水稻耐旱资源的产量结构分析

本研究使用携带空心莲子草DNA片段的变异系旱H8和H10,巴西陆稻和国审旱稻沪旱3号、水稻原受体6527为实验材料,采用随机区组试验设计,分析了在旱作条件下4个耐旱品种（品系）的农艺性状特性。结果表明,1变异系旱H8比巴西陆稻显著增产834.55 kg/hm2,比国审旱稻沪旱3号增产466.09 kg/hm2,但没有显著差异。旱H10比巴西陆稻增产228.41 kg/hm2,但差异不显著。2耐旱品种的产量主要取决于多实粒数和高结实率。研究结果对于水稻耐旱品种的培育具有一定的参考价值。...

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Bibliographic Details
Published in西南农业学报 Vol. 28; no. 1; pp. 6 - 9
Main Author 魏霞 杨正林 何光华 李云峰 赵芳明
Format Journal Article
LanguageChinese
Published 西南大学农学与生物科技学院,重庆北碚,400715 2015
Subjects
产量
农艺性状
水稻
耐旱资源
产量
农艺性状
Drought-tolerant resources
水稻
Yield
耐旱资源
Agronomic traits
Rice
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ISSN1001-4829
DOI10.16213/j.cnki.scjas.2015.01.002

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Summary:本研究使用携带空心莲子草DNA片段的变异系旱H8和H10,巴西陆稻和国审旱稻沪旱3号、水稻原受体6527为实验材料,采用随机区组试验设计,分析了在旱作条件下4个耐旱品种（品系）的农艺性状特性。结果表明,1变异系旱H8比巴西陆稻显著增产834.55 kg/hm2,比国审旱稻沪旱3号增产466.09 kg/hm2,但没有显著差异。旱H10比巴西陆稻增产228.41 kg/hm2,但差异不显著。2耐旱品种的产量主要取决于多实粒数和高结实率。研究结果对于水稻耐旱品种的培育具有一定的参考价值。
Bibliography:Rice; Drought-tolerant resources; Agronomic traits; Yield
Yield and important agronomic traits of 4 upland rice varieties and one common rice control were analyzed in drought menance in the study,designed by randomized block experiment using the introgression lines H8 and H10 carrying DNA segments of Alternanthera philoxeroides,and IAPAR9 and the national upland rice Huhan 3 and recepient of the introgression lines 6527 as experimental materials. The results showed as follows：（ i） the yield of introgression lines H8 significantly increased by 834. 55 kg / hm2 than that of IAPAR9,and 466.09 kg / hm2 than that of Huhan 3 in our country,but not significant. The yield of H10 significantly increased by 228. 41 kg / hm2 than that of IAPAR9,but not significant.（ ii） The yield of the upland rice mainly depended on large amount of grains and high seed setting rate. These results would be useful for breeding of rice varieties with drought-tolerant characters.
51-1213/S
WEI Xia, YANG Zheng-lin, HE Guang-hua, LI Yun-feng, Z
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2015.01.002