Physiological characteristics of high-yielding rice inferred from cross-location experiments

Horie, Takeshi; Ohnishi, Masao; Angus, J. F.; Lewin, Laurence G; Tsukaguchi, Tadashi; Matano, Toshiko

doi:10.1016/s0378-4290(96)03458-2

Cited by 100 publications

(52 citation statements)

References 10 publications

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“…This result is consistent with findings of Horie et al, (1997) and Ying et al, (1998) who mentioned that yields of hybrid rice varieties are very much unstable across environment. It is apparent form the table that grain yield gradually decreased in delayed transplanting.…”

Section: Grain Yieldsupporting

confidence: 93%

Physiological Behaviour and Yield Performances of Hybrid Rice at Different Planting Dates in Aus Season

2014

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Two field experiments were conducted in 2009 and 2010 to evaluate some physiological traits and yield of three hybrid rice varieties (BRRI hybrid dhan2, Heera2, and Tia) in comparison to BRRI dhan48 in Aus season. The experiments involved four planting dates (1 April, 16 April, 1 May and 16 May). Compared to BRRI dhan48, hybrid varieties accumulated greater shoot dry matter at anthesis, higher flag leaf chlorophyll at 2, 9, 16 and 23 days after flowering (DAF), flag leaf photosynthetic rate at 2 DAF and longer panicles. However, hybrid varieties demonstrated smaller remobilization of shoot reserve to grain and photosynthetic rate of its flag leaf at 9 and 16 DAF than BRRI dhan48. Heera2 and BRRI hybrid dhan2 maintained significantly higher chlorophyll a:b ratio over Tia and BRRI dhan48 at 2, 9, 16 and 23 DAF in their flag leaf. Shoot reserve remobilization to grain exhibited higher degree of sensitivity to rising of minimum temperature in the studied hybrids compared to the inbred. Inefficient photosynthetic activities of flag leaf and poor shoot reserve translocation to grain resulted poor grain filling percentage in the test hybrids. Consequently the studied hybrids showed significantly lower grain yield (ca. 36.7%) as compared to inbred BRRI dhan48, irrespective of planting date in Aus season.

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Section: Grain Yieldsupporting

confidence: 93%

Physiological Behaviour and Yield Performances of Hybrid Rice at Different Planting Dates in Aus Season

2014

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“…The actual spikelet number per unit area is the difference between the number of spikelets that differentiate and degenerate. Rice generally differentiates excess spikelets, depending on previous N uptake (Wada, 1969;Akita, 1989;Hasegawa et al, 1994;Horie et al, 1997). The spikelets then degenerate during the 2-week period preceding full heading, depending on the availability of carbohydrates (Matsushima, 1957;Wada, 1969).…”

Section: Yield Potential Increase Of Rice Genotypesmentioning

confidence: 99%

“…Generally, the contribution of NSC stored before heading for fi nal grain yield is about 30% (Cock and Yoshida, 1972;Akita, 1989). However, much evidence has been accumulated to indicate that NSC accumulated before the onset of grain-fi lling plays a more important role in rice grain-fi lling than merely compensation for a shortage of assimilates during the grain-fi lling (Takeda et al, 1980;Seo and Ota, 1983;Akita, 1989;Nakamura et al, 1992;Sumi et al, 1996;Tsukaguchi et al, 1996; Horie et al, 1997). It is reported for rice (Nakamura et al, 1992) and wheat (Radley, 1978;Signh and Jenner, 1984;Feught and Hofner, 1985) that fi nal grain size is closely related to endosperm cell number, which in turn is controlled by the supply of substrate during its formation.…”

Section: Yield Potential Increase Of Rice Genotypesmentioning

confidence: 99%

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

Horie¹,

Shiraiwa²,

Homma³

et al. 2005

Plant Production Science

169

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“…Recently, so-called super-rice cultivars or hybrids have been released in China, which have shown a markedly high yield potential when planted in the special areas (Amano et al, 1996;Cheng and Min, 2001). However, these super-rice cultivars or hybrids are commonly characterized by unstable yields across environments (locations and years) (Horie et al, 1997;Ying et al, 1998). Therefore, it is imperative to clarify the responses of their growth and yield formation to environments.…”

Section: Introductionmentioning

confidence: 99%

“…Horie et al(1997) suggested the importance of increasing sink size and radiation use efficiencies during grain filling. Ying et al(1998) reported that further improvement in rice yield potential depended more on the ability of increasing biomass production than on that of increasing harvest index (HI).…”

Section: Introductionmentioning

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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Physiological characteristics of high-yielding rice inferred from cross-location experiments

Cited by 100 publications

References 10 publications

Physiological Behaviour and Yield Performances of Hybrid Rice at Different Planting Dates in Aus Season

Physiological Behaviour and Yield Performances of Hybrid Rice at Different Planting Dates in Aus Season

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

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

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