Study on the Biological Character of Flowering of Ancient Male Ginkgo biloba Trees in Henan Province(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on the Biological Character of Flowering of Ancient Male Ginkgo biloba Trees in Henan Province

Author(s):: WANG Guoxia1; YANG Yuzhen1; LUO Qing1; CHEN Lipei1; LIU Ruixia1; ZHANG Ning2; (1.School of Life Science，Zhengzhou Normal University，Zhengzhou，Henan 450044；2.Forestry College,Henan Agricultural University,Zhengzhou,Henan 450002）

Abstract:: The flowering biological character of male ginkgo trees was studied in Henan Province，the flowering period，the length of spica，the width of spica，the anther number of spica of 14 ancient male ginkgo trees was investigated and analyzed.The results showed that the flowering period of male ginkgo trees ranged from late March to middle April and flowering lasted for 3-7 days；the length of spica ranged from 21.33 mm to 31.36 mm and the average number was 27.74 mm；the width of spica ranged from 5.81 mm to 7.90 mm and the average number was 6.94 mm；the anther number of spica ranged from 39.80 to 56.17 and the average number was 50.15；the length of pollen ranged from 30.05 μm to 34.66 μm and the average number was 33.47 μm；the width of pollen ranged from 13.93 μm to 17.73 μm and the average number was 15.32 μm.The results indicated that the flowering period，the number of flower spikes on short shoot，the length of spica，the width of spica and the anther number of spica of ancient male ginkgo trees were all significant differences.

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Last Update: 2015-11-04