| 油初始坐果机制研究 |
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| 作者单位： | 福建农林大学园艺学院 福建福州350002 |
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| 摘 要： | 以成年油木奈树为材料,对其初始坐果进行了研究。结果表明,盛花后2周内,油木奈出现大量的落花落果;幼果(子房)低水平的GA1 3与油木奈的落花落果高峰关系密切,而内源细胞分裂素ZRs和diH]ZRs以及ABA与幼果(子房)的生长呈显著的正相关;初始坐果期,油木奈的雌配子体发育缓慢,且有相当数量的胚囊中途退化、败育,无法正常受精,从而导致其大量的落花落果。文中就油木奈的初始坐果机制进行了讨论。
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| 关 键 词： | 油木奈 初始坐果 GA1 3 CTKs ABA 雌配子体 |
Studies on the Mechanism of Initial Fruit Set in Younai(Prunus salicina Lindl var.) |
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| Authors: | Guo Zhixiong Pan Dongming Chen Guixin Lv Liuxin |
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| Abstract: | Some aspects on the initial fruit set in Younai(Prunus salicina Lindl var.cordata J Y Zhang et al) were studied.The results showed that,large amount of flower/fruitlet drop occurred within 2 weeks after full blossom;low content of GA1 3 was closely correlated to the peak of fruit drop,however,the contents of endogenous zeatin ribosides(ZRs),dihydrozeatin ribosides(ZRs) and abscisic acid(ABA) were significantly positive correlated to the growth of fruitlet(ovary);during the initial fruit set of Younai,quite a few of female gametophytes degenerated or aborted,and,the developmental process was slow after anthesis,which therefore,blocked fertilization and resulted in flower/fruitlet abscission.The mechanism of initial fruit set in Younai was discussed in this paper. |
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| Keywords: | Younai(Prunus salicina var ) Initial fruit set GA1 3 CTKs ABA Female gametophyte |
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