摘要
选用柿极晚熟品种宫崎无核,于果实发育第二期末(10月19日),叶面喷施100ppm的GA_3明显地抑制了果实的肥大生长、着色、糖的积累及果肉软化。对果实内源GAs活性和ABA含量进行分析的结果表明,叶面喷施GA_3使内源GAs活性大大提高,同时使ABA的增加受到抑制。与GA_3处理相反,果实发育第三期(10月1日),对中熟品种富有进行25ppm乙烯利的叶面喷施处理,明显地促进了果实的成熟,其作用尤以促进着色、加速果实软化最为明显。对内源GAs活性及ABA含量亦有明显影响,前者因乙烯利处理而降低,后者则因乙烯利处理而增大。
Foliar spray of GA8 ( l00mg/ 1 ) on a Japanese persimmon'Miyaza-ki-tanenashi' ( a very late-maturing cultivar ) at the end of stage Ⅱ of fruit growth ( 19, Oct. ) inhibited the development of fruit maturation, fruit growth, coloration, sugar accumulation and the increase of endo -genous ABA content, but increased endogenous GAs like activity. On the other hand, spray of ethrel ( 25mg/l ) on another mid maturing cultivar 'Fuyu' at the begining of stage Ⅲ(1, Oct. ) hastened fruit maturation and the decline of endogenous GAs like activity, but promoted fruit eo-loration, softening, sugar accumulation and increased the contents of reducing sugars and endogenous ABA. The relationship between the plant growth regulators and fruit maturation was discussed in detail.
出处
《园艺学报》
CAS
CSCD
北大核心
1991年第3期193-197,共5页
Acta Horticulturae Sinica
关键词
赤霉素
乙烯利
脱落酸
果实成熟
柿
GA3
Ethrel
Endogenous GAs and ABA
Maturation
Diospyros kaki L.
