Effect of different levels of nitrogen, phosphorus, and potassium on root activity and chlorophyll content in leaves of Brassica oleracea seedlings grown in vegetable nursery substrate

Zhang, Jian; Wu, Yan; Wang, Pengcheng; Zhang, Qi an; Yan, Chao‐Guo; Yu, Feifei; Yi, Jianqun; Fang, Ling

doi:10.1007/s13580-017-0177-2

Cited by 30 publications

(19 citation statements)

References 26 publications

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“…Unlike the case with low soil fertility status, nutrient absorption has not been able to increase chlorophyll levels in the leaves of the three clones. Several studies reported that several nutrients play an important role in the increase and degradation of chlorophyll, including nitrogen (Zang et al 2017), phosphorus (Sannazzaro et al 2006;Jiang et al 2007;Colla et al 2008);potassium (Percy et al 2016;Zao et al 2016;Hu et al 2017;Zang et al 2017;) and boron (Kitir et al 2018;Hagazi et al 2018).…”

Section: Leaf Nutrient Content (G G -1 Dw) and Physiological Activitymentioning

confidence: 99%

“…They affect the photosynthetic activity in leaves and biochemical activity in fruits. In addition to the soil fertility, clone seems to be one of the important things to take into consideration because the response of the clones to the environment will determine the level of cherelle wilt in cocoa (Prawoto et al 2015). This study was conducted to confirm the aforementioned statements, especially regarding the limiting factors for cherelle wilt, and the role of soil fertility, especially the role of the elements P, K, and Boron in lowering the ratio of cherelle wilt and the response of each clone to cherelle wilt in each respective soil fertility status.…”

Section: Introductionmentioning

confidence: 99%

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Physiological, biochemical activities of cherelle wilt on three cocoa clones (Theobroma cacao) under two levels of soil fertilities

Yudono

Putra

et al. 2019

Biodiversitas

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Abstract. Dewi HS ES, Ydono P, Putra ETS, Purwanto BH. 2020. Physiological, biochemical activities of cherelle wilt on three cocoa clones (Theobroma cacao) under two levels of soil fertilities. Biodiversitas 21: 187-194. Cherelle wilt is one of the diseases caused by physiological disorders. It results in loss of young pods by 70-90%. This study aims to reveal the correlation of physiological, biochemical activities of several cocoa clones with two soil fertility status. The study was conducted using a nested design with two blocks as replications. The soil fertility status was classified based on soil chemical status. This obtained two clusters of soil fertility, namely low soil fertility, high soil fertility. The second factor was cocoa clone, consisting of three clones, namely RCC 70, RCC 71, KKM 22. Variables measured were soil character, biochemistry of fresh, wilting cherelles, physiological activities, cherelle wilt, biochemical activities including sucrose content, reducing sugar, invertase activity. The data obtained were analyzed for their variance (ANOVA) with a 95% confidence level, tested using Tukey’s HSD there were significant differences between treatments. The results showed that high soil fertility status could increase contents of N, P, K, boron in leaves, increase nitrate reductase activity, chlorophyll contents, increase photosynthesis rate, suppress transpiration rate, increase assimilate transport from leaves to cherelle, increase enzyme invertase activity. RCC 70 clone indicated better physiological, biochemical activity, had the smallest percentage of cherelle wilt. Soil fertility status can suppress cherelle wilt by up to 60% through increasing physiological, biochemical activity. The RCC 70 clone shows the lowest cherelle wilt values compared to RCC 71, KKM 22 clones.

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Section: Leaf Nutrient Content (G G -1 Dw) and Physiological Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physiological, biochemical activities of cherelle wilt on three cocoa clones (Theobroma cacao) under two levels of soil fertilities

Yudono

Putra

et al. 2019

Biodiversitas

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“…The third important factor that influences cotton yield and fertilization efficiency is P. A previous report indicated that increases in soil P were positively correlated with leaf area index, and a decrease in photosynthesis and biomass under P deficiency conditions (Zhang et al., 2017). Interactions between N and P, where the availability of one affects the uptake of the other, have been suggested.…”

Section: Introductionmentioning

confidence: 99%

Effects of reduced nitrogen application rate on drip‐irrigated cotton dry matter accumulation and yield under different phosphorus and potassium managements

Liu

Wen

et al. 2021

Agronomy Journal

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To elucidate effects of reduced N application rate on dry matter accumulation and yield of drip-irrigated cotton (Gossypium hirsutum L.) under different phosphorus and potassium managements (PK-Ms), field studies with four reduced N application rates and four PK-Ms were conducted in 2018 and 2019. Results show that after early peak boll-forming (PB) stage, the leaf area (LA) in N3PK-M3 was the highest among all treatments. The net assimilation rate (NAR), crop growth rate (CGR), boll dry weight (BDW), and boll growth rate (BGR) were highest in N2, followed by N3 with insignificant differences, and those parameters in PK-M3 were the highest.The reproductive/vegetative biomass ratio (RVR) for N3PK-M3 was the highest. The CGR, BDW, BGR, and NAR for N3PK-M3 were insignificantly lower than those for N2PK-M3, which increased yield in N2PK-M3 and N3PK-M3 treatments. Correlation analysis showed that BGR was positively related with CGR and NAR from peak flowering (PF) stage to boll opening (BO) stage, and CGR was significantly correlated with NAR and LA from PF to BO stage, and BO stage, respectively. Moreover, the yield was positively correlated with boll weight (BW) and boll number (BN), and BGR was significantly correlated with BN and BW from peak squaring stage to late PB stage. Therefore, high yield in N3PK-M3 due to higher value in LA after bollforming stage, with higher NAR, CGR, RVR, and BGR, suggesting that early boll formation and successive partitioning of dry matter in boll growth were important factors for yield formation.

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“…Except for root morphology, K uptake kinetic parameters, root bleeding-sap, and root vigor are also demonstrated as effective parameters in evaluating K uptake e ciency (Teo et al, 1992;Hao et al, 2015;Cui et al, 2016;Zhang et al, 2017). Su cient potassium can increase plant hydraulic conductance and transpiration (Pettigrew, 2008).…”

Section: Introductionmentioning

confidence: 99%

Root K affinity drivers and photosynthetic characteristics in response to low potassium stress in K high-efficiency vegetable soybean

Liu

Wang

et al. 2021

Preprint

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Aims Vegetable soybean is highly demanded on potassium (K) application. Significant variations of K absorption and utilization exist in vegetable soybean. This study aim at exploring mechanisms of K absorption and utilization of high-efficiency in vegetable soybean by studying the characteristics of root K affinity-associated drivers and photosynthesis in vegetable soybean (edamame) (Glycine max (L.) Merr.).Methods Pot and hydroponic experiments were carried out to examine the characteristics of root K affinity-associated drivers and photosynthesis in vegetable soybean genotypes with different K efficiency. Two K high-efficiency vegetable soybean genotypes and two K low-efficiency genotypes were investigated in low K and normal K conditions. Results The root of K high-efficiency genotypes had a higher K+ affinity associated with higher maximum K+ uptake rate (Imax), but lower Michaelis constant for K+ absorption (Km) and lower compensation concentration for K+ uptake (Cmin). Seedlings of K high-efficiency genotypes also had higher root vigor (TTC reduction method) and greater absorbing activity (methylene blue method), especially in the low K condition. Besides, the root bleeding-sap rate per root length and K upward fluxes rate per root length of K high-efficiency genotypes in beginning seed stage were consistently higher than that of K low-efficiency genotypes. The root of K high-efficiency vegetable soybean genotypes exhibits K+ high-affinity and driving advantages. Photosynthetic parameters of K high-efficiency vegetable soybean genotypes were less affected by low K stress. Low K stress decreased the net photosynthetic rate of K high-efficiency genotypes by 6.1~6.9%, while that of K low-efficiency genotypes decreased by 10.9~15.7%. The higher Chl a/b ratio with enhanced relative content of Chl a in response to low K stress might be an adapted mechanism for K high-efficiency genotypes to maintain photosynthetic capacity.Conclusion Stronger root K affinity drivers associated with photosynthetic adaptability to low potassium stress are the key factors in determining the K high-efficiency of vegetable soybeans.

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Effect of different levels of nitrogen, phosphorus, and potassium on root activity and chlorophyll content in leaves of Brassica oleracea seedlings grown in vegetable nursery substrate

Cited by 30 publications

References 26 publications

Physiological, biochemical activities of cherelle wilt on three cocoa clones (Theobroma cacao) under two levels of soil fertilities

Physiological, biochemical activities of cherelle wilt on three cocoa clones (Theobroma cacao) under two levels of soil fertilities

Effects of reduced nitrogen application rate on drip‐irrigated cotton dry matter accumulation and yield under different phosphorus and potassium managements

Root K affinity drivers and photosynthetic characteristics in response to low potassium stress in K high-efficiency vegetable soybean

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