Canola genotypes differ in potassium efficiency during vegetative growth

Damon, Paul; Osborne, L.D.; Rengel, Zed

doi:10.1007/s10681-007-9388-4

Cited by 48 publications

(32 citation statements)

References 24 publications

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“…There was no significant difference in seed yield with application of 60 and 90 kg K ha −1 . Similarly, in earlier research, application of K fertilizer increased number of pods plant −1 and seed weight (Khan, 2004) and seed yield (Damon et al, 2007). In contrast to our results, Govahi and Saffari (2006) reported that K application had no significant effects on plant height, number of pods plant −1 , TSW and seed yield of rapeseed.…”

Section: Response To Applied K Ratesupporting

confidence: 60%

“…In our study, the variation in yield and yield components response of G × K interaction was most likely due to the differences in their growth rate, yield potential, rooting pattern, and genetic make-up. Damon et al (2007) also reported that Brassica genotypes responded differently to K availability. They reported that the potential mechanisms for genotypic variation in K efficiency depends on: i) the effectiveness in taking up nutrients from the soil (uptake efficiency) and/or ii) the efficiency with which nutrients are used within the plant to produce yield (utilization efficiency).…”

Section: Impact Of G × K Interactionmentioning

confidence: 91%

“…Rape and mustard are sensitive to sulfur (S) and potassium (K) supply, and poor yields and quality are obtained on S and K deficient soils Gill, 2002, 2006;Grant et al, 2003;Damon et al, 2007;Malhi et al, 2007). Variations in seed yield of rape and mustard with K and S have been earlier reported by various researchers in different parts of the world (Misra, 2003;Ahmad et al, 2007;Fismes et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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SEED YIELD AND YIELD COMPONENTS RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZER APPLICATION IN NORTHWEST PAKISTAN

Amanullah¹,

Hassan²,

Malhi³

2011

Journal of Plant Nutrition

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2 Improper sulfur (S) and potassium (K) fertilizer management, particularly with continued soil nutrient mining, is one of the major factors contributing to low seed yield of canola in northwestern Pakistan. A field experiment was conducted in 2007−2008 on a S and K deficient clay loam soil at the Research Farm of NWFP (Northwest Frontier Province) Agricultural University, Peshawar, Pakistan, with an objective to determine seed yield and yield components response of Brassica oilseed rape versus mustard to S and K application. Twenty treatments in a randomized complete block design were consisted of two oilseed rape (B. napus canola) and mustard (B. juncea canola) genotypes at three rates each of S (15, 30, and 45 kg S ha −1 ) and K (30, 60, and 90 kg K ha −1 ) fertilizers plus one control (no S and K applied). Seed yield and yield components increased significantly with K and S fertilization as compared to the zero-S/zero-K control. Both genotypes responded positively for seed yield and yield components to K and S fertilization, but the magnitude of response varied with levels of S and K, as well as combined K + S applications. It is concluded that a combination of 60 kg K + 30 kg S ha −1 would improve seed yield and yield components of rape and mustard in the study area and contribute significantly to increased production. Growing B. napus was better than B. juncea in the study area, because B. napus produced significantly higher seed yield and yield components than B. juncea, indicating that yield components are the most important criteria for selection of Brassica genotypes for higher seed yield.

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Section: Response To Applied K Ratesupporting

confidence: 60%

Section: Impact Of G × K Interactionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

SEED YIELD AND YIELD COMPONENTS RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZER APPLICATION IN NORTHWEST PAKISTAN

Amanullah¹,

Hassan²,

Malhi³

2011

Journal of Plant Nutrition

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“…It has been well documented that there is a dramatic difference in K use efficiency among plant species or genotypes within a species [10][11][12], indicating that K nutrition in plants is a genetically controlled trait, and can be improved by genetic manipulation. However, a narrower genetic diversity in cultivated barley has become a bottleneck for genetic improvement [13].…”

Section: Introductionmentioning

confidence: 99%

Identification of the proteins associated with low potassium tolerance in cultivated and Tibetan wild barley

Zeng

Quan

et al. 2015

Journal of Proteomics

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“…Oilseed crops, such as rape and mustard, are sensitive to sulfur (S) and/or potassium (K) deficiency, and poor yields and quality are obtained on S and K deficient soils (Damon et al, 2007;Malhi et al, 2007). Variation in seed quality of rape and mustard with K and S has been earlier reported by various researchers in different parts of the world (Misra, 2003;Ahmad et al, 2007;Fismes et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

PHENOLOGY AND SEED QUALITY RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZATION IN NORTHWEST PAKISTAN

Amanullah

Hassan

Malhi

2011

Journal of Plant Nutrition

View full text Add to dashboard Cite

2 Inappropriate sulfur and potassium fertilization, particularly with continued soil nutrient mining and yearly fluctuations in rainfall, are major factors contributing to slow growth and low seed quality of canola in northwestern Pakistan. A field experiment was conducted in 2007 -2008 on a sulfur (S) and potassium (K) deficient clay loam soil under irrigation at the research farm of NWFP (Northwest Frontier Province) Agricultural University, Peshawar, Pakistan, with an objective to determine response of phenology and seed quality of Brassica oilseed rape versus mustard to S and K fertilizer application. Twenty treatments in a randomized complete block design were consisted of two oilseed genotypes [rape (B. napus canola) and mustard (B. juncea canola)], at three rates each of S (15, 30, and 45 kg S ha −1 ) and K (30, 60, and 90 kg K ha −1 ), plus control (no K and S applied). Days to flowering, pod formation, seed filling duration and maturity were enhanced with K and S fertilization compared to control plots. The species B. napus took more time to flowering, pod formation, seed filling duration and maturity compared to B. juncea. Both genotypes responded positively for seed quality (oil and protein content) to K and S fertilization, but the magnitude of response varied with level and combination of K and S fertilization. Delay in the phenological stages showed negative relationship with oil and protein content in seed of both genotypes. It is concluded that a combination of 60 kg K ha −1 + 30 kg S ha −1 would accelerate phenological development and improve seed quality of rape and mustard in the study area.

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Canola genotypes differ in potassium efficiency during vegetative growth

Cited by 48 publications

References 24 publications

SEED YIELD AND YIELD COMPONENTS RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZER APPLICATION IN NORTHWEST PAKISTAN

SEED YIELD AND YIELD COMPONENTS RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZER APPLICATION IN NORTHWEST PAKISTAN

Identification of the proteins associated with low potassium tolerance in cultivated and Tibetan wild barley

PHENOLOGY AND SEED QUALITY RESPONSE OF RAPE (B. NAPUS) VERSUS MUSTARD (B. JUNCEA) TO SULFUR AND POTASSIUM FERTILIZATION IN NORTHWEST PAKISTAN

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