福建农业学报2024，Vol.39Issue(11)：1248-1255,8.DOI:10.19303/j.issn.1008-0384.2024.11.006
软枣猕猴桃雄株不同发育阶段花粉特性及加工工艺优化
Pollen Characteristics and Processing Technology Optimization of Male Actinidia arguta at Flower Development Stages
摘要
Abstract
[Objective]Contents,vitality,and optimal preservation conditions of male Actinidia arguta pollens at flowering stages were studied.[Method]Average amounts and viability of the pollens in the flower buds of an A.arguta Liaonong 3-1 plant in 5,4,3,2,1 d before and 1d after flowering were compared.Prior to dehydration,the collected buds were either used as it with no pretreatment(CK),broken in half by hand one at a time,manually picked for anthers,or mechanically homogenized for 3 s,2 s or 1 s(in the homogenizer).Rates of flower bud dehydration and pollen viability retention at drying temperatures of 22℃,25℃,and 28℃ were measured.[Result]As the flowers developing on the plants,amount of pollens rapidly increased to reach a maximum of 1.276%by weight 2 d before flowering.Anthers-picking drastically reduced the subsequent pollen production on a plant.A quadratic power function on pollen collection was observed.Homogenizing flower buds for 1 s helped release the pollens facilitating pollen drying in the dehydration and impurity reduction in the final pollen collection.In dehydration,higher temperature hastened the process,and the evaporation slowed down gradually after the relative dry weight of the buds fell below 23%.At 28℃,the relative dry weight of the flower buds could be brought to 22.98%in 13 h with no significant difference on pollen vitality from what was achieved by drying at 22℃ or 25℃.[Conclusion]Male A.arguta flower buds could be collected 2 d before flowering to be homogenized for 1s and dried at 28℃ for 13 h to obtain large quantities of highly vital,fine powder pollens.关键词
软枣猕猴桃/雄株/花粉/散粉特性Key words
Actinidia arguta/male plant/pollen/loose powder characteristics分类
农业科技引用本文复制引用
杜玉虎,楚明,齐边斌,张力飞,赵峰松,王兴国,翟秋喜..软枣猕猴桃雄株不同发育阶段花粉特性及加工工艺优化[J].福建农业学报,2024,39(11):1248-1255,8.基金项目
辽宁省教育厅高校基本科研项目(LJKZ1216) （LJKZ1216）
辽宁省科技特派行动专项计划项目(2024JH5/10400108) （2024JH5/10400108）
