水稲における"うわ根"の形成量と玄米収量との関係
書誌事項
- タイトル別名
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- The Superficial Root Formation and Yield of Hulled Rice
- スイトウ ニ オケル ウワネ ノ ケイセイリョウ ト ゲンマイ シュウリョウ
- The superficial root function and yield of hulled rice.
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抄録
The test material was ripening plants. The plants were grown in 150 paddy fields at Aomori, Akita, Yamagata, Fukushima, Chiba, Saitama, Nagano, Fukui, Hiroshima, Kouchi and Saga prefectures in Japan (Table 1). Superficial roots were collected by means of the soil-core sampling method. Core, consisting of a cylindrical tube with an internal diameter 5 cm and 5 cm height, was pressed vertically into the soil up to 5 cm in ten places in the middle of intrarow spacing (Fig. 1). The degree of superficial root formation is shown by the average weight of roots involved in the soil core. Value of yield of hulled rice was calculated in terms of field per 10 are. It has been found that superficial root weight is correlated with the field of hulled rice (Fig. 3). In case of the fields which produced yields between 180 kg and 600 kg hulled rice, superficial root weight and yield of hulled rice showed a considerable value of correlation coefficient (r=+0.831). In case of the fields which produced yields between 601 kg and 801 kg of hulled rice, superficial root weight and yield of hulled rice showed relatively lower correlation coefficient (r=+0.313) as shown in Fig. 4. From these results, it has been assumed that superficial root formation contributed to rise of the yield of hulled rice. Also it can be reported that, the importance of root system is not only due to its superficial root but also contributed to the root grown into both the plow layer and subsoil.
収録刊行物
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- 日本作物学会紀事
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日本作物学会紀事 47 (4), 617-628, 1978
日本作物学会
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詳細情報 詳細情報について
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- CRID
- 1390282679259012096
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- NII論文ID
- 110001728806
- 10007594160
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- NII書誌ID
- AN00189888
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- ISSN
- 13490990
- 00111848
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- NDL書誌ID
- 2035975
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可