Table 1. Characteristics of Pyrus calleryana cultivars
AristocratAutumn BlaseBradfordCapitalCleveland SelectEarly redFaurieiRed-spireWhite housePvrus calleryana
Planted in test1980198119801984198419831983198319841980
Height growth by 1989, mz7.4-6.95.15.25.05.35.84.47.8
Avg annual height growth,cm68566475775969756080
Caliper growth by 1989,cm23-221010111313819
Avg annual caliper growth,cm2.31.42.21.51.61.51.81.81,22.1
Tiao of floweringyMM-LMEM-MMEM-MMEM-MMEM-MMEM-MMEM-MMEM-MMMM-LMEM-MM
Duration of flowering,days7-107-107-107-107-107-107-107-107-107-10
Interesting fall colorx-rr-y-oy-oy-oOoy-oy-oy-o
Time of fall colorm-LO-ENMN-LNMN-LNMN-LNMN-LNMN-LNMN-LNMN-LNMN-LN
Fruitingyesnonononononoyesnoyes
Problems, fireblightheavyheavy spineslightlightlight leaf spotvheavylightlightlight1ight leaf spot
  • z Height and caliper measured October 1989; all Autumn Blaze ware dead. Existing Autumn Blaze were Measured October 1988.

  • y Time of flowering coded by EM - early March, MMN - mid-March, LM - late March.

  • k Fall color coded by r-red, y»yellow, o»orange.

  • m Time of fall color coded by LO - late October, EN ≡ early November, MN - raid-November, LN - late November.

  • v aitemayia spp. leaf spot.