| 1. | Producing hybrid corn is a lengthy process which must be done by hand .
生产杂交玉米是一个漫长的过程，要靠手工劳作。 |
| 2. | Key to guarantee hybrid maize production quality
确保杂交玉米制种质量的关键措施 |
| 3. | Measures to improve hybrid maize production quality
提高杂交玉米制种质量的措施 |
| 4. | Field testing method of hybrid maize production
杂交玉米制种田间检验方法 |
| 5. | High - yield technique of hybrid maize xiangyu 10 seed production
杂交玉米湘玉10号制种高产技术 |
| 6. | Technical measures to improve yield of hybrid maise production
提高杂交玉米制种产量的技术措施 |
| 7. | Flowerscence forcasting and regulation of hybrid maize production
杂交玉米制种花期的预测与调节 |
| 8. | Studies on the optimum cultivation technique of hybrid maize
杂交玉米高产高效优化栽培技术的研究 |
| 9. | Folwering period prediction and adjustment in hybrid maize seed production
浅谈杂交玉米制种花期预测与调节 |
| 10. | Florescence calculation in hybrid maize production and adjust measures
杂交玉米制种花期预测方法与调整措施 |
