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Table 5 Outcome of emasculation trials. Numerator and denominator indicate bunches that set fruit after treatment and covering and starting inflorescences, respectively. Occasional normal seeds from the bunches in boldface were put to germinate and the seedlings were genotyped with microsatellite markers

From: Somatic variants for seed and fruit set in grapevine

Accession Collection Year, stage and pollination treatment
2012 2013 2014
Stage II Stage II Stage II
SP EMS+ST SP EMS+ST EMS-ST SP EMS+OP EMS+STa EMS-ST
Sangiovese R24 IPSP, FEM 4/4 4/4 4/4 6/7 1/1 5/5   5/5 1/1
Corinto Nero IPSP 4/4 5/5 4/4 3/4   5/5 1/1 4/5 1/1
Chasselas Blanc FEM 2/2 0/4 2/2 0/4      
Chasselas apyrène FEM 2/2 0/4 2/2 0/4      
Pedro Ximenez FEM 2/2 0/4 2/2 0/4      
Corinto Bianco FEM 1/1 0/2        
Nebbiolo IPSP    4/4 1/4   4/5   0/5  
Trebbiano Toscano FEM   0/1   0/1      
Gamay IPSP    5/5 4/5   4/5   6/6  
Gouais (syn. Liseiret) FEM     0/4      
Accession Collection Year, stage and pollination treatment
2015 2016 2019
Stage I Stage II Stage I Stage II Stage II
SP EMS+ST SP EMS+ST EMS-ST SP EMS+ST EMS-ST SP EMS+ST EMS-ST OP EMS+ST
Sangiovese R24 IPSP, FEM 3/3 0/2 4/4 3/4 1/3 1/1 0/5 0/5 1/1 4/5 2/5 5/5 3/5
Corinto Nero FEM             5/5 3/7
Nebbiolo FEM       1/1 0/2 0/2 1/1 0/2 0/2   
Gamay IPSP, FEM 3/3 2/2 4/4 2/2 1/2 1/1 0/2 1/2 1/1 2/2 1/2   
Grenache IPSP 3/3 0/4   0/3 0/2         
  1. Abbreviations: SP self-pollination, EMS+ST emasculation without sigma removal, EMS-ST emasculation with stigma removal, EMS+OP emasculation without covering, stage I and II E-L 15 and E-L 18, respectively, according to Eichhorn and Lorenz scheme [54]
  2. aThis category includes partial stigma damage (from 5 to 50%) for Sangiovese, Corinto Nero, Nebbiolo and Gamay at IPSP in 2014