| 1. | The unsuccessful crosses involved two species belonging to different series .
未成功的杂交组合都属非同族的两个种。 |
| 2. | Many thousands of hybrid combinations must be tested for each new hybrid variety released to the public .
在每个新的杂交种向群众推广以前，要对成千的杂交组合做试验。 |
| 3. | Technical rules for cross - combination testing of lean - type pigs
瘦肉型猪杂交组合试验技术规程 |
| 4. | Comparison between different types of single - cropping late rice combinations
桃江县一季晚稻杂交组合品种比较试验 |
| 5. | Study on breeding hybridized combination with high yield by teraploid mulberry parent
以四倍体桑为亲本选育高产杂交组合的研究 |
| 6. | Heterosis of several hybrid wheat combinations from five stripe rust - resistant wheat parents
几个抗条锈病小麦品种杂交组合的杂种优势研究 |
| 7. | The resistance evaluation to bacterial wilt of tobacco germ resources and hybridized combinations of flue - cured tobacco
烟草种质资源及烤烟杂交组合对青枯病的抗性评价 |
| 8. | Experiment for comparing the performance of erhualian pig double cross combinations and that of duroc landrace large yorkshire three - way cross combination
二花脸猪四元杂交组合与杜长大三元杂交组合比较试验报告 |
| 9. | The absorbing amount of vigorous spikelets was 10 times higher than that of the weak spikelets , especially in hybrid rice combinations
杂交稻及其恢复系在物质分配方面表现出强势粒对弱势粒的粒间顶端优势，杂交组合比相应恢复系的粒间顶端优势表现更为明显。 |
| 10. | To study the interactions of combining ability with environment for the stem characters in wheat , a set of diallel cross involving 7 random parents was made in three years
摘要随机选用7个亲本，连续3年组配成21个双列杂交组合，研究了小麦茎秆特性的配合力与环境互作。 |
