CAJ | 학술논문

[目的]研究不同播期对水稻秧苗素质的影响,为确定晚季的最佳播种期提供理论依据。[方法]通过对3个水稻品种6个不同播期情况下生长的秧苗的地上部和地下部性状调查,确定双季晚稻最佳播种时期。[结果]第1叶鞘高与第2叶长呈极显著的正相关,且他们的二次拟合方程具有很好的拟合性。3个水稻品种的不同播期对地上部和地下部的影响都有显著差异。[结论]初步确定广东地区双季晚稻品种天优428的最佳播种期在6月25-7月2日,天优998和玉香油占晚季的最佳的播种期在7月2 ~9日。
[목적]연구불동파기대수도앙묘소질적영향,위학정만계적최가파충기제공이론의거。[방법]통과대3개수도품충6개불동파기정황하생장적앙묘적지상부화지하부성상조사,학정쌍계만도최가파충시기。[결과]제1협초고여제2협장정겁현저적정상관,차타문적이차의합방정구유흔호적의합성。3개수도품충적불동파기대지상부화지하부적영향도유현저차이。[결론]초보학정엄동지구쌍계만도품충천우428적최가파충기재6월25-7월2일,천우998화옥향유점만계적최가적파충기재7월2 ~9일。
[Objective] The aim was to study seedling quality of rice sowed at different dates so as to provide theoretical basis for determining the best seeding time.[Method] By investigating the characters of shoot and root of different varieties sowed at different dates,the best seeding time of double-cropping late rice was determined.[Result] The first leaf sheath height and the second leaf length shared significantly positive correlation,which fit the quadratic equation well.The effects of different sowing dates on shoot and root of three rice varieties appeared significant difference.[Conclusion] The best seeding time of Tianyou428 was in June 25-July 2 and that of Tianyou998 and Yuxiangyouzhan was in July 2-9.