摘要
兼性单性结实番茄Severianin,RP75/59,PSet 1,Oregon Spring和Santiam可在不利环境条件下自然结果,但用植物生长调节剂点花能显著促进结果,而非单性结实番茄在相同条件下自然坐果率极低。人工蕾期辅助授粉能显著提高单性结实番茄的坐果率和单果种子数,并降低其单性结实率。去雄处理导致 Severianin和Oregon Spring的坐果率显著降低,而去雄同时授无生活力花粉能使 RP75/59的坐果率显著提高,但这两处理对其它品种的坐果率无明显影响。单性结实番茄的单果重与果内有无种子以及种子多少无明显相关,但大果型品种OregonSpring无籽果实有更高的平均单果重。
The facultative parthenocarpic tomato cultivars' Severianin' , ' RP75/ 59' ' PSet- 1' ' Oregon Spring' and' Santiam' are able to set fruits naturally in unfavorable environment, fruit setting can also be increased significantly with the application of growth regulator (2,4-D) , while the non-parthenocarpic cultivar' Beijing Zhaohong' does not set fruits well in the same condition; Hand pollination at bud stage (1 ~ 2days before anthesis) significantly increases fruit- set, number of seeds per fruit and reduces percentage of seedless fruits in parthenocarpic tomatoes. Emasculation only and emasculation plus dead pollens result in significant reduction of fruit- set in' Severianin' and' Oregon Spring' , but significant increase of fruit- set in' RP75 / 59'. There is no positive correlation between fruit weight and number of seeds per fruit in parthenocarpic cultivars with the exception of ' Oregon Spring' in which the seedless fruits are heavier significantly than the seeded fruits.
出处
《园艺学报》
CAS
CSCD
北大核心
1993年第4期369-373,共5页
Acta Horticulturae Sinica
关键词
番茄
结果
发育
Tomato (Lycopersicon esculentum Mill. )
Facultative parthenocarpy
Seeded and seedless fruits
Fruit-set
