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Volume 30, Issue 2
Displaying 1-7 of 7 articles from this issue
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III. Effect of Moderate Low Temperature at 17°C or 20°C for Breaking the DormancyMasaki YAHIRO, Takeshi SHINJO, Norihiko YASUHIRO1986 Volume 30 Issue 2 Pages 79-81
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESSThe dormancy of winter buds of the Minamisakari variety of mulberry (a type from the warm regions of mainland Japan) was broken by a temperature treatment of 17±1°C for about seven days, but not by a treatment of 20±1°C for 30 days. It was concluded that the bud dormancy of this variety might be brokn under the natural climatic conditions of the Southwestern Islands of Japan, including Amami and Okinawa.View full abstractDownload PDF (374K) -
I. Cultivation in the Rainy SeasonMichio MAKITA, Edson J. IORCZESKI1986 Volume 30 Issue 2 Pages 82-87
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESSExperiments were carried out to evaluate the effect of nine planting dates staggered over the period January 4-March 26 with about 10 day intervals on the yield of 5 leading wheat cultivars adapted to cultivation in the rainy season. In general, along with the delay in the planting date, the duration of the growth period increased and, therefore, grain yield rose from 1.46t/ha to 2.04t/ha, due to the lowering of temperature and shortening of day length in the period of growth. Especially, the effect of these conditions from the heading to the maturity stages of the crop contributed to the increase of grain yield associated with the complete filling of grain, as reflected thousand-kernel-weight and hectoliter weight. However the temperature and day length during cultivation period in the rainy season were too high and too long, respectively to obtain a high grain yield.
Grain yield was also low during the cultivation of wheat in the rainy season due to the low-yielding characteristics in Brazilian cultivars adapted to the rainy season. However these cultivars which were bred in Brazil are well adaptated to unfavorable envionments and are tolerant to aluminium toxicity.View full abstractDownload PDF (681K) -
II. Cultivation in the Dry SeasonMichio MAKITA, Edson J. IORCZESKI1986 Volume 30 Issue 2 Pages 88-93
Published: June 01, 1986
Released on J-STAGE: January 31, 2011
JOURNAL FREE ACCESSExperiments were carried out to evaluate the effect of nine planting dates staggered over the period March 20 - June 4 with about 10 day intervals on the yield of 5 leading wheat cultivars adapted to irrigated cultivation in the dry season. In general, along with the delay in the planting date, the duration of the growth period increased. Therefore, grain yield rose from 1.7 t/ha to 4.8 t/ha. Irrigated cultivation to the dry season is associated with periods during which the temperature is the lowest (20°C) and day length the shortest (11.2 hours) in the year. The optimum planting date was estimated to range from the latter part of April to the latter part of May.
Mexican type cultivars adapted to irrigated cultivation which are high yielding due to their short and strong culm contributed to the high yield obtained under irrigated cultivaiton in the dry season.View full abstractDownload PDF (573K) -
I. Effect of NaCl Concentration and Temperature on Seed Germination and Seedling EstablishmentYasutaka UCHIYAMA1986 Volume 30 Issue 2 Pages 94-99
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESS -
II. Salt Tolerance at the Germination Stage of Seeds Produced under Different Saline EnvironmentsYasutaka UCHIYAMA1986 Volume 30 Issue 2 Pages 100-104
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESS -
Hikaru NIKI1986 Volume 30 Issue 2 Pages 105-112
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESSDownload PDF (946K) -
Takao KASHIWABARA1986 Volume 30 Issue 2 Pages 113-140
Published: June 01, 1986
Released on J-STAGE: March 19, 2010
JOURNAL FREE ACCESSDownload PDF (15408K)
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