Eleven microsatellite(SSR)markers were used to evaluate the genetic diversity and paternal parents of a seed orchard for Pinus massoniana planted at Wuyi Forest Farm,Fujian *** seed orchard contains 286 open_pollinate...
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Eleven microsatellite(SSR)markers were used to evaluate the genetic diversity and paternal parents of a seed orchard for Pinus massoniana planted at Wuyi Forest Farm,Fujian *** seed orchard contains 286 open_pollinated progenies derived from 129 candidate paternal clones and three maternal *** the parental and progeny populations displayed high genetic diversity(h),with the estimated h values of 0.543 8 and 0.455 6,*** clones contributed differently to the progeny;only 5.3%～15.8% clones contributed 27.08%～48.96% *** strikingly,one paternal clone contributed 10% and 17% pollen,respectively,to two maternal *** was found that the mating compatibility of a clone was not related to its *** was no significant influence of the physical location of a clone on the amount of paternal constituent and genetic *** rate of contamination by pollen outside the seed orchard was as high as 9.44%.No selfing progeny was observed,suggesting that selfing depression will not be an issue in the seed orchard of ***.
The white rust,caused by Puccinia horiana was one of the most important epidemic diseases on Chrysanthemum,and also was a quarantine action pest in the *** determined the teliospores germinating biology of *** : the t...
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The white rust,caused by Puccinia horiana was one of the most important epidemic diseases on Chrysanthemum,and also was a quarantine action pest in the *** determined the teliospores germinating biology of *** : the teliospores were germinated between 4 ℃ and 32 ℃,while the optimum temperature range was 15 ℃ to 24 ℃,especially between 18 ℃ and 21 ℃.Water was necessary for the teliospores *** free water,it couldn’t germinate in 24 h,even with 100 % *** propriety of pH for germination was pH 4 to 6.5, while pH 6 was the most favorite.2 % glucose solution promoted the germination of the teliospores evidently,whereas the fresh juice of chrysanthemum foliages restrained it *** didn’t influence on the germination.
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