Registration of Team Alfalfa<sup>1</sup> (Reg. No. 64)

Barnes, Daniel; Hanson, Chris; Ratcliffe, R. H.; Busbice, T. H.; Schillinger, J. A.; Buss, G. R.

doi:10.2135/cropsci1973.0011183x001300060061x

Cited by 2 publications

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“…After 10 years of breeding, “Team” was released in 1970. The cultivar is believed to express all three resistance types, but tolerance seems to be the dominant resistance factor ( Barnes et al, 1970 ). It should be noted that the goal of the researchers was not to characterize mechanisms, but rather to produce a resistant variety.…”

Section: Constraints On the Development And Use Of Tolerancementioning

confidence: 99%

Tolerance: the forgotten child of plant resistance

Peterson

Varella

Higley

2017

PeerJ

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Plant resistance against insect herbivory has greatly focused on antibiosis, whereby the plant has a deleterious effect on the herbivore, and antixenosis, whereby the plant is able to direct the herbivore away from it. Although these two types of resistance may reduce injury and yield loss, they can produce selection pressures on insect herbivores that lead to pest resistance. Tolerance, on the other hand, is a more sustainable pest management strategy because it involves only a plant response and therefore does not cause evolution of resistance in target pest populations. Despite its attractive attributes, tolerance has been poorly studied and understood. In this critical, interpretive review, we discuss tolerance to insect herbivory and the biological and socioeconomic factors that have limited its use in plant resistance and integrated pest management. First, tolerance is difficult to identify, and the mechanisms conferring it are poorly understood. Second, the genetics of tolerance are mostly unknown. Third, several obstacles hinder the establishment of high-throughput phenotyping methods for large-scale screening of tolerance. Fourth, tolerance has received little attention from entomologists because, for most, their primary interest, research training, and funding opportunities are in mechanisms which affect pest biology, not plant biology. Fifth, the efforts of plant resistance are directed at controlling pest populations rather than managing plant stress. We conclude this paper by discussing future research and development activities.

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Section: Constraints On the Development And Use Of Tolerancementioning

confidence: 99%