摘要
通过对不同播种期的秧苗素质的研究,确定最佳的播种时期。结果表明:第1叶鞘高与2叶长呈极显著的正相关(r=0．8201^(**));秧龄期和株高呈极显著正相关(R=0．9367^(**))。结合2006年4月份气温特点,并通过对第1叶鞘高、2叶长、根数、株高等性状分析,初步确认三江地区水稻最佳播种期是4月10～15日。
The relationship of different sowing time to quality of the rice seedling was researched to measure the optimal sowing date, the results showed that： The height of the 1st leaf sheath presented extremely prominent positive correlation with the length of the 2th leaves（r = 0. 8201^＊＊ ） ; Seedling age presented extremely prominent positive correlation with the plant height （R = 0. 9367^＊＊ ）. According to the temperature characteristic in April of 2006, the traits analysis of the 1st leaf sheath height, 2 leaf length, root numbers and plant height, April 10-15 was confirmed as the best sowing time of rice.
出处
《黑龙江农业科学》
2007年第3期32-34,共3页
Heilongjiang Agricultural Sciences
关键词
播种期
秧苗素质
叶龄
sowing time
quality of the rice seedling
leaves age
