NDLI: Selection of Rice Lines Using SPGP Seedling Method for Direct Seeding

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Volume 21, 2018

Volume 20, 2017

Physio-morphological Studies of F1 Hybrids in Rice (Oryza sativa L.): Photosynthetic ability and yield

Relationship between Endogenous Abscisic Acid Level and the Appearance of “MC type” Rice Seedlings

Rooting Nodes of Deep Roots in Rice and Maize Grown in a Long Tube

Non-destructive Method for Root Elongation Measurement in Soil Using Acoustic Emission Sensors: II. Spatial measurement of single root elongation

The Effect of Day to Night Temperature Variation on Leaf Development in Wheat

Analysis of Spike Development of Three Spring Wheat Genotypes under Various Cultural Conditions

Seed Weight of Nodulating and Non-nodulating Soybeans at Different Nitrogen Levels and Years

Analysis of Spectral Measurements in Paddy Field for Predicting Rice Growth and Yield Based on a Simple Crop Simulation Model

Selection of Rice Lines Using SPGP Seedling Method for Direct Seeding

A simple Method for Selection of Potato Lines with a Higher Root/Total Ratio at an Early Stage in the Seedling Generation

Ultrastructural Analysis of Electrofused Protoplasts from Pansy and Wild Viola by Scanning Electron Microscopy

Difference with Rice Cultivars in the Rate of Root Regeneration from Embryo Callus andIts Relationship with the Genetic Background

Volume: 1 Issue: 3

Volume: 1 Issue: 2

Volume: 1 Issue: 1

Selection of Rice Lines Using SPGP Seedling Method for Direct Seeding

Content Provider	Taylor & Francis Online
Author	Yoshida, Tomohiko Won, Jong Gun Hirahara, Yuuiti Imabayashi, Souichirou
Abstract	Lodging is a major cause of yield loss in the rice production systems using direct seeding. In this study, several characteristics of 80 F4 breeding lines and 10 check cultivars were examined in connection with lodging resistance to establish a technique suitable for screening a large number of lines efficiently for breeding rice for direct seeding. Experiments were conducted over a 2-year period in puddled wet-fields and in seed pack growth pouches (SPGP). Among the root parameters of SPGP seedlings, only root thickness had a significant positive correlation (r = 0.495) with pushing resistance, which is the force to bend rice culm to a designated angle and is correlated with lodging resistance. The root thickness of SPGP seedlings was also positively correlated with root thickness in the field at 18 (r = 0.346) and 30 (r = 0.512) days after seeding. For selected lines and check cultivars, positive correlations were found between pushing resistance and culm thickness in the field (r = 0.809), between pushing resistance and root thickness in SPGP (r = 0.694). Culm length and panicle number were negatively correlated with pushing resistance (r=–0.454, r=–0.563, respectively). Among the characteristics related to lodging, root and culm thickness were higher in selected breeding lines than in check cultivars. Grain yield was positively correlated with panicle weight (r = 0.601) and harvest index (r = 0.586**) but not with panicle number (r=–0.007ns). Thus the low-tillering, panicle-weight type plants with thick roots and culms seem to be suitable for direct seeding. Some promising lines and candidate parental lines for the next crossing cycle for direct seeding were identified.
Starting Page	280
Ending Page	285
Page Count	6
File Format	PDF HTM / HTML
ISSN	1343943X 13491008
DOI	10.1626/pps.1.280
Journal	Plant Production Science
Volume Number	1
Issue Number	4
Language	English
Publisher	Taylor & Francis
Publisher Date	2015-12-03
Access Restriction	Open
Subject Keyword	Direct seeding Rice Root thickness Seed pack growth pouch Selection
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science

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Progress in the study of functional genes related to direct seeding of rice.

Mapping of QTLs controlling seedling establishment using a direct seeding method in rice

Rice Direct Seeding Method with Recycled-paper Mulching

The effects of mixed direct seeding of parental lines with different hull colors on the seed production of hybrid rice

【Short Report】Improvement of Rice Seedling Establishment on Sulfate-Applied Submerged Soil by Seed Coating with Poorly SolubleMolybdenum Compounds

Establishment of Rice Seedlings by Direct Sowing of Multiple Seed Pellets on Paddy Soil Covered with Legume Living Mulch

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Selection of Rice Lines Using SPGP Seedling Method for Direct Seeding

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Progress in the study of functional genes related to direct seeding of rice.

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