Search results
Results From The WOW.Com Content Network
Frost resistance is the ability of plants to survive cold temperatures. Generally, land plants of the northern hemisphere have higher frost resistance than those of ...
One of the first studies made on soil salinity and plant response was published in the USDA Agriculture Handbook No. 60, 1954. [4] More than 20 years later Maas and Hoffman published the results of an extensive study on salt tolerance. [5] In 2001, a Canadian study provided a substantial amount of additional data. [6]
Resistance to drought is a quantitative trait, with a complex phenotype, often confounded by plant phenology. Breeding for drought resistance is further complicated since several types of abiotic stress, such as high temperatures, high irradiance, and nutrient toxicities or deficiencies can challenge crop plants simultaneously.
Lighter Side. Medicare. News
Various hardiness ratings are published. In the United States (US), the most widely used is the U.S. Department of Agriculture (USDA) system of hardiness zones based on average minimum yearly temperatures. [4] This system was developed specifically for the extremely diverse range of conditions in the US, from baking desert to frozen tundra.
New work in the field focuses primarily on four different topics. [7] These include: Identification of novel genes and their protein products found in freeze tolerant species. Exploration of a huge range of other genes/proteins that address many different issues in cell preservation and viability.
However, abiotic stress resistance is being explored in ornamental plants by Ornamental Biosciences. Transgenic Petunias, Poinsettias, New Guinea Impatiens, and Geraniums are being evaluated for frost, drought, and disease resistance. [19] This will allow for a wider range of environments in which these plants can grow.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!