| 肖 瑶，张 杰，杨国涛，陈永军，彭友林，王学春，胡运高.西科恢768 系列品种伤流特性及其与产量的关系研究[J].广东农业科学,2018,45(5):1-6 |
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西科恢768 系列品种伤流特性及其与产量的关系研究 |
| Study on the relationship between characteristics of bleeding sap and yield in restorerline Xikehui 768 |
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| DOI：10.16768/j.issn.1004-874X.2018.05.001 |
| 中文关键词: 伤流强度 伤流组分 西科恢768 宜香优2115 产量性状 |
| 英文关键词: bleeding components of bleeding sap Xikehui 768 Yixiang You 2115 yield traits |
| 基金项目:国家重大研发计划项目（2017YFD0100201）；四川省省属高校科研创新团队建设项目（14TD0011）；
四川省“十三五”水稻育种攻关项目（2016NYZ0028）；四川省科技厅国际合作项目（18GJHZ0204） |
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| 中文摘要: |
| 为研究西科恢768 系列品种伤流强度及组分与产量之间的内在联系，选择内5 优768、B 优
268 为试验材料，以宜香优2115 为对照种进行大田试验。结果表明：西科恢768 所配置2 个品种（内5 优
768 和B 优268）的产量均显著高于对照种宜香优2115，内5 优768 比对照种高34.44%，B 优268 比对照
种高35.71%，千粒重、有效穗数及结实率对西科恢768 系列品种产量影响较大；对不同生育时期的伤流分
析发现，参试品种的伤流强度均在分蘖盛期达到最高，表现为宜香优2115（632.89 mg/mL）＞内5 优768
（506.67 mg/mL）＞ B 优268（454.24 mg/mL），而在成熟期表现最低，B 优268（29.45 mg/mL）＞内5 优
768（27.01 mg/mL）＞宜香优2115（24.41 mg/mL）；对伤流强度与产量的相关性分析发现，在分蘖盛期，产
量与伤流强度呈极显著负相关，在生殖生长阶段，产量与伤流强度呈显著正相关。表明参试品种的伤流强
度及组分在同一时期的表现各不相同，且同一品种在不同时期的表现也有较大差异。在营养生长阶段，伤
流强度及组分不利于水稻产量的提高，而在生殖生长阶段，伤流强度及组分有利于水稻的增产。 |
| 英文摘要: |
| To investigate the relationships between intensity，composition of bleading sap and yields of the
Xikehui 768，two Xikehui 768 cultivars were used as experiment materials，and Yixiang You 2115 was used as
control. The results showed that yields of both Nei 5 You 768 and B You 268 significantly higher than Yixiang You
2115. Moreover，the 1 000-grain weight，effective panicle number and seeds setting rate of the Xikehui 768 had
a greater effect on their yield. Besides，the bleeding intensity in tested cultivars reached peak at the active tillering
stage，in which Yixiang You 2115（632.89 mg/mL）＞ Nei 5 You 768（506.67 mg/mL）＞ B You 268（454.24
mg/mL），while it reached the lowest at maturity，in which B You 268（29.45 mg/mL）＞ Nei 5 You 768（27.01
mg/mL）＞ Yixiang You 2115（24.41 mg/mL）. The correlation analysis on yield and bleeding intensity showed
that the yield significantly negative correlation with the bleeding intensity at the active tillering stage；and there was
a significant positive correlation during the reproductive growth stage. In conclusion，both bleeding intensity and the components of bleeding sap in the Nei 5 You 768 and B You 268 were different at the same stage；the bleeding
intensity and bleeding saps compositions of the same cultivar had discrepancy in different periods. At the vegetative
growth stage，the bleeding intensity and components of bleeding sap are not beneficial to rice yield inprovement，
while in the stage of reproductive growth phase，they can improve rice yield. |
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