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Saturday, August 1, 2020 | History

1 edition of Cold tolerance of guayule found in the catalog.

Cold tolerance of guayule

by United States. Department of Agriculture. Emergency Rubber Project

  • 222 Want to read
  • 38 Currently reading

Published in [Washington?] .
Written in English

    Subjects:
  • Guayule,
  • Effect of climate on

  • Edition Notes

    Issued Sept. 1946.

    ContributionsJenkins, M. B.
    The Physical Object
    Pagination39 l.
    Number of Pages39
    ID Numbers
    Open LibraryOL25920211M

      Cooper Tire & Rubber (), Findlay, CM, announced that, at its recent annual meeting in Albany, CA, the public-private consortium behind the Biomass Research and Development Initiative (BRDI) grant, "Securing the Future of Natural Rubber--an American Tire and Bioenergy Platform from Guayule," reported several key advancements emerging from the group's . There's renewed interested in guayule and lesquerella, two native Texas plants, said Dr. Mike Foster, a research scientist with the Texas AgriLife Research and Extension Center at Lubbock Texas AgriLife Research. Guayule produces a natural rubber with fewer proteins that does not produce the allergic reaction common rubber sometimes does.

      Because in your book, you sort of associate her with this optimistic post-Cold War milieu of Reaganism and people who felt like we won, and now we’re going to go on to keep winning. A study of the inheritance of flowering stage cold tolerance in Sorghum bicolor (L.) Moench by Enrique Romo Calderon (Book) 1 edition published in in English and .

    During the rolling process the rollers bow slightly, which results in the sheet metal being thinner on the edges. The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are not representative of the Manufacturer's Standard Gauge, which has no inherent tolerances. Many of us have preconceived notions of why we like hot, cold, snowy, sunny or rainy weather that aren't entirely based on our bodily reactions. Two people could both be standing in degree weather, for example, and have very different tolerances to it — while all .


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Cold tolerance of guayule by United States. Department of Agriculture. Emergency Rubber Project Download PDF EPUB FB2

Fertility treatments have been shown to have little effect on growth, and guayule is only slightly tolerant to soil salinity (Nakayama et al. The semiarid plateau region of the Chihuahuan desert (1, to 2, m in elevation) in which guayule occurs naturally has a temperature range between and °C.

Differential gene expression analysis. To identify genes involved in guayule rubber biosynthesis, differential gene expression analysis was conducted using the EdgeR package [].Our premise was that genes involved in rubber biosynthesis would be induced, primarily by cold, under simulated winter conditions in stems, where rubber is produced, but not in leaves where it is not; Cited by: 4.

Guayule, (Parthenium argentatum), rubber-containing desert shrub of the family Asteraceae, native to the north-central plateau of Mexico and the Big Bend area of Texas. It has small white flowers and narrow silvery leaves that alternate along the stem. Prehistoric Indians are believed to have.

1. Introduction. Parthenium argentatum is a perennial shrub, commonly known as guayule, that is native to the Chihuahuan desert of northern Mexico and southwest Texas. Mature guayule plants produce high quality natural rubber in bark parenchyma tissue, mainly during winter when night temperatures are moderately cold, between 6 and 15 °C (Bonner,Downes and Tonnet,Cited by:   Guayule, Parthenium argentatum, a desert shrub indigenous to Mexico, has been used at various times in Cold tolerance of guayule book past for the production of natural rubber.

Cited by: 2. The objective of our study was to determine the cold tolerance of new guayule germplasm in the Southern High Plains near Halfway, Texas. Materials and methods. The study was established in at the Texas AgriLife Research Station. Guayule, Parthenium argentatum, a desert shrub indigenous to Mexico, has been used at various times in the past for the production of natural rubber.

A revived interest in this plant as a rubber source has led to attempts to domesticate it and develop improved varieties. A number of other Parthenium species have been crossed with guayule, with the objective of introducing new, desirable traits. Journals & Books; Register Sign in. especially in its seedling Guayule is limited in its cold tolerance and can be damaged when exposed to a temperature of °C for only a few hours unless it is hardened exposure as Bonner rubber (Mitchell, () synthesis.

Availability surveys provided stands weather limited of Texas is that and to at. Parthenium argentatum A. Gray, commonly known as the guayule (/ ɡ w aɪ ˈ uː l iː / or / w aɪ ˈ uː l eɪ /, as in Spanish), is a perennial woody shrub in the aster family, Asteraceae, that is native to the rangeland area of the Chihuahuan Desert; including the southwestern United States and northern was first documented by J.M.

Bigelow in through the Mexican Boundary. Guayule (Parthenium argentatum) is a plant originating in Mexico that is used to produce rubber. Scientists used artificial selection to breed guayule with a relative plant from Utah, Parthenium ligulatum, and produced a hybrid plant that transferred cold tolerance to guayule.

In this example, plant growth habits and leaf shape are components. guayule is only slightly tolerant to soil salinity. Effective processing of rubber and non-rubber coproducts is essential to a viable guayule indus-try.

Rubber in guayule is found in the parenchyma cells, mainly in the bark, and must be re-leased during processing. During the present effort to commercialize guayule. It is pointed out that the cultivation of guayule will only be possible if cold-resistant forms can be found or bred.

Hope in this respect is derived from the great differences which exist between the various " botanical forms "; some of these displayed a considerable degree of resistance and it is thought that this should be increased by breeding.

Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently the world’s only source of natural rubber, is grown as a monoculture, leaving it vulnerable to both biotic and abiotic stressors.

Isolation of rubber from guayule occurs by mechanical harvesting of the entire plant. Guayule A rubber-producing plant from Mexico, guayule (Parthenium argentatum), was hybridized with their northern relatives to produce hybrid plants that could transfer cold tolerance to guayule.

ecological differences. This study suggests that the cold-tolerance trait of P. ligulatum may be transferred to guayule through interspecific hybridization followed by backcrossing. The de-velopment of cold-tolerant guayule cultivars is expected to expand the areas of guayule pro-duction beyond that of the Chihuahuan desert and similar climates.

Guayule (Parthenium argentatum) is a perennial shrub in the Asteraceae family and synthesizes a high quality, hypoallergenic cis-1,4-polyisoprene (or natural rubber; NR).Despite its potential to be an alternative NR supplier, the enzymes for cis-polyisoprene biosynthesis have not been comprehensively studied in ly, implications of the protein complex involving cis.

Natural rubber (NR) is a nonfungible and valuable biopolymer, used to manufacture ~50 rubber products, including tires and medical t production of NR is derived entirely from the para rubber tree (Hevea brasiliensis).The increasing demand for NR, coupled with limitations and vulnerability of H.

brasiliensis production systems, has induced increasing interest among scientists. Guayule has been known for years as a potential source of natural rubber. Breeding efforts have been sporadic limiting progress in guayule breeding compared to other crops. Even though the genetic base appears to be rather narrow, it has not hindered guayule breeding programs.

artificial hybridization of rubber-bearing guayule with cold-tolerant parthenium ligulatum Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. Sexually reproducing tetraploid guayule (Parthenium argentatum Gray) plants were produced by treating the shoot apices of young diploid seedlings (2n = 36) with colchicine.

The artificially induced tetraploid guayule plants were crossed with herbaceous tetraploid P. integrifolium L. (2n = 4x = 72). Interspecific hybridization was successful only when guayule was used as a female parent. Yes, there is a too-cold condition too. Since the screen actually has fluid in it, too cold can damage it.

As seen on the stated specs: Operating temperature: 50° to 95° F (10° to 35° C) Storage temperature: 13° to ° F (° to 45° C) Relative humidity: 0% to 90% noncondensing.Rating Content; Positive: OnUlrich from Manhattan Beach, CA (Zone 11) wrote: This plant yields latex or natural rubber and for this reason is being farmed in desert regions of the south-west.Cold acclimation is the phenomenon in which plants are exposed to low, but nonfreezing, temperatures before exposure to drastic temperatures.

To investigate how sunflower plants adjust their metabolism during cold treatment, a comparative proteomic approach, based on spectral counting data, was adopted to identify differentially expressed proteins in leaves of freezing susceptible (Hopi) and.