Germinability of Embryos during Seed Development in Citrus (Rutaceae)

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概要

• 論文の詳細を見る

• Germinability during embryo development was investigated om 5 Citrus cultivars with different degree of polyembryony and earliness of fruit ripening. Mature embryos extracted from fruits of the 5 cultivars on January 15 germinated on water by 3 days after sowing (DAS). In these cultivars, germination rates of embryos from green fruits collected in the middle of september were very low, increased rapidly in those collected in the late of September and erached 100% by 3.5 DAS in those extracted in October. The increase of germination rate was different in different cultivars. In satsuma mandarin, embryos of early ropening 'Okitsuwase' was preceded in growth and germinated about two weeks faster than those of middle ripening 'Hayashi Unshiu'. 'Hassaku' embryos showed the fastest germinationi rate whereas highly polyembryonic 'Seminole' embryos showed the slowest rate. It was estimated from those results that embryos matured in the early of October for 'Okitsuwase', the middle of October for 'Hayashi Unshiu' and 'Hassaku', the late of October for 'Kawano Natsudaidai' and the early of December for 'Seminole'. In polyembryonic mature seeds, alone and combined applications of 1 mg/l GA3 and 20mg/l adenine solutions increased the number of germinated embryos per seed. Germination of the immature embryos with low germinability was enhances by light (3000 luxes), MS medium, adenine (10-100mg/l), gibberelin (GA3 1-10mg/l) and combinaiton of these factors. These results may contribute to the efficient cross breeding in Citrus.

• 九州大学の論文

著者

• Ngo Binh

  Laboratory of Agricultural Ecology,Division of Plant Resources,Graduate School of Bioresource and Bi

• Wakana Akira

  Laboratory of Agricultural Ecology,Division of Plant Resources,Graduate School of Bioresource and Bi

• Ngo Binh

  Laboratory Of Fruit Tree Science University Farm Faculty Of Agriculture Kyushu University

• Wakana Akira

  Laboratory Of Horticultural Science Division Of Agricultural Botany Department Of Plant Resources Fa

• Wakana Akira

  Laboratory Of Agricultural Ecology Division Of Plant Resources Graduate School Of Bioresource And Bi

• Ngo Binh

  Laboratory Of Agricultural Ecology Division Of Plant Resources Graduate School Of Bioresource And Bi

• Iwamasa Masao

  Laboratory of Fruit Tree Science,Faculty of Agriculture,Saga University

• Iwamasa Masao

  Laboratory Of Fruit Tree Science Faculty Of Agriculture Saga University

関連論文

• Pollen tube behaviors in self-incompatible and self-compatible Citrus cultivars
• Seed Abortion in Crosses between Diploid and Tetraploid Grapes (Vitis vinifera and V. complex) and Recovery of Triploid Plants through Embryo Culture
• Degree of Abortion and Germination Rates in Triploid Seeds from Crosses between Diploid and Tetraploid Grapes (Vitis vinifera L. and V. complex)
• Estimation of the Degree of Self-incompatibility Reaction during Flower Bud Development and Production of Self-fertilized Seeds by Bud Pollination in Self-incompatible Citrus Cultivars
• Germinability of Embryos during Seed Development in Citrus (Rutaceae)
• Most Hypotetraploid Seedlings from Self-Pollinated Tetraploid Grapes ( Vitis complexes) Have Abnormal Cotyledons
• Production of Triploid Plants from Crosses between Diploid and Tetraploid Grapes (Vitis complex) through Immature Seed Culture and Subsequent Embryo Culture

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