LI Da lin,LI Xiu ping,MA Wen dong,et al.Study on Rice Yield Potential in Heilongjiang Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(08):26-30.[doi:10.11942/j.issn1002-2767.2015.08.0026]
黑龙江省水稻单产潜力研究
- Title:
- Study on Rice Yield Potential in Heilongjiang Province
- 文章编号:
- 1002-2767（2015）08-0026-05
- Keywords:
- rice; yield potential; yield
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为准确确定水稻育种的产量目标，并为育成具有该产量潜力的品种寻找切入点。根据不同时期水稻生长量的实测值和可变参数来进行产量潜力的推算。解决黑龙江省水稻育成品种产量难以提高问题。结果表明：高产材料比生产应用品种如垦稻12增产 29.8%~38.1%。增产潜力可以达50%左右。目前应用的品种生育期比适宜品种生育期早15 d左右。穗重高产型主要指标：单产15 000 kg·hm-2的品种，在密度30 cm×20 cm×（3～5）株·穴-1条件下，每穴穗数22～28个，平均单穗重3.3～4.1 g，生育期131~146 d。超高产育种的切入点是以延长生育期、提高单穗重为主，在不倒伏的情况下，可以选择叶片数多、株高较高及生长快的类型。
- Abstract:
- In order to accurately determine the yield target of rice yield breeding,and find the breakthrough point of rice yield potential varieties breeding.The results showed that the yield of high yield varieties increased about 29.8%~38.1% than that of production varieties Kendao 12.The yield potential increased about 50%.Conclusion,the growth period of the current applied varieties was 15 days earlier than that of suitable varieties.The main indicators of heavy panicle and high yield varieties were yield was 15 000 kg·hm2,the density was 30 cm×20 cm×(3～5)plants per hole,the spike number per hole was 22~28,the average panicle weight was 3.3~4.1 g,the growth period was 131~146 days.The breakthrough points for super high yield breeding were to extend the growth period and increase weight of single panicle,under no lodging condition,more leaves,higher plant height and fast growth type could be chosen.
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备注/Memo
农业部寒地早粳超级稻新品种选育研究资助项目；农业部水稻产业技术体系资助项目（CARS0104）；黑龙江省科技攻关重大资助项目（GA13B101）；黑龙江省重大科技招标资助项目（GA14B102）李大林（1971-），男，黑龙江省佳木斯市人，硕士，副研究员，从事水稻育种研究。E-mail:eldalin@163.com。