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Publication Type:
| Report |
Author(s): | Komatsu, T.;
Shimizu, N.;
Susuki, S. |
Author Affiliation: | National Grassland Res. Inst., Nishinasuno, Tochigi 329-27, Japan |
Title: | Studies on development and ripening of seeds in temperate grasses. 1 Seed development and ripening of Italian ryegrass, and changes in germination and seedling vigour during seed development and ripening |
Source: | Bulletin of the National Grassland Research Institute. No. 15, 1979, p. 59-69. |
Keywords: | TIC Keywords: Lolium multiflorum; Seeds; Developmental stages
|
Geographic Terms: | Japan |
Abstract/Contents: | Italian ryegrass cv. Nasuhikari was grown in pots in natural conditions and transferred to day/night temp. of 20/10 deg C at the beginning of flowering. Changes in fresh and dry wt., seed m.c., embryo size and morphology, caryopsis size and endosperm characters were used to divide seed development into 5 stages covering the period from flowering to more than or equal to 40 days after flowering. Germination, seedling vigour, shoot dry wt., tiller number, leaf area and number and plant ht. of plants from seed harvested at various stages showed that the opt. stage for seed harvest was at the end of the developmental stage from 20 to 28 days after flowering, during which seed fresh wt. was max., seed dry wt. increased rapidly, seed m.c. was (50% and endosperm was at the milk or dough stage. Seed shedding occurred at the end of this period. |
Language: | Japanese |
References: | 30 |
Note: | Summary appears in English |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Komatsu, T., N. Shimizu, and S. Susuki. 1979. Studies on development and ripening of seeds in temperate grasses. 1 Seed development and ripening of Italian ryegrass, and changes in germination and seedling vigour during seed development and ripening. (In Japanese) Bull. Natl. Grassl. Res. Inst. 15:p. 59-69. |
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