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...

Herbicides that inhibit acetyl coenzyme A carboxylase (ACCase) are commonly used in Mexico to control weedy grasses such as little seed canarygrass (Phalaris minor). These herbicides are classified into three major families (ariloxyphenoxypropionates (APP), cyclohexanodiones (CHD), and, recently, phenylpyrazolines (PPZ)). In this work, the resistance to ACCase (APP, CHD, and PPZ) inhibiting her...

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...