scholarly journals Conventional versus Nano Calcium Forms on Peanut Production under Sandy Soil Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 767
Author(s):  
Mohamed Hamza ◽  
Mohamed Abbas ◽  
Asmaa Abd Elrahman ◽  
Mohamed Helal ◽  
Mohamed Shahba
Keyword(s):  
Sandy Soil ◽  
Field Experiments ◽  
Foliar Application ◽  
Saline Water ◽  
Calcium Nitrate ◽  
Soil Conditions ◽  
Quality Traits ◽  
Arachis Hypogaea L ◽  
Peanut Production ◽  
Elemental Calcium

Abiotic stresses in sandy soil, which include saline water, saline soil, and lack of nutrients, affect the productivity and quality traits of peanuts (Arachis hypogaea L). Elemental calcium (Ca2+) is necessary for the proper development of peanut pods. This work aimed at comparing conventional Ca and nano-Ca form effects on peanut production and quality traits. Two randomized complete block field experiments were conducted in the 2015 and 2016 seasons. Treatments were control, gypsum plus calcium nitrate Ca(NO3)2, Ca(NO3)2, and chelated calcium, as well as 100, 75, 50, 25, and 12.5% of Ca(NO3)2 doses in a nano form. The results indicated that the treatment of gypsum plus conventional CaNO3 achieved the highest yield and best quality traits, followed by the Ca(NO3)2 and 100% nano Ca(NO3)2 treatments. The treatments of the control, gypsum, and 12.5% nano Ca(NO3)2 had the lowest effect on peanut performance. The conventional treatment of gypsum plus Ca(NO3)2 resulted in the greatest seed yield (1.6 ton ha−1), oil yield (700.3 kg ha−1), and protein yield (380.1 kg ha−1). Peanuts may benefit from Ca2+ better by using gypsum as the soil application and calcium nitrate as the foliar application to prevent disorders of Ca2+ deficiency under sandy soil conditions.

Effects of planting density on pod development and yield of peanuts under the pattern of precision planted peanuts

2017 ◽  
Author(s):  
Changxing Zhao ◽  
Changliang Shao ◽  
Zhenling Yang ◽  
Yuefu Wang ◽  
Xiaojun Zhang ◽  
...  
Keyword(s):  
Management Practices ◽  
Field Experiments ◽  
Planting Density ◽  
Dry Matter Accumulation ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Pod Development ◽  
Peanut Production ◽  
Sowing Seed ◽  
Growth Characters

Understanding the effects of different sowing patterns and densities on plant growth characters and yield of peanut is essential for the design and adjustment of management practices that allow improvement and stabilization of peanut production. In the present study, Arachis hypogaea L. cv. Luhua 11 was used to determine the effects of planting density on pod development and yield of peanuts under the mode of single seeded precision sowing through field experiments. The results showed that an appropriate precision sowing density of 195,000-225,000 per hectare leads to an optimal pod number to produce pods, with dry matter accumulation resulting in significantly increased pod yield and harvest index(HI). When the same area sowing seed number of 255,000 per hectare, the kernel yield, pod yield, and HI per plant of the single seeded precision sowing method were higher than those of the double seeded precision sowing method.

scholarly journals Selenium Modulates Antioxidant Activity, Osmoprotectants, and Photosynthetic Efficiency of Onion under Saline Soil Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 855
Author(s):  
Wael M. Semida ◽  
Taia A. Abd El-Mageed ◽  
Abdelsattar Abdelkhalik ◽  
Khaulood A. Hemida ◽  
Hamdi A. Abdurrahman ◽  
...  
Keyword(s):  
Photosynthetic Efficiency ◽  
Field Experiments ◽  
Foliar Application ◽  
Negative Impact ◽  
Antioxidant Activities ◽  
Saline Soil ◽  
Soluble Sugars ◽  
Soil Condition ◽  
Soil Conditions ◽  
Bulb Yield

Selenium (Se) has been recently reported to play a crucial role in ameliorating the negative impact of abiotic stress, including salinity, on several plant species. Two field experiments (2016/17 and 2017/18) were carried out to investigate the possible effect of exogenous Se application at two levels (25, 50 mg L−1) on growth, bulb yield, physio-biochemical attributes, and antioxidant activities of onion grown under saline (5.25 dS m−1) soil condition. Se (25 or 50 mg L−1) foliar application enhanced growth characteristics, as well as membrane stability index (MSI) and relative water content (RWC) as a result of the osmotic adjustment by accumulating more osmoprotectants and enhancing the activity of antioxidants defense system, thus improving photosynthetic efficiency and bulb yield. Proline, glycine betaine, choline, and total soluble sugars content were higher in leaves and bulbs of Se-treated plants under salt stress. Se (25 or 50 mg L−1) significantly increased the activities of enzymatic (ascorbate peroxidase, superoxide dismutase, and catalase) and non-enzymatic (ascorbic acid and glutathione) antioxidants in both leaves and bulbs of salt-stressed onion. Se application at 25–50 mg L−1 may find, in the future, a potential application as anti-abiotic stresses for improving plant growth and productivity under saline soil condition.

scholarly journals Effect on Yield and Incidence of Blossom-end Rot of Foliar Application of Calcium Products on Tomato Cultivated in Saline Conditions

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 475E-475
Author(s):  
J.A. Franco ◽  
P.J. Pérez-Saura ◽  
A. Durán
Keyword(s):  
Foliar Application ◽  
Saline Water ◽  
Calcium Nitrate ◽  
Randomized Design ◽  
Significant Difference ◽  
Blossom End Rot ◽  
Total Free Amino Acids ◽  
The Difference ◽  
Effect On Yield ◽  
And Control

The appearance of blossom-end rot (BER) in tomato is related to a decrease in the absorption and translocation of Ca due to excessive salinity in the soil solution. An experiment was conducted to investigate the effects of calcium nitrate (NT), EDTA-Ca (ED) and Aminoquelant-Ca (AQ)—a product containing Ca, B and protein hydrolisate—on the yield and incidence of BER when applied to the leaves of tomato (Lycopersicon esculentum Mill. `Durinta') grown in the open with a drip irrigation using saline water from a well (mean ECw 5.2 dS·m–1). The three calcium treatments and control were replicated four times, with 12 plants per replication, in a completely randomized design. Although yield per plant was higher with AQ, the difference was not statistically significant. Fewer fruit were affected by BER after treatment with ED and AQ than with NT and in the control. Leaf Ca concentration did not differ significantly between treatments. However, leaf B concentration was higher after treatment with AQ. Fruit Ca and B concentrations did not differ significantly in any treatment. The total free amino acids content in leaves was higher after AQ treatment than in the other treatments and control, although no significant difference was observed between the treatments in the fruit.

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