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Plant, Soil and Environment, 2022 (vol. 68), issue 10

Fe-Mn impregnated biochar alleviates di-(2-ethylhexyl) phthalate stress in vegetative growth of wheatOriginal Paper

Ying Liu, Zhengguo Song, Linsen Bai, Xipeng Chang, Yalei Xu, Minling Gao

Plant Soil Environ., 2022, 68(10):441-450 | DOI: 10.17221/130/2022-PSE  

In this study, we examined the effects of 0.5-2% iron and manganese oxide-modified biochar (FM) as remediation to control di-(2-ethylhexyl) phthalate (DEHP) in the soil and the response of wheat at different growth stages. The application of FM and original biochar (BC) significantly reduced DEHP concentrations in wheat roots and leaves and effectively immobilised DEHP in soils at different stages, and alleviated the oxidative damage of DEHP by significantly reducing O2- and H2O2 content and increasing the activities of antioxidant enzymes, including superoxide dismutase, catalase, and ascorbate peroxidase. Moreover, photosynthetic parameters (stomatal...

Effect of phosphorus application on economic yield, quality and phosphorus utilisation efficiency of purple-fleshed sweetpotatoOriginal Paper

Ming Liu, Wenjing Fan, Rong Jin, Peng Zhao, Qiangqiang Zhang, Xiaoya Zhu, Jing Wang, Aijun Zhang, Zhonghou Tang

Plant Soil Environ., 2022, 68(10):451-458 | DOI: 10.17221/173/2022-PSE  

This study aims to explore the effect of phosphorus (P) application on the economic yield, quality, P accumulation, and P utilisation efficiency of purple-fleshed sweetpotato and to provide a basis for the P efficient utilisation and high crop yield. Field experiments were conducted in 2018-2019, and five P application rates (0, 10.9, 21.8, 32.7, and 43.6 kg P/ha, expressed as P0, P1, P2, P3, and P4, respectively) were set. The results showed that P application significantly increased the yield and commodity potato yield of purple-fleshed sweetpotato, and that of P3 treatment was the highest, followed by P2 treatment. P application also increased the...

Phosphorus requirement of barley and wheat for seed and food qualityOriginal Paper

Tobias Reineke, Diedrich Steffens

Plant Soil Environ., 2022, 68(10):459-465 | DOI: 10.17221/138/2022-PSE  

While geological phosphate reserves are continually depleting and effective phosphorus (P) recycling methods are still being developed, more efficient fertilisation of P can help to avoid unnecessary losses of this nutrient. In this way, environmental damage resulting from excessive P inputs to agricultural soils could also be reduced. The aim of this study is to identify a P concentration which is optimal for high seed quality of one cultivar of spring wheat and spring barley in addition to possessing a high nutritional value. While a critical threshold at 1.65 mg P/g grain for the studied barley cultivar has been identified, above which germination...

Growth and glucosinolate profiles of Eruca sativa (Mill.) (rocket salad) and Diplotaxis tenuifolia (L.) DC. under different LED lighting regimesOriginal Paper

Denis Stajnko, Peter Berk, Andrej Orgulan, Marko Gomboc, Damijan Kelc, Jurij Rakun

Plant Soil Environ., 2022, 68(10):466-478 | DOI: 10.17221/44/2022-PSE  

In this study, the growth and glucosinolate (GSL) profiles of rocket salad Eruca sativa (Mill.) and Diplotaxis tenuifolia (L.) DC. were determined during 30 days growing under different lighting regimes; T5_ peak at 545 nm, LED1_ peak at 631 nm and LED2_ peak at 598 nm. The biggest increase of dry weight (DW) was measured in E. sativa under T5 (0.657 g DW/plant) and the lowest in D. tenuifolia under LED1 (0.080 g DW/plant). GSL content was found to vary significantly, regardless of the light treatment, but it is related with genotype (E. sativa, r = 0.802**). On average, the highest amount of 4-methylsulfinylbutyl-GSL...

Influence of boron treatments on fatty acid desaturase metabolism in different safflower cultivarsOriginal Paper

Ekrem Bolukbasi

Plant Soil Environ., 2022, 68(10):479-486 | DOI: 10.17221/228/2022-PSE  

This study investigated the expression levels of FAD2 genes important for the conversion of oleic acid to linoleic acid at cotyledon, root and leaf tissues of four different safflower cultivars (Olas, Remzibey, Dincer and Gokturk) subjected to B by qRT-PCR. Safflower species were grown in a controlled environmental growth chamber for 21 days and then exposed to different B concentrations ranging from 20 to 1 280 μmol for 24 h. RNA isolation, cDNA synthesis and RT-PCR analysis were performed on root, cotyledon and leaf tissues exposed to B stress for 24 h. It was determined that the expression levels of FAD2 genes decreased in the safflower cultivars...

Effects of drought stress on flowering soybean physiology under different soil conditionsOriginal Paper

Qi Zhou, Shuang Song, Xin Wang, Chao Yan, Chunmei Ma, Shoukun Dong

Plant Soil Environ., 2022, 68(10):487-498 | DOI: 10.17221/237/2022-PSE  

Soybean is highly sensitive to drought stress during its flowering period. Heinong84 (HN84) and Hefeng46 (HF46) were planted in clay loam, silty loam, and sandy clay. We studied the effects of drought stress on the content of membrane lipid peroxides in flowering soybean leaves, the activity of antioxidant enzymes, and the activity of key enzymes of nitrogen metabolism under different soil conditions. Our results showed that soybean had clear physiological responses to drought stress. With increasing drought stress, the malondialdehyde, glutathione reductase, and glutathione peroxidase levels in soybean leaves increased continuously. Superoxide dismutase,...