6Kristiansen K,Anderseri S B.Effects of donor plant temperature,photoperiod and age on anther culture response of Capsicum annuum L.[J].Euphytica,1993,67:105-109.
7Ercan N,Sensoya F A,Sensoy A S.Influence of growing season and donor plant age on anther culture response of some pepper cultivars (Capsicum annuum L.)[J].Scientia Horticulturae,2006,110:16-20.
8Takahata Y,Brown D C W,Keller W A.Effect of donor plant age and infloescense age on microspore culture of Brassica napus[J].Euphytica,1991,58:51-55.
9Liu C A,Douches D S.Production of hapoids of potato (Solanum tuburosum subsp.tuberosum) and their identificationwith electrophoretic analysis[J].Euphytica,1993,70:113-126.
10Nitsch J P,Nitsch C.Haploid plants from pollen grains[J].Science,1969,163(3862):85-87.
