Physiological Response of Local Rice Varieties to Aerobic Condition

被引：0

作者：

Mahmod, Intan Filzah ^{[1
]}

Barakbah, Syed Shahar ^{[1
]}

Osman, Normaniza ^{[1
]}

Omar, Othman ^{[2
]}

机构：

[1] Univ Malaya, Fac Sci, Inst Biol Sci, Kuala Lumpur 50603, Malaysia

[2] Mardi Stn Seberang Perai, Kepala Batas 13200, Penang, Malaysia

来源：

INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY | 2014年 / 16卷 / 04期

关键词：

Rice; Aerobic condition; Growth; Yield; Water stress; WATER-USE EFFICIENCY; ORYZA-SATIVA L; YIELD; GROWTH; WHEAT; CULTIVATION; STRESS;

D O I：

暂无

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Cultivated rice under aerobic condition typically decreases both growth and yield. The experiment was carried out at MARDI Bertam, Seberang Perai to investigate the growth performances of different rice varieties; MRQ74, MR253 (adapted aerobic rice), MR232 (lowland rice). The objective was to assess the effects of different treatments on rice growth in aerobic ecosystem. Rice was cultivated with; soil covered by rice straw mulching (SC), plastic film (PC) and no soil cover (NC) with lowland rice as control. Significantly higher values were obtained for tiller number, panicle number, LAI, above ground biomass, grain weight density and grain yield recorded in SC and response for physiological traits i.e. photosynthesis rate, stomatal conductance and transpiration rate (A, gs, E) was found higher in control. The symptoms of water stress were observed in NC which impaired rice growth and reduced grain yield. Rice responds differently in morphological, physiological and yield component depending on rice varieties and treatments. Results indicated that MRQ74 has superior morphological and physiological characteristics in adaptations to aerobic condition. (C) 2014 Friends Science Publishers

引用

页码：738 / 744

页数：7

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