Paper · 2004 · Journal of Plant Nutrition

Influence of Potassium Rates and Sources on Seed Cotton Yield and Yield Components of Some Elite Cotton Cultivars

H. Pervez; M. Ashraf; M. I. Makhdum

11
claims
19
verbatim quotes
55
citations
2
research areas
—
Not open access

Abstract

Abstract A field experiment was conducted at Central Cotton Research Institute, Multan, Pakistan on Miani soil series, silt loam soil (Calcaric, Cambisols and fine silty, mixed Hyperthermic Fluventic Haplocambids) to assess the response of four cotton (Gossypium hirsutum L.) cultivars to potassium (K) fertilization. The treatments consisted of four cotton cultivars (CIM-448, CIM-1100, NIAB-Karishma, S-12), four potassium rates (0, 62.5, 125, 250 kg K ha−1), and two sources of potassium fertilizer [muriate of potash (KCl) and sulphate of potash (K2SO4)]. The cotton cultivars differed significantly in response to various potassium fertilizer levels and its sources with respect to seed cotton yield and its components. The highest yield was obtained with the application of 250-kg K ha−1, however, it was economical to add 125 kg K ha−1. Seed cotton yield of cv. CIM-448 was considerably greater than that of the other cultivars in K-unfertilized treatments, which was related to cultivar differences in K uptake efficiency in utilizing native potassium nutrient. Potassium added as muriate of potash caused a significant depression in seed cotton yield than that of sulphate of potash. The increase in yield seemed to have resulted largely from the higher K concentration of leaf tissues at bloom stage and available soil-K because of potassium application. A significant relationship between the yield and number of bolls per plant (r = 0.92**) and boll weight (r = 0.85**) indicated that these two growth attributes were responsible for enhancing the quantum of final harvest of seed cotton.

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Claims 11

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Cotton cultivars responded differently to potassium rates and sources for yield and components.

Material
cotton cultivarse0
Treatment
potassium fertilizer levels and its sourcese0
Outcome
seed cotton yield and its componentse0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The cotton cultivars differed significantly in response to various potassium fertilizer levels and its sources with respect to seed cotton yield and its components.”

✓ located verbatim in the source · abstract, characters 560–724 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest yield occurred with 250-kg K ha−1.

Treatment
250-kg K ha−1e0
Outcome
yielde0
Direction
higheste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest yield was obtained with the application of 250-kg K ha−1, however, it was economical to add 125 kg K ha−1.”

✓ located verbatim in the source · abstract, characters 725–843 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Applying 125 kg K ha−1 was economical.

Outcome
economical to add 125 kg K ha−1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest yield was obtained with the application of 250-kg K ha−1, however, it was economical to add 125 kg K ha−1.”

✓ located verbatim in the source · abstract, characters 725–843 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

CIM-448 had considerably greater seed cotton yield than other cultivars without K fertilizer.

Material
CIM-448e0
Outcome
Seed cotton yielde0
Direction
greatere0
Qualifier
K-unfertilized treatmentse0
Comparator
other cultivarse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed cotton yield of cv. CIM-448 was considerably greater than that of the other cultivars in K-unfertilized treatments, which was related to cultivar differences in K uptake efficiency in utilizing native potassium nutrient.”

✓ located verbatim in the source · abstract, characters 844–1069 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors related the cultivar yield difference to K uptake efficiency.

Material
CIM-448e0
Outcome
cultivar differences in K uptake efficiencye0
Qualifier
utilizing native potassium nutriente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed cotton yield of cv. CIM-448 was considerably greater than that of the other cultivars in K-unfertilized treatments, which was related to cultivar differences in K uptake efficiency in utilizing native potassium nutrient.”

✓ located verbatim in the source · abstract, characters 844–1069 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Muriate of potash significantly depressed seed cotton yield compared with sulphate of potash.

Treatment
muriate of potashe0
Outcome
seed cotton yielde0
Direction
depressione0
Comparator
sulphate of potashe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Potassium added as muriate of potash caused a significant depression in seed cotton yield than that of sulphate of potash.”

✓ located verbatim in the source · abstract, characters 1070–1192 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Higher leaf K concentration at bloom was proposed to explain the yield increase after potassium application.

Organ / stage
leaf tissues at bloom stagee0
Treatment
potassium applicatione0
Outcome
increase in yielde0
Qualifier
higher K concentration of leaf tissuese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The increase in yield seemed to have resulted largely from the higher K concentration of leaf tissues at bloom stage and available soil-K because of potassium application.”

✓ located verbatim in the source · abstract, characters 1193–1364 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Available soil K was proposed to explain the yield increase after potassium application.

Treatment
potassium applicatione0
Outcome
increase in yielde0
Qualifier
available soil-Ke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The increase in yield seemed to have resulted largely from the higher K concentration of leaf tissues at bloom stage and available soil-K because of potassium application.”

✓ located verbatim in the source · abstract, characters 1193–1364 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Yield was significantly related to bolls per plant, with r = 0.92**.

Organ / stage
bolls per plante0
Outcome
yielde0
Value
r = 0.92**e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A significant relationship between the yield and number of bolls per plant (r = 0.92**) and boll weight (r = 0.85**) indicated that these two growth attributes were responsible for enhancing the quantum of final harvest of seed cotton.”

✓ located verbatim in the source · abstract, characters 1365–1600 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Yield was significantly related to boll weight, with r = 0.85**.

Organ / stage
boll weighte0
Outcome
yielde0
Value
r = 0.85**e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A significant relationship between the yield and number of bolls per plant (r = 0.92**) and boll weight (r = 0.85**) indicated that these two growth attributes were responsible for enhancing the quantum of final harvest of seed cotton.”

✓ located verbatim in the source · abstract, characters 1365–1600 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors inferred that boll number and weight enhanced the final seed cotton harvest.

Outcome
final harvest of seed cottone0
Qualifier
these two growth attributese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A significant relationship between the yield and number of bolls per plant (r = 0.92**) and boll weight (r = 0.85**) indicated that these two growth attributes were responsible for enhancing the quantum of final harvest of seed cotton.”

✓ located verbatim in the source · abstract, characters 1365–1600 · show in text ↑
t0

“Seed Cotton Yield”

✓ located verbatim in the source · title, characters 44–61 · show in text ↑

potassium chloride · yield · Gossypium hirsutum (cotton)Results differ

13 papers: 11 positive, 2 negative or no effect

1 paper in the same direction as this paper · 11 in the opposite direction

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.