Dry matter accumulation and partitioning in cotton (Gossypium hirsutum L.) as influenced by potassium fertilization

Makhdum, M. I.; Pervez, Humayun; Ashraf, Muhammad

doi:10.1007/s00374-006-0105-6

Cited by 56 publications

(30 citation statements)

References 12 publications

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“…2b) and also reported a correlations between total biomass accumulation and seed cotton yield (r=0.980**). These results are consistent with the findings of Makhdum et al (2007) and Clement et al (2013). These results may be reported because of adequate supplies of N and K which has significant effect on plant dry matter production.…”

Section: Effect Of Fertilization Of Total Dry Mattersupporting

confidence: 93%

“…Positive relationships were found between boll number per plant and seed cotton yield(r=0.963**) and total dry matter (r=0.990**) in 2010. Makhdum et al (2007) reported positive significant correlations between seed cotton yield and total dry weight under the addition of K fertilizers in this manner results of present study are in agreement with the findings of these researchers. Negative relationships were found between micronaire and total dry matter (r= -0.882*) and boll number per plant (r= -0.986**) at K fertilization treatments in 2011.…”

Section: Correlation Coefficients At N and K Fertilization Treatmentssupporting

confidence: 93%

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Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

Görmüş¹,

A²,

Islam³

2016

JEBAS

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Effective management strategies for nitrogen (N) and potassium (K) fertilizer are important to ensure optimum yield and fiber quality of cotton production. The aim of this research was to study the influence of nitrogen and potassium application on yield and fiber quality of cotton. Study was conducted in a randomized blocks in a factorial design with three replicates. The nitrogen treatments (0, 60, 120, 180, 240 kg ha -1 ) and five K2O rates (0, 50, 100, 150, and 200 kg ha -1) are used in this study. Among the various tested combinations, the best combinations are 180 kg N ha -1 along with 150 kg K ha -1 and it produced the greatest seed cotton yieldand gin turnout. After 120 days of plantation 72% reduction in the dry weight was reported in the nitrogen deficient treatment and these plants produced only 17 bolls per plant and it was significantly different (25 bolls) than the plant treated by 180 kg N ha -1 . Significant and negative correlations were reported between boll number per plant and micronaire and total dry matter yield were found at K fertilization treatments. Positive and significant correlations were determined between gin turnout and micronaire and between fiber strength and total biomass production at N fertilization. The highest fiber strength was recorded in the plant treated by the combination of 240 kg ha -1 nitrogen and 50 kg ha -1 potassium. For fiber length and fiber strength, no significant differences were reported among the various treatments of potassium. From the results of this study it can be concluded that combination of 180 kg ha -1 nitrogen and 100 kg ha -1 potassium are suitable for the production of cotton crop.

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Section: Effect Of Fertilization Of Total Dry Mattersupporting

confidence: 93%

Section: Correlation Coefficients At N and K Fertilization Treatmentssupporting

confidence: 93%

Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

Görmüş¹,

A²,

Islam³

2016

JEBAS

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“…In other words, LG122 must be capable of increasing its root number to absorb nutrients for survival. From the data (Table 2), whether K was applied or not, the dry-matter weights of vegetative portions and reproductive portions of HG103 were steady, implying that HG103 is insensitive to K. Makhdum, Ashraf, and Pervez (2006) and Makhdum, Pervez, and Ashraf (2007) reported that K fertilization stimulated the cotton plant to translocate resources toward reproductive organs rather than vegetative organs. However, from the RVR of LG122, we can conclude that LG122 translocated more resources to the vegetative portions with K application than marginal K treatment, suggesting LG122 would continue vegetative growth as sufficient K was supplied during the growing season.…”

Section: Dry Matter and Potassium Transportation Distribution And Amentioning

confidence: 91%

“…There were many reports about using root-shoot ratio, reproductive-to-vegetative ratio, and harvest index to indicate the cotton plant growth (Makhdum, Pervez, and Ashraf 2007;Bange and Milroy 2004). However, little information was found on research using these indicators to evaluate K-use efficiency among genotypes in response to K and about the dynamic changes in cotton plant growth.…”

Section: Introductionmentioning

confidence: 98%

Differences in Growth and Potassium-Use Efficiency of Two Cotton Genotypes

Xia

Jiang

Chen

et al. 2011

Communications in Soil Science and Plant Analysis

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To study the differences in growth and potassium (K)-use efficiency of two different K-use-efficiency cotton genotypes, a pot experiment was conducted in 2007. Experimental materials include two cotton genotypes (HG103 and LG122) and two K application levels (0 and 0.23 g kg -1 soil). The initial dates of various growth stages, plant heights, numbers of leaves, squares, and bolls, and the amount of litter during the whole growing season were recorded. The distribution and accumulation of dry matter and K content in various organs were measured to compare the differences in K-use efficiency. Significant differences (P < 0.05) between the two genotypes and K levels were found in initial bolling time. At the reproductive growth stage, the plant heights and leaf number of HG103 were less than those of LG122. Greater numbers of squares and bolls were recorded from HG103 than LG122 with K application. Significant differences (P < 0.05) existed in dry matter and K contents in each organ in the two genotypes and K-application levels. The seed cotton yields of HG103 were 3.24 times larger than those of LG122 with K application and 1.77 times larger than those of LG122 with the marginal K treatments. Reproductive-to-vegetative ratios (RVR) and harvest indices (HI) of LG122 were less than those of HG103 whether K was applied or not. The ratios of K in reproductive organs to vegetative organs for LG122 were 0.47 and 0.51 with K application and the marginal treatments, respectively, and for HG103 were 0.66 and 0.75 respectively. The K accumulations in root, stem, and litter of LG122 were more than those of HG103, whereas those in leaves and bolls were less than those of HG103. These results indicated that HG103 transferred more photosynthesis products and K to cotton reproductive organs than LG122.

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“…Numerous investigators have shown that there are significant differences among various cotton varieties resulting from their morphology, physiology, and molecular mechanisms (Gossett et al, 1994;Zhang et al, 2007;Oosterhuis et al, 2013;Hassan et al, 2014). Of the work done so far, the focus remained on photosynthesis and nutrient distribution (Makhdum et al, 2007;Tsonev et al, 2011;Hu et al, 2016), but little is known about the dynamics of soil K in the rhizosphere of different cotton genotypes. To understand the differences in K uptake efficiency of different crops, underlying mechanisms have to be revealed.…”

Section: Introductionmentioning

confidence: 99%

Potassium distribution in root and non‐root zones of two cotton genotypes and its accumulation in their organs as affected by drought and potassium stress conditions

Xiao

Mohamed

Ali

et al. 2018

J. Plant Nutr. Soil Sci.

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A rhizobox experiment was conducted to compare the differences of soil potassium (K) distribution and absorption between two cotton (Gossypium hirsutum L.) genotypes under drought and K‐deficit conditions. Treatments included two levels of water (drought and optimum soil moisture: 25% and 35% volumetric water content) and K fertilizer rates (0 and 0.48 g potash kg−1 soil) applied to two cotton genotypes (namely HEG and LEG). Both the genotypes showed significant differences in total K accumulation without exogenous K addition. After absorption, soil content of the readily available potassium (RAK) decreased rapidly. This promoted the conversion of the mineral K into slowly available potassium (SAK). Drought significantly decreased the cotton growth and K use efficiency, and thereby reduced the effect of K fertilizer. Consequantly, the contents of RAK and SAK were greatly increased. However, K bioavailability was decreased under water stress conditions. Differences in root parameters and soil microorganisms between two cotton genotypes were significantly increased and had marked relations with available soil K contents. This study provides important information for understanding the mechanism of K use efficiency, especially under water and K stress.

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Dry matter accumulation and partitioning in cotton (Gossypium hirsutum L.) as influenced by potassium fertilization

Cited by 56 publications

References 12 publications

Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

Differences in Growth and Potassium-Use Efficiency of Two Cotton Genotypes

Potassium distribution in root and non‐root zones of two cotton genotypes and its accumulation in their organs as affected by drought and potassium stress conditions

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