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Sterile Spikelets of Rice Plants Induced by Low Temperature in 1988:Difference in heading date among stems and spikelet locations on the panicle
Heading date Main stem Rice plants Spikelet locations on the panicle Sterility Susceptibility to low temperature
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2009/8/6
A large number of sterile spikelets were induced by low-temperature at the booting stage of rice plants during the middle to the end of July in 1988. The authors investigated various aspects of occur...
Regularity in Variation of Leaf Color and Nitrogen Distribution in Half-leaf Blades by Leaf Position on the Stems of Rice Plants:I. Variation of chlorophyll meter values and mechanism of leaf formation
Chlorophyll meter Concordance Cultivar Half-leaf blade Leaf blade width Leaf color
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2009/7/29
We clarified that the degrees of the difference in color between outside and inside half-leaves were unexpectedly large, which ranged from 1.3 to 5.4 values by the Minolta chlorophyll meter SPAD-502 (...
Analysis of the Number of Spikelets per Panicle on the Main Stems, Primary and Secondary Tillers of Different Rice Genotypes Grown under the Conventional and Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density Practices
Cultivation practices Main stems Number of Spikelets Primary tillers Rice cultivars Secondary tillers
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2009/7/29
The number and development of spikelets on a panicle directly affect the grain yield. In this study, we examined the differences among various rice cultivars in the number of spikelets per panicle (NS...
Regularity in Variation of Leaf Color and Nitrogen Distribution in Half-Leaf Blades by Leaf Position on the Stems of Rice Plants:II. Uneven translocation of nitrogen between outside and inside half-leaves
Chlorophyll meter value Distribution Half-leaf blade Leaf blade width Nodal root Translocation
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2009/7/27
We have reported in a previous paper that the outside half-leaf had a smaller volume and deeper leaf color than the inside half-leaf. The half-leaf color was not dependent only on the difference in le...
Anatomical Characteristics of the Formation of Crown Root Primordia in Unelongated Stems of Wheat
Crown root primordia Peripheral cylinder of longitudinal vascular bundles Triticum aestivum L. Unelongated stem Vascular bundle Wheat
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2009/7/24
Anatomical observations were conducted to clarify some characteristics of the crown root primordia (CRP) formation in wheat stems. Unelongated portions of main stems were sampled from the plant at 3.2...
Relation between Crown Root Primordia Formation and Stem Size in Unelongated Stems of Wheat (Triticum aestivum L.)
Crown root primordia Peripheral cylinder of longitudinal vascular bundles Triticum aestivum L. Unelongated stem Vascular bundle Wheat
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2009/7/24
The number and thickness of crown root primordia (CRP) were examined with special reference to the size of the peripheral cylinder of longitudinal vascular bundles (PV), in which CRP are formed. Unelo...
Nitrogen Content of Leaves Affects the Nodal Position of the Last Visible Primary Tiller on Main Stems of Rice Plants Grown at Various Plant Densities
Direct sowing Last visible primary tiller Leaf nitrogen content Nodal position Plant density Rice
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2009/7/24
The nitrogen content of leaves in rice plants at various planting densities in the field and under high and low levels of nitrogen in pots were comparatively examined, and thereby the effect of the ni...
Carbohydrate Metabolism in Leaf Blades and Stems of Rice Cultivar Akitakomachi at the Ripening Stage
Akitakomachi Carbohydrate metabolism Ear clipping treatment Leaf blade clipping treatment Ripening stage Sucrose acumulation Sucrose phosphate synthase
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2009/7/22
Akitakomachi was cultivated in a paddy field, and the lower leaves and about 1/3 of an ear were clipped off before and immediately after heading, respectively. The effect of the treatments on the carb...
Morphological Studies on the Regularity of Shoot Development in Rice Plants:VII. The mechanism to control the start of internodal elongation and the regular distribution of elongated internodes on stems
Anatomy Elongation Internode Mechanism Morphogenesis Oryza sativa L
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2009/7/22
The distribution of elongated internodes on stems in each plant was compared among the main shoots and tillers, and GA3 was applied to the plant to determine the primordial internodes which are sensit...
Effect of the Application of Rice Bran on the Carbohydrate Metabolism in Leaves and Stems of Rice Variety Hitomebore Cultured with the Practice of No Nitrogen Application at Basal Dressing Acommpanied with Sparse Planting
Booting Stage Hitomebore No nitrogen application at basal dressing Non-structural carbohydrate Sucrose content
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2009/7/21
Hitomebore, a rice variety, was cultured in 1996 using standard practice(CON)and the practice of no nitrogen application at basal deressing accompanied with sparse planting(BNo).Raw rice bran at 120gm...
Varietal Difference in the Relationship between the Number of Panicles per Hill and the Number of Spikelets per Panicle on the Main Stems and on Primary and Secondary Tillers of Rice
Main stem Number of panicles Number of spikelets Rice plant Sink size Tiller Varictal difference
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2009/7/16
Varietal differences in the number of panicles per hill and in the relationship between the number of spikelets per hill and the number of spikelets per panicle on each order tiller in the rice plant ...
Relationships between the Contents of Carbohydrates and Cell Wall Materials in the Stems of Rice during Grain Filling
Acid detergent fiber Carbohydrates Cell wall materials Grain filling stage Hitomebore
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2009/7/16
Hitomebore, a popular rice variety in Tohoku, was cultured in 1997 by using standard practice (CON), the practice of nitrogen-free basal dressing with sparse planting (BNo), and BNo with the applicat...
Relationship between the Numbers of Crown Roots and Stems per Hill in Rice Plants
Lower shoot unit roots Non–productive stem Number of roots Number of stems Productive stem
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2009/7/8
Crown roots consist of elongating roots and stunted roots, and are classified into upper shoot unit roots, lower shoot unit roots, and prophyll shoot unit roots according to shoot unit theory. The re...
Visual Ratings and Relationships of Trichomes on Bracts, Leaves, and Stems of Upland Cotton
Trichomes on Bracts Relationships Visual Ratings
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2008/5/14
Reduction of trichome density on various organs of cotton (Gossypium hirsutum L.) plants may enhance the ability to clean seedcotton and lint. Visual ratings of trichomes could facilitate characteriza...