From the heading period to the milk maturation of wheat, the percentage of red M. avenae grew with the change of the field conditions (increasing from 17.55% and 14.70% of the first generation to 29.80% and 42.2% of the second generation respectively).
The photosynthetic rate of the selected high - photosynthesis plant was about 90% that of maize (50.5μmol m-2 s-1) grown under similar field conditions.
Under the field conditions, however, it reached to the maximum (7.03 log cfu/g root) 30 days after seed planted, afterward declined to the minimum (5.24 log cfu/g root) 90 days later, then began to go up to 7.89 log cfu/g root 20 days after plant harvested.
When the temperature increased by 10"C, the rate of nitrogen release from rice controlled fertilizer was increased by 1.8 ?2.0 times. In field condition on taking the days after fertilizer application and cumulative soil temperature as the variable, CNR can be described by the formulas CNR=a+bD+cD2 and CNR=a+b (CST)+c (CST) 2 , respectively.
The effects of enhanced UVB radiation (3.18 kJ·m-2·d-1, approximately 21.6% ozone depletion in Xi' an, Alt.550m, 34°N) on morphology, physiology and allometry of Amaranthus retroflexus were studied under field condition.
Under field condition, the maximum sulphur percentage of above-ground parts of winter wheat was at booting, which is 0. 406% with fertilizing sulphur treatment and 0. 364 % with no-fertilizing sulphur treatment (CK).
and it had the tendency to increase the content of chlorophyll in the leaves and the rate of photosynthesis. Under the field condition, titanium citrate could increase soybean yield 3. 9 %～ 8. 6% by seed dressing and 4. 6 % ～16.5 % by foliage spraying.
After the seeds were soaked in MOC drought resistant chemicals, the yield was increased by 5%￣10% under the field condition and the yield reduction was alleviated 6%￣11% under the pot condition.
In the subsequent field evaluation, 93-11(Bt/Xa21)and its hybrid show high resistance to BB and stem borer. The agronomic performance of improved 93-11(Bt), 93-11(Xa21)and 93-11(Bt/Xa21)was very similar to original 93-11 under normal condition.
Three different ratios of hydrothermal-treatment garden wastes and soil (1∶3, 1∶5, 1∶10, wet weight) were incubated for 63 days in soil to determine hydrothermal-treatment products substance changes and maturity.
The results of an analysis of thermo-gravitational convection in Czochralski single-crystal growth from a melt under periodic temperature field conditions are presented.
The strong crystal field condition (D[Figure not available: see fulltext.]hv) with the presence of axial and rhombic components was fulfilled for fixed complexes.
A new RESURF (REduce SURface Field) condition of the SOI device considering the interface charges and buried oxide is derived to maximize breakdown voltage.
In this research, the hydraulic conductivity changes of biomass-soil mixtures by the adverse conditions were studied to evaluate the applicability to the field condition as an alternative barrier material.
To study the conditions required for the development in vernalization stage of peas and broad beans,a series of field experiments were carried out and the results are summarized as follows: Peas and broad beans were able to complete their vernalization stage of de- velopment under 0°—20° C.or even higher.Within the above mentioned temperature range,10°C.was more suitable than 0℃.;and apparently temperatures higher than 10℃.were even more suitable as indicated by the more rapid development under higher tempe...
The severity of red-leaf disease of millet, as measured by the height as well as the yielding capacity, is directly correlated to the stage of development of the plants at which infestation takes place. As a rule, plants infested at seedling stage are much more damaged than those infested at the later stages of development. Date of sowing effects the percentages of diseased plants. In general, earlier sowing produces more diseased plants than later sowings. Nevertheless, it is largely determined by the prev...
Nearly one-third of the life history of winter wheat is spent in the winter. Therefore, the condition under which the plants pass over their “over-wintering” stage has a great deal to do with the yield next year. Important as the “over-wintering” stage is, little is known about the physiology of the plant during that period.The present paper summarizes our four-year work on the physiology of wheat root during the winter season. It was found that during the winter season, while the above-ground part of the p...
田间条件
field conditions
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