搜索结果: 1-15 共查到“农学 Root system development”相关记录16条 . 查询时间(0.163 秒)
Root system development in naturally regenerated Douglas-fir saplings as influenced by canopy closure and crowding
natural regeneration competition shading physical tree stability
2015/9/15
Documented information on the growth dynamics and related silvicultural manipulation of naturally
regenerat ed Douglas-fir beneath a canopy shelter is scarce. We hypothesized that long regeneration ...
Root system development in Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) on fertile sites
Douglas fir root system fertile sites
2015/4/14
The paper analyses the root system development in the artificially established stands of Douglas fir aged 10, 20, 30, 60 and 80 years on aerated soils (Cambisols) without skeleton. On these sites, the...
Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts.
sycamore maple root system humus
2015/3/5
The paper presents results from a study of sycamore maple development, health condition and growth in forest altitudinal vegetation zones (FAVZ) 6 and 7 occurring in pollution damage zones A and B in ...
Genotypic Variation in Responses of Cassava (Manihot esculenta Crantz) to Drought and Rewatering: Root System Development
Cassava Drought Drought recovery Lateral roots Plasticity Principal component analysis
2010/3/4
Soil moisture condition is a major factor that affects root system development and thus, crop production. This study aimed to evaluate genotypic variations of cassava in root system structures and the...
Heterosis for Root System Development in Japonica/Indica F1 Rice Hybrid
Heterosis Japonica/indica F1 hybrid Lateral root Nodal root Rice Specific root length Total root length
2009/8/4
Vigorous growth of F1 hybrid of rice (Oryza sativa L.) may be partially attributed to the development and function of the root system, but only a few studies have been conducted in this aspect. This s...
Root System Development of Japonica-Indica Hybrid Rice Cultivars:1. Number and elongation direction of primary roots
Elongation direction Japonica-Indica hybrid rice cultivars Primary root Rice Root Shoot unit
2009/7/30
To characterize the root system of the Japonica-Indica hybrid rice cultivars (Milyang 23, Suweon 258), we compared the number and elongation direction of primary roots both per stem and shoot unit bas...
Differences in Dry Matter Production and Root System Development between Soybean Cultivars under Deficient Soil Moisture Conditions
Dry matter production Photosynthesis Root system Senescence Soil moisture Soybean cultivar
2009/7/29
In the previous paper, it was clarified that the decrease in dry matter and grain productions under deficient soil moisture conditions differed between cultivars classified into the same ecotype, and ...
Crop Production in Successive Wheat-Soybean Rotation with No-Tillage Practice in Relation to the Root System Development
Glycine max (L.) Merr. No-tillage Root length density Root distribution Soybean Triticum aestivum L. Wheat
2009/7/29
To elucidate the effect of no-tillage practice on the root system development and productivity in a wheat-soybean rotation system in Japan, we continuously cultivated these crops under tilled and non-...
Timecourse Changes in Two Different Topological Indices with Seminal Root System Development of Rice
Branching pattern Herringbone type Oryza sativa L Rice Root system Topological index Topology
2009/7/27
For the topological analysis of plant root systems, two sets of topological indices have been proposed; the ratios of measured altitude (a) and total external pathlength (Pe) to the expected value of ...
Effect of Drought During the Establishment Period on the Root System Development of Cassava
Adventitious root Cassava Drought Lateral root Manihot esculenta Root development
2009/7/24
The effect of different time and duration of progressive drought on cassava, during the establishment stage, i.e., from planting to about three months after planting, was studied with special attenti...
Plant Root System Development under Water Stress
Plant Root System Development Water Stress
2009/7/24
Plant Root System Development under Water Stress.
Varietal Differences in Stem Diameter and Rooting Number of Phytomers in Conjunction with Root System Development of Field-Grown Rice (Oryza sativa L.)
Deep root Oryza sativa Phytomer Plant architecture Root diameter Upland rice
2009/7/23
Varietal Differences in Stem Diameter and Rooting Number of Phytomers in Conjunction with Root System Development of Field-Grown Rice (Oryza sativa L.).
Effects of Subsoiling to the Non-tilled Field of Wheat-Soybean Rotation on the Root System Development,Water Uptake,and Yield
Deuterium Glycine max (L.) Merr. Heavy water No-tillage Stable isotope analysis Subsoiling Triticum aestivum L. Water source
2009/7/21
We introduced subsoiling to a field of wheat-soybean rotation where no-tillage practice had been conducted for five years and whose yield tended to decrease or stagnate. By subsoiling a half of each p...
Bleeding Rate of Field-Grown Maize with Reference to Root System Development
Bleeding rate Diurnal change Maize Nodal root Root Root system
2009/7/15
Bleeding rate could be an effective index for the physiological activity of a whole root system in field-grown crops, because it is based on active water absorption caused by root pressure. We examine...
Root System Development of Japonica-Indica Hybrid Cultivars 2. Branching habit(Crop Morphology)
Japonica-indica hybrid Lateral root Oryza sativa L Rice
2009/7/10
Root system development of japonica-indica hybrid rice cultivars (J-IH : Milyang 23, Suwon 258) was compared with that of japonica-type cultivars (JT: Nipponbare, Koshihikari) with reference to branch...