Effect of Foliar Spray of Seaweed Extract and Humic Acid on Growth and Yield of Cluster Beans [Cyamopsis tetragonoloba (L.) Taub.] var. Pusa Navbahar

Abstract

Cluster bean [Cyamopsis tetragonoloba (L.) Taub.], known commonly as “Guar,” is a vital legume crop grown mostly under rainfed conditions in arid and semi-arid regions of India during the Kharif and summer season. Numerous horticultural strategies may be used to improve the growth and productivity of guar including sea weed extract and humic acid. A field experiment was conducted to determine the influence of seaweed extract and humic acid on growth, yield and post-harvest characteristics of cluster bean. Seaweed extract and humic acid were administered in the field as foliar spray at 0.1, 0.2 and 0.3 per cent concentrations in a randomized block design (RBD) consisting of seven treatments and three replicates. The results indicated that the higher concentration of 0.3 per cent seaweed extract and humic acid produced significantly higher plant height, leaf number, pod number per plant and total yield per hectare as compared to the lower concentrations and control. The post-harvest study revealed that foliar treatment of 0.3 per cent humic acid and seaweed extract resulted in a lower percentage of physiological weight loss and increased the shelf life of pods compared to untreated.

The role of organic fertilizer, chitosan, amino acids and seaweeds extract in enhancing the growth, yield and active ingredient of Cassia acutifolia Delile plants

“…Moreover, the most effective treatment in increasing such parameter was detected when spraying seaweeds extract at the high concentration (3 m /l) which increased it by 35.4 and by 36.0% over control, respectively during the two consecutive seasons. The beneficial role of chitosan in improving plant height was, also described by Ali et al (2014) and Ibrahim (2014) Ramya et al (2011) on Cyamopsis terragonolaba, for seaweeds extract. In respect to the interaction, it was statistically significant effect on plant height of senna, in the two seasons.…”

“…It has widely used in enhancing the growth and development of several plants due to it contains plant growth hormones (auxins, gibberellins and cytokinins) and amino acids, vitamins and many nutritional elements like, N, P, K, Ca, Zn, Mn, Fe, B, Cu, Co and Mo (Begum et al, 2018;Stirk et al, 2004;Zamani et al, 2013). The unique role of seaweeds extract in augmenting the growth have to be discussed on guar (Abd El-Aal et al, 2022;Ramya et al, 2011;Thirumaran et al, 2009;Vijayanand et al, 2014) on fenugreek (Mahmoud, 2021;Mahmoud et al, 2021;Tarraf et al, 2015) on roselle, regarding the yield, Vijayanand et al (2014), Khater and Rania (2016) on guar, Rathore et al (2009) on soybean, Zodape et al (2010) on mung bean, Arthur et al (2003) and Jayasinghe et al (2016) on pepper, Zodape et al (2008) on okra, Mahmoud et al (2021) and Mahmoud (2021) on roselle, besides El-Leithy et al (2019) on Plectranthus amboinicus, concerning chemical constituents. Therefore, the objective of this investigation was to study the impact the of compost as organic manure, some stimulant substances (chitosan, amino acids and seaweeds extract) and their interactions on plant growth traits, yield and active ingredient of Alexandrian senna (Cassia acutifolia Delile) plants to figure out the most suitable treatment for improving these characteristics.…”