Effect of Some Irrigation Levels and Foliar-Spray Application With Some Chemical Substances on Growth and Yield of Salvia Hispanica in Egypt

Abstract

This study was carried out in two successive seasons (2014-2015 and 2015-2016) at SEKEM company Farm (Bilbase, Sharkya Governorate) on chia (Salvia hispanica) plant which is a new crop introduced lately to Egyptian cultivation as a medicinal plant. The effect of three irrigation levels of different reference evapotranspiration (80, 100 and 120 % ETo) with foliar application of three levels of proline (100, 200 and 300 ppm), salicylic acid (200, 400 and 600 ppm) and putrescine (10, 15 and 20 ppm) in addition to the control treatment (tap water) was investigated on growth and yield of Salvia hispanica cultivated in sandy loam soil with drip irrigation system. The results of the two years experiments indicated that the highest values of plant growth parameters and seeds yield of S. hispanica were obtained from 100 % ETo. While 120 % ETo resulted in the maximum value of roots fresh and dry weights. Foliar-spray application of proline (100 ppm.), salicylic acid (200 ppm) and putrescine (10 ppm) resulted in optimum fresh and dry weights of herbage and roots. Seed yield was higher in plants sprayed with proline (100 ppm) and putrescine (10 ppm), although the differences between them and salicylic acid (200 and 400 ppm) or putrescine (15 ppm) were insignificant in both seasons. This leads us to recommend irrigation of S. hispanica accordingly with 100 % ETo coupled with foliar-spray application of salicylic acid (200 ppm) from the economic point of view.

Influence of varying soil moisture on growth and yield of Chia (Salvia hispanica l.) in Meru county, Kenya.

“…Decreased plant height could result from inhibition of cell enlargement or cell division under water stress. The agree with Fouad et al (2018), who recorded a reduction of 11-13% in the plant height of Chia at 120 % irrigation compared to 80% irrigation. 8% reduction in the stem height of rice was also reported in unirrigated fields compared to 100% full irrigation (Ahmadikhah & Marufinia, 2016).…”

Influence of Foliar Application of Salicylic Acid on Growth and Yield of Chia (Salvia hispanica)

“…The herb fresh weight produced per plant appeared to be positively correlated with height and number of primary branches per plant, as the plants in various treatments having more height and number of branches also had more herb fresh weight. These results are in close conformity with the results of (Fouad et al, 2018) Najafian (2009) reported that spraying salicylic acid at three levels (150, 300, and 450 mMol) on Thymus vulgaris L. had a significant effect on the fresh and dry weight of Thyme plant. Spraying at a concentration of 150 mM showed an increase in the dry weight of the plant and foliar application of 300 ppm salicylic acid was found to be superior in promoting herb dry weights (g) plant -1 comparing to rest of the treatments which gained (14.34g) dry weight plant -1 .…”

“…Application of exogenous SA also influenced significant variation in dry weight of the plant. An application of SA significantly increased the dry weight of plant may be due to improved photosynthetic efficiency in plants (Hayat et al, 2007), stabilization of chlorophyll and assimilates translocation from source to sink, which ultimately enhanced dry weight of chia plant (Fouad et al, 2018). Furthermore, salicylic acid acts as defense hormone that could reduce the abiotic stress in leaves which ultimately leads to increase amount of dry matter contents production in marigold flowers (Champa et al, 2015).…”