| Abstract | 第1-13页 |
| Introduction and literature Review | 第13-23页 |
| RICE PRODUCTION AND INPUT MANGEMENT | 第13页 |
| RICE TAXONOMY | 第13页 |
| EFFECTS OF POTASSIUM AND WATER DEFICIT ON RICE | 第13-23页 |
| 1． Effect of K． on morphology forming of rice root and shoot or organic construct | 第13-14页 |
| 2． Root oxidation and potassium | 第14页 |
| 3． Physioligical Effects of K | 第14-15页 |
| 4． Potassium and nutrient uptake in rice | 第15-17页 |
| 5． Soil potassium deficit and its effects on rice growth | 第17页 |
| 6． Nutrient management in rice production | 第17-18页 |
| 7． The efTects of K． application on yield and yield components | 第18-19页 |
| 8． Water management and nutrient uptake in rice | 第19-20页 |
| 9． Some morpho-physiological implications of water deficit in rice | 第20-22页 |
| 10． Effect of water deficit on upland rice | 第22-23页 |
| GENOTYPEIC DIFFERENCE AND THE RESOURCE EFFICIENCY IN RICE | 第23-26页 |
| Experiment | 第26-56页 |
| 1． Materials and Methods | 第26-31页 |
| 1．1 Material | 第26页 |
| 1．2 Experiment design | 第26-27页 |
| 1．3 Sampling and data collection | 第27-30页 |
| 1．3．1 Observation of tillering dynamics | 第27页 |
| 1．3．2 determination of chlorophyll content in leaf | 第27-28页 |
| 1．3．3 Determination of plant height, length and diameter of basic internode and the components of yield | 第28页 |
| 1．3．4 Determination of N, P and K concentration in plant: | 第28-29页 |
| 1．3．5 Determination of N, P, K． and organic matter content in soil | 第29-30页 |
| 1．4 Data processing | 第30-31页 |
| 2． Results | 第31-53页 |
| 2．1 The grain yield and yield components of different genotype rice under different K level and irrigation mode | 第31-37页 |
| 2．1．1 The grain yield of various genotype rice under different K level and irrigation mode | 第31-32页 |
| 2．1．2 The yield components of different genotype rice under different K level and irrigation mode | 第32-36页 |
| 2．1．2．1 Effective panicles per m~2 | 第32-33页 |
| 2．1．2．2 Grains per panicle | 第33-34页 |
| 2．1．2．3 Ripened grain rate | 第34-35页 |
| 2．1．2．4 1000 grain weight | 第35-36页 |
| 2．1．3 Harvest index of different rice genotype under different K． level and irrigation mode | 第36-37页 |
| 2．2 The morphological characteristics of plant stem of different rice genotypes under different K level and irrigation mode | 第37-41页 |
| 2．2．1 The plant height and distance of panicle neck node to 1st leaf collar of different rice genotype under different K． and Irrigation mode | 第37-38页 |
| 2．2．2 The growth of basic internode of different rice genotype under different K level and Irrigation mode | 第38-40页 |
| 2．2．3 The basic stem diameter of different rice genotype under different K and Irrigation mode | 第40-41页 |
| 2．3 Tiller growth and development of different rice genotype under different K level and irrigation mode | 第41-44页 |
| 2．3．1 The tiller initiation | 第41页 |
| 2．3．2 The most number of tiller per plant of different rice genotype under different K level and irrigation mode | 第41-43页 |
| 2．3．3 The ratio of the effective panicle number to tiller number of different rice genotype under different K level and irrigation mode | 第43-44页 |
| 2．4 The effective panicle number per plant of different genotypes of rice under different K level and irrigation mode | 第44-45页 |
| 2．5 The chlorophyll content of different rice genotype under different k level and irrigation mode | 第45-47页 |
| 2．6 The effect of different K level and irrigation mode on N, K nutrient absorption of different rice genotype | 第47-53页 |
| 2．6．1 Potassium content | 第47-49页 |
| 2．6．2 Nitrogen concentration | 第49-53页 |
| 3． Discussion | 第53-56页 |
| 3．1 Response of rice to potassium and their genotypic differences | 第53-54页 |
| 3．2 The effect of water on rice and their genotypic difference | 第54-55页 |
| 3．3 The interaction between potassium and irrigation mode | 第55-56页 |
| References | 第56-66页 |
| 钾营养和灌溉模式对水稻生长发育和产量形成的影响 及其基因型差异的研究(摘要) | 第66-68页 |
| RESUME | 第68页 |
