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福岡県農林業総合試験場研究報告 ５（2019）Ỉ✄ရ✀ࠕᐇࡾࡘࡃࡋࠖࡢ཰㔞࣭ရ㉁ࡀᏳᐃࡍࡿ⛣᳜᫬ᮇ࡜㐺ṇ⢄ᩘᒾῲဴஓ㸨࣭బ⸨኱࿴  ࣭኱㔝♩ᡂ࣭▼ሯ᫂Ꮚ࣭Ⲩᮌ㞞Ⓩᮏ◊✲࡛ࡣ㸪Ỉ✄᪂ရ✀ࠕᐇࡾࡘࡃࡋࠖࡢ㧗ရ㉁࣭Ᏻᐃ⏕⏘ᢏ⾡ࢆ☜❧ࡍࡿࡓࡵ㸪཰㔞࣭ရ㉁ࡀᏳᐃࡍࡿ⛣᳜᫬ᮇ࡜㐺ṇ⢄ᩘࢆ᳨ウࡋࡓࠋ ᭶ 㹼 ᪥⛣᳜ࡣ㸪 ᭶  ᪥⛣᳜࡟ẚ࡭࡚㸪Ⓩ⇍Ṍྜࡀ㧗ࡃ㸪༓⢏㔜ࡀ㔜ࡃ㸪ከ཰࡜࡞ࡗࡓࠋ⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡣ㧗࠿ࡗࡓࡀ㸪㣗࿡࡟ᕪࡣࡳࡽࢀ࡞࠿ࡗࡓࠋ᪋⫧ἲ࡛ࡣ  ᅇ✑⫧᪋⏝ࡣ  ᅇ✑⫧᪋⏝࡜ẚ㍑ࡋ࡚㸪༓⢏㔜ࡀ㔜࠸ഴྥ࡛㸪཰㔞ࡀከ࠿ࡗࡓࠋ⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡀࡸࡸ㧗࠿ࡗࡓࡀ㸪㣗࿡ࡣ ᅇ✑⫧࡜኱ࡁ࡞ᕪࡣࡳࡽࢀ࡞
࠿ࡗࡓࠋ⢄ᩘ࡜཰㔞࣭ရ㉁࡜ࡢ㛵ಀࢆ᳨ウࡍࡿ࡜㸪཰㔞ࡣ㹫㸰ᙜࡓࡾ⢄ᩘࡀቑຍࡍࡿ࡜ከࡃ࡞ࡿࡀ㸪᳨ᰝ➼⣭ࡣ⢄ᩘ㐣ከ࡟࡞ࡿ࡜ຎࡿࡓࡵ㸪 ➼ࢆᚓࡽࢀࡿ᭱኱⢄ᩘࡢ  ⢏㹫㸰ࡀ཰㔞࣭ရ㉁࠿ࡽࡳࡓ㐺ṇ⢄ᩘ࡛࠶ࡿ࡜ุ᩿ࡉࢀࡓࠋ
>࣮࣮࢟࣡ࢻ㸸⛣᳜᫬ᮇ㸪Ỉ✄㸪཰㔞㸪ရ㉁㸪ᐇࡾࡘࡃࡋ㸪⢄ᩘ@ The Optimum Transplanting Time and Number of Spikelets on Yield and Grain Quality of the Rice Cultivar “Minoritsukushi”.
IWABUCHI Tetsuya, Hirokazu SATO, Yukinori ONO, Akiko ISHITSUKA and Masato ARAKI (Fukuoka Agriculture and Forestry ResearchCenter, Chikushino, Fukuoka 818-8549, Japan) Bull. Fukuoka Agric. For. Res. Cent. 5:102-106 (2019)
We investigated the effects of transplanting time, nitrogen application, and spikelet density on the yield and grain quality of the ricecultivar “Minoritsukushi” to determine the optimum cultivation conditions. We found that bringing the transplanting date forward fromJune 30 to June 17–19 increased the percentage of ripened grains, thousand-kernel weight, yield per unit, and protein content while
retaining the eating quality. In addition, a second top-dressing at the panicle formation stage tended to increase the thousand-kernel
weight and yield per unit and also slightly increased the protein content but had no effect on the eating quality. An increase in spikelet
density increased the yield per unit but this was associated with a deterioration in the inspection grade at high densities, with < 30,000
spikelets/m2 being required to pass the first inspection. Thus, the optimum spikelet density for “Minoritsukushi” was estimated to be
30,000 spikelets/m2 based on the yield and quality.
[Key words: grain quality, Minoritsukushi, number of spikelets, rice, transplanting time, yield]
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ࡣቑຍࡋ࡚࠾ࡾ㸦⡿✐Ᏻᐃ౪⤥☜ಖᨭ᥼ᶵᵓ㸧㸪ᑗ᮶ⓗ࡟ࡶ㸪Ⰻ㣗࿡࡛㸪ࡼࡾప౯᱁࡞୰࣭እ㣗⏝⡿ࡢࢽ࣮ࢬࡣ㧗ࡲࡿࡇ࡜ࡀண᝿ࡉࢀࡿࠋࡇࡢࡼ࠺࡟㸪Ⰻ㣗࿡࡛ప౯᱁࡞⡿ࡀồࡵࡽࢀࡿ୰㸪⏕⏘⪅࡜ࡋ࡚ࡣⰋ㣗࿡⡿ࡢ཰㔞ࢆࡉࡽ࡟ྥୖࡉࡏࡿࡇ࡜ࡀ㔜せ࡜࡞ࡾ㸪୰࣭እ㣗⏝⡿ࡢⰋ㣗࿡ရ✀࡟㐺ࡋࡓ㧗ရ㉁Ᏻᐃከ཰᱂ᇵᢏ⾡ࡢ☜❧ࢆᮃࢇ࡛࠸ࡿࠋᮏ┴࡛⫱ᡂࡉࢀࡓࠕᐇࡾࡘࡃࡋࠖࡣ㸪ከ཰࡛⅕㣤⡿ࡢ㣗࿡ࡀࠕࢥࢩࣄ࢝ࣜࠖࡼࡾඃࢀ㸪୰࣭እ㣗⏝⡿࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿࠋࡲࡓ㸪ᮏရ✀ࡣ┴ෆ࡟࠾ࡅࡿ⇍ᮇࡣ୰⏕ࡢᬌ࡛࠶ࡾ㸪㧗 ⪏ᛶ࡟ඃࢀ㸦࿴⏣ࡽ㸧㸪㏆ᖺ㸪㧗 Ⓩ⇍࡟ࡼࡿ⋞⡿ࡢရ㉁పୗࡀ㢧ⴭ࡞ࠕࣄࣀࣄ࢝ࣜࠖ㸦ⱝᯇࡽ㸧࡟᭰ࢃࡿရ✀࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛㸪ᮏሗ࡛ࡣ㸪ࠕᐇࡾࡘࡃࡋࠖࡢከ཰࣭Ⰻ㣗࿡࡜࠸࠺ရ✀≉ᛶࢆά࠿ࡍࡓࡵ㸪⛣᳜᫬ᮇࢆ᳨ウࡋࡓࠋࡉࡽ࡟㸪Ᏻᐃࡋ࡚㧗࠸཰㔞࣭ရ㉁ࢆ⥔ᣢࡍࡿࡓࡵ࡟ࡣ㸪ရ✀ࡈ࡜࡟⢄ᩘࢆタᐃࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋࡑࡢࡓࡵ㸪᪋⫧ἲࡀ␗࡞ࡿ᮲௳ୗ࡛㸪཰㔞࡜ရ㉁࡜ࡢ㛵ಀࢆ᳨ウࡋ㸪ࠕᐇࡾࡘࡃࡋࠖࡢ㐺ṇ⢄ᩘࢆ᫂ࡽ࠿࡟ࡋࡓࠋᮦᩱ࠾ࡼࡧ᪉ἲヨ㦂㸯⛣᳜᫬ᮇࡀ⏕⫱㸪཰㔞࠾ࡼࡧရ㉁࡟ཬࡰࡍᙳ㡪ヨ㦂ࡣ 㹼 ᖺ࡟㎰ᯘᴗ⥲ྜヨ㦂ሙ⟃ᚋศሙ ୕₾㒆኱ᮌ⏫ ෆỈ⏣ᅡሙ㸦/L&㸧࡛ᐇ᪋ࡋ㸪౪ヨရ✀ࡣࠕᐇࡾࡘࡃࡋࠖ࡜ࡋࡓࠋ⛣᳜᪥ࡣ  ᖺࡀ  ᭶ 㸪 ᪥㸪 ᖺࡀ  ᭶ 㸪 ᪥㸪 ᖺࡀ  ᭶ 㸪 ᪥࡜ࡋ㸪᱂᳜ᐦᗘࡣ  ᰴ㹫㸰㸪 ᰴ  ᮏ⛬ᗘ࡛⛶ⱑࢆᶵᲔ⛣᳜ࡋࡓࠋ๓సࡣᑠ㯏࡛㸪᪋⫧㔞ࡣ㸪ᇶ⫧࡜ࡋ࡚ 㹟ᙜࡓࡾ❅⣲ᡂศ࡛NJ㸪ฟ✑ 㹼 ᪥๓࡟➨ ᅇ✑⫧࡜ࡋ࡚NJ㸪➨ ᅇ✑⫧࡜ࡋ࡚㸪➨ ᅇ✑⫧ࡢ ᪥ᚋ࡟ NJ ᪋⏝ࡋࡓࠋヨ㦂つᶍࡣ  ༊ 㹫㸰ࡢ  ༊ไ࡛ᐇ᪋ࡋࡓࠋᡂ⇍ᮇ㡭࡟཰✭ࡋ㸪⢒⋞⡿ࢆ PP ┠ࡢ⦪┠⠠࡛㑅ูࡋ࡚⋞⡿㔜࡜༓⢏㔜ࢆ⟬ฟࡋࡓࠋ⋞⡿ࡢ᳨ᰝ➼⣭ࡣ㎰⏘≀᳨ᰝつ᱁࡟ᇶ࡙࠸࡚᱁௜ࡅࡋࡓ㸬ࡲࡓ㸪⋞⡿⣙  ⢏ࢆ✐⢏ุูᶵ㸦ᰴᘧ఍♫ࢧࢱࢣ㸪5*4,$㸧࡟࡚㸪ᩚ⢏Ṍྜ࡜ஙⓑ⢏㸪ᇶ㒊ᮍ⇍⢏㸪⭡⫼ⓑ⢏࡟ศ㢮ࡋ㸪ᮍ⇍⢏๭ྜࡢྜィࢆⓑᮍ⇍⢏๭ྜ࡜ࡋ࡚♧ࡋࡓࠋ㣗࿡ヨ㦂ࡣྠሙ㸪㎰⏘㒊࡛ᶆ‽᱂ᇵࡋࡓ ᭶୰᪪⛣᳜ࡢࠕࢥࢩࣄ࢝ࣜࠖࢆᇶ‽⡿࡜ࡋ㸪㣗⣊ᗇࡢヨ㦂ᐇ᪋せ㡿࡟‽ࡌ࡚㸪ࣃࢿࣝ  ྡ⛬ᗘ࡛⾜ࡗࡓࠋ⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡣ㸪㏆㉥እศᯒィࠕ࢖ࣥࣇࣛࢸࢵࢡࠖ࡟ࡼࡾ㸪Ỉศ᥮⟬ 㸣࡛ ᐃࡋࡓࠋ㸨㐃⤡㈐௵⪅㸦⟃ᚋศሙ㸸iwabuchi@farc.pref.fukuoka.jp㸧        ཷ௜ 2018 ᖺ 8 ᭶ 1 ᪥㸹ཷ⌮ 2018 ᖺ 11 ᭶ 8 ᪥ ⌧ ⚟ᒸ┴㎰ᯘỈ⏘㒊⤒Ⴀᢏ⾡ᨭ᥼ㄢ

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水稲品種「実りつくし」の収量・品質が安定する移植時期と適正籾数

ヨ㦂㸰཰㔞࣭ရ㉁࡜⢄ᩘ࡜ࡢ㛵ಀ ヨ㦂ࡣ 㹼 ᖺ࡟㎰ᯘᴗ⥲ྜヨ㦂ሙ⟃ᚋศሙ࡛⾜ࡗࡓࠋศ᪋య⣔ࡸ඲㔞ᇶ⫧⦆ຠᛶయ⣔㸪᪋⫧㔞ࡀ␗࡞ࡿᵝࠎ࡞᮲௳ୗ࡛㸪཰㔞࣭ရ㉁࡜⢄ᩘ࡜ࡢ㛵ಀࢆ᳨ウࡋࡓࠋ౪ヨရ✀ࡣࠕᐇࡾࡘࡃࡋ࡛ࠖ㸪ࠕࣄࣀࣄ࢝ࣜࠖࢆཧ⪃ရ✀࡜ࡋ㸪 ᭶୰᪪࡟⛶ⱑࢆᶵᲔ⛣᳜ࡋࡓࠋྛᖺḟࡢ⛣᳜᪥ࡣ ᖺࡀ  ᭶  ᪥㸪 ᖺࡀ  ᭶  ᪥㸪 ᖺࡀ  ᭶ ᪥࡜ࡋࡓࠋヨ㦂༊ࡢᵓᡂࢆ➨ ⾲࡟♧ࡋࡓࠋヨ㦂つᶍ㸪᱂᳜ᐦᗘ㸪᳜௜ᮏᩘࡸྛ✀ㄪᰝ㡯┠㸪 ᐃἲ࡟ࡘ࠸࡚ࡣヨ㦂 ࡟‽ࡌࡓࠋ➨㸯⾲ ᪋⫧ἲࡢヨ㦂༊ࡢᵓᡂ㻌ヨ㦂༊ྡᅇ✑⫧ᅇ✑⫧✑⫧ቑ⫧ᇶ⫧❅⣲᪋⫧㔞㸦NJD㸧✑⫧Ϩ✑⫧ϩィ㔞ࡀ 㸣ከࡃ㸪᳨ᰝ➼⣭ࡀⰋዲ࡛࠶ࡗࡓࠋ ᅇ✑⫧༊ࡣᅇ✑⫧༊࡜ẚ㍑ࡋ࡚㸪᭷ຠ✑ᩘ㸪㹫㸰ᙜࡓࡾ⢄ᩘ㸪Ⓩ⇍Ṍྜ࠾ࡼࡧ᳨ᰝ➼⣭࡟ᕪࡣࡳࡽࢀ࡞࠿ࡗࡓࡀ㸪཰㔞ࡀ㸣ከ࠿ࡗࡓࠋ⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡣ 㸣㧗࠿ࡗࡓࡀ㸪㣗࿡⥲ྜホ౯ࡣ ᅇ✑⫧༊࡜኱ࡁ࡞ᕪࡣࡳࡽࢀ࡞࠿ࡗࡓࠋ✑⫧ቑ⫧༊ࡢ཰㔞ࡣ ᅇ✑⫧༊ࡼࡾከࡃ㸪 ᅇ✑⫧༊࡜ᕪࡀ࡞࠿ࡗࡓࠋࠕᐇࡾࡘࡃࡋࠖࡢ 㹼 ᖺࡢ᪋⫧ヨ㦂࡟࠾࠸࡚㸪㹫㸰ᙜࡓࡾ⢄ᩘ࡜᳨ᰝ➼⣭㸪཰㔞࡜ࡢ㛵ಀࢆ➨ ᅗ࡟♧ࡋࡓࠋ㹫㸰ᙜࡓࡾ⢄ᩘࡢቑຍ࡜࡜ࡶ࡟᳨ᰝ➼⣭ࡀపୗࡍࡿഴྥ࡟࠶ࡾ㸪ᅇᖐᘧ࡟ࡼࡾ⢄ᩘࡀ  ⢏㹫㸰ࢆ㉸࠼ࡿ࡜㸪᳨ᰝ➼⣭ ➼௨ୗ࡜࡞ࡗࡓࠋࡲࡓ㸪㹫㸰ᙜࡓࡾ⢄ᩘࡢቑຍ࡜࡜ࡶ࡟཰㔞ࡀቑຍࡍࡿഴྥ࡟࠶ࡾ㸪⢄ᩘ  ⢏㹫㸰ࡢ࡜ࡁࡢ཰㔞ࡣ NJ㹟࡜࡞ࡗࡓࠋ⪃ ᐹ  ᇶ ⫧ ࡣ  ྕ 13.  㸪 ✑ ⫧ ࡛ 1. ྕ ࢆ౑⏝㸪ࠕࣄࣀࣄ࢝ࣜࠖࡣ ᅇ✑⫧  ✑⫧Ϩࡣฟ✑ 㹼 ᪥๓㸪✑⫧ϩࡣࡑࡢ  㐌㛫ᚋ࡟ᐇ᪋ ↓❅⣲༊࡜඲㔞ᇶ⫧⦆ຠ༊ ❅⣲᪋⫧㔞ࡣ NJ㹟㸪NJ㹟 ࢆタ⨨⤖ ᯝヨ㦂㸯 ⛣᳜᫬ᮇࡀ⏕⫱㸪཰㔞࠾ࡼࡧရ㉁࡟ཬࡰࡍᙳ㡪⛣᳜᫬ᮇูࡢ⏕⫱㸪཰㔞࠾ࡼࡧရ㉁ࢆ➨㸪 ⾲࡟♧ࡋࡓࠋ ᭶ 㹼 ᪥⛣᳜ࡣ㸪 ᭶  ᪥⛣᳜࡟ẚ࡭࡚㸪⛣᳜㹼ฟ✑ᮇࡲ࡛ࡢᮇ㛫ࡀ  ᪥㛫㛗࠿ࡗࡓࠋ ᭶ 㹼 ᪥⛣᳜ࡣ㸪 ᭶  ᪥⛣᳜࡟ẚ࡭࡚㸪㹫㸰ᙜࡓࡾ᭷ຠ✑ᩘ㸪⢄ᩘࡣྠ⛬ᗘ࡛㸪Ⓩ⇍Ṍྜࡀ㧗ࡃ㸪༓⢏㔜ࡀ㔜ࡃ㸪ከ཰࡛࠶ࡗࡓࠋ᳨ᰝ➼⣭㸪ᩚ⢏Ṍྜ㸪ⓑᮍ⇍⢏๭ྜ࡟ᕪࡀㄆࡵࡽࢀࡎ㸪⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡀ㧗࠿ࡗࡓࡀ㸪㣗࿡࡟ᕪࡣࡳࡽࢀ࡞࠿ࡗࡓࠋヨ㦂㸰 ཰㔞࣭ရ㉁࡜⢄ᩘ࡜ࡢ㛵ಀ᪋⫧ἲูࡢ⏕⫱㸪཰㔞㸪ရ㉁࠾ࡼࡧ㣗࿡࡜ࡢ㛵ಀࢆ➨㸪 ⾲࡟♧ࡋࡓࠋ ᅇ✑⫧༊ࡣࠕࣄࣀࣄ࢝ࣜࠖ࡜ẚ㍑ࡋ࡚㸪཰Ỉ✄࡟࠾ࡅࡿ⛣᳜᫬ᮇ࡜཰㔞࡜ࡢ㛵ಀ࡟ࡘ࠸࡚ࡣ㸪⛣᳜᫬ᮇࡀ᪩࠸᮲௳࡯࡝㸪ᰤ㣴⏕㛗ᮇ㛫ࡀ㛗ࡃ☜ಖࡉࢀ࡚㸪ฟ✑๓ࡢ࡛ࢇ࡫ࢇ⵳✚㔞ࡀከࡃ࡞ࡾ㸪ࡑࡢ⤖ᯝ㸪ฟ✑ᚋࡢගྜᡂ⏘≀ࡀከࡃ࡞ࡗ࡚ከ཰࡜࡞ࡿ㸦ᯇᓥࡽ㸧ࠋ㹼 ᖺࡢ  ᖺ㛫㸪 ᭶ 㹼 ᪥⛣᳜࡜  ᭶  ᪥⛣᳜ࢆẚ㍑ࡋࡓ⤖ᯝ㸪 ᭶ 㹼 ᪥⛣᳜ࡣ ᭶  ᪥⛣᳜࡟ẚ࡭࡚㸪⛣᳜㹼ฟ✑ᮇࡢᮇ㛫ࡀ㛗ࡃ⥔ᣢࡉࢀ㸪Ⓩ⇍Ṍྜࡀ㧗ࡃ㸪༓⢏㔜ࡀ㔜ࡃ㸪཰㔞ᛶࡀඃࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ௨ୖࡢࡇ࡜࠿ࡽ㸪ࠕᐇࡾࡘࡃࡋࠖࡣ ᭶ᮎࡢ㐜᳜࠼ࡣ㑊ࡅࡓ᪉ࡀࡼ࠸࡜⪃࠼ࡽࢀࡓࠋ᪋⫧ἲ࡛ࡣ㸪ࠕࣄࣀࣄ࢝ࣜࠖࡢศ᪋య⣔࡟࠾࠸࡚㸪ᮏ┴࡛ࡣ㣗࿡ྥୖᑐ⟇࡜ࡋ࡚㸪 ᅇ┠ࡢ✑⫧ࢆ┬␎ࡍࡿ᪋⫧ἲࢆ᥎㐍㸦⏣୰ࡽ㸧ࡋ࡚࠸ࡿࡀ㸪ࡇࢀࡲ࡛࡟ࠕඖẼࡘࡃࡋ࡛ࠖࡣ ᅇ✑⫧࡛ࡶ㣗࿡ࡢపୗࡀᑡ࡞ࡃ㸪཰㔞ࡀྥୖࡍࡿ஦౛ࡀሗ࿌ࡉࢀ࡚࠸ࡿ㸦ᐑᓮࡽ㸧ࠋᮏ┴ࡢỈ✄᱂ᇵ࡟࠾ࡅࡿ  ᅇ✑⫧ࡢ㣗࿡࡬ࡢᙳ㡪࡟ࡘ࠸࡚ࡣ㸪ࠕࡘࡃࡋ᪩⏕ࠖ㸪ࠕࣄࣀࣄ࢝ࣜࠖ࠾ࡼࡧࠕ࠶ࡁࡉࡸ࠿ࠖ࡟࠾࠸࡚኱ࡁࡃ㸦ᒾῲࡽ㸪⏣୰ࡽ㸪ᕝᮧ࣭▼ሯ㸧㸪ࠕࡘࡃࡋࢁࡲࢇࠖ࠾ࡼࡧࠕඖẼࡘࡃࡋ࡛ࠖᑠࡉ࠸㸦ᐑᓮࡽ㸧ࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡲࡓ㸪ࠕࡘࡃࡋ᪩⏕ࠖ㸪ࠕࣄࣀࣄ࢝ࣜࠖ࠾ࡼࡧࠕ࠶ࡁࡉࡸ࠿ࠖࡣ⅕㣤⡿ࡢ㣗࿡ࡀࠕࢥࢩࣄ࢝ࣜࠖ୪㸦ཎ⏣ࡽ㸪὾ᆅࡽ㸪ᕝᮧ࣭▼ሯ㸧➨㸰⾲ ⛣᳜᫬ᮇูࡢ⏕⫱⛣᳜᫬ᮇ᭶᪥㹼⛣᳜᫬ᮇᖺᗘ஺஫స⏝ฟ✑ᮇ⛣᳜᪥㹼ฟ✑ᮇᡂ⇍ᮇ⛩㛗᭶᪥㸬㸫᪥㸫᭶᪥㸫FP
QV㸫㸫㸫㸫㸫㸫

QVQV ಽఅ⛬ᗘࡣ↓  㹼⏒  ࡢ ẁ㝵ホ౯ ศᩓศᯒ࡟ࡼࡾ ࡣ㸣Ỉ‽࡛᭷ពᕪ᭷ࡾ㸪QV ࡣ᭷ពᕪ↓᭷ຠ✑ᩘᮏ੍
QVQVಽఅ
⛬ᗘ
㸫㸫㸫

104

福岡県農林業総合試験場研究報告 ５（2019） ➨㸱⾲  ⛣᳜᫬ᮇูࡢ཰㔞㛵㐃ᙧ㉁㸪ရ㉁

⛣᳜᫬ᮇ᭶᪥㹼⛣᳜᫬ᮇᖺᗘ஺஫స⏝੍ᙜࡓࡾ⢄ᩘ⢏QVⓏ⇍Ṍྜ㸣༓⢏㔜J⢭⋞⡿㔜NJD

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QVྠᕥẚ⋡㸣㸫㸫᳨ᰝ➼⣭
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QVⓑᮍ⇍⋞⡿㣗࿡⥲⢏๭ྜ㺞㺻㺨㺽㺖ྜホ౯㸣㸣
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 ྠᕥẚ⋡ࡣ  ᭶ 㹼 ᪥᳜ࢆ  ࡜ࡋࡓẚ⋡ ᳨ᰝ➼⣭ࡣ  ➼ࣀୖ  㹼 ➼ࣀୗ   ศᩓศᯒ࡟ࡼࡾ 㸪 ࡣࡑࢀࡒࢀ 㸪㸣Ỉ‽࡛᭷ពᕪ᭷ࡾ㸪QV ࡣ᭷ពᕪ࡞ࡋ➨㸲⾲ ᪋⫧ἲูࡢ⏕⫱ヨ㦂༊ྡⴥⰍ㸦63$'㸧✑⫧᫬ ✑ᥞᮇᅇ✑⫧ᅇ✑⫧✑⫧ቑ⫧㸫㸫ࣄࣀࣄ࢝ࣜ᪋⫧ἲᖺᗘ஺஫స⏝㸫㸫㸫⛩㛗FP᭷ຠ✑ᩘᡂ⇍ᮇ᭶᪥㸫㸫㸫

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QVಽఅ⛬ᗘᮏ੍ ಽఅ⛬ᗘࡣ㸪↓  㹼⏒  ࡢ ẁ㝵ホ౯ ศᩓศᯒ࡟ࡼࡾ 㸪 ࡣࡑࢀࡒࢀ㸪㸣Ỉ‽࡛᭷ពᕪ᭷ࡾ㸪
QV ࡣ᭷ពᕪ࡞ࡋ㸦ᐇࡾࡘࡃࡋࡢࡳ㸧➨㸳⾲ ᪋⫧ἲูࡢ཰㔞㛵㐃ᙧ㉁㸪ရ㉁

ᅇ✑⫧ᅇ✑⫧✑⫧ቑ⫧Ⓩ⇍Ṍྜ㸣ࣄࣀࣄ࢝ࣜ᪋⫧ἲᖺᗘ஺஫స⏝

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ヨ㦂༊ྡ੍ᙜࡓࡾ⢄ᩘ⢏QV༓⢏㔜J᳨ᰝ➼⣭ᩚ⢏Ṍྜⓑᮍ⇍⢏ṌྜE
D
Dྠᕥẚ⋡㸣㸣QV㸫㸫㸫⢭⋞⡿㔜NJD㣗࿡⋞⡿㺞㺻㺨㺽㺖㸣㸣E
DD㸫QVQV

QVQVQVQV㸫㸫㸫QV ྠᕥẚ⋡ࡣ ᅇ✑⫧ࢆ  ࡜ࡋࡓẚ⋡ ᳨ᰝ➼⣭ࡣ ➼ࣀୖ  㹼 ➼ࣀୗ   ✑⫧ቑ⫧ࡢ㣗࿡ࡣ 㸪 ᖺࡢࡳࡢ⤖ᯝ ศᩓศᯒ࡟ࡼࡾ 㸪 ࡣࡑࢀࡒࢀ㸪㸣Ỉ‽࡛᭷ពᕪ᭷ࡾ㸪QV ࡣ᭷ពᕪ࡞ࡋ㸦ᐇࡾࡘࡃࡋࡢࡳ㸧 ␗࡞ࡿⱥᩥᏐ㛫࡟᭷ពᕪ᭷ࡾ 7XNH\  

水稲品種「実りつくし」の収量・品質が安定する移植時期と適正籾数㸯➼ୖ\ [5t ୰᳨ᰝ➼⣭㸯➼ୗ㸰➼ୖ㸰➼ ୰\ [5t 5 ⢭⋞⡿㔜㸦NJD㸧⢭⋞⡿㔜㸦NJD㸧㸯➼

105㸰➼ୗ੍ᙜࡓࡾ⢄ᩘ㸦㸧੍ᙜࡓࡾ⢄ᩘ㸦㸧੍ᙜࡓࡾ⢄ᩘ㸦㸧➨㸯ᅗ 㹫㸰ᙜࡓࡾ⢄ᩘ࡜᳨ᰝ➼⣭㸪⢭⋞⡿㔜࡜ࡢ㛵ಀ ྠᕥẚ⋡ࡣ 㹼 ᖺࡢ᪋⫧ἲヨ㦂 ᳨ᰝ➼⣭ࡣ ➼ࣀୖ  㹼 ➼ࣀୗ    ࡣ㸣Ỉ‽࡛᭷ព࡛࠶ࡾ㸪ࠕࡘࡃࡋࢁࡲࢇࠖ࠾ࡼࡧࠕඖẼࡘࡃࡋ࡛ࠖࡣࠕࢥࢩࣄ࢝ࣜࠖࡼࡾඃࢀࡿ࡜ሗ࿌㸦὾ᆅࡽ 㸪࿴⏣ࡽ 㸧ࡉࢀ࡚࠸ࡿࠋ௒ᅇࡢヨ㦂࡛ࡣ㸪 ᅇ✑⫧᪋⏝ࡣ ᅇ✑⫧᪋⏝࡟ẚ࡭࡚㸪㣗࿡⥲ྜホ౯࡛ࡣ኱ᕪࡀࡳࡽࢀ࡞࠸୍᪉㸪཰㔞ࡣྥୖࡋࡓࠋࡇࢀࡽࡢ⤖ᯝ࠿ࡽࠕࢥࢩࣄ࢝ࣜࠖࡼࡾ㣗࿡ࡀඃࢀࡿရ✀ࡣ⋞⡿ࢱࣥࣃࢡ㉁ྵ᭷⋡ࡀࡸࡸ㧗ࡃ࡞ࡗࡓ࡜ࡋ࡚ࡶ㸪㣗࿡ࡢపୗࡀᑠࡉࡃ㸪㏣⫧ᅇᩘࡢቑຍ࡟ࡼࡿᕪࡀ࡛࡟ࡃ࠸࡜᥎ᐹࡉࢀࡿࠋࡑࡢࡓࡵ㸪ࠕᐇࡾࡘࡃࡋࠖࡣ㸪 ᅇ✑⫧᪋⏝࡛཰㔞ࢆ☜ಖࡍ࡭ࡁ࡛࠶ࡿ࡜⪃࠼ࡿࠋ཰㔞࠾ࡼࡧရ㉁ࡀᏳᐃࡍࡿ┠ᶆ⢄ᩘࡣࠕඖẼࡘࡃࡋ࡛ࠖࡣ 㹼 ⢏㹫㸰㸦ᐑᓮࡽ 㸧㸪ࠕࣄࣀࣄ࡛࢝ࣜࠖࡣ  ⢏㹫㸰⛬ᗘ㸦ᐑᓮࡽ㸧࡜ሗ࿌ࡉࢀ࡚࠸ࡿࠋ௒ᅇ㸪㹼 ᖺࡢ ᖺ㛫࡟᪋⫧ࡀ␗࡞ࡿ᮲௳࡛㸪ࠕᐇࡾࡘࡃࡋࠖࢆ᱂ᇵࡋ࡚㹫㸰ᙜࡓࡾ⢄ᩘ࡜᳨ᰝ➼⣭ࢆ᳨ウࡋࡓ⤖ᯝ㸪 ➼ࢆ⥔ᣢ࡛ࡁࡿ㹫㸰ᙜࡓࡾ⢄ᩘࡣ  ⢏㹫㸰࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࡲࡓ㸪 ➼⡿⏕⏘࡟ຍ࠼࡚㧗཰㔞ࢆᚓࡿࡇ࡜ࡣ㸪཰┈㠃࡛㔜せ࡛࠶ࡾ㸪௒ᅇࡢヨ㦂᮲௳࡟࠾࠸࡚ࡣ㹫㸰ᙜࡓࡾ⢄ᩘ  ⢏㹫㸰ࢆ☜ಖࡍࢀࡤ⢭⋞⡿㔜 NJ㹟ࡢ㧗཰㔞࡜࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ௨ୖ࡟ࡼࡾ㸪ࠕᐇࡾࡘࡃࡋࠖ࡟࠾ࡅࡿ㹫㸰ᙜࡓࡾ┠ᶆ⢄ᩘࡣ ⢏㹫㸰ࡀ㐺ࡍࡿ࡜⪃࠼ࡽࢀࡓࠋ௒ᚋ㸪⡿౯ࡢపୗࡀண᝿ࡉࢀࡿ୰࡛㸪⡿ࡢ㧗ရ㉁Ᏻᐃ⏕⏘ࢆᅗࡾ㸪㎰ᐙ཰ධࢆྥୖࡉࡏࡿほⅬ࠿ࡽ㸪ࠕᐇࡾࡘࡃࡋࠖࢆᬑཬᣑ኱ࡉࡏࡿࡓࡵ࡟ࡣ㸪㐜᳜࠼ࢆ㑊ࡅ㸪᪋⫧࡟ࡼࡿ⢄ᩘࡢไᚚࢆ☜ᐇ࡟ᐇ᪋ࡍࡿࡇ࡜ࡀᚲせ࡜࡞ࡿࠋᘬ⏝ᩥ⊩὾ᆅຬḟ࣭௒ᯘ᝷୍㑻࣭኱㔛ஂ⨾࣭すᒣኖ࣭ྜྷ㔝⛱࣭
ᕝᮧᐩ㍤࣭ᯇỤຬḟ  Ỉ✄᪂ရ✀͂ࡘࡃࡋ᪩⏕̓ࡢ⫱ᡂ㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬὾ᆅຬḟ࣭኱㔛ஂ⨾࣭ᕝᮧᐩ㍤࣭௒ᯘ᝷୍㑻࣭すᒣኖ࣭࿴⏣༟ஓ࣭ྜྷ㔝⛱࣭Ᏻ㛗▱Ꮚ  Ỉ✄᪂ရ✀͂ࡘࡃࡋࢁࡲࢇ̓ࡢ⫱ᡂ㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬ཎ⏣ⓡ஧࣭ᯇỤຬḟ࣭ྜྷ㔝⛱࣭ᑿᙧṊᩥ࣭బ⸨ᑑᏊ࣭㛗ᑿᏥ⚫࣭㔝⏣ᨻ᫓  ⚟ᒸ┴࡟࠾ࡅࡿⰋ㣗࿡୰⏕Ỉ✄ࡢ᪂ዡບရ✀ࠕࣄࣀࣄ࢝ࣜࠖ㸬⚟ᒸ㎰⥲ヨ◊ሗ $㸸–㸬ᒾῲဴஓ࣭⏣୰ᾈᖹ࣭ᑿᙧṊᩥ࣭὾ᆅຬḟ  Ỉ✄ရ✀͂ࡘࡃࡋ᪩⏕̓ࡢ㣗࿡ྥୖࡢࡓࡵࡢ᱂ᇵἲ➨㸯ሗ㣗࿡࠿ࡽࡳࡓ᭱㐺⢄ᩘ㸪཰㔞ཬࡧ㣗࿡ྥୖࡢࡓࡵࡢ✑⫧᪋⏝ἲ㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬
ᕝᮧᐩ㍤࣭▼ሯ᫂Ꮚ  Ỉ✄ရ✀͂࠶ࡁࡉࡸ࠿̓ࡢ㧗ရ㉁࣭Ⰻ㣗࿡࠾ࡼࡧᏳᐃከ཰ࡢࡓࡵࡢ᪋⫧᪉ἲ㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬⡿✐Ᏻᐃ౪⤥☜ಖᨭ᥼ᶵᵓ  ⡿ࡢᾘ㈝ືྥㄪᰝ⤖ᯝ㸬KWWSZZZNRPHQHWMSMLVKXFKRXVDKWPO ᖺ  ᭶㜀ぴ ᯇᓥ┬୕࣭ゅ⏣බṇ࣭┿୰ከ႐ኵ  Ỉ✄ࡢⓏ⇍࡟ཬࡰࡍ⏕⫱ྛᮇࡢẼ ࣭᪥ᑕཬࡧẼ ㍑ᕪࡢᙳ㡪 ㎰ᴗཬࡧᅬⱁ㸸–㸬ᐑᓮ┿⾜࣭ྜྷ㔝⛱࣭ෆᕝಟ࣭ᒾῲဴஓ࣭Ⲩᮌ㞞Ⓩ࣭▼ሯ᫂Ꮚ࣭ᑠ⏣ཎᏕ἞  Ỉ✄᪂ရ✀ࠕඖẼࡘࡃࡋࠖࡢ⛣᳜᫬ᮇ࠾ࡼࡧ  ᅇ┠✑⫧ࡢ᭷↓ࡀ཰㔞㸪ရ㉁࠾ࡼ
ࡧ㣗࿡࡟ཬࡰࡍᙳ㡪㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬ᐑ ᓮ┿⾜࣭ Ⲩᮌ㞞Ⓩ ࣭ᒾῲ ဴஓ࣭ෆ ᕝ  ಟ࣭ᖹ ⏣ ᭸ஓᬮ໬࡟ᑐᛂࡋࡓࠕࣄࣀࣄ࢝ࣜࠖࡢ㧗ရ㉁Ᏻᐃ
⏕⏘ᢏ⾡㸬➨  ሗ㧗 Ⓩ⇍᮲௳ୗ࡟࠾ࡅࡿእほရ㉁࠿
ࡽࡳࡓ㐺ṇ⢄ᩘࡢ᳨ウ᪥స஑ᨭሗ 㸸–㸬⏣୰ᾈᖹ࣭ஂಖ⏣Ꮥ࣭ᕝᮧᐩ㍤  Ỉ✄ရ✀ࠕࣄࣀࣄ࢝ࣜࠖࡢ㣗࿡ྥୖࡢࡓࡵࡢ✑⫧᪋⏝ἲ㸬஑㎰◊ 㸸㸬࿴⏣༟ஓ࣭ᆤ᰿ṇ㞝࣭஭ୖᩗ࣭ᑿᙧṊᩥ࣭὾ᆅຬḟ࣭ᯇỤຬḟ࣭኱㔛ஂ⨾࣭Ᏻ㛗▱Ꮚ࣭ᕝᮧᐩ㍤࣭▼ሯ᫂Ꮚ106

福岡県農林業総合試験場研究報告 ５（2019） 㧗 Ⓩ⇍ᛶ࡟ඃࢀࡿỈ✄᪂ရ✀ࠕඖẼࡘࡃࡋࠖࡢ⫱ᡂ࠾ࡼࡧࡑࡢ≉ᛶ㸬⚟ᒸ㎰⥲ヨ◊ሗ 㸸–㸬࿴⏣༟ஓ࣭஭ୖᩗ࣭ᆤ᰿ṇ㞝࣭ᑿᙧṊᩥ࣭ᐑཎඞ඾࣭὾ᆅຬḟ࣭ྂᗉ㞞ᙪ࣭ᐑᓮ┿⾜࣭ᒣཱྀಟ࣭▼ᶫṇᩥ࣭బ⸨኱࿴࣭ᯇỤຬḟ  ୰⏕ࡢᬌ⇍ᮇ࡛㧗 ⪏ᛶ㸪ከ཰Ⰻ㣗࿡Ỉ✄᪂ရ✀ࠕᐇࡾࡘࡃࡋࠖࡢ⫱ᡂ㸬⚟ᒸ㎰ᯘ
ヨ◊ሗ 㸸–㸬ⱝᯇㅬ୍࣭బࠎᮌಟ࣭ୖ୍ⷵ㑻࣭⏣୰᫛⏨  ᬮᆅỈ✄ࡢⓏ⇍ᮇ㛫ࡢ㧗 ࡀ⋞⡿ရ㉁࡟ཬࡰࡍᙳ㡪 ᪥స⣖㸸–㸬