The seedless trait in kinnow fruit
2007
Altaf, N. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan)) | Khan, A.R. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan))
The seedless trait in Kinnow mandarin (Citrus reticulata) is desirable because of natural factors like ovule, pollen and pollen self-incompatibility. Various degrees of ovule sterility are present in Kinnow plants. The collapse of the developed ovules as rudiments of seeds in fruits is because of embryo abortion. The In vitro pollen germination on agar medium is around 18% in selected low seeded plants. Some plants have pollen self-incompatibility. The fruit-set in start of May was 23, 9 and 43 percent in self-pollination (SP) with Gibberellic Acid (GA) spray, SP without GA spray and in open pollination (OP) respectively. The fruit set in end of July was reduced to 8, 2 and 22% respectively. The fruit abscission was highest (82%) in SP without GA spray and the minimum fruit abscission was 48% in OP in these plants. The June fruit drop was variable in Kinnow germplasm in high-density plantation. The seedless trait (0-6 seeds/fruit) was found in all three types of plants originated from bud radiation, sprouts and embryonic seedlings.
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