A Uniform, Objective, and Adaptive System for Expressing Rice Development

Wiley - Tập 40 Số 2 - Trang 436-443 - 2000
Paul A. Counce1, T. C. Keisling2, Andrew J. Mitchell2
1University of Arkansas Rice Research and Extension Center P.O. Box 351 Stuttgart AR 72160 USA
2Stuttgart National Aquaculture Research Center P.O. Box 860 Stuttgart AR 72160 USA

Tóm tắt

The large area of rice (Oryza sativa L.) production worldwide is critical to the well being of large numbers of the world's people. Yet for rice, the most important single plant species for human nutrition, there is not a widely used growth staging system. Despite good points of the published rice growth staging systems, none has been used widely for describing rice growth and development. Consequently, an objective growth staging system with enumeration adapted to cumulative leaf number (CLN) would improve communication among scientists, farmers, and educators. We propose a rice developmental staging system divided into three main phases of development: seedling, vegetative, and reproductive. Seedling development consists of four growth stages: unimbibed seed (S0), radicle and coleoptile emergence from the seed (S1, S2), and prophyll emergence from the coleoptile (S3). Vegetative development consists of stages V1, V2 … VN; N being equal to the final number of leaves with collars on the main stem. Reproductive development consists of 10 growth stages based on discrete morphological criteria: panicle initiation (R0), panicle differentiation (R1), flag leaf collar formation (R2), panicle exertion (R3), anthesis (R4), grain length and width expansion (R5), grain depth expansion (R6), grain dry down (R7), single grain maturity (R8), and complete panicle maturity (R9). Assigning rice growth stages based on discrete morphological criteria will result in unambiguous growth‐stage determination. For example, using this system, two people staging the same plant will arrive at the same growth stage. This is because the system exploits the presence or absence of distinct morphological criteria in a symbolic logic dichotomous framework that only permits yes or no answers.

Từ khóa


Tài liệu tham khảo

Counce P.A., 1998, Proceedings of the 27th Rice Technical Working Group, 9

FeekesW.De tarwe en haar milieu. Vers. XVII Tech. Tarwe Comm. Groningen 560‐1.1941

Fehr W.R., 1979, Stages of soybean development

10.2134/agronj1963.00021962005500050024x

Hanway J.J., 1966, How a corn plant develops

10.2134/agronj1973.00021962006500010035x

10.2134/agronj1964.00021962005600050014x

Hoshikawa K., 1989, The growing rice plant: An anatomical monograph

IRRI, 1980, Standard evaluation system for rice

Jean R.V., 1994, Phyllotaxis: A systemic study of plant morphogenesis, 10.1017/CBO9780511666933

10.1111/j.1744-7348.1991.tb04895.x

Langer R.H.M., 1972, How grasses grow

Matsuo T., 1993, Science of the rice plant. Vol. 1. (Morphology)

10.1016/S0065-2113(08)60053-X

10.2135/cropsci1995.0011183X003500010005x

10.2135/cropsci1995.0011183X003500010008x

10.2135/cropsci1995.0011183X003500010001x

10.1111/j.1365-3180.1974.tb01084.x

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Wiley

Tập 40 Số 2

436-443

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