نتایج جستجو برای: germination speed
تعداد نتایج: 228639 فیلتر نتایج به سال:
Management and control of poisonous and allelopathic plant species are from the main priorities for restoration of range and desert ecosystems. In a glasshouse experiment, seeds of Agropyron desertorum, a perennial forage grass, were sown within the soil media containing different proportion of shoots (0, 5% and 20%) and root powder, or soil taken from the under canopy of harmal plant. Experime...
The objective of the study was to evaluate biometry fruits and seeds S. punicea in order determine point collection for production seedlings species. were collected from plants situ Barra do Ribeiro, RS. In laboratory, they separated by staining in: stage 1, 2 3. Fruits measured with digital caliper (mm), counting number locules. At each water content, seed dry matter germination test evaluated...
Priming fresh and naturally aged canola seeds with different substances observing the seed germination properties are involved in this work. Fresh of cv. “süzer” were treated distilled water, -0.8 MPa polyethylene glycol (PEG) 6000 50 mM thiamine for 8 hours. Storage showed loss capacity compared to seeds. Present findings indicate that priming can improve speed both canola. Germination percent...
Key planting factors that influence corn stand establishment includes uniform depth and spacing of seed, correct seed population and optimizing the soil environment for rapid germination and uniform emergence. Other variables affecting stand establishment are seedbed quality (including soil moisture and temperature), seed quality and planter speed. Differences among fields for stand establishme...
this study was carried out to evaluate the association between laboratory seed characteristics and seedling emergence of canola cultivars that it's were produced under different irrigation regime and planting date. the treatments were included two planting date and two levels of irrigation (main factors) and seeds of five canola cultivars (sub factor) which in first year (2006-2007) had be...
In seed technology, the use of biocompatible materials, such as chitosan, has been demonstrated to improve germination process and establishment seedlings. This research is focused on effect a chitosan coating development sesame bean plantlets. The seeds were treated with different techniques combinations chitosan: solutions at 0.1, 0.5 1% used in film coating, flakes particle sizes 1.19 mm 0.7...
The question of how plant species foreign to a biological system can disperse and turn into an environmental problem is very important for the control of the invasive plant species, especially for insular ecosystems, which are more susceptible to biological invasions. We analyzed the role played by the European rabbit (Oryctolagus cuniculus) in the seed dispersal of the invasive scrub Acacia fa...
Protein synthesis in gibberellin-treated lettuce (Lactuca sativa) seeds has been studied during the lag phase between the beginning of imbibition and the first signs of radicle protrusion. When compared to the water-imbibed controls, both polyribosome populations and radioactive leucine incorporation into protein increase in the embryos of GA(3)- induced seeds early in the imbibition period. Si...
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