Journal article : China Rice 2017 Vol.23 No.4 pp.165-167 ref.10
Abstract : A field experiment was carried out to study the effects of different sowing dates on grain yield and quality of purple rice Liangtianzi 1 in Changsha region. The results showed that the whole growth period of Liangtianzi 1 was shortened with the delay of sowing date. The effective panicles, grains per panicle, seed setting rate and yield Were significantly increased with the delay of sowing date, and the yield of May 31st treatment was 4 693 kg/hm2. Rice quality of purple rice was affected by sowing date. The treatment with the best milling quality was May 11st treatment, and the next was May 21st treatment. The highest content of amylose, crude protein and Se in grain was gained with May 21st treatment, while the highest content of Zn in grain was gained with May 31st treatment. Comprehensively, the optimal sowing date of Liangtianzi 1 for higher yield and fine quality in Changsha region was May 21st to May 31st.
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