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1. 发明专利

JPS63239202A CULTIVATION OF MAIZE 失效
公开(公告)号：JPS63239202A
公开(公告)日：1988-10-05
申请号：JP7374587
申请日：1987-03-27
申请人： SAKATA SEED CORP
发明人： IKEGAWA NOBUO , AOKI SHIGEYUKI
IPC分类号： A01G7/06 , A01C1/00 , A01N43/22
摘要： PURPOSE:To make root system germinate and enlarge from an early period, to stably enable early-season culture of especially maize and to produce high- quality harvest, by absorbing a specific brassinosteroid in seed of maize and seeding. CONSTITUTION:A brassinosteroid shown by formula I (R is group shown by formula II, formula III, formula IV or formula V) is absorbed in seed of maize and seeded or applied to young seedling thereof and maize having dark color grain, gloss and increased sweetness is cultivated. As a method to absorb the brassinosteroid in seed the compound shown by formula I is diluted with a large amount of water into 0.0001-3ppm concentration and the seed is preferably immersed in the solution for 1-5hr at 15-22 deg.C. The treated seed is taken out from the treating solution, dried or not dried and can be seeded. The brassinosteroid is blended with a carrier and an auxiliary, made into an agent such as dust and can be directly applied as it is. This method can be safely operated without using a large amount of an organic solvent.

2. 发明专利

JPS63307803A PRODUCTION OF BRASSICACEOUS CROP SEED 失效
公开(公告)号：JPS63307803A
公开(公告)日：1988-12-15
申请号：JP14354887
申请日：1987-06-09
申请人： SAKATA SEED CORP
发明人： IKEGAWA NOBUO , AKUTSU TSUTOMU , KANO TOSHIAKI
IPC分类号： A01N43/22
摘要： PURPOSE:To increase production of seeds of brassicaceous crops and stably produce seeds with excellent fullness, by applying brassinolides, such as brassinolide, epibrassinolide, R-isomer, S-isomer thereof or homobrassinolide, to brassicaceous crops. CONSTITUTION:Brassinolides expressed by formula I [R is formula II (brassinolide), formula III (S-isomer of epibrassinolide), formula IV (R-isomer of epibrassinolide) or formula V (homobrassinolide)] are absorbed in seeds of brassicaceous crops (e.g. cabbage, Chinese cabbage, turnip, broccoli, greens to be pickled, mustered plant, rape or Japanese radish) and sowed or sprayed on foliage, buds and flowers, etc., to afford the seeds of the brassicaceous crops in high yield. The period suitable for spraying is preferably the seedling stage of 1-3 true leaves, in the coldest season from December when differentiation of flower buds of primary scaffold branches start to February when differentiation and development of flower buds of lateral branches are carried out, initial flowering stage, fruiting, ripening stage, etc.

3. 发明专利

JPS63243002A FRUITING HORMONE PREPARATION FOR MELON 失效
公开(公告)号：JPS63243002A
公开(公告)日：1988-10-07
申请号：JP7487287
申请日：1987-03-28
申请人： SAKATA SEED CORP
发明人： IKEGAWA NOBUO , NAGAI TERUICHI
IPC分类号： A01N43/22
摘要： PURPOSE:To obtain a fruiting hormone preparation for melons giving high fruiting yield, a large amount of matured seeds, and fruits of good appearance and high quality, by using a prasinosteroid having an action to control plant growth. CONSTITUTION:The subject hormone preparation contains a prasinosteroid of formula I (R is formula II, formula III, formula IV or formula V). The preparation is used by spraying or coating the peduncles or ovaries of melons with an aqueous solution containing 0.005-2ppm of a prasinosteroid of formula I or by applying a dust or wettable dust prepared by combining the steroid with a carriers and other additives and diluting the combination with water. The prasinosteroid is very useful in fruit cultivation or seed cultivation, because the hormone can give fruits of stabilized quality. Especially, it is utilized in cultivation in spring where the fruiting rate is low or in cultivation of melons which is very deformable by action of hormones.

4. 发明专利

JPS63239201A CULTIVATION OF SPINACH 失效
公开(公告)号：JPS63239201A
公开(公告)日：1988-10-05
申请号：JP7374487
申请日：1987-03-27
申请人： SAKATA SEED CORP
发明人： IKEGAWA NOBUO , AKUTSU TSUTOMU
IPC分类号： A01G7/06 , A01C1/00 , A01N43/22
摘要： PURPOSE:To cultivate spinach, especially summer sowing spinach even under high-temperature conditions in high good seedling ratio and in high yield, by absorbing a specific brassinosteroid having plant growth adjusting action on seed of spinach in seed of spinach and seeding the seed. CONSTITUTION:A brassinosteroid shown by formula I (R is group shown by formula II, formula III, formula IV or formula V) is absorbed in seed of spinach and seeded or applied to young seedling thereof and spinach is safely cultivated without using a large amount of organic solvent. The period for the cultivation is properly about June - August as it is generally carried out in summer sowing spinach and as a method to absorb the brassinosteroid in seed the compound shown by formula I is diluted in a large amount of water into 0.005-5ppm concentration and seed is preferably immersed in the solution for 2-8hr at 15-22 deg.C. The treated seed is taken out from the treating solution, dried or not dried and can be seeded. The compound is blended with a carrier and an auxiliary, made into an agent such as dust and directly applied as it is.

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