Effect of Deep Planting and Deep-flood Irrigation on the Yield and Quality of Rice

Chiba, Masahiro; Matsumura, Osamu; Terao, Tomio; Watanabe, Hajime

doi:10.1626/jcs.80.312

Cited by 3 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the combined use of moderate DFI treatment and deep planting showed a greater suppression of the number of stems (Fig. 8), which consequently decreased the number of panicles and increased the grains per panicle (Table 2, Chiba et al 2011b). Therefore, the combination of moderate DFI and deep planting had an additive effect on increases in panicle weight as compared with each separate effect.…”

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 92%

“…At a water depth of approximately 10 cm, the percentage of productive tillers was decreased to approximately 90% in Hatsuboshi and less than 80% in Koshihikari. Deep planting is another method of suppressing tiller emergence (Ito et al 1970, Saito 1994 Agriculture, Forestry and Fisheries, Shimane Prefectural Government, 2015), only small reductions in yield were observed when the planting depth was within the adjustable range of a transplanting machine (usually 5 cm) (Chiba et al 2011b). Accordingly, the combined use of moderate DFI (at a water depth of 10 cm) and adjustment of the deepest planting depth using machine planting might provide an alternative to DFI at 18 cm (Chiba et al 2011b).…”

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

“…Fig. 9 shows the effect of these alternative methods on the percentage of chalky grains (Chiba et al 2011b). …”

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

“…Effect of deep flood irrigation on root activity and the bearing capacity of soil Rice farmers might wonder whether DFI will cause the soil to become too highly reduced as DFI has been shown to decrease the soil redox potential (Chiba et al 2011b, Furuya et al 1991. A low redox potential in soil is known to cause serious damage to rice plant roots.…”

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

“…Fig. 1 shows an example of water management regimes in Niigata, Japan that use DFI and conventional water irrigation (CWI) (Chiba et al 2009, Chiba et al 2011b. Rice seedlings were transplanted in the middle of May under both water management regimes.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Improvement in Rice Grain Quality by Deep-flood Irrigation and its Underlying Mechanisms

Chiba

Terao

Watanabe

et al. 2017

JARQ

Self Cite

View full text Add to dashboard Cite

The increased occurrence of chalky rice grains as a result of global warming is becoming a serious problem. The application of deep-flood irrigation (DFI) to a water depth of 18 cm from the active tillering stage to the maximum tillering stage suppresses the occurrence of chalky grains under both high and normal temperature conditions without decreasing yields. The mechanism by which DFI reduces chalky grains was analyzed relative to carbohydrate supply as carbohydrate deficiencies have been proposed as a cause of chalky grains. DFI suppresses the occurrence of chalky grains due to the increased supply of carbohydrates to the panicles. In paddy fields where a water depth of 18 cm is not possible, such as in paddy fields with low levees or low water supplies, the combined use of moderate DFI at a water depth of 10 cm with deep planting can be substituted to produce high-quality rice. DFI did not damage root activity at the ripening stage, even in soils with a low redox potential. Although the DFI treatment slightly decreased the penetration resistance of the soil, the bearing capacity was not affected at the time of combine harvest.

show abstract

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 92%

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

“…Fig. 9 shows the effect of these alternative methods on the percentage of chalky grains (Chiba et al 2011b). …”

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

Section: Improvements Via Deep-flood Irrigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improvement in Rice Grain Quality by Deep-flood Irrigation and its Underlying Mechanisms

Chiba

Terao

Watanabe

et al. 2017

JARQ

Self Cite

View full text Add to dashboard Cite

show abstract

Optimum water depth for suppressing late watergrass growth with minimizing rice growth inhibition under different temperature conditions

Iwasa,

Adachi,

Ookawa

2024

Plant Production Science

View full text Add to dashboard Cite

Koshihikari: a premium short-grain rice cultivar – its expansion and breeding in Japan

Kobayashi¹,

Hori

Yamamoto

et al. 2018

Rice

127

View full text Add to dashboard Cite

Koshihikari, a Japanese short-grain rice cultivar, was developed in 1956, more than 60 years ago. Despite its age, it has been the most widely grown cultivar in Japan for more than 35 years, making it the most important rice for the Japanese people. In its early days, there was no reason to predict that Koshihikari would become so widely disseminated. However, since the end of the post–World War II food shortage in the 1960s, Japanese preferences changed from high productivity to good eating quality. This triggered wide expansion of Koshihikari cultivation due to the cultivar’s excellent taste and texture. With increasing cultivation of Koshihikari in Japan, several good agronomic characteristics beyond its high eating quality became apparent, such as its good adaptation to different environments, tolerance to pre-harvest sprouting, and cold tolerance during the booting stage. These characteristics outweigh drawbacks such as its low blast resistance and low lodging resistance. The popularity of Koshihikari influenced subsequent rice breeding trends at regional agricultural experimental stations, and the characteristics of newly developed rice cultivars in Japan are usually rated relative to Koshihikari, which is used as the benchmark. Koshihikari was the first japonica rice cultivar whose whole genome has been sequenced by means of next-generation sequencing. Furthermore, comparison of the genomes of Koshihikari and Nipponbare has provided detailed insights into the genetic diversity of Japanese rice cultivars relative to that in rice populations elsewhere in the world. Further progress in rice genomics is gradually unlocking the mechanisms that underlie the agronomic characteristics of Koshihikari. To support both research and the development of novel rice cultivars, a series of isogenic and near-isogenic lines in the Koshihikari genetic background have been continuously developed. These new findings and materials will facilitate genomics-assisted rice breeding, eventually leading to superior cultivars.Electronic supplementary materialThe online version of this article (10.1186/s12284-018-0207-4) contains supplementary material, which is available to authorized users.

show abstract

Effect of Deep Planting and Deep-flood Irrigation on the Yield and Quality of Rice

Cited by 3 publications

References 12 publications

Improvement in Rice Grain Quality by Deep-flood Irrigation and its Underlying Mechanisms

Improvement in Rice Grain Quality by Deep-flood Irrigation and its Underlying Mechanisms

Optimum water depth for suppressing late watergrass growth with minimizing rice growth inhibition under different temperature conditions

Koshihikari: a premium short-grain rice cultivar – its expansion and breeding in Japan

Contact Info

Product

Resources

About