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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
KOREAN JOURNAL OF CROP SCIENCE
Journal Basic Information
Journal DOI :
The Korean Society of Crop Science
Editor in Chief :
Volume & Issues
Volume 24, Issue 4 - Dec 1979
Volume 24, Issue 3 - Oct 1979
Volume 24, Issue 2 - Jul 1979
Volume 24, Issue 1 - May 1979
Selecting the target year
Effect of Nitrogen and Phosphorus Fertilization on the Growth and Root Respiration of Paddy Rice
Young-Soo Han ; Je-Cheon Chae ; Jong-Hoon Lee ; Yoon-Jin Oh ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 1~11
Increased nitrogen fertilization increased root respiration and top dry weight of rice plant, and increased phosphorus fertilization increased root respiration only with the same amount of nitrogen applied. The effect of phosphorus on root respiration under low growth temperature was not significant and the large application of phosphorus alone decreased root respiration greatly. Root respiration per unit root weight correlated highly with top dry weight and nutrient uptake.
Studies on Root System of the Rice Plants Cultivated in the Reclaimed Land
Won-Il Chung ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 12~18
It has been ascertained by many researchers that soil conditions under which the rice plants were cultivated have some effects upon the root system of the rice plants. But, much is not known about the root systems of the rice plants cultivated in the reclaimed lands. The goal of the present investigation is to study morphogenetical effects of reclaimed land on the development of root system of the rice plant.
Studies on the Variability of Lowland and Upland Rice Grown under Lowland and Upland Conditions
Sang-Jin Choi ; Hyun-Ok Choi ; Jong-Hoon Lee ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 19~25
Lowland and upland rice were grown under the both of lowland and upland conditions. Ecological variations in plant characteristics such as plant height, leaf emergence, length of leaf blade, leaf angle, leaf width, heading date, culm length, panicle length and straw weight were observed. Plant height, leaf emergence and heading were accelerated under the lowland condition for both lowland and upland varieties, while leaf length, leaf angle, leaf breadth, number of leaves were increased in upland condition for both lowland and upland varieties.
New Malting Barley Variety "Doo San # 781"
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 26~34
A new barley cultivar "Doo San #781" has been developed from combination of Seijo #17 and Piroline at Sacheon Experiment Station, Doo San Poongsan Co. This cultivar is early, medium culm, lodging resistant and panicle numbers type. Also, yields of this cultivar were increased at all experiment locations regardless paddy-and up-lands cultivations except Cheju districts, thus indicating the broad adaptibility.ptibility.
Study on the Inheritance of Powdery Mildew Resistance in Common Wheat
Young-Am Chae ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 35~37
To investigate the genetic system in resistance to powdery mildew winter wheat cultivar Diplomat which has stable field resistance was crossed with high yielding susceptible winter type Caribo and Hayman's generation mean analysis technique was employed. Mildewing rate on flag-leaf at both heading-flowering and ripe stages were recorded according to lame's quantitative scale. The result indicated that additive gene effect was more important and significant role in the inheritance of resistance while dominant gene effect was minimum, and digenic interations were absent. Narrow sense heritability of resistance at ripe stage was higher than that of heading-flowering stage.
C-assimilates During Grain Filling and Influence of Defoliation and Emasculation on Grain Weight in Oats
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 38~44
C-sucrose was labeled on detached panicles and
on flag leaves or panicles of intact plants to study grain sink activity in spring oats cultivar Pennfield. Defoliation and emasculation experiment was conducted to study source-sink relationship during grain filling. Specific activity of groat rose up to 15 days after anthesis and declined rapidly to 18 days. Daily gain of groat wt. matched closely with specific activity of. groat during grain filling. Primary groats were higher in specific activity of groat than secondary groats.
exposure on panicle was three times higher in specific activity of groat than
exposure on flag leaf. In the defoliation and emasculation experiment, groat wt. of Pennfield oats decreased as ratio of source/sink decreased. Half number of spikelets with half leaf area was no different in groat wt. compared to control, but normal number of spikelets with zero leaf area was decreased 16% in groat wt., indicating a significant compensation by green area on panicle.
Studies on the Cultural Practice System Establishment of Sweet Corn in Southern Plain Area
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 45~52
This study was conducted to determine the proper time of corn marketing by cultivating time movement and cultural practice system establish. The rate of development of corn from planting to anther is a function of temperature rather than of photosynthesis. The major yield components of sweet corn for yield increase are more ear heavier grain weight, greater of kernels and heavier 100 grain weight. Early sowing has show yield decrease because yield capacity decreased with the shorting of vegetative growth and it was relatively susceptible to maize black streaked dwarf virus.
A Survey on the Vegetation Change with Advancing Years of the Improved Pasture in Jeju Island
Nam-Ki Cho ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 53~61
Mixed seeds of Dactylis glomerata, Festuca arundinacea, Trifolium repens, Lolium multiflorum on the improved pasture were sown to investigate the vegetational change during the years of 1971-1978. The dominant species were Dactylis glomerata and Trifolium repens from the first year to the third year, Imperata cylindrica and Trifolium repens in the forth year, Imperata cylindria and Zoysia japonica from the fifth year to the eighth year in the pasture.
Studies on the Tissue Culture of Korean Ginseng(II) -Effect of 2,4-D and Benzyladenine on the Induction and Growth of Ginseng Callus-
Jae-Seong Jo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 62~66
These studies were designed to define the effects of Benzyladenine and 2, 4-D on the induction and growth of callus tissue from embryos and plant segments of Korean ginseng. 0.5PPM was the minimum concentration of 2, 4-D for the induction of callus tissue from embryos and plant segments of ginseng. Best callus induction occurred at a 2, 4-D concentration of 5 mg/liter but growth of this callus was best at a 2, 4-D concentration of about 1.0 to 2.0 mg/liter and benzyladenine was ineffective as callus inducer. When the embryos were grown on the media containing 0.5 mg/liter of 2, 4-D, 5 to 6 axillary buds were formed at the basal part of epicotyle.
Varietal Differences in the. Resistance to Aphidiae (Aphis, gossiypii GLOVER) Injury in Rape
Byung-Sun Kwon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 67~70
The Aphidiae injury was 12.98％ on average with a range from 2.0％ to 33.3％. Seventeen percent of the 320 tested varieties were injured as much as 4-6％ and only 0.4％ of the tested varieties were damaged for more than 20％.
Studies on Flowering Habits and Kernel Yields of Peanuts (Arachis hypogaea L.)
Byeong-Han Choi ; ; Jung-Il Lee ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 71~82
Transparent vinyl-mulching cultivation plots heavy-fertilized (6-14-20 kg
in growing peanuts produced 315-344Kg
of quality kernels through improvement of the low temperature conditions of underground environment during the early growing stage and kernel-filling stage. The yields of which were 82-99 percent higher than that of conventional cultivation plot. The vinyl-mulching cultivation techniques accelerated emergence, young seedling growth, flowering, pod bearing and kernel filling of peanuts in Korea.
Studies on the Physiological Chemistry of the Spring Habits in Naked Barley-with Special Reference to the Differentiation and Development of Young Spike
Sun-Young Choi ;
KOREAN JOURNAL OF CROP SCIENCE, volume 24, issue 4, 1979, Pages 83~114
These studies were, aimed at clarifying the relationship between the spring(winter) habits and the metabolism during the differentiation and development of young spike in naked barley. The pattern of change of nucleic phosphorus was paralleled to that of insoluble nitrogen in the normal heading type, showing their increase in the young spike and their decrease in the leaf at the stage of double ridges differentiation, respectively. However, in the rosetted type nucleic phosphorus remained at a constantly low level in both the young spike and the leaf, and insoluble nitrogen showed a considerably lower content in the young spike but a remarkable higher content in the leaf than that of the normal type. In addition to nucleic phosphorus and insoluble nitrogen, there were significant differences between the normal and the rosetted type in the content levels of PCA-soluble phosphorus, nonreducing sugar, crude starch and so on. Particularly, these differences were found even in the stage of bract differentiation, the vegetative phase, as well as in the reproductive phase. It appeared that nucleic phosphorus and insoluble nitrogen were closely concerned with the differentiation of double ridges, regardless of the varieties which are different in their spring habits.