2003
DOI: 10.1023/b:fres.0000003665.90952.0c
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Genotypic differences and some associated plant traits in potassium internal use efficiency of lowland rice (Oryza sativaL.)

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Cited by 83 publications
(66 citation statements)
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“…It is either higher K acquisition ability (the main factor of K external use efficiency) or greater K internal use efficiency in dry matter or grain yield that plays a key role in the better adaptation of crops to low K (Yang et al, 2003). EdVP1 gene improved K acquisition ability and K utilization efficiency of wheat, leading to the high grain yield in transgenic lines under low-K condition.…”
Section: Discussionmentioning
confidence: 99%
“…It is either higher K acquisition ability (the main factor of K external use efficiency) or greater K internal use efficiency in dry matter or grain yield that plays a key role in the better adaptation of crops to low K (Yang et al, 2003). EdVP1 gene improved K acquisition ability and K utilization efficiency of wheat, leading to the high grain yield in transgenic lines under low-K condition.…”
Section: Discussionmentioning
confidence: 99%
“…Its deficiency in paddy soils is becoming one of the limiting factors for increasing rice yield in Asia. A majority of the cultivated soils in southern China is deficient in K (Yang et al, 2003). It is estimated that production of one ton rice grain needs at least 14.5 kg K (Witt et al, 1999).…”
Section: Introductionmentioning
confidence: 99%
“…Potassium efficiency is defined as the plants can obtain higher dry matter yields and/or grain yields under moderate and deficient K levels, with efficient internal and external use efficiencies (Yang et al, 2003). Manipulating the genotypic differences in crop cultivars to adapt them to adverse soil conditions such as low nutrients status is one of the key strategies for the sustainable intensification of agricultural systems (Yang et al, 2004a).…”
Section: Introductionmentioning
confidence: 99%
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“…The morphology and structure of root system were adjusted for absorption of surrounding nutrients under nutrient stress [8] [9]. For example, K-efficient genotypes in rice often have larger root system than K-inefficient genotypes, which showed well-developed root, stronger absorption and large interface between root and soil [10] [11]. Higher root activity could permit crops to acquire largely nutrient from soil, especially under abiotic stress.…”
Section: Introductionmentioning
confidence: 99%