Identification of Weed-Suppressive Tomato Cultivars for Weed Management

Werle, Isabel Schlegel; Castro, Edicarlos; Pucci, Carolina; Soni, Bhawna; Broderick, Shaun R.; Tseng, Te‐Ming

doi:10.3390/plants11030411

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…In addition, the use of cultivars with higher competitive capacity can reduce the Critical Period of Interference Prevention in the crop. Therefore, improving the decision making related to the time of weed control and adopting cultivars with high weed suppression capacity can be an alternative for increasing the prevention and reduce the use and costs with other weed control methods (CASTRO et al, 2019;LINS et al, 2019;MEDEIROS et al, 2021;WERLE et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Weed interference periods in cowpea crop

et al. 2023

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Cowpea is one of the pulse crops that present the highest potential for growing in the Semiarid region of Brazil. Lowcost vegetable protein source, it has resilience to adverse conditions, however, in competition with weeds, its productivity can be strongly compromised. To overcoming this situation, it is essential for integrated management programs to determine the critical period for preventing interference. Thus, the objective of this work was to determine weed interference periods and the effect of coexistence periods on cowpea grain yield in the Semiarid region of the state of Minas Gerais, Brazil. The treatments were arranged in a 2×9 factorial scheme, as follows: cultivation in coexistence with weeds and cultivation under weed control, for nine crescent periods (0-7, 0-14, 0-21, 0-28, 0-35, 0-42, 0-49, 0-56 and 0-63 days after crop emergence), in a randomized experimental block design with four replications. The weed community was studied through phytosociological survey and evaluation of dry matter production and cowpea was evaluated for dry matter production, 100-grain mass and grain yield. The interference periods were determined using a non-linear logistic regression model. The weed community found was composed of 70% dicotyledonous and 30% monocotyledon plants, distributed in seven families and ten species. The coexistence with weeds results in losses of up to 90% in cowpea grain yield. The critical period of weed control in cowpea crop in the Semiarid region of the state of Minas Gerais, Brazil, is 11 to 36 days after crop emergence.

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Section: Discussionmentioning

confidence: 99%

Weed interference periods in cowpea crop

et al. 2023

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Amaranthus palmeri S. Watson: A new threat to agriculture in Europe and the Mediterranean region

Matzrafi,

Scarabel,

Milani

et al. 2023

Weed Research

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Amaranthus palmeri S. Watson is a dioecious broad‐leaved species characterised by rapid growth, high seed production, efficient resource use and adaptability to diverse environments and cropping systems. A. palmeri populations are spreading beyond their native range in south western United States, into the Mediterranean region and have been reported in several European and Mediterranean countries. First stands were located along roadsides, and later in nearby agricultural fields. Possible routes of introduction include contaminated animal feed and grain shipments for industrial processing. Some European A. palmeri populations appear to be already resistant to 5‐enolpyruvylshikimate‐3‐phosphate synthase and acetolactate synthase inhibitors when imported. Recent studies suggest that this trait may have evolved in the origin country before the introduction into southern Europe and the wider Mediterranean region. Effective, transboundary networks have to be established between farmers and researchers to raise agricultural community awareness and continuously monitor the invasiveness of A. palmeri in Europe. In this review, we first highlight botanical characteristics that allow accurate identification of A. palmeri from closely related Amaranthus species. Then, we summarise recent reports on the occurrence of A. palmeri in Europe and the Mediterranean region. We proceed to assess future invasion and spread across Europe according to climate and agricultural practices. In addition, we review measures to early detect A. palmeri and emphasised on feasible, chemical and non‐chemical weed control methods as components of integrated weed management to mitigate the impact of A. palmeri invasion on European agriculture.

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Effects of different tillage systems and mowing time on nutrient accumulation and forage nutritive value of Cyperus esculentus

Zhang

Chai

et al. 2023

Front. Plant Sci.

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Revealing the complex relationships between management practices, crop growth, forage nutritive value and soil quality will facilitate the development of more sustainable agricultural and livestock production systems. Cyperus esculentus is known as the king of oil crops and high-quality forage. However, there is little information about the effects of different planting modes {continuous cropping (CC)/rotation cropping (RC)} and initial mowing time on the plant nutrient accumulation and forage nutritive value. Here, in a field experiment, we designed two planting patterns, C. esculentus CC and C. esculentus - wheat RC. The leaves, tubers, roots, and soil samples were collected at three mowing time (on the 78th, 101th, and 124th days after seed sowing). Results revealed that RC significantly increased the total nitrogen (TN) and potassium (TK) content of the tuber (p<0.05), while significantly decreased the TN, total phosphorus (TP), crude protein (CP), and acid detergent fiber (ADF) contents of the leaves. Under the CC pattern, the TN, TP, and TK content of roots increased significantly on the 78th days after seed sowing, and the TK content of tubers increased significantly. Under the RC pattern, the ether extract (EE) content of tubers increased significantly on the 124th days after seed sowing, while the CP and TN content of leaves decreased significantly. Correlation analysis showed that soil pH was negatively correlated with TN content in leaves, tubers, and roots. The structural equation model showed that the soil pH directly affected the plant nutrient accumulation and forage nutritive value (β=0.68) via regulating these properties by changing soil available nutrients, anions, cations, and total nutrients. Overall, we propose that RC for C. esculentus-wheat is should not be recommended to maximize tubers and forage yield.

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Identification of Weed-Suppressive Tomato Cultivars for Weed Management

Cited by 3 publications

References 26 publications

Weed interference periods in cowpea crop

Weed interference periods in cowpea crop

Amaranthus palmeri S. Watson: A new threat to agriculture in Europe and the Mediterranean region

Effects of different tillage systems and mowing time on nutrient accumulation and forage nutritive value of Cyperus esculentus

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