Effect of the soil water content on Jatropha seedlings in a tropical climate

Pérez-Vázquez, Arturo; Hernández‐Salinas, Gregorio; Ávila-Reséndiz, Catarino; Valdés-Rodríguez, Ofelia Andrea; López, Felipe Gallardo; García-Pérez, Eliseo; Ruiz-Rosado, Octavio

doi:10.2478/intag-2013-0004

Cited by 9 publications

(9 citation statements)

References 11 publications

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“…This result is in good agreement with that reported by Pérez -Vazquez et al (2013), who found that total dry matter at 0.6, 0.4, and 0.2-DI, were statistically similar, but different from 0.9 and 0.80-DI. On the other hand, reduction in the same vegetative characters under 0.6-DI (0.4 field capacity) was agreed to somewhat with that obtained by Jayasundara et al (2014).…”

Section: Resultssupporting

confidence: 93%

“…Effect of soil moisture content on growth and yield in Jatropha was covered in some studies, Jayasundara et al (2014) found that decreasing soil moisture content at early growth stage up to 50 -60% (depletion level) was negatively affected the vegetative plant growth. On the other hand, Pérez-Vazquez et al (2013) found that total dry matter and chlorophyll at 40, 60 and 80% soil water content (SWC) were statistically similar. In arid regions where irrigation is the most limited factor for crop production, it is imperative to have complete information for economic production of Jatropha for maximum utilization.…”

Section: Introductionmentioning

confidence: 96%

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Effects of Deficit Irrigation Strategy and Foliar Application of Salicylic Acid on Growth of Jatropha curcas L.

Hokam

2017

HJSC

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At present, irrigated agriculture will take place under inadequate water incompetency. In this research the interaction between deficit irrigation (DI) and spraying Jatropha shrubs grown in sandy soil with salicylic acid (SA) to have a significant impact on increasing its adoption to water-limited areas was studied. Irrigation process included three levels of water regime, DI. In the first level, soil was irrigated up to full field capacity (0.0-DI), in the second, soil was irrigated up to 0.65 of full field capacity (0.35-DI), and up to 0.4 of full field capacity for the third level, representing 0.60-DI. Also, Jatropha plants were foliar sprayed with three levels of SA as 0.0, 5.0 and 10 mM. SA application at the rate of 5 mM enhanced vegetative growth. The optimum treatment on growth characters was found when plants irrigated with fresh water at 0.35-DI without significant difference with those at 0.0-DI treatments. Also, SA application either at 5.0 or 10.0 mM resulted in negative impact on plant growth, when plants subjected to 0-DI. The obtained results indicated that, following 0.35-DI strategy, great amounts of irrigation water could be saved and reached minimally 206 L plant -1 years -1 at 2 nd year (144 m 3 feddan -1 ).

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 96%

Effects of Deficit Irrigation Strategy and Foliar Application of Salicylic Acid on Growth of Jatropha curcas L.

Hokam

2017

HJSC

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“…Some variables that are correlated with plant height and stem diameter are the total dry matter and leaf area index [ 42 ]. In this regard, Schwerz et al [ 21 ], when intercropping S .…”

Section: Discussionmentioning

confidence: 99%

Morpho-agronomic evaluation of native maize races associated with Mexican tropical climate agroforestry systems

et al. 2022

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Maize (Zea mays L.) is native to Mexico, in which wide genetic diversity can be found; however, maize is at risk of genetic erosion, and agroforestry systems (ASs) can be a strategy for conservation and sustainable use of this crop. The objective of this study was to evaluate the variation in the morpho-agronomic characteristics of three native maize races, Tuxpeño, Olotillo × Tuxpeño and Ratón × Tepecintle, cultivated in different AS in a tropical climate of Veracruz, Mexico, as well as its association with microclimatic conditions. In 2019, experiments were established in the localities La Gloria and La Luisa, Veracruz, where the three maize races are cultivated, in a randomized complete block design with three replications in a 3 × 4 factorial scheme (three native maize races and three AS arrrays, plus monoculture). Ten morpho-agronomic variables were recorded in each experiment and were analyzed by analysis of variance (ANOVA; Tukey’s post-hoc test, all p ≤ 0.05) and principal component analysis (PCA). Six morpho-agronomic characteristics showed significant differences for the race × system interaction. Consistently standing out both in the Myroxylon with 2.8 m × 2.0 arrays and in the monoculture was the Olotillo × Tuxpeño race, as there were no variations (p ≥ 0.05) in 50% of its morpho-agronomic characteristics. The first three PCs explained 87.7% of the cumulative variance, determined by five variables of the ears, three of the grain and plant height, which were associated with temperature; therefore, the microclimatic conditions of the studied ASs are associated with the morpho-agronomic characteristics of the native maize races. The results show that ASs could be a strategy for the conservation and use of native corn germplasm and could allow the diversification of sustainable production for rural farmers.

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“…Jatropha , with thicker stems and lower slender indexes, reflects a strong adaptation to dry environments, storing resources at the base of its stem [34]. It is important to remark, here, that this subtropical site has a pronounced dry season that can last up to five or six months; thus, native trees and shrubs, like Jatropha , have developed morphological adaptations to deal with this dry period [35]. Moringa represented a different strategy to cope with arid places because it developed the thinnest stem (Figure 1), but also 11% higher elongation rates than Jatropha .…”

Section: Discussionmentioning

confidence: 99%

Seedling Characteristics of Three Oily Species before and after Root Pruning and Transplant

Valdés-Rodríguez

Pérez-Vázquez

2019

Plants

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Moringa oleifera Lam. (Moringa), Jatropha curcas L. (Jatropha), and Ricinus communis L. (Ricinus) are oily species known by their capability to grow in tropical and subtropical lands. However, there are no studies comparing their growth and recovery capabilities after root pruning and transplant. The purpose of this research was to compare and analyze propagation, growth, and recovery performance of these species after root pruning and transplant. We sowed 100 seeds per species and monitored their survival and growth during a 63-day period; after this, we uprooted the plants and pruned their roots 4.0 cm from their base and transplanted them. We monitored their recovery over 83 days, and then uprooted plants and measured above- and belowground data, digitized their roots in three dimensions, and calculated biomass fractions. With this information, we established allometric equations to estimate biomass fractions and root distribution models. Results indicated that Ricinus had the highest propagation capabilities. Jatropha and Ricinus had similar recovery after root pruning and transplant. Moringa had the lowest propagation and recovery from transplant. Concerning belowground data, root pruning increased root density more than three times in Moringa, four times in Ricinus, and six times in Jatropha. Nevertheless, the three species maintained natural root trays. Ricinus had the longest and thinnest roots and the highest number of branches, followed by Jatropha, and finally Moringa, with the smallest quantity and the shortest and thickest roots. We concluded that the three species recovered well from root pruning and transplant, with improved root structure upon applying these practices.

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Effect of the soil water content on Jatropha seedlings in a tropical climate

Cited by 9 publications

References 11 publications

Effects of Deficit Irrigation Strategy and Foliar Application of Salicylic Acid on Growth of Jatropha curcas L.

Effects of Deficit Irrigation Strategy and Foliar Application of Salicylic Acid on Growth of Jatropha curcas L.

Morpho-agronomic evaluation of native maize races associated with Mexican tropical climate agroforestry systems

Seedling Characteristics of Three Oily Species before and after Root Pruning and Transplant

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