Yielding Performance of "Kita-aoba", High-yielding Rice Variety for Hokkaido Region, Northern Japan

被引：9

作者：

Hayashi, Satoshi ^{[1
]}

Ohshita, Yasuo ^{[1
]}

Kimiwada, Kenji ^{[1
]}

Tsuji, Hiroyuki ^{[1
]}

Ushiki, Jun ^{[1
]}

Miyaura, Sumi ^{[1
]}

Shibuya, Yukinori ^{[1
]}

机构：

[1] NARO Hokkaido Agr Res Ctr, Sapporo, Hokkaido 0628555, Japan

来源：

PLANT PRODUCTION SCIENCE | 2012年 / 15卷 / 03期

关键词：

High-yielding rice; Sink capacity; Yield potential; DRY-MATTER PRODUCTION; NITROGEN APPLICATION; MORPHOLOGICAL TRAITS; SOUTHWESTERN JAPAN; CULTIVAR TAKANARI; TOHOKU REGION; PLANTING TIME; FORAGE RICE;

D O I：

10.1626/pps.15.209

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The yielding performance of the first high-yielding rice variety for Hokkaido, Kita-aoba, after application of various amounts of nitrogen (9.0 to 23.7 g m(-2) in 2008 and 10.5 to 16.5 g m(-2) in 2010) and under various planting densities (13.2 to 33.2 hills m(-2) in 2008 and 17.5 to 36.8 hills m(-2) in 2010) was examined in comparison with that of the common variety, Kirara397. Kita-aoba had higher grain yield than Kirara397 owing to its large sink capacity through larger sink capacity per unit biomass at heading. Kita-aoba had a high yield potential (the maximum grain yield of 1081 g m(-2)), and achieved a high grain yield even in Hokkaido where the rice-growing season is short. Kita-aoba had a large sink size, but, judging from the relationship between sink capacity and percentage of sink filled, further increase of sink size might not result in increase of grain yield. Kita-aoba showed a great increase in shoot dry matter from heading to maturity, but it was not enough to fill its large sink.

引用

页码：209 / 215

页数：7

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