Flowering, fructification and seed production in plants of Polystachya concreta (Jacq.) Garay y H.R. Sweet (Orquidaceae)
نویسندگان
چکیده
منابع مشابه
Timing of Flowering and Seed Production in Three California Oaks
We examined the importance of pollen limitation to variation in acorn production of three species of California oaks (Quercus lobata, Q. douglasii, and Q. agrifolia) by testing for relationships between phenology and acorn production. Within years, trees flowering closer to the mean flowering date of the population produced significantly more acorns in two of the species. Assuming that more pol...
متن کاملReproductive cross-talk: seed development in flowering plants.
Flowering plants have evolved to be a predominant life form on earth. A common principle of flowering plants and probably one of the main reasons for their evolutionary success is the rapid development of an embryo next to a supporting tissue called the endosperm. The embryo and the endosperm are protected by surrounding maternal tissues, the integuments, and the trinity of integuments, embryo ...
متن کاملmolecular and physiological characterizations of floral scent production in rosa damascena mill.
گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...
Effects of Tillage and Mulch on Weed Seed Production and Seed Banks in Sweet Corn
Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive...
متن کاملA duplicate gene rooting of seed plants and the phylogenetic position of flowering plants.
Flowering plants represent the most significant branch in the tree of land plants, with respect to the number of extant species, their impact on the shaping of modern ecosystems and their economic importance. However, unlike so many persistent phylogenetic problems that have yielded to insights from DNA sequence data, the mystery surrounding the origin of angiosperms has deepened with the adven...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Investigación Agraria
سال: 2019
ISSN: 2305-0683
DOI: 10.18004/investig.agrar.2019.junio.65-72