Effect of Field Drainage on Root Lodging Tolerance in Direct-Sown Rice in Flooded Paddy Field

Terashima, Kazuo; Taniguchi, Takeshi; Ogiwara, H.; Umemoto, Takayuki

doi:10.1626/pps.6.255

Cited by 7 publications

(4 citation statements)

References 7 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pushing resistance can be used as an index of lodging resistance of rice plants 27 39 40 41 42 . A prostrate tester (DIK7400; Daiki Rika Kogyo Co., Saitama, Japan) was set perpendicularly to the shoot at 15 cm above the soil surface, and pushing resistance was measured by pushing the plants to an angle of 45° from the vertical.…”

Section: Methodsmentioning

confidence: 99%

Deep rooting conferred by DEEPER ROOTING 1 enhances rice yield in paddy fields

Arai‐Sanoh

Takai

Yoshinaga

et al. 2014

Sci Rep

138

View full text Add to dashboard Cite

To clarify the effect of deep rooting on grain yield in rice (Oryza sativa L.) in an irrigated paddy field with or without fertilizer, we used the shallow-rooting IR64 and the deep-rooting Dro1-NIL (a near-isogenic line homozygous for the Kinandang Patong allele of DEEPER ROOTING 1 (DRO1) in the IR64 genetic background). Although total root length was similar in both lines, more roots were distributed within the lower soil layer of the paddy field in Dro1-NIL than in IR64, irrespective of fertilizer treatment. At maturity, Dro1-NIL showed approximately 10% higher grain yield than IR64, irrespective of fertilizer treatment. Higher grain yield of Dro1-NIL was mainly due to the increased 1000-kernel weight and increased percentage of ripened grains, which resulted in a higher harvest index. After heading, the uptake of nitrogen from soil and leaf nitrogen concentration were higher in Dro1-NIL than in IR64. At the mid-grain-filling stage, Dro1-NIL maintained higher cytokinin fluxes from roots to shoots than IR64. These results suggest that deep rooting by DRO1 enhances nitrogen uptake and cytokinin fluxes at late stages, resulting in better grain filling in Dro1-NIL in a paddy field in this study.

show abstract

Section: Methodsmentioning

confidence: 99%

Deep rooting conferred by DEEPER ROOTING 1 enhances rice yield in paddy fields

Arai‐Sanoh

Takai

Yoshinaga

et al. 2014

Sci Rep

138

View full text Add to dashboard Cite

show abstract

“…Water management for constant flooding requires a lot of labor, and if a water-saving irrigation method can be developed, it will not only use resource efficiently, but also will help to reduce the rice farmer's labor for water management. In Japan there has been a practice of midsummer drainage to increase soil hardness and anchoring ability of roots for minimizing lodging (Terashima et al, 2003) and intermittent irrigation techniques for high-yielding rice to decrease initiation of unproductive tillers (Matsushima, 1973;Matsuo et al, 1995), but few studies have been conducted to develop water-saving paddy rice cultivation techniques, partly because of assumption that water is unlimited resource in Japan. Now in the 21 st century, the situation is changing and it will be worthwhile to study the water-saving paddy rice production system.…”

mentioning

confidence: 99%

Evaluation of Water-Saving Rice-Winter Crop Rotation System in a Suburb of Tokyo

Kamoshita

Ishikawa

Abe

et al. 2007

Plant Production Science

View full text Add to dashboard Cite

: Water-saving rice-winter crop rotation systems were repeated for 4 cycles from 2000 to 2004 in an urban area, Nishitokyo, Japan, to assess the effects of water-saving (i.e. non-flooded vs. flooded) on grain yield of rice (Oryza sativa L.) and chemical constituents of percolating water. The effects of pre-rice winter cropping compared with fallow on rice yield were also examined. The pre-cultivated crops were wheat (Triticum aestivum L.), italian ryegrass (Lolium multiflorum Lam.) or spinach (Spinacea oleracea L.) with their above-ground parts removed, chinese milk vetch (Astragalus sinicus L.) or rapeseed (Brassica napus L.) with their above-ground parts incorporated before rice transplanting. Neither winter cropping effects nor its interaction with water-saving were significant for rice yield, although the yield after rapeseed incorporation tended to be 9 % higher than that after fallow. In 2001, 2003 and 2004, when more than 70% of irrigation water was saved in the non-flooded trial, average yield in non-flooded trial was 58 % of flooded trial, but water productivity increased (from 0.10 to 0.16 kg m -3 ). Among the 3 years, yield in non-flooded trial was highest in 2004 when the amounts of irrigation and total water supply was larger, the frequency of dry spells was the lowest, and 2 seedlings were transplanted per hill. The nitrate and nitrite concentrations in the percolating water were far below the environmental standard values by WHO. The study showed that incorporation of winter crops had no negative effects on water-saving rice production at least for the first 4 years, and that under extreme water-saving, irrigation and planting methods could minimize yield reduction.

show abstract

“…Lodging makes the rice harder to harvest and more prone to pest and disease attacks (rice plants have short roots and are especially vulnerable). Periods of flood-free soil mean the plants establish deeper roots, are better at resisting the pushes and pulls of strong winds and torrential downpours, and are more able to cope with any intense droughts that occur [36].…”

Section: * * *mentioning

confidence: 99%

Climate-Smart Rice

Reay

2019

Climate-Smart Food

View full text Add to dashboard Cite

Rice is grown in a huge range of locations across over 160 million hectares of the planet, from the cool temperate regions of Northeast Asia, through low-lying river deltas in the tropics, to lofty Himalayan mountain slopes at altitudes of over 2 kilometres. To produce each kilogram bag of Basmati rice, the climate-warming equivalent of over a kilogram of carbon dioxide (mainly in the form of methane) is also emitted. Along with some nitrous oxide from the use of nitrogen fertilisers on the fields, the life-cycle emissions can top 1.5 kilograms per kilogram. In Britain rice wastage amounts to over 40,000 tonnes each year and so the equivalent of around 60,000 tonnes of greenhouse gas emissions. Drought, flood, heat and disease are all major risks that may be exacerbated by climate change. Loss of irrigation water supplies due to melting of glaciers in the Himalayas is a major concern for rice growers in South Asia. Improved water management can give greater resilience to climate change and radically reduce methane emissions at the same time.

show abstract

Effect of Field Drainage on Root Lodging Tolerance in Direct-Sown Rice in Flooded Paddy Field

Cited by 7 publications

References 7 publications

Deep rooting conferred by DEEPER ROOTING 1 enhances rice yield in paddy fields

Deep rooting conferred by DEEPER ROOTING 1 enhances rice yield in paddy fields

Evaluation of Water-Saving Rice-Winter Crop Rotation System in a Suburb of Tokyo

Climate-Smart Rice

Contact Info

Product

Resources

About