in recent years, shallow bark canker of walnut (juglandis regia l.) trees has become fairly widespread in iran. to determine the distribution of the disease in golestan, mazandaran and gilan provinces, from early summer to mid-fall seasons of 2004, more than one hundred bark samples were collected from walnut trees showing symptoms of shallow bark canker. sixty strains of bacteria were isolated...

Vigorous Summer Growth Peak growth of these grasses occurs during summer. They break dormancy in late March and early April and then grow rapidly from mid-May through midsummer. In late summer, growth slows until fall dormancy, usually in October. The maturity dates of the various species vary somewhat, but all follow this pattern. They remain dormant through winter. Five Key Species While ther...

Thrips tabaci is a major pest of high-value vegetable crops and understanding its population genetics will advance our knowledge about its ecology and management. Mitochondrial cytochrome oxidase subunit I (COI) gene sequence was used as a molecular marker to analyze T. tabaci populations from onion and cabbage fields in New York. Eight COI haplotypes were identified in 565 T. tabaci individual...

in order to estimate the nutrient value of three dominant range species; festucaovina, trifolium montanum and alopecurus textilis via proximate analyses and gas productiontechnique, samples were collected in three stages during grazing period from 26th may to 1thseptember in six areas of sabalan mountain in north west of iran. results showed thattrifolium montanum as a legume had higher values ...

In order to estimate the nutrient value of three dominant range species; Festucaovina, Trifolium montanum and Alopecurus textilis via proximate analyses and gas productiontechnique, samples were collected in three stages during grazing period from 26th May to 1thSeptember in six areas of Sabalan Mountain in North West of Iran. Results showed thatTrifolium montanum as a legume had higher values ...

nomad’s livelihood is based on continuous migration between summer and winter pastures to obtain forage for their animals and access to contented weather. this living way has long history in iran which formed in accord with climate. in recent century, modernization has been caused many changes in traditional living way of nomads. therefore, nomads have no more their role and function as in th...

This study was done to investigate the effects of varying dietary protein levels (DPLs) and season on fecal microbes and odorous compounds in growing and finishing pigs. Thirty-six Landrace pigs were blocked based on their body weight and within each block assigned to one of the three dietary treatments (3 replicates (pens) per treatment). The DPLs used in the growing stage were 142.7, 155.4 an...

[1] We have measured winds using cloud motion in consecutive Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) wide-angle global map swaths taken during the first mapping year (Ls 135 –360 –111 ). We present a total of 11,200 wind vectors collected in the north polar region during Ls 135 –195 (late summer/early fall) and Ls 20 –55 (mid spring) and in the south polar region during Ls 337 –10 ...