All issues
Volume 79 (2010)
- Issue 4 Pages 407-
- Issue 3 Pages 251-
- Issue 2 Pages 113-
- Issue 1 Pages 1-
Volume 79, Issue 1
Displaying 1-12 of 12 articles from this issue
- |<
- <
- 1
- >
- >|
Regular Paper
Agronomy
-
Takeo Sakaigaichi, Yoshifumi Terajima, Takayoshi Terauchi, Akira Sugim ...2010 Volume 79 Issue 1 Pages 1-9
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSThe effect of dense planting in planting and ratooning cane of forage sugarcane variety, KRFo93-1, on the growth and yield was studied at farmers’ fields in Nishinoomote, Kagoshima from 2007 to 2008. The planting density examined was 63.6 ×103 (control), 95.4×103 (1.5 times, dense planting) and 127.2×103 (2 times, dense planting) buds/ha. The number of stems increased with increasing planting density. The number of stems was the maximum at 63 days after planting (DAP) in 2007 and at 75 DAP in 2008 and it decreased thereafter. It was higher in 2007 than in 2008, which might be affected by the difference in the amount of solar radiation. Stem length was significantly longer in dense planting until 88 DAP in 2007 and until 102 DAP in 2008. The longer stem length may be due to the smaller tiller number per stool in dense planting. The vegetation cover ratio was significantly higher in dense planting. The average fresh-and dry-matter yields in 2007 and 2008 were higher in dense planting. The effect of dense planting was very large until 88 DAP in 2007 and until 102 DAP in 2008. Therefore, the yield-increasing effect of dense planting would be larger if the timing of harvest was earlier than in this study. Dense planting had a positive effect on the growth and yield of ratooning cane in dense planting.View full abstractDownload PDF (1087K) -
Tetsuya Kobayashi, Akira Miyazaki, Atsushi Matsuzawa, Yoshikazu Kuroki ...2010 Volume 79 Issue 1 Pages 10-15
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSThe process of curcumin accumulation into rhizomes of turmeric and yellow zedoary was examined. The curcumin concentration of turmeric was higher in seed rhizome than in mother rhizome and daughter rhizome, and it was not detected in shoot and roots. Dry weight of seed rhizome in both turmeric and yellow zedoary decreased after planting from May to July, while dry weight of primary rhizome increased rapidly from September to November. This vigorous rhizome growth was observed especially from September to October in yellow zedoary, and from September to October (in 2006) and from October to November (in 2007) in turmeric. The curcumin concentration of seed rhizome in turmeric markedly increased with decrease in dry weight and resulted in higher concentration than that of primary rhizome. The curcumin concentration of primary rhizome increased from September to October and little increased or slightly decreased from October to November. On the other hand, in yellow zedoary the curcumin concentration of seed rhizome slowly increased from September to May, while that of primary rhizome decreased significantly from September to October. Such decrease in curcumin concentration resulted in a low curcumin content of yellow zedoary. The curcumin contents increased with the increase in the rhizome yield, showing the importance of the rhizome yields for the improvement of the curcumin contents. The curcumin concentration was stable during the storage period in both turmeric and yellow zedoary.View full abstractDownload PDF (1530K) -
Hisashi Tanno2010 Volume 79 Issue 1 Pages 16-25
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSIn 1991-2006, the protein content (PC) and amylose content (AC) of nonglutinous rice, variety Kirara 397, were examined in 15 areas, and the growth characteristics were examined in each area to clarify the factors causing yearly and regional differences. The range of the yearly (regional) variation on the average of all areas (years) was July 29th-Aug. 16 (July 29th-Aug. 9) in heading date, 5.0-61.0 (8.9-21.5)% in sterility, 21.1-23.5 (22.0-23.3)g in 1000-kernel-weight, 205-576 (398-593)kg/10a in grain yield, 7.2-8.6 (7.2-8.2)% in PC, and 18.3-22.2 (19.8-21.2)% in AC. The coefficient of yearly variation in each growth characteristics was 1.4-3.2 times, larger than that of regional variation. Among years, the earlier the heading date, the higher the temperature during the sensitive stage to stelile-type cool injury; the lower the sterility, the heavier the 1000-kernel-weight; and, the higher the grain yield, the lower was the PC. At 843-849°C of the cumulative daily mean temperature during 40 days after heading (CTAH), the PC were lowest. The regional variation of PC did not correlate with these growth characteristics, but the lower the ratio of peat soil in the paddy field and the lower the wind speed during tillering, the lower was the PC. On the other hand among both years and regions the higher the CTAH, especially among years the earlier the heading date, the lower was the AC. From those results, some guides to cultivation method of good-eating quality rice were clarified.View full abstractDownload PDF (1620K)
Quality and Processing
-
Bread Making Characteristics of the Whole Grain Flour made from Wheat Glu-1Dx5 Gene Transferred RiceYoshiharu Wada, Ayako Ujiie, Nono Carsono, Tomohiko Yoshida2010 Volume 79 Issue 1 Pages 26-28
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSWe examined the bread-making quality of whole grain flour of rice cultivar Fatmawati with wheat glutenin gene Glu-1Dx5 transferred. Bread made from wheat glutenin gene transferred rice flour was equivalent to that from the flour of wheat cultivar Norin 61 and from Koshihikari rice flour mixed with gluten. No obvious difference was seen by griadin addition to the gene transferred rice flour. These results suggested that the bread-making quality of rice flour could be improved by transfer of the wheat glutenin gene Glu-1Dx5.View full abstractDownload PDF (713K)
Genetic Resources and Evaluation
-
Toshinori Sotome, Naoyuki Kawada, Tsuneo Kato, Takahiro Sekiwa, Hisash ...2010 Volume 79 Issue 1 Pages 29-36
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSBefore spreading the new cultivar “Sukai Golden” which is resistant to Barley yellow mosaic virus(BaYMV) strains I, II and III, occurrence of BaYMV strains in Tochigi prefecture was investigated. Strain I and III were being spread in the northern and southern areas of Tochigi prefecture, respectively. Showing that the resistance of currently cultivated cultivars was inadequate to prevent BaYMV. In addition, Ootawara strain, pathogenicity different from the existing strains, and damage BaYMV resistance gene rym3 was found in Ootawara-city. We examined their pathogenicity to different to barley cultivars, analyzed their homology using nucleotide and amino acid sequences, and performed molecular phylogenetic analyses. The results showed that Ootawara and Yamaguchi strains were distantly related to the three strains, and classified as strain IV and V, respectively. Strains IV and V were distinguishable by using test cultivar “Hayakiso 2” or using “Urakoukawamugi 3” and “Sangatsu”. “Sukai Golden” and “Mokusekko 3” show resistance to all strains, I to V, meaning that these are useful for breeding virus-resistant cultivars, and accumulating resistance genes, rym1, rym3 and rym5, are important for future malting barley breeding programs.View full abstractDownload PDF (1780K) -
Shun-Ichi Kobayashi, Toshinori Sotome, Mika Oozeki2010 Volume 79 Issue 1 Pages 37-43
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSNumbers of generations and ancestors in pedigree of each breeding line and cultivar of two-rowed malting barley in public and private programs in Japan were analyzed. Compared with Japanese rice pedigree, there were fewer ancestors in malting barley. The number of ancestors increased when a source of BaYMV resistance was included in the pedigree. Cluster analysis based on the coefficients of parentage could distinguish the breeding programs by old breeding lines and cultivars, but could not distinguish them by the recent materials. To develop cultivars for novel breeding objectives, it is necessary to intoduce exotic genetic resources and maintain the genetic diversity by monitoring the pedigree with the analyse of coefficients of parentage.View full abstractDownload PDF (1079K) -
Jiabin Bian, Akihiro Moriya, Masahiro Morokuma, Masanori Toyota, Akihi ...2010 Volume 79 Issue 1 Pages 44-52
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSThe effects of conventional and organic culture methods on root system characteristics of paddy rice, and its difference between Chinese (Tsumomi 308 and Tsusei 2) and Japanese (Koshihikari and Hinohikari) rice cultivars were studied. Chemical fertilizer and pesticide were applied to the conventional culture plot (K), but only rice bran to the organic culture plot (U). Although the primary root number and total root masses (i. e., total root length, total root dry weight and total root surface area) were larger in K, the total root mass per root number were larger in U in all cultivars. Although specific root weight and root diameter were smaller in U, specific gravity of root was not differed between the two plots. Root depth index was small in U. With some exceptions, bleeding rate per hill was smaller in U and that per root number was higher in U. The difference in bleeding rate per root surface area between the two plots was small. In all cultivars, lower specific root weight in U was accompanied by larger mean root surface area and higher bleeding rate per root number. Therefore, thinner and longer branch roots in U resulted in extension of the surface area per root, and increase in water absorbing ability. The high bleeding rate per root number in U, however, did not increase the bleeding rate per hill, because of the restriction of root number per hill.View full abstractDownload PDF (1153K)
Crop Physiolory and Cell Biology
-
Varietal Difference in the Cost of Dark Respiration for Panicle Growth and Carbohydrate MobilizationYoshihiko Hirai, Kentaro Numa, Kiyohiro Nakai, Makoto Tsuda2010 Volume 79 Issue 1 Pages 53-61
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSThe reduction of carbohydrate consumption by the dark respiration at the ripening stage may increase the yield of rice. To clarify the influence of the varietal difference in the ratio of the dry-matter decrease in stem and leaf sheath to the dry-matter increase in panicle (ΔS/ΔE), which is used as an index of the remobilization of carbohydrate, on the dark respiration in shoot, and to clarify the varietal difference in the cost of panicle growth, we examined the dark respiration in the shoot and panicle using four and two rice varieties with different ΔS/ΔE in 2000 and 2003, respectively. The ΔS/ΔE in Nanjing 11 at ripening periods was higher than that of Tainung 67 in both years. The relationship between the dark respiration in the shoot and mobilization of carbohydrate was regressed to a line in both years. On the other hand, the rate of dark respiration in panicle increased with panicle growth in all varieties, but the cost of the dark respiration for panicle growth was lower in Tainung 67 than in Nanjing 11. These results showed that the varietal difference in the remobilization of reserved carbohydrate did not affect the cost of dark respiration for remobilization in shoot, and that the varietal difference in the cost of panicle growth was large.View full abstractDownload PDF (1388K)
Modelling, Information and Environment
-
Toyotaka Minoda2010 Volume 79 Issue 1 Pages 62-68
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSThe effects of air temperature and precipitation on the yield of wheat variety ‘Norin 61’ in the experimental upland field in Saitama Prefecture were analyzed using data collected for the same cultivation method during a 45-year period (1951-1996). A negative correlation was observed between yield and mean air temperature from seeding to maturity. There was a significant negative correlation between yield and mean air temperature from seeding to heading, and also between yield and precipitation from heading to maturity. However, there was no correlation between yield and mean air temperature from heading to maturity. The yield of wheat variety ‘Norin 61’ in the upland field in Saitama Prefecture tends to decrease with increasing mean air temperature before heading and increasing precipitation after heading.View full abstractDownload PDF (1126K)
Research and Technical Note
-
Kiwamu Fujita, Shinji Tada, Tetsuhiro Miki, Kazutoshi Kawata, Terumi M ...2010 Volume 79 Issue 1 Pages 69-73
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSA new brewers’ rice variety “Sanukiyoimai” was bred by cooperation of industry, academy and government in Kagawa prefecture (brewing cooperative, agricultural cooperative, faculty of agriculture in Kagawa university and agricultural experimental station in Kagawa prefecture), and registered in 2009. “Sanukiyoimai” produced by a cross between “Ooseto” and “Yamadanishiki” had a higher number of panicles, higher yield, larger 1000-grain weight and lower protein content in grain than those in “Ooseto”. Also “Sanukiyoimai” had the property of rice for sake brewing intermediate between “Ooseto” and “Yamadanishiki”, and was estimated highly in respect of good smell and mild taste compared with “Ooseto” and “Yamadanishiki” in the sensory test of sake. Therefore, “Sanukiyoimai” could be a promising variety of rice for sake brewed locally in Kagawa prefecture.View full abstractDownload PDF (2214K)
Information
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]2010 Volume 79 Issue 1 Pages 74-75
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSDownload PDF (621K)
Mini Review
-
Tomoyuki Katsube-Tanaka2010 Volume 79 Issue 1 Pages 76-80
Published: 2010
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESS
- |<
- <
- 1
- >
- >|