Reduction of Seed Number in Chandler Pummelo
Studies of pollination of self-incompatible pummelo cv. Chandler, and field experiments with GA, N AA and some bee repellents were conducted in attempts to decrease seed number, because seedless fruit or those with very few seeds are very desirable in the fresh fruit market. Pollen from several varieties was applied to normal or emasculated Chandler pummelo planted in solid blocks to investigate the possibility of increasing fruit set of fruit with few or no seeds. Within the parent pollen, we also investigated the possibility of selfpollination, although early findings indicated that this variety is self-incompatible , and exhibits variable parthenocarpic ability. The varied seed numbers found in self-pollinated Chandler were unexpected and indicated that honeybees could have been pollinators. Application of GA on the ovule or as a foliar spray at pre-anthesis,or at early or mid and late bloom decreased seed number, not always significantly ,depending on the time of application. Application of NAA as a foliar spray at the same growth stage as that of GA did not decrease seed number and its effect was significantly different from that of GA. Amistar,a possible bee repellent,showed a tendency to decrease seed number compared with the control and was more effective than CuSO4 or Saferol. These results demonstrate the need for further investigation to evaluate which of the treatments might be useful in practice.
Seedless Fruit set and size Plant growth regulators
Y. Erner E. Israeli E. Tagari S. Shmueli
ARO,the Volcani Center,Dept. of Fruit Tree Sciences,POB 6,Bet Dagan 50250,ISRAEL
国际会议
11th International Citrus Congress(第11届国际柑橘大会)
武汉
英文
542-546
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）