Effect of foliar application of the selenium-rich nutrient solution on the selenium accumulation in grains of Foxtail millet (Zhangzagu 10)

Author(s):  
Xiaojun Li ◽  
Jingjing Sun ◽  
Wenshuan Li ◽  
Zongqiang Gong ◽  
Chunyun Jia ◽  
...  
Weed Science ◽  
1977 ◽  
Vol 25 (5) ◽  
pp. 390-395 ◽  
Author(s):  
W.G. Steinert ◽  
J.F. Stritzke

Differences in the phytotoxicity of tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimehtylurea) to nine plant species were observed on the basis of calculated GR50values. Japanese brome (Bromus japonicusThunb.) with a GR50value of 0.016 ppmw was the most susceptible and corn (Zea maysL. ‘Gold Rush’) with a GR50value of 0.436 ppmw the least susceptible. There was some growth suppression with foliar application but primary activity on all species was attributed to root uptake. The most significant translocation of labeled tebuthiuron was to the tops of common ragweed (Ambrosia artemisiifoliaL.) plants treated through the nutrient solution where 24.5% of the total amount recovered was detected after 24 h. Only 7.3% of the total amount recovered was detected in the top of rye (Secale cerealeL. ‘Elbon’) plants with the same treatment. With both species, more than 90% of the radioactivity recovered following foliar treatments was still in the treated leaf after 24 h. Less than 5.5% of the recovered activity for both species was in the tops, less than 3% in the roots, and less than 1.5% was in the nutrient solution.


1994 ◽  
Vol 4 (3) ◽  
pp. 329-333 ◽  
Author(s):  
A. T. Modi ◽  
A. L. P. Cairns

AbstractWheat which was grown in acid-washed sand and irrigated with a molybdenum-free nutrient solution was treated with various concentrations of molybdenum (Mo) as a foliar spray at the flag leaf stage. At maturity, dormancy levels and abscisic acid (ABA) content of the seed were determined. Seed dormancy and ABA content increased with increasing rates of Mo application. In a field experiment, wheat (cv. SST 66) was treated with 100 ppm Mo by foliar application at the flag leaf stage. Embryos were tested for sensitivity to exogenously applied ABA. Embryos from Mo-treated plants showed enhanced sensitivity to ABA-induced inhibition of germination. The Mo application also resulted in significantly higher levels of endogenous ABA and Mo in the seeds. It is postulated that Mo deficiency leads to a lack of dormancy in wheat via reduced synthesis of ABA.


HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 544-546 ◽  
Author(s):  
Jon R. Johnson

The collard (Brassica oleracea, Acephala group) cultivar Vates was more susceptible than `Blue Max' to tipburn in sand-culture and field studies. Calcium concentrations in young leaves were similar for both cultivars. `Blue Max' appears to require a lower Ca concentration in young leaves than `Vates' for normal growth. In sand-culture studies, increasing the Ca level in nutrient solution to 3 mm or higher decreased tipburn in `Vates'. `Blue Max' did not develop tipburn regardless of Ca level. Increasing the Ca level in nutrient solution increased Ca concentration in young and old leaves for both cultivars. Soil application of CaSO4 or foliar application of Ca(NO3)2 or CaCl2 did not decrease occurrence of tipburn in Yates', presumably because these treatments did not increase Ca concentrations in young leaves.


2021 ◽  
Author(s):  
Marcilene Machado dos Santos Sarah ◽  
Renato de Mello Prado ◽  
Jonas Pereira de Souza Júnior ◽  
Gelza Carliane Marques Teixeira ◽  
João Carlos dos Santos Duarte ◽  
...  

Abstract Potassium (K) deficiency affects physiological performance and decreasing vegetative growth in common bean plants. However, silicon (Si) supplied via nutrient solution or foliar application may relieve nutritional stress. Thus, two experiments were carried out: initially, a test was performed to determine the best source and concentration of leaf-applied Si. Subsequently, the chosen Si source was applied via nutrient solution or via leaf to verify if it is efficient in alleviating the effects caused by K deficiency. To that end, a completely randomized 2 x 3 factorial design was used, with two levels of K: deficient (0.2 mmol L− 1 of K) and sufficient (6 mmol L− 1 of K); and Si: via nutrient solution (2 mmol L− 1 of Si) or foliar spray (5.4 mmol L− 1 of Si) and control (0 mmol L− 1 of Si). In the first experiment, foliar spraying with sodium silicate and stabilized potassium at a concentration of 5.4 mmol L− 1 was better in favoring the physiology of bean plants. In the second experiment, K deficiency without the addition of Si compromised the plant's growth. Si applied through nutrient solution or foliar spray relieved K deficiency stress, increasing chlorophylls and carotenoids content, photosynthetic activity, water use efficiency and vegetative growth.


Weed Science ◽  
1985 ◽  
Vol 33 (5) ◽  
pp. 612-617 ◽  
Author(s):  
Jeffrey F. Derr ◽  
Thomas J. Monaco ◽  
Thomas J. Sheets

The butyl ester of fluazifop {[(±)-2-[4-[[5-trifluoromethyl)-2-pyridinyl] oxy] phenoxy)propanoic acid} at 0.26 μM in nutrient solution inhibited root growth of hydroponically grown goosegrass (Eleusine indicaGaertn. ♯ ELEIN), large crabgrass [Digitaria sanguinalis(L.) Scop. ♯ DIGSA], and giant foxtail (Setaria faberiHerrm. ♯ SETFA). Treating the soil and plant foliage at 0.035 or 0.07 kg ai/ha did not result in greater phytotoxicity than exposing only the foliage of each grass to the herbicide. Foliar-applied fluazifop was retained on the foliage in similar amounts by each of the species. Translocation of14C to all plant parts was detected 6 h after foliar application of the butyl ester of14C-fluazifop to the grasses in the pretillering or tillering stage. The majority (90%) of14C absorbed by each of the species remained in the treated leaf. In hydroponic studies, each species exuded14C into nutrient solution following foliar application of the14C-labeled herbicide. The exuded material was predominantly fluazifop with small amounts of compounds more polar than the butyl ester of fluazifop. Uptake and translocation studies suggest that the greater sensitivity of goosegrass to fluazifop may be related to higher concentrations of the herbicide present in plant tissue.


Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 249 ◽  
Author(s):  
Petronia Carillo ◽  
Giuseppe Colla ◽  
Christophe El-Nakhel ◽  
Paolo Bonini ◽  
Luisa D’Amelia ◽  
...  

The emerging role of plant biostimulants in enhancing nutrient efficiency is important for maintaining soil fertility under sub-optimal nutrient regimens. We aimed to elucidate the morpho-physiological and biochemical effects as well as mineral composition changes of greenhouse jute (Corchorus olitorius L.) treated with a commercial vegetal-derived biostimulant from a tropical plant extract (PE; Auxym®, Italpollina, Rivoli Veronese, Italy). Plants were sprayed in weekly intervals with a solution containing 2 mL·L−1 PE. Jute plants were supplied with three nutrient solution concentrations: full-, half-, and quarter-strength. Decreasing macronutrient concentrations in the nutrient solution (NS), especially at quarter-strength, triggered a decrease in several morphological (plant height, leaf number, and dry biomass) and physiological (net CO2 assimilation rate (ACO2) and SPAD (Soil Plant Analysis Development) index) parameters. PE application triggered specific ameliorative effects in terms of fresh yield at both half- and quarter-strength nutrient solution (15.5% and 29.5%, respectively). This was associated with an enhancement in ACO2, SPAD index, and especially the nutritional status (high nitrate, K, and Mg contents, and low Na content). The foliar application of PE, strongly increased chlorophyll b content, enhancing jute plant adaptation to fluctuating light and therefore the efficiency of photosynthesis, positively affecting starch, soluble proteins, and total amino acids content but only when jute plants were irrigated with full-strength NS, compared to the respective control treatment. At lower nutrient strength, PE reprogrammed the nitrogen distribution, allowing its remobilization from glutamate, which was quantitatively the major amino acid under lower nutrient strength, but not from chlorophylls, thus maintaining efficient photosynthesis. We confirmed that PE Auxym® acts in a balanced manner on the main metabolic pathways of the plant, regulating the uptake and transport of mineral nutrients and protein synthesis, increasing the accumulation of essential amino acids under full nutritive solutions, and re-distributing nitrogen from amino acids to allow leaf growth and expansion even under sub-optimal nutrient conditions. Overall, the use of natural plant biostimulants may be a potential solution in low-input conditions, where environmental constraints and restricted use of fertilizers may affect potential crop productivity.


Author(s):  
Karanam Navya Jyothi ◽  
V. Sumathi ◽  
D. Subramanyam ◽  
P. Sudhakar ◽  
T. Giridhar Krishna ◽  
...  

A field experiment was conducted during kharif, 2016 and 2017 at S.V. Agricultural College farm, Tirupati to study the influence of spacing, nutrient and weed nutrient management practices on growth and yield of foxtail millet. Significant effects were noticed on growth and yield components viz., plant height, number of panicles m-2, weight of the panicle, grain weight panicle-1, grain and straw yield of foxtail millet. Among different plant geometries tried, closer spacing of 20 cm x10 cm registered taller plants, higher number of panicles m-2, higher grain and straw yield, where as the weight of the panicle, grain weight panicle-1 were found to be highest with 30 cm x10 cm. Among the micronutrient management practices, foliar application of ZnSO4@ 0.5% twice at the time of flowering and at grain filling stage along with 100% RDF registered taller plants as well as higher grain yields.Hand weeding at 20 DAS and 30 DAS outperformed other weed management practices. This was followed by pre-emergence application of butachlor @ 1 kg a.i ha-1 with one hand weeding at 30DAS.The study concluded that the closer spacing of 20cmx 10cm, foliar application of ZnSO4 at the time of flowering and 20 days after flowering along with RDF and hand weeding twice at 20 DAS and 30 DAS resulted in higher productivity of foxtail millet.


Author(s):  
Md. Shah Newaz Chowdhury ◽  
Md. Nasir Hossain Sani ◽  
Rezowana Nizam ◽  
Tania Sultana ◽  
Shahnaz Sarkar ◽  
...  

A field experiment was conducted to evaluate the morph physiological attributes, growth, quality and yield performance of five local chilli germplasm viz., Akashi (V1), Kajoli (V2), Deshi kacha morich (V3), Bogra morich (V4), Dongfou (V5) with liquid (macro & micro) nutrient solution viz. S0 (Control), S1 (Solution-1), S2 (Solution-2) were exploited on the experiment. Major characters of growth and yield such as plant height, days to first flower bud initiation, number of flowers/plant, number of fruits/plant, individual fruit weight, fruit length, fruit diameter, yield/plant, protein, and vitamin C content were influenced by amalgamation of germplasm with foliar nutrient solution. However, In amalgamation, maximum number of fruit per plant (327.0) from V2S1 and 1000 seed weight (3.8 g), yield (803.9 g/pant), fresh yield (19.6 t ha-1) obtained from V1S1 whereas lowest number of fruit from V5S0 (72.3/ pant) and 1000 seed weight (2.6 g), yield (116.2 g/ pant), fresh yield (10.4 t ha-1) obtained from V4S0.      


2021 ◽  
Vol 910 (1) ◽  
pp. 012120
Author(s):  
Kadhim Jawad Aja ◽  
Ghalib Bahio Aboud Al-Abbasi

Abstract This study was conducted in a certified citrus production nursery in Karbala province, Al-Hindiya district for the season 2020, on lime seedlings (Citrus aurantifolia) rootstock at the age of 6 months, It was sprayed with the nutrient solution Biumin 221 at concentrations (0, 1.5, 2, 2.5 m.L-1) and Basfoliar Kelp seaweed extracts at concentrations (0, 1.5, 3, 4.5) ml L-. The results showed that spraying the seedlings with single and combined study treatments led to a significant increase in all the vegetative and nutrition traits of lime seedlings. The treatment (2.5 g.L-1 nutrient solution + 4.5 ml.L-1 seaweed extract) achieved the highest averages in most of the traits. While the interaction treatment between the concentration (2.5 g.L-1 of the nutrient solution and concentration of 3 ml.L-1 of seaweed extract was excelled in the traits of leaf content of total carbohydrates, the percentage of nitrogen, iron, and zinc.


Sign in / Sign up

Export Citation Format

Share Document