نتایج جستجو برای: frosts
تعداد نتایج: 251 فیلتر نتایج به سال:
The environmental conditions of the Arctic are vulnerable to effects climate change. We focus on territory Yamalo-Nenets Autonomous Okrug (YaNAO). objective this study is project mid-21st century climate-driven changes in state and natural environment YaNAO. For purpose, CMIP6 data models with change scenario SSP5-8.5 were used. Climate directly affects statistics extreme events climatically dr...
The Sechium P. Br. genus composed of 11 species, which originated from the mountainous regions Mesoamerica, have been domesticated and diversified. These species are clustered in two large groups: Mexican clade Central American clade. Morphological molecular studies shown that formed through interspecific hybridizations genetic flow, with exception S. mexicanum, is strongly linked to Sicyos. ob...
Agricultural sector is most dependent on climate, and climate is the main determinant of time, location, production resources, and productivity of agricultural activities. The first event of zero-degree temperature in fall and its last event in spring is important for agriculture. This information is used to determine the species suitable for planting in each area. The present study seeks to id...
We present the first study of the global impacts of a regional nuclear war with an Earth system model including atmospheric chemistry, ocean dynamics, and interactive sea ice and land components. A limited, regional nuclear war between India and Pakistan in which each side detonates 50 15 kt weapons could produce about 5 Tg of black carbon (BC). This would self-loft to the stratosphere, where i...
The future bloom and risk of blossom frosts for Malus domestica were projected using regional climate realizations and phenological ( = impact) models. As climate impact projections are susceptible to uncertainties of climate and impact models and model concatenation, the significant horizon of the climate impact signal was analyzed by applying 7 impact models, including two new developments, o...
1MS. intended for publication and books, etc., intonded for miew should be snt to the Editor of &Sxzwc; Garrisn-onkHudson, N. Y. ON SOME RESEMBLANCES OF CROWNGALL TO HUMAN CANCER 1 THE disease on which I shall speak today is known in this country as crown-gall, because it has been observed most frequently on the crowns of trees and shrubs, but it is not peculiar to this situation. It occurs als...
In temperate climates, most plants flower during the warmer season of the year to avoid negative effects of low temperatures on reproduction. Nevertheless, few species bloom in midwinter and early spring despite severe and frequent frosts at that time. This raises the question of adaption of sensible progamic processes such as pollen germination and pollen tube growth to low temperatures. The p...
Explosive extrusion of cold material from the interior of icy bodies, or cryovolcanism, has been observed on Enceladus and, perhaps, Europa, Triton, and Ceres. It may explain the observed evidence for a young surface on Charon (Pluto’s surface is masked by frosts). Here, we evaluate prerequisites for cryovolcanism on dwarf planet-class Kuiper belt objects (KBOs). We first review the likely spat...
Based on research to date, we can state some expectations about terrestrial ecosystem response as several elements of global climate change develop in coming decades. Higher plant species will vary considerably in their response to elevated UV-B radiation, but the most common general effects are reductions in height of plants, decreased shoot mass if ozone reduction is severe, increased quantit...
Brassica napus is a leading oilseed crop throughout many parts of the world. It is well adapted to long day photoperiods, however, it does not adapt well to short day subtropical regions. Short duration B. napus plants were resynthesized through ovary culture from interspecific crosses in which B. rapa cultivars were reciprocally crossed with B. oleracea. From five different combinations, 17 hy...
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