Quantifying the Interactive Effect of Leaf Nitrogen and Leaf Area on Tillering of Rice

Zhong, Xuhua; Peng, Shaobing; Sanico, Arnel L.; Liu, Hongxian

doi:10.1081/pln-120020365

Cited by 43 publications

(25 citation statements)

References 13 publications

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“…Yoshida (1973) suggested that tillering of rice plants should be considered in relation to light intensity, temperature and carbohydrate metabolism. Zhong et al (2003) reported that tillering rate increased linearly as leaf nitrogen concentration increased in rice plants under different nitrogen treatments and suggested that the leaf nitrogen concentration should be considered in predicting the number of tillers in the rice crop.…”

mentioning

confidence: 99%

Yield Component Differences between Direct-Seeded and Transplanted Super Hybrid Rice

Huang

Zou

Jiang

et al. 2011

Plant Production Science

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mentioning

confidence: 99%

Yield Component Differences between Direct-Seeded and Transplanted Super Hybrid Rice

Huang

Zou

Jiang

et al. 2011

Plant Production Science

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“…The later top-dressing N application amounts were the same with the CK mode, which might be enough for the rice plant demand during the later growing stages (Kamiji et al, 2011;Sui et al, 2013). Further decrease in basal N application might have significantly inhibited rice tillering (Zhong et al, 2003), which couldn't be compensated by the increase in planting density.…”

Section: Discussionmentioning

confidence: 99%

Effects of Dense Planting with Less Basal N Fertilization on Rice Yield, N Use Efficiency and Greenhouse Gas Emissions

Zhu¹,

Wang²,

Li³

et al. 2015

IJAB

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Rice cropping innovations for high yield with high N use efficiency (NUE) and low greenhouse gas (GHG) emissions are significant in ensuring food security and coping with climate change. The objective of this study was to investigate the comprehensive effects of dense planting with less basal N application (DR) on rice yield, NUE and GHG emissions. Field experiments were conducted at three sites in China: Shenyang, Danyang and Jinxian representing annual single rice cropping system, wheat-rice cropping system and double rice cropping system, respectively. Four planting densities with 25, 50, 75 and 100% higher each time correspondingly with about 25, 50, 75 and 100% less in basal N rate (i.e., DR1, DR2, DR3 and DR4 correspondingly) relative to traditional cropping for high yield (CK). Across three tested sites, the DR1 mode showed a large potential of NUE enhancement by 19.6% and GHG emissions mitigation by 12.2% at area-and yield-scaled with similar rice yield compared to the CK. However, further increase in planting density and decrease in basal N application caused a significant reduction in rice yield with a large increase in GHG emissions. Our results will provide important reference to rice cropping innovations for the integrated goals of food security, environmental health and climate change mitigation in China.

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“…On the other hand, the stem acts as an important storage organ and affects yield formation by accumulating biomass (Katsura et al, 2007). It has been shown that N concentration in rice plants is an important factor affecting tiller initiation and higher N concentration enhances tillering and stem development (Weerakoon et al, 1999;Zhong et al, 2003). Thus more N accumulation at mid-tillering stage means greater tillering capacity and better stem development.…”

Section: Discussionmentioning

confidence: 99%

Characterization of high-yield performance as affected by genotype and environment in rice

Song

Zeng

Pao

et al. 2008

J. Zhejiang Univ. Sci. B

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Abstract:We characterized yield-relevant characters and their variations over genotypes and environments (locations and years) by examining two rice varieties (9746 and Jinfeng) with high yield potential. 9746 and Jinfeng were planted in two locations of Shanghai, China, during 2005 and2006. The results show that there was a large variation in grain yield between locations and years. The realization of high yield potential for the two types of rice was closely related to the improved sink size, such as more panicles per square meter or grains per panicle. Stem and leaf biomasses were mainly accumulated from tillering stage to heading stage, and showed slow decline during grain filling. Meanwhile, some photosynthetic characters including net photosynthesis rate (P n ), leaf area index (LAI), specific leaf area (SLA), fluorescence parameter (maximum quantum yield of PSII, F v /F m ), chlorophyll content (expressed as SPAD value), as well as nutrient (N, P, K) uptake were also measured to determine their variations over genotypes and environments and their relationships with grain yield. Although there were significant differences between years or locations for most measurements, SLA at tillering and heading stages, F v /F m and LAI at heading stage, stem biomass at heading and maturity stages, and leaf nitrogen concentration at tillering and heading stages remained little changed, indicating their possible applications as selectable characters in breeding programs. It was also found that stem nitrogen accumulation at tillering stage is one of the most important and stable traits for high yield formation.

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Quantifying the Interactive Effect of Leaf Nitrogen and Leaf Area on Tillering of Rice

Cited by 43 publications

References 13 publications

Yield Component Differences between Direct-Seeded and Transplanted Super Hybrid Rice

Yield Component Differences between Direct-Seeded and Transplanted Super Hybrid Rice

Effects of Dense Planting with Less Basal N Fertilization on Rice Yield, N Use Efficiency and Greenhouse Gas Emissions

Characterization of high-yield performance as affected by genotype and environment in rice

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