Department of Agronomy, University of California, Davis, California 95616.
Plant Physiol. 1972 Apr;49(4):644-8. doi: 10.1104/pp.49.4.644.
Abscisic acid was measured in developing cotton fruit (Gossypium hirsutum) by means of gas-liquid chromatography. High levels of abscisic acid occurred in correlation with abortion and abscission of young fruit, with low germination of immature seed, and with senescence and dehiscence of mature fruit. Declining or low levels of abscisic acid occurred in correlation with the period of most rapid fruit growth and with high germination of immature and mature seed. Young fruit of cultivar Acala 4-42 contained about twice as much abscisic acid as young fruit of cultivar Acala SJ-1, and this difference is correlated with a higher rate of young fruit abscission in Acala 4-42. Young fruit abscising late in the fruiting season contained about twice as much abscisic acid as young fruit abscising early in the fruiting season.
用气相色谱法测定了发育中的棉花果实（陆地棉）中的脱落酸。脱落酸含量高与幼果败育和脱落、未成熟种子发芽率低以及成熟果实衰老和开裂有关。脱落酸含量下降或低与果实生长最快的时期以及未成熟和成熟种子高发芽率有关。品种 Acala 4-42 的幼果中脱落酸含量约为品种 Acala SJ-1 的幼果的两倍，这一差异与 Acala 4-42 中幼果脱落率较高有关。生殖季节后期脱落的幼果中脱落酸含量约为生殖季节早期脱落的幼果的两倍。
