Effect of Boron, Copper and Humic Acid Treatments on Vegetative Growth, Yield and Storability of Jerusalem Artichoke Tubers

Abstract

These experiments were carried out during two successive summer seasons of 2013 and 2014 on Jerusalem artichoke cv. Feusa. The plants were grown at Kaha Vegetables Res. Farm, Hort. Res. Inst., Agric. Res. Centre, under clay loam soil with using surface irrigation system, to study the effect of boron , copper and humic acid on vegetative growth, yield and its components , chemical constituents and storability of Jerusalem artichoke tubers. The experiment including 9 treatments (foliar spray with 70 and 140 ppm boron, 50 and 100 ppm copper, 0.5 and 1 g/l humic acid as foliar application and 0.5 and 1 g/l humic acid as soil application beside of the control treatment (spraying with water). The experiment was arranged in a randomized complete block design with three replicates. The obtained results showed that the highest value of plant height was recorded by the plants which for sprayed with 50 or 100 ppm copper. While the plants which sprayed with 140 ppm boron gave the highest number of main stems per plant. Application of humic acid 1 g/l as soil application increased dry weight of foliage, number of tubers, yield per plant and total yield per feddan. Moreover, sprayed plants with 140 ppm boron treated plants with 1 g/l humic acid as soil application produced more average tuber weight than the other tested treatments. Chemical composition (N, P, K, Total carbohydrates and inulin contents) of Jerusalem artichoke was significantly affected with application all treatments than control treatment. The results also confirmed that weight loss and decay percentage in Jerusalem artichoke tubers increased with prolongation of storage period. In addition, the plants, which sprayed with copper or boron in both concentrations, gave the lowest values in weight loss and decay percentage in Jerusalem artichoke tubers during the storage period. Conclusively, from the obtained data in this study, it can be recommended by using humic acid at soil for improve growth, number application of boron on Jerusalem artichoke plants increased average tuber weight. Also, foliar spray with copper or boron helps to storage the tubers and low rate of weight loss and decay.

Effect of Irrigation Intervals and Foliar Applications with Some Nano-Fertilizers on Growth and Productivity of Globe Artichoke Plant: A-Vegetative Growth and Chemical Content in Leaves

“…The same trend was true during both seasons. The obtained results are in accordance with those of Samy et al (2015) and Shafshak et al (2020).…”

Effect of Organic, Bio Fertilization and Foliar Spraying Treatments on Artichoke

“…In addition, improving early artichoke growth, more dry matter accumulation and stimulated the building of metabolic products which translocated to receptacles. These results are in partial compatible with those recorded by Hafez (2013), Samy et al (2015) and Said-Al Ahl et al (2016).…”

“…Humic acid is a commercial product recognized as a plant growth promoter contains many elements which improve the soil fertility, increase the availability of nutrients, enhancing roots, plant growth, development and plant tolerance against both biotic and a biotic stresses and quality of crop, and consequently increase plant growth and yield (Abd El-Al et al, 2005). Samy et al (2015) showed that application of humic acid at the rate of 1 g/L increased number of leaves/plant, dry weight of foliage, number of tubers, yield per plant and total yield per feddan of Jerusalem artichoke. Said-Al Ahl et al (2016) revealed that humic acid foliar application at the rate of 400 ppm gave the best results of survival %, plant height, number of branches, number of umbles and seed oil yield of dill.…”

Effects of Humic Acid and Chitosan under Different Levels of Nitrogen and Potassium fertilizers on Growth and Yield potential of Potato plants (Solanum tuberosum, L.)

“…Humic acid application was a good indicator of plant activation due to increased soil moisture content and nutrient availability, more number of stolons and taller length tuber -1 (Mahmoud and Hafez, 2010). Similar results were reported by Erik et al (2000) and Samy et al (2015). The increase in yield parameters might be due to beneficial effect of humic acid on plant foliage further than increase in tuber number /plant and tuber weight which reflect positively on increase of total yield.…”