نتایج جستجو برای: phalaris minor
تعداد نتایج: 82024 فیلتر نتایج به سال:
Merino lambs born in September and October 1964 were weaned at 4, 6 and 11 weeks of age, at average liveweights of 9 kg, 12 kg, and 19 kg respectively, on to a pasture of phalaris and white clover. The lambs remaining with their mothers for 11 weeks showed the earliest onset of an appreciable worm infection which reached a peak in December about one month after weaning. Similar levels of infect...
An early English explorer of North America, Captain John Smith reported use of a wild food called mattoume by native inhabitants of Virginia. Botanical identification of mattoume has been a mystery. In an attempt to solve the mystery of which plant species Captain Smith observed, I compare the botanical descriptions of wild rice and several other possible species that were mentioned either in s...
Fifty two crossbred ewes conceiving to a synchronised oestrus in January 1987 were ultrasound scanned for littersize and subsequently allocated according to littersize to twogroups (Lupin or Sorghum grain). The ewes grazed on dry Phalaris/clover pastures with supplementation (200 g/h/d) commencing 'at 100 days post conception at a rate of 200 g/h/d and continuing until parturition at which time...
Recent discussion about pasture persistence concentrates on pastures based on perennial ryegrass, the most commonly used grass species. This paper raises the question as to whether some of the causes of poor pasture persistence are due to perennial ryegrass being used in environments to which it is not suited. The adaptation to environmental stresses, particularly water, temperature and nutrien...
To quantify the rate of oxidation of tritium gas (referred to as HT) to tritiated water in the environment, various woody and herbaceous plant leaves and roots, mosses and lichens taken from a forest and fields in Ibaraki prefecture, and a forest in Toki, Gifu prefecture, were investigated as to their ability to oxidize atmospheric HT in in vitro experiments. The HT oxidation activity in vegeta...
Phalaris aquatica L. (phalaris) is a cool-season perennial grass originating from the Mediterranean Basin, north-west Africa and Middle Eastern regions that used for livestock agriculture mainly in temperate areas with dry summers. It has been subject of breeding programs Australia, South America, New Zealand USA. Increased knowledge relationships between wild cultivated germplasm through use m...
allelopathy is one of the valuable tools in weed management that recently is considered in sustainable agriculture and reduces herbicide rate challenges. in order to study the allelopathic effects of rye (secale cereal l.) on six weed spices seeds including milk thistle (silybum marianum l.) gaertn, wimmer ryegrass (lolium rigidum gaudin), lesser canarygrass (phalaris minor retz.), charlock mus...
آللوپاتی از جمله ابزارهای موجود در مدیریت علف های هرز می باشد که اخیراً به دلیل حرکت به سوی کشاورزی پایدار و کاهش مصرف علف کش ها مجدداً مورد توجه قرار گرفته است. به منظور بررسی اثرات آللوپاتیک چاودار (secale cereale l.) روی شش گونه علف هرز خارمریم (silybum marianum (l.) gaertn.)، چچم (lolium rigidum gaudin)، خونی واش (phalaris minor retz.)، خردل وحشی (sinapis arvensis l.)، خرفه (portulaca olerace...
بیماری لکه قهوه ای، یکی از بیماریهای بذرزاد برنج است که در کلیه مراحل رشد گیاه از خزانه تا مزرعه، روی گیاه دیده می شود و خساراتی را از جنبه کیفی و کمی به محصول وارد میکند. هر چند این بیماری در بیشتر نقاط کشور که در آنها برنج کشت می شود وجود دارد، ولی اطلاعات دقیقی از پراکندگی بیماری، تنوع گونه ها و همچنین میزان خسارتهای وارده در استان گلستان موجود نیست. از اینرو، مطالعاتی در زمینه شناسایی ب...
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