Sentences with phrase «more weedy»

Greg Henry of the University of British Columbia reports that in the area of Nunavut he's studied, the tundra has warmed about 1 °C each decade since the 1970s — something which he attributes to the growth of more weedy plants in the region.

If the provitamin A trait is transferred by out - crossing from GR2E rice into other cultivated or weedy rice, progeny plants will not exhibit an altered selection advantage that could cause them to become more weedy or invasive in managed or unmanaged ecosystems.

Not exact matches

If you can spare a couple of hours per week or more, we'd love your help tending this weedy but beautiful space.

For example, the amount of weedy non-native plants across all research sites increased, suggesting that the plant community responded more strongly to environmental changes caused by high - intensity wildfire than disturbances from logging.

Snow wants to do more studies «to figure out if these plants would become a lot weedier.»

Along the banks, the roots of weedy tamarisk shrubs guzzle even more water, and sedges grow in depressions — a sign of moisture pooling where it isn't needed.

In response to these pressures, weedy forms that evolved from the crop forms are taking on traits more like those of wild ancestors.

With the help of modern genetic technology and the resources of the International Rice GeneBank, which contains more than 112,000 different types of rice, evolutionary biologist Kenneth Olsen, PhD, associate professor of biology in Arts & Sciences at Washington University in St. Louis, has been able to look back in time and ask whether the same mutations underlay the emergence of the same traits in both cultivated and weedy rice.

Camelina grower Sustainable Oils — which provided the camelina oil to make the 1,000 gallons of jet fuel needed for the KLM flight — plans to cover more than 20,000 hectares in Montana with the weedy relative of canola, enough to deliver some 9.5 million liters of raw oil.

To determine how recently the swamp hibiscus and more than 50 other weedy plants arrived in the Galápagos, Jacqueline van Leeuwen of the University of Bern, Switzerland, and her colleagues dug into the fossil record.

The mass deployment of scuba rice is the culmination of more than a decade of research for Mackill, who long ago identified a gene in rice's DNA, known as Sub1A, that seemed to strongly influence how a weedy but flood - resistant rice variety in India — rejected because it had a low yield and poor taste — could survive so much longer than normal varieties.

DNA from wheat species that are little more than weedy grasses is bred into wheat using various tricks of the trade.

After this discovery in a weedy creeper, the planet would rotate tens of thousands more times before scientists studying the daily habits of a household insect exposed the mechanics of the biological clock.

Under a small amount of pressure, this works just fine, but give the magnet - secured back - end more than a nudge and it'll separate, threatening to take the weedy plastic hook with it.

Speaking of which, while it's fine overall for video, the speakers are a bit weedy — you don't get a nice stereo set, as on the more expensive iPads and even the cheap Kindle Fire HD 8.

Most of these are second order effects unrelated to plant hormone chemistry; while plants become brittler, less well - nourished and more nitrogen - depleting, less capable of maintaining thermal homeostasis, faster aging and weedier as CO2 plant hormone changes affect them, they generally just shift their mix in the wild and drop their productivity as soil microbes change toward more adverse colonies, but aren't yet wholesale dying out for the most part.

Interestingly, weather and habitat loss has been shown to have a very strong impact on more common species of butterflies, or «weedy» species.