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Durable resistance to late blight (Phytophthora infestans) in old potato cultivars
TLDR
The most resistant cultivars were Robijn, Populair, Pimpernel, Libertas and Surprise, which were also among the latest maturing in the material, and may have the same resistance genes.
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Whole genome comparison of a large collection of mycobacteriophages reveals a continuum of phage genetic diversity
TLDR
To understand the population structure of phages infecting a single host strain, 627 phages of Mycobacterium smegmatis were isolated, sequenced, and compared to reveal a continuum of genetic diversity, albeit with uneven representation of different phages.
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A reciprocal F1 monosomic analysis of the genetic control of time of ear emergence, number of leaves and number of spikelets in wheat (Triticum aestivum L.)
TLDR
Ch Chromosomes associated with differences in days to ear emergence, number of leaves and number of spikelets were identified and both Spica and Bersée appear to have a vernalization insensitity allele at the Vrn2 locus on chromosome 5B.
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Resistance to potato late blight (Phytophthora infestans (Mont.) de Bary) in Solanum nigrum, S. villosum and their sexual hybrids with S. tuberosum and S. demissum
TLDR
Microscopical examination of infections in S. nigrum showed that penetration of epidermal cells and subsequent intercellular growth of the pathogen into the spongy mesophyll occurred, but without the formation of haustoria, and that invaded and neighbouring cells became necrotic.
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The physiology of variation in the time of ear emergence among wheat varieties from different regions of the world
TLDR
Most of the accessions from low latitude regions reached ear emergence rapidly owing to their insensitivity to photoperiod and vernalization and earliness per se factors accelerating ear emergence, which was common among accession from Northern Europe, Afghanistan and Turkey.
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Introgression of resistance to root-knot nematodes from wild Central American Solanum species into S. tuberosum ssp. tuberosum
Abstract Crossing experiments were conducted to introduce resistance to the root-knot nematodes, Meloidogyne chitwoodi and M. fallax, from various polyploid Central American Solanum spp. into the…
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Dominant and additive resistance to the root-knot nematodes Meloidogyne chitwoodi and M. fallax in Central American Solanum species
TLDR
The inheritance of resistance to Meloidogyne chitwoodi and M. fallax in Solanum fendleri, S. hougasii and S. stoloniferum was studied and clearly indicates the action of a single dominantly inherited gene, and the symbol RMc2 is proposed for this gene.
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Effects of differences in date of ear emergence and height on yield of winter wheat
TLDR
It is concluded that for general fitness to U.K. conditions, new varieties should be semi-dwarf, but earlier than current varieties.
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Components of partial resistance to potato blackleg caused by pectolytic Erwinia carotovora subsp. atroseptica and E. chrysanthemi
TLDR
It was concluded that if results of this study are extrapolated to any set of potato clones, selection for resistance in breeding programmes under laboratory or glasshouse conditions would be most efficient when directed to clonal differences for stem base resistance.
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Differences in Leaf and Stem Anatomy Related to Plant Height of Tall and Dwarf Wheat (Triticum aestivum L.)
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