模拟玉米helicoppa(鳞翅目:夜蛾科)取食具有确定和不确定生长习性的大豆的影响

IF 2.5 2区 农林科学 Q1 AGRONOMY
Taynara Possebom, Dominic Reisig, Hayden Schug
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引用次数: 0

摘要

玉米Helicoverpa zea(鳞翅目:夜蛾科)对大豆(Glycine max L.)的危害可能通过捕食生殖组织导致产量损失。大豆品种是根据其形态生长习性进行分类的,可分为确定型和不确定型。在生长习惯确定的品种中,生殖生长的开始导致营养生长的终止,而生长习惯不确定的大豆即使进入生殖阶段也继续营养生长。在美国东南部,玉米蚜的管理建议是从具有确定生长习性的大豆品种中发展出来的。本研究的目的是了解这些生长习性对玉米玉米取食的代偿能力。我们假设,与确定生长习性相比,具有不确定生长习性的大豆在玉米摄食后可能具有更大的补偿产量成分的能力,因为不确定生长习性通常会花更长的时间。我们设计了一项田间试验,比较同一相对成熟度的单一确定品种和不确定品种。我们在开花前和荚果开始阶段(R1到R3)之间去除0%、50%和100%的生殖组织来模拟玉米玉米在两年的摄食。收集产量成分以检测生长习性之间的差异。我们发现,不确定品种通过调整荚果类型和种子重表现出更大的补偿,特别是在部分组织去除的情况下。不确定植物产生更多的一粒和四粒荚果,而确定植物增加三粒荚果。完全组织切除降低了产量成分,但适度的损害允许补偿。差异可能是由环境驱动的,应该在更多的品种中进行测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of simulated Helicoverpa zea (Lepidoptera: Noctuidae) feeding in soybeans with determinate and indeterminate growth habits
Helicoverpa zea (Lepidoptera: Noctuidae) injury to soybean (Glycine max L.) may result in yield loss by feeding on reproductive tissue. Soybean varieties are classified based on their morphological growth habit, which can be determinate or indeterminate. In varieties with a determinate growth habit, the onset of reproductive growth results in the termination of vegetative growth, while soybean with indeterminate growth habits continue vegetative growth even after entering their reproductive stages. Management recommendations for H. zea in the southeastern US were developed from soybean varieties with determinate growth habits. The objective of this research was to understand the compensatory ability of these growth habits to H. zea feeding. We hypothesized that soybean with an indeterminate growth habit might have a greater ability to compensate yield components following H. zea feeding compared to determinate growth habits, as indeterminates typically flower for a longer time. We designed a field experiment comparing a single determinate and indeterminate soybean variety within the same relative maturity. We removed 0%, 50%, and 100% of reproductive tissue between pre-bloom and beginning pod stages (R1 to R3) to simulate H. zea feeding over two years. Yield components were collected to detect differences between growth habits. We found that indeterminate varieties showed greater compensation by adjusting pod type and seed weight, particularly under partial tissue removal. Indeterminate plants produced more one- and four-seeded pods, while determinate plants increased three-seeded pods. Total tissue removal reduced yield components, but moderate damage allowed for compensation. Differences may be driven by environment and should be tested across more varieties.
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来源期刊
Crop Protection
Crop Protection 农林科学-农艺学
CiteScore
6.10
自引率
3.60%
发文量
200
审稿时长
29 days
期刊介绍: The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.
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