Increased percentage of fruit set of F1 hybrid of Capsicum chinense during high-temperature period
Increased percentage of fruit set of F1 hybrid of Capsicum chinense during high-temperature period
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高温期辣椒杂交F1坐果率提高
DOI：
10.1016/j.scienta.2018.08.049
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发表时间：
2019
影响因子：
4.3
通讯作者：
Yamazaki A and Hosokawa M
中科院分区：
文献类型：
--
作者：
Kikuchi;M. and Tanaka;M.;Yamazaki A and Hosokawa M
日光温室栽培的番茄、茄子等果类蔬菜坐果率低。甜瓜（melongena）和辣椒（Capsicum）在高温季节的病害已被报道为商业蔬菜生产中的最大问题之一。在本研究中，C.在日光温室中栽培了一年的‘Sy-2’和‘3686号’。在高温季节（40 °C/25 °C：白天/夜晚）获得显著低的坐果百分比（分别为3.2%和0%）。但在秋冬季节（30 °C/20 °C），随着温度的降低，座果率有所恢复。另一方面，在F1（'Sy-2' × 'No.3686'）中，即使在高温季节，座果率也为40.8%。花粉离体萌发试验表明，高温季节F1花粉萌发率高于Sy-2和3686。Sy-2与Sy-2、3686号花粉异花授粉后，坐果率分别为23.3%和0%。Sy-2与F1花粉异花授粉的坐果率较高（73.3%）。F_1自花授粉的坐果率（56.7%）高于用Sy-2和3686号花粉异花授粉的坐果率。有趣的是，3686号与Sy-2、3686号和F1代花粉异花授粉均未坐果。“3686号”的结果表明，不仅雄性因素影响花粉萌发能力，而且未知的雌性因素也参与了降低C座果率的作用。中国人在高温季节。3686号与Sy-2号正反交F_1在高温季节的座果率也有显著提高。在温室条件下，（3686 × Sy-2）× Sy-2（10株）和Sy-2 ×（3686 × Sy-2）（31株）的坐果率无显著差异。因此，我们的研究结果表明，细胞质因子（S）不影响座果率。
Low percentage of fruit set in fruit vegetables cultivated in greenhouses, such as tomato (Solanum lycopersicum), eggplant (S. melongena), and capsicum (Capsicum), in high-temperature seasons has been reported as one of the biggest problems in commercial vegetable production. In this study,C. chinense‘Sy-2’ and ‘No. 3686’ were cultivated in greenhouses for a year. Remarkably low percentages of fruit set (3.2% and 0%, respectively) were obtained in the high-temperature season (40 °C/25 °C: day/night). However, the percentage of fruit set was recovered with the decrease in temperature in autumn and winter (30 °C/20 °C). On the other hand, in F1(‘Sy-2’ × ‘No. 3686’), the percentage of fruit set was 40.8% even in the high-temperature season. Onin vitropollen germination test, the pollen of F1was found to have a higher germination rate than that of ‘Sy-2’ or ‘No. 3686’ during the high-temperature season. After ‘Sy-2’ was cross-pollinated with ‘Sy-2’ and ‘No. 3686’ pollen, percentages of fruit set were 23.3% and 0%, respectively. It is noteworthy that the cross-pollination of ‘Sy-2’ with F1pollen resulted in a considerably higher percentage of fruit set (73.3%). When F1was self-pollinated, the percentage of fruit set (56.7%) was higher than that after when cross-pollinated with ‘Sy-2’ or ‘No. 3686’ pollen. Interestingly, no fruit set was obtained when ‘No. 3686’ was cross-pollinated with ‘Sy-2’, ‘No. 3686’, or F1pollen. The results for ‘No. 3686’ indicated that not only does the male factor affect pollen germination ability but also unknown female factors are involved in reducing the percentage of fruit set ofC. chinenseunder the high-temperature season. A significant increase in the percentage of fruit set in the high-temperature season was also observed in the reciprocal cross of F1, ‘No. 3686’ × ‘Sy-2’. Furthermore, 10 plants of (‘No. 3686’ × ‘Sy-2’) × ‘Sy-2’ and 31 plants of ‘Sy-2’ × (‘No. 3686’ × ‘Sy-2’) were cultivated in a greenhouse, but no difference was found in the percentage of fruit set between these two combinations. Therefore, our findings suggest that cytoplasmic factor(s) does not influence the percentage of fruit set.
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影响因子：
1.9
作者：
DEPONTI, OMB
通讯作者：
DEPONTI, OMB
影响因子：
4.3
作者：
Reddy, K. Raja;Kakani, V. G.
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DOI：
--
发表时间：
1995
期刊：
影响因子：
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56.9
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DOI：
--
发表时间：
2012
期刊：
--
影响因子：
--
作者：
R. Garruña;A. Canto;Javier O. Mijangos;Ignacio Islas;Luís;R. Orellana
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