Life Sciences Commons^™

Life History And Ecology Of The Great Basin Sagebrush Swift, Sceloporus Graciosus Graciosus Baird And Girard, 1852, Gary L. Burkholder, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 19 No. 5

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 5

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Taxonomic Study Of The Western Collared Lizards, Crotaphytus Collaris And Crotaphytus Insularis, Nathan M. Smith, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The heterogeneous nature of the collared lizards west of the Colorado River prompted this study. Samples from known populations of C. c. auriceps, C. c. baileyi, and C. c. fruscus were used as a base for defining the western populations. External morphology and cranial morphology were compared by cluster, canonical, and discriminant analyses.

Results of these analyses show a western complex of four populations which are distinct from the three base populations of the collaris complex. Members within the western complex are distinguishable with at least 90 percent reliability by discriminant analysis. Because of intergradation patterns seen in western Sonora, …

A Comparison Of Meteorologic Measurements From Irrigated And Non-Irrigated Plots, Provo, Ut, 1970–1972, Ferron L. Andersen, Phil D. Wright, J. Carl Fox

Brigham Young University Science Bulletin, Biological Series

A comparative study of micrometeorologic conditions on irrigated and non-irrigated pasture plots was conducted at Provo, Utah, from 1970 to 1972. Daily measurements were taken of the following: precipitation cither as rain or snow, new snowfall and total snow depth during the winter; relative humidity in a standard weather shelter; number of hours at maximum relative humidity; cloud cover each morning; potential evaporation; total wind 1 m above ground level; temperature extremes in a standard weather shelter; and temperatures both on irrigated and non-irrigated plots with sensing devices located 5 cm beneath soil surface under grass cover, at soil surface …

Front Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Taxonomy Of The Genus Chloris (Gramineae), Dennis E. Anderson

Brigham Young University Science Bulletin, Biological Series

This study is a worldwide taxonomic treatment utilizing endomorphic characters such as cytology, histology, and embryology, in addition to the traditional exomorphic features. New chromosome numbers and histological information are reported. Relationships between Chloris and other genera in the Chlorideae are discussed. A total of 56 species is recognized in the genus; each is described and illustrated. Complete synonymies are included as well as a list of unidentified or rejected names. Distributions and maps are given for each species, along with lists of specimens examined during studies at various herbaria. Reports of field studies involving introgression among certain species are …

Front Matter, Vol. 19 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A New Species Of Dichelostemma (Liliaceae) From California, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Abronia: Ii. Anthocarp Polymorphism And Anatomy For Nine Species Of Abronia Found In California, Ruth C. Wilson

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Comparative Wood Anatomy Of Malosma And Related Genera (Anacardiaceae), David A. Young

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

A Phylogenetic Classification Of The Annoniflorae, Robert F. Thorne

Aliso: A Journal of Systematic and Floristic Botany

A synoptical key to the three orders Annonales, Berberidales, and Nymphaeales of the superorder Annoniflorae is presented with discussion as to why these orders, the core of the histmical Ranales, are considered to be closely related to one another but divergent from the similarly plimitive Hamamelidales of the Hamamelidiflorae, and why the names Annonales and Berberidales are preferred to the names Magnoliales and Ranunculales. For each of the three orders detailed synoptical keys to the 33 families and 30 subfamilies (21 additional to the typical subfamilies) recognized by the author are presented. Also the included families of each order are …

Percy C. Everett (1902-1973), Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Wheat Breeding, J T. Reeves, N. Roy

Journal of the Department of Agriculture, Western Australia, Series 4

In a normal harvest about 90 per cent of Western Australia's wheat production is exported overseas, where it is used in a wide range of products including noodles, bread, "steamed" bread, chapattis and biscuits

Wheat breeders in W.A. therefore have the problem of developing new varieties suited to many end uses, not all of which have the same quality requirements.

Pasture Seeds : Production Techniques And The Future Market Situation, B J. Quinlivan

Journal of the Department of Agriculture, Western Australia, Series 4

Like other farming and grazing industries, pasture seed production has its share of booms and slumps —perhaps more than its share. In Western Australia, the industry reached a high point during the mid-1960's when land development along the south and west coastal districts was at its height.

The drought year of 1969 and the subsequent rural depression saw pasture seed production fall to its lowest level for ten years and it is only in the last 12 months that there has been a revival.

With the sudden upsurge of interest last summer there will be many potential seed producers now …

Crop Recommendations (1975) And Variety Trials (1973-1974), Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Variety recommendations for 1975 were derived mainly from results of 259 trials conducted at 60 sites in 1973. The main programme included wheat, oat, barley and lupin trials sown at 43 sites in wheatbelt areas; biscuit wheat trials on 12 sites in southern medium and high rainfall areas, and special hard wheat trials on 12 heavy land sites in low rainfall areas.

Also included was a series of early-sowing trials with lupins, wheat and barley; linseed trials in southern coastal areas, and preliminary wheat, oat and barley variety trials on research stations.

Zinc Nutrition Of Rice Plants As Influenced By Seed Germinated In Zinc Solutions, Narsimaha R. Kasireddy, Lyell F. Thompson

Journal of the Arkansas Academy of Science

In recent years a physiological disorder of rice (Oryza sativa L.) seedlings growing in soils high in exchangeable calcium has been diagnosed as zinc deficiency. Calculations show that less than 30 g of zinc is needed to satisfy the nutrition of a hectare of 6-8-wk-old rice plants. Rice seed was soaked and germinated in dilute solutions of zinc ethylenediamine tetraacetate, zinc sulfate and zinc lignosulfonate prior to planting in greenhouse pots containing a zinc-deficient soil. The rice plants grown from the zinc-treated seed produced more growth and sorbed more zinc than rice plants grown from untreated seed.

Linseed : A Forgotten Crop, M L. Poole, R. J. Guyton, H. M. Fisher

Journal of the Department of Agriculture, Western Australia, Series 4

Linseed has become a forgotten crop in Western Australia. From a peak production of 6 200 tonnes from 12 500 hectares in 1969, and an apparently bright future, it dwindled to a bare 80 tonnes from 250 hectares in 1973.

This article looks at some of the reasons for this decline and, with linseed fetching all-time record prices on world markets, gives reasons why the crop should be grown.

Grain Moisture Problems On The South Coast, J A. Parish, G. H. Jones

Journal of the Department of Agriculture, Western Australia, Series 4

In most West Australian grain growing districts high temperatures and dry weather at grain maturation are ideal for harvesting and enable delivery of grain with acceptable moisture levels. Grain from W.A. is known in world markets as a good quality dry product which is unlikely to deteriorate in storage. However, growers in coastal areas and particularly those south of Narrogin sometimes have trouble harvesting grain below the receival limit of 12 per cent moisture.

Grain Moisture And The Weather : What Can The Records Tell Us?, M W. Perry, P. A. Fievez

Journal of the Department of Agriculture, Western Australia, Series 4

The expansion of cereal production in areas along the south coast has exposed harvesting problems associated with high grain moisture.

A grain delivery standard of 12 per cent moisture means that, in the absence of grain drying facilities, harvesting times in the field are restricted to those hours when grain moisture falls below this figure.

Grain moisture, however, remains the major problem and for planning purposes, producers require an estimate of the harvesting time available in a given year. This will depend on all the climatic variables which affect grain moisture. These include rainfall and dew which deposit water directly …

Nitrogen Fertilisers For Pasture Production, Walter Jacob Cox, K Hawley

Journal of the Department of Agriculture, Western Australia, Series 4

At current prices nitrogen fertiliser is not an economic substitute for good clover pastures, but it can supplement the system by increasing nitrogen supply at peak growth periods. It can also provide useful increases in pasture production at critical feed times. Nitrogen usage for pasture production is still in the experimental stages and small areas should be tried before large-scale application.

The Place Of Lucerne In Western Australian Agriculture, N J. Halse, C. M. Francis

Journal of the Department of Agriculture, Western Australia, Series 4

Lucerne, the world's most important fodder legume, has never won largescale acceptance in West Australian farming, largely because of our success with productive subterranean clover pastures. But recent disease problems on sub. clover stands have led to greater interest in alternative species, especially lucerne, for higher rainfall areas.

This article summarises our knowledge of lucerne establishment and management in W.A. and reviews current research aimed at achieving better results from lucerne.

Forage Production From Shrubs On Saline Land, C V. Malcolm

Journal of the Department of Agriculture, Western Australia, Series 4

In the first volume of the Journal of the Department of Agriculture in the year 1900, the results of experiments at Tulare Experiment Station in California on the growing of Australian saltbushes are reported.

Seed was first sent from Australia by Baron von Mueller in June, 1881. Three species of saltbush (A. semibaccata, A. numularia and A. vesicaria) are all reported to have grown well.

Although C. A. Gardner in 1929 suggested the growing of saltbushes for forage, the earliest and clearest recommendations are those of Teakle and Burvill in 1945.

Early research tended to concentrate mainly on the possibility …

New Species Of American Bark Beetles (Scolytidae, Coleoptera), Stephen L. Wood

Brigham Young University Science Bulletin, Biological Series

The following 156 species of American Scolytidae are described as new to science: Cnesinus reticulus (Venezuela), C. beaveri (Brazil), C. teretis (Venezuela), C. alienus (Venezuela), C. deperditus (Colombia), C. fulgens (Venezuela), C. fulgidus (Colombia), C. lucaris (Venezuela), C. triangularis (Colombia), C. brighti (Mexico), C. coracinus (Mexico), Bothrosternus lucidus (Brazil), Hylastes niger (Mexico), Xylechinus mexicanus (Mexico), Phloeotribus nanus (Brazil), Chramesus corniger (Mexico), Ch. disparilis (Mexico), Ch. variabilis (Mexico), Ch. microporosus (Mexico), Ch. aquilus (Mexico), Ch. wisteriae (Mississippi), Ch. marginatus (Mexico), Carphoborus piceae (Oregon), Carphobius cupressi (Guatemala), Cladoctonus atrocis (Brazil), Scolytodes canalis (Mexico), S. costabilis (Mexico), Pseudothysanoes contrarius (Mexico), P. recavus (Mexico), …

Front Matter, Vol. 19 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.