Boron Foliar Spray Research Articles

Seed Yield and Quality of Wheat as Influenced by Different Agronomic Practices in South-Central Coastal Region (Aez-13) of Bangladesh

A field study was carried out at Regional Agricultural Research Station, Rahmatpur, Barishal during Rabi 2019-2020 on wheat seed yield and quality influenced by different management practices. The experiment was comprised of two sowing dates with seven different agronomic management practices. The experiment was laid out in split plot design where sowing dates were assigned in main plot and different agronomic management practices in sub-plot with three replications. The results revealed that, optimum sowing condition (20th November) always maintain superiority over delayed sown condition (20th December) in respect of seed yield and quality. From agronomic management aspects strip tillage + recommended fertilizer doses+ 3 irrigations showed the best permormance in respect of seed yield (3.433 t/ha) and quality. From interaction effects of sowing date × agronomic management practices using strip tillage + recommended fertilizer doses+ 3 irrigations treatment with optimum sowing condition e.g. 20th November sowing condition performed the best in respect of seed yield (4.223 t/ha) and quality. Another two treatments (Strip tillage + recommended fertilizer dose + Boron foliar spray at anthesis (0.2%) + 2 irrigations (CRI, Booting) + Cowdung) and (Recommended fertilizer dose (NPKSMgZnB@ 120-30-90-15-6-2.6-1 kg/ha) + Boron foliar spray at anthesis (0.2%) + 3 irrigations (CRI, Booting, Grain filling) also produced statistically identical seed yield (4.15 and 4.01 t/ha, respectively). But considering economic point of view, (Recommended fertilizer dose + 0.2% boron foliar spray at anthesis + 3 irrigations) gave the highest BCR (2.46) and economic return. In late seeding condition (20th December) (strip tillage + recommended fertilizer doses+ 3 irrigations) treatment had performed the best in respect of seed yield (2.643 t/ha) and seed quality (germination 67.33%). J. Bio-Sci. 32(2): 01-12, 2024

Response of Olive Trees (Olea europaea L.) cv. Zaity to Bio health and Foliar Spray of Tecamin max and Boron

During the growing season of 2022, the experiment was conducted in one of the private orchards located in Hassan ava village, Zakho district, Dohuk governorate, Kurdistan region, Iraq, to study the response of olive tree (Olea europaea L.) cv. Zaity to biofertilizer (bio health) and foliar spray of the amino acid (tecamin max) and Boron. Olive trees were planted 6 x 6 m apart on clay sandy loam soil and fed with well water using a drip irrigation system. Olive trees were treated with three levels of biofertilizer (bio health) at (0, 1,0 and 15 g.L-1), added to the soil, and three levels of the foliar spray with amino acid (tecamin max) at (0, 10, 15 ml.L-1), and three levels (0, 200 and 300 mg. L-1) of boron foliar spray. A factorial experiment with three replications was carried out in a randomized complete block design (RCBD), using one tree for each experimental unit. The study reached the following results: application of biofertilizer (bio health) in the soil, especially at 15 g.L-1, and foliar spraying of the amino acid (tecamin max) at 15 ml.L-1 led to a significant increase in all studied characters (leaves mineral content N, P, K, and B%) and physical characters of fruit (fruit weight, fruit length, fruit width and total yield per tree) except pulp: stone ratio, while the control treatment gave the lowest average for the aforementioned traits. Foliar spray of boron especially the level of 300 mg. L-1, led to a significant increase in all the studied characteristics (leaves mineral content N, K, and B%) and physical characters of fruit (fruit weight, fruit length, fruit width, and total yield per tree) except pulp: stone ratio and phosphorus content in leaves, while the comparison treatment gave the lowest average for the aforementioned traits. There was also a significant increase in the binary and triple interactions of the study treatments on all the studied traits, especially the high levels of the study factors (15 g.L-1 bio-health, 15 ml.L-1 tecamin max, and 300 mg. L-1 boron).

Addition of silicon to boron foliar spray in cotton plants modulates the antioxidative system attenuating boron deficiency and toxicity

BackgroundBoron (B) nutritional disorders, either deficiency or toxicity, may lead to an increase in reactive oxygen species production, causing damage to cells. Oxidative damage in leaves can be attenuated by supplying silicon (Si). The aim of this study was to assess the effect of increasing foliar B accumulation on cotton plants to determine whether adding Si to the spray solution promotes gains to correct deficiency and toxicity of this micronutrient by decreasing oxidative stress via synthetizing proline and glycine-betaine, thereby raising dry matter production.ResultsB deficiency or toxicity increased H2O2 and MDA leaf concentration in cotton plants. H2O2 and MDA leaf concentration declined, with quadratic adjustment, as a function of increased leaf B accumulation. Proline and glycine-betaine leaf concentration increased under B-deficiency and B-toxicity. In addition, production of these nonenzymatic antioxidant compounds was greater in plants under toxicity, in relation to deficient plants. Adding Si to the B spray solution reduced H2O2 and MDA concentration in the plants under nutrient deficiency or toxicity. Si reduced H2O2, primarily in B-deficient plants. Si also increased proline and glycine-betaine concentration, mainly in plants under B toxicity. Dry matter production of B-deficient cotton plants increased up to an application of 1.2 g L− 1 of B. The critical B level in the spray solution for deficiency and toxicity was observed at a concentration of 0.5 and 1.9 g L− 1 of B, respectively, in the presence of Si, and 0.4 and 1.9 g L− 1 of B without it. In addition, the presence of Si in the B solution raised dry matter production in all B concentrations evaluated in this study.ConclusionOur findings demonstrated that adding Si to a B solution is important in the foliar spraying of cotton plants because it increases proline and glycine-betaine production and reduces H2O2 and MDA concentration, in addition to mitigating the oxidative stress in cotton plants under B deficiency or toxicity.

Boron application influenced growth, yield and fiber quality of upland cotton (Gossipium hirsutum L.) under different irrigation regimes

Cotton is a major imperative cash crop crop globally including Pakistan. Among abiotic stresses, drought stress is critical that suppress plant growth, reduce crop production, low fiber quality and poor earnings for farmers. Nutrient deficiency is major factor resulting in poor crop production. Sufficient nutrient application has better capability to increase yield because it helps to plants to stand against adverse climatic conditions within the growing areas. Therefore, present study was conducted on evaluation of cultivars performance applying numerous irrigation systems and use of boron through different methods. Cultivar CIM-678 had maximum growth traits, allometry parameters and fiber quality attributes than CIM-602 which had minimum growth, allometry and fiber quality traits. Foliar application of boron and field capacity (75%) also increased plant growth, allometry and fiber traits. The interactive effects of cultivars, boron use and field capacity were improved the plant growth, yield, allometry parameter and fiber quality traits. Conclusively, CIM-678, boron foliar spray and field capacity (75%) improved the cotton crop production with excellent fiber quality traits. Keywords: BCR; Drought stress; Field capacity; Foliar spray http://dx.doi.org/10.19045/bspab.2021.100139

Significance of nitrogen, phosphorus, and boron foliar spray on jojoba plants

BackgroundJojoba plants [Simmondsia chinensis (Link) Schneider] are appropriate to the semiarid regions; it has the ability to survive in a harsh desert environment and it is very drought-resistant and can be grown on marginal lands without replacing any existing crops. After that, Jojoba is a new oil-producing industrial crop, oil-producing cash crop, and has much of the interest in worldwide in recent years. So, processes are made to increase the seed yield of jojoba as requirements of essential fertilizer and evaluation of new clones. Two field experiments were conducted on five clones (S-BS-, S-700, 610, S-L, and S-G) aged 3 and 13 years from planting at North Sinai, Egypt on sandy soil to study the effect of foliar spray with nitrogen, phosphorus, and boron with three rates of NPB (00, NPB1 (N 1%, P 0.75%, and B 0.4%) and NPB2 (N 1.5%, P1.25% and B 0.8%)) on oil and other contents of jojoba plants.ResultsResults showed that all treatments improved the vegetative growth, yield, and seed quality. Concerning oil, weight of 100 seeds and oil percent in seeds with treatment NPB2 under clone S-700 gave the highest value for all study parameters.ConclusionsTherefore, for improving yield and seed quality, it could be recommended with foliar spray NPB2 (N1.5%, P 1.25%, and B0.8%) under the condition of this study on jojoba plants.

Effect of drip fertigation and boron foliar spray on storage quality of harvested onion seeds

Effect of drip fertigation and boron foliar spray on storage quality of harvested onion seeds

Effect of pre harvest application of boron and zinc on post harvest quality and vaselife of carnation

The study was conducted to determine the effect of pre harvest spray of micronutrients like boron, zinc and its combination on post harvest quality and vase life of carnation. Post harvest quality of flowers like flower stalk length (65.61 cm) was maximum in the plant treated with zinc (0.3 per cent), and calyx splitting (3.12 per cent) was minimum in the plants treated with boron (0.1 per cent). Flower diameter (6.64 cm) was highest with boron (0.1 per cent) + zinc (0.3 per cent) treatment. Plants without micronutrient treatment produced poor quality flowers. Regarding vase life studies maximum water uptake and minimum transpiration loss from first day to sixteenth day was resulted in the flowers which are obtained from the plant treated with boron (0.1 per cent). The maximum fresh weight of the flower was noticed in combination of boron (0.1 per cent) + zinc (0.3 per cent) from first to sixteenth day. The foliar spray of boron (0.1 per cent) recorded maximum vase life (11.05 days). So the good quality of flowers can be improved by the foliar spray of zinc, calyx splitting can be controlled by boron foliar spray and vase life of the flower can be maintained by foliar spray of boron. It is confirmed that the foliar application of micronutrient is very much helpful for the improvement of post harvest quality and vase life of carnation.

Effects of zinc and boron foliar application on soluble carbohydrate and oil contents of three olive cultivars during fruit ripening

Fertility management for olive (Olea europea L.) production depends on the growing conditions and type of cultivar. The present study was conducted to investigate the influence of zinc and boron foliar spray on fruit quality of three olive cultivars of Keylet, Coronaiki and Mission. Zinc sulphate (0.25%), boric acid (0.25%), and zinc sulphate (0.25%)+boric acid (0.25%) were sprayed on selected trees twice; at full bloom and 15 days after blooming. Results indicated that during fruit ripening, oil content increased from 11.7 to 19.4%, whereas soluble carbohydrate tended to decrease from 5.9 to 4.9%. The zinc and boron treatments enhanced the ratio of unsaturated/saturated fatty acids compared to untreated plants. The highest level of oleic acid (57.2%) and the lowest level of palmitic acid (15.19%) were recorded in cv. Coronaiki fruits treated with combination of zinc sulphate+boric acid.

Effect of Calcium and Boron Foliar Spray on Fruit Quality and Leaf Nutritional Status of "Kelsey" Plum Trees

Effect of Calcium and Boron Foliar Spray on Fruit Quality and Leaf Nutritional Status of "Kelsey" Plum Trees

Potassium and Boron Nutrition Enhance Fruit Quality in Midwest Fresh Market Tomatoes

The tomato fresh fruit market has rigorous quality standards that can be challenging to meet, particularly under highly variable climatic conditions. Information is required about the influence of nutritional regime on tomato fruit and the interaction of potassium (K) and boron (B) in particular. A field experiment was conducted in 2002 and 2003 to evaluate the effects of K and B on yield and quality of fresh market tomatoes cv. ‘Mountain Spring’ at a southwest Michigan site with well‐drained soil (Alfisol Hapludalf, Oakville fine sand). Treatments applied during fruit development included three fertigation regimes (1N:0.8K, 1N:1.7K, and 1N:2.5K) in the presence and absence of a weekly foliar spray of B (300 mg⋅L−1 B). Increasing K concentration in the fertilizer increased K content in leaf tissue, but in some cases reduced tissue calcium (Ca) and B. Fruit quality was influenced by nutrition, as the greatest rate of K was associated with increased crack susceptibility as indicated by a fruit bioassay and a 14% increase in incidence of the defect “shoulder check” in field‐grown fruit compared to less rates of K nutrition. Boron foliar spray increased tomato marketable yield and fruit quality, reducing shoulder check incidence by 50% compared to zero‐B‐treated plants in 2003. Because of yield and quality improvements, B was a cost‐effective treatment as shown by partial budget analysis, whereas increasing K nutrition did not provide consistent economic benefits. Moderate K rates were associated with the greatest marketable yield, and the 1N:1.7K plus foliar B nutrient regime produced the greatest quality fruit. Overall data were consistent with the need to carefully evaluate K and B nutrition in tomatoes, in the context of soil type, yield potential, fruit quality, and nutrition regime.

Interactive Effects of K and B on Tomato Shoulder Check, a Quality Defect in Fresh Market Tomato

Potassium (K) and boron (B) nutrition play an important role in control of tomato quality. To evaluate the interactive effects of K and B on yield and fruit quality in fresh market tomatoes, two-year field experiments were conducted in 2002 and 2003 in Southwest Michigan, using the industry standard cultivar `Mountain Spring' and recommended practices for irrigated, staked fresh market production. Six treatments evaluated three fertilizer regimes applied during fruit development (1N:1K, 1N:2K and 1N:3K) and two weekly B foliar sprays (none and 300 mg·L-1 B) at fruit set stage. Increasing K concentration in the fertilizer increased K content in both leaf and fruit tissue, but reduced calcium content in leaf tissue. 1N:3K fertilizer treatment increased tomato shoulder check incidence. The overall total percent shoulder check defect was 32.7%, 33.5% and 38.2% for 1N:1K, 1N:2K and 1N:3K fertilizers, respectively. Weekly B foliar spray increased both tomato marketable yield and fruit quality. Less shoulder check incidence was obtained with a foliar B spray. Boron foliar spray also increased K content in fruit tissue for 1N:1K and 1N:2K treatments. The 1N:2K plus B foliar spray is recommended for improving tomato yield and quality.

The Effect of Boron on the Lipid Content and Discoloration of Potatoes

SUMMARYOntario, Katahdin, and Pontiac potatoes grown with and without boron foliar spray were examined for discoloration and lipid content. The lipid was fractionated into free fatty acids, neutral fat, and phospholipids. The free fatty acids from each of the three fractions were esterified and determined quantitatively by gas chromatography. Discoloration was measured with a Hunter color‐difference meter.The total lipid of all three varieties was higher in potatoes treated with boron than in the control potatoes. Cortex tissue was significantly higher in lipid content that center tissue. Pontiac potatoes, the variety most resistant to discoloration, had the highest lipid content. The phospholipid fraction of all three varieties was higher in the potatoes treated with boron, and the neutral‐fat fraction was higher in Pontiac potatoes treated with boron than in untreated potatoes.Treatment of potatoes with boron tended to increase the amount of unsaturated and decrease the amount of saturated fatty acids. The free fatty acid fractions of potatoes receiving boron treatment were lower in palmitic and higher in linoleic acid than the control, the neutral fat fraction was higher in linolenic acid, and the phospholipid fraction was lower in palmitic acid. Potatoes receiving boron discolored less than control potatoes.