیقت ک...
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ژورنال
عنوان ژورنال: Annals of Forest Science
سال: 2003
ISSN: 1286-4560,1297-966X
DOI: 10.1051/forest:2003073