Effects of organic and inorganic fertilization on growth, yield, seed fixed oil content, and fatty acids profile of garden cress (Lepidium sativum L.)

Abstract

In the present study, a field experiment was conducted for two consecutive seasons (2016/2017 and 2017/2018). The effects of organic and inorganic fertilization on growth, seed yield, seed fixed oil yield, and fatty acid profile of garden cress (Lepidium sativum L.) were investigated under conditions of Khartoum State, Sudan. In each season, the experiment was laid out in a randomized complete block design with four replications. Four fertilizer treatments were used; these were chicken manure at a rate of 11.9 tonha −1 , NPK (15:15:15) at two rates, 476 kgha −1 (NPK1), 952 kgha −1 (NPK2) as well as the control. Morphometric parameters, yield components, seed fixed oil content (%), seed fixed oil yield (tonha −1), and fatty acids profile were measured. Means were separated using the least significant difference at p ≤ 0.05 and at p ≤ 0.01. The difference between chicken manure, NPK1, and NPK2 was not significant (p ≤ 0.05) in both seasons, for plant height and 1000-seed weight. However, it was significant (p > 0.05) with chicken manure in both seasons for the number of leaves (831.7, 684), the number of branches (144.8, 128.5), fresh weight (57.74, 61.25), and dry weight (6, 7.7). The NPK2 treatment significantly (p ≤ 0.05) increased the number of capsules (339.5, 308 tonha −1), seed yield (5.51, 4.8 tonha −1), seed fixed oil content (25.65%, 25%), and seed fixed oil yield (1.4, 1.1 tonha 1) compared to the control in both seasons. The oil profile was affected by all fertilizer treatments. Acoordingly, it can be concluded that using fertilizer is recommended for improvement of growth, seed yield, and oil yield, and quality of L. sativum.

Effects of Agricultural Management of Spent Mushroom Waste on Phytotoxicity and Microbiological Transformations of C, P, and S in Soil and Their Consequences for the Greenhouse Effect

“…TP also played an important role in these parameters, as demonstrated by correlations at the level of p < 0.001 and p < 0.01 for virtually all combinations (Figure 13). The influence of these elements on the growth of L. sativum was also reported by Mohamed et al [74]. The results of the current study concerning L. sativum root length, measured after two and four days, indicated that this parameter was most sensitive to potentially harmful compounds occurring or resulting from changes in organic matter introduced with SMS and M in soil solution.…”

Effect of Irrigation Level and Nitrogen Levels on Economics, Quality and Water Productivity of Garden Cress (Lepidium sativum L.)

“…The result of this study also stated that increasing level of nitrogen the oil yield in seeds of chandrasur also increase. These results are in agreement with those establishing that fertilization increases the fatty acid presence, percentages and the fattyacids ratio in canola seed oil [7,8].…”

Increased Free Radical Scavenging Activity and Consumer Preference in Garden Cress (Lepidium sativum L.) Subjected to Water Stress

“…When we consider the decrease in leaf area, however, it can be said that the amount of chlorophyll in the control plants were higher than the other treatments. Chlorophyll is essential in the process of photosynthesis and is responsible for vegetative growth (Mohamed et al, 2020). Decreased chlorophyll a and b in plant leaves may also affect photosynthetic performance, which may reduce plant growth (Ehsan et al, 2014).…”