Influence of Potassium Nutrition on Gas Exchange Characteristics and Water Relations in Cotton (Gossypium hirsutum L.)

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

doi:10.1023/b:phot.0000040597.62743.5b

Cited by 85 publications

(47 citation statements)

References 12 publications

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“…K application increases also water use efficiency (Pervez et al 2004) The enhanced CA and NR activities resulted in efficient photosynthesis and protein synthesis, which coupled with larger leaf area could furnish additional skeletons for the enhanced synthesis of metabolites, confirming the findings of Mohammad et al (1997) and Mohammad (2004).…”

supporting

confidence: 82%

Effect of K application on leaf carbonic anhydrase and nitrate reductase activities, photosynthetic characteristics, NPK and NO<sub>3</sub> contents, growth, and yield of mustard

Mohammad¹,

Naseem²

2006

Photosynt.

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supporting

confidence: 82%

Effect of K application on leaf carbonic anhydrase and nitrate reductase activities, photosynthetic characteristics, NPK and NO<sub>3</sub> contents, growth, and yield of mustard

Mohammad¹,

Naseem²

2006

Photosynt.

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“…A significant increase in all gas exchange parameters in KHCO 3 treated plants showed that KHCO 3 may minimize photosynthetic losses under drought conditions and possibly could be useful for other C 4 plants. Similar positive effect of potassium supply on g s , E and P N was obtained for Hibiscus rosa-sinensis (Egilla et al, 2005) and Gossypium hirsutum (Pervez et al, 2004).…”

Section: Resultssupporting

confidence: 75%

Effect of potassium bicarbonate on photosynthetic parameters of Setaria viridis under drought conditions

Burbulis

Vainorienė

Blinstrubienė

et al. 2017

Zemdirbyste-Agriculture

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The current study set out to investigate the effects of drought stress and potassium bicarbonate (KHCO 3 ) on green foxtail (Setaria viridis (L.) Beauv.) photosystem II (PSII) photochemistry under a moderate and severe drought. The plants at phenological stage 13 (according to BBCH scale) were divided into three groups and sprayed with water or with 10, 20 and 30 mg l -1 KHCO 3 . The plants of the first group (well-watered) were hand-watered every second day. The plants of the second (moderately stressed) and third (severely stressed) groups were used for drought stress treatment by withholding water. The results indicated that drought conditions resulted in a decrease in maximum quantum yield and effective quantum yield most likely due to the expected photoinhibition of photosystem II. Decreased gas exchange parameters revealed that the reduction in photosynthesis of green foxtail under drought stress was caused by the stomatal factors. A significant increase in the maximum quantum yield, effective quantum yield and gas exchange parameters in KHCO 3 treated plants showed that KHCO 3 protects photosystem II of green foxtail from drought, and may have potential benefit for other C 4 plants.

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“…Additionally, light affects the internal redistribution of potassium, leading to higher concentrations in sun-exposed branches than in shaded ones [65,66]. The previous studies reported that potassium plays an important role in stomatal function by maintaining turgor pressure [67]. Growth is expected to improve in response to added K as shown in sandy soils [49].…”

Section: Discussionmentioning

confidence: 99%

The Effects of Fertilization on the Growth and Physiological Characteristics of Ginkgo biloba L.

Guo

et al. 2016

Forests

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Ginkgo biloba L. is one of the most extensively planted and productive commercial species in temperate areas around the world, but slow-growth is the most limiting factor for its utilization. Fertilization is one of the key technologies for high quality and high forest yield. To better understand the impacts of fertilization on Ginkgo productivity, the effects of fertilization treatments (single fertilizer and combined fertilizer) on growth, nutrient content in Ginkgo leaves, and photosynthesis characteristics were studied in a 10-year-old Ginkgo plantation over two years. The single factor experiments suggested that DBH (diameter at breast height), H (height), NSL (length of new shoots), and V (trunk volume) showed significant differences between the different levels of single nitrogen (N) or phosphate (P) fertilizer application. Orthogonal test results showed that the nine treatments all promoted the growth of Ginkgo, and the formula (N: 400 g·tree −1 , P: 200 g·tree −1 , potassium (K): 90 g·tree −1 ) was the most effective. G s (stomatal conductance) and P n (net photosynthesis rate) showed significant differences between the different amounts of single N or P fertilizer application, while single K fertilizer only affected P n . Combined N, P, and K fertilizer had significant promoting effects on C i (intercellular CO 2 concentration), G s and P n . N and P contents in Ginkgo leaves showed significant differences between the different amounts of a single N fertilizer application. A single P fertilizer only improved foliar P contents in Ginkgo leaves. A single K fertilizer application improved N and K content in Ginkgo leaves. The effects of different N, P, and K fertilizer treatments on the nutrient content of Ginkgo leaves were different.

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Influence of Potassium Nutrition on Gas Exchange Characteristics and Water Relations in Cotton (Gossypium hirsutum L.)

Cited by 85 publications

References 12 publications

Effect of K application on leaf carbonic anhydrase and nitrate reductase activities, photosynthetic characteristics, NPK and NO<sub>3</sub> contents, growth, and yield of mustard

Effect of K application on leaf carbonic anhydrase and nitrate reductase activities, photosynthetic characteristics, NPK and NO<sub>3</sub> contents, growth, and yield of mustard

Effect of potassium bicarbonate on photosynthetic parameters of Setaria viridis under drought conditions

The Effects of Fertilization on the Growth and Physiological Characteristics of Ginkgo biloba L.

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