The relationship between rice stem and lodging resistance was studied by topdressing different N and K fertilizer in different periods for Indica hybrid rice Liangyou 6326. The results showed that the smallest lodging index was fertilizered in top 5th leaves, the biggest one was fertilizered in flag leaves in N fertilizer trials; The smallest lodging index was fertilizered in top 2nd leaves, the biggest one was fertilizered in top 3rd leaves in K fertilizer trials. The significance of robust degrees of basal internodes to lodging resistance is as follows: 2nd basal internodes > 1st basal internodes > 3rd basd internodes. The lodging index of stem is effected by follow factors: basal internodes dry weight > basal internodes length > basal internodes wall thickness > basal internodes inner diameter.
WANG Xiang-Ping-1, FENG He-Ping-2, HUANG Yi-De-3*
. Effects of Topdressing N and K Fertilizer in Different Periods on Lodging Resistance of Mid-season Indica Hybrid Rice[J]. China Rice, 2015
, 21(2)
: 13
-16,19
.
DOI: 10.3969/j.issn.1006-8082.2015.02.004
[1] 北条良夫，星川清亲. 作物的形态与机能[M]. 郑丕尧，周殿玺，刘兴海，等译. 北京：农业出版社，1983：2-8.
[2] Berzonsky WA, Hawk J A, Pizzolato T D, et al. Anatomical characteristics of three inbred lines and two Maize synthetics recurrently selected for high and low stalk crushing strenthen[J]. Cro Sci ,1986, 26: 482-488.
[3] 周利华. 水稻茎秆性状与抗倒伏关系的研究综述[J]. 中国稻米，2006（3）:10-11.
[4] 王勇，李朝恒. 小麦抗倒性研究现状及存在的问题[J]. 广西农业科学，2007，38（2）141-144.
[5] 唐拴虎，徐培智，张发宝，等. 一次性全层施用控释肥对水稻根系形态发育及抗倒伏能力的影响[J]. 植物营养与肥料学报，2006，12（1）：63-69.
[6] 许文燕，龙继锐，马国辉，等. 液体硅钾肥对杂交晚稻抗倒伏性和物质生产的影响初探[J]. 中国农学通报，2011，27（18）：24-28.
[7] 杨惠杰，杨仁崔，李义珍，等. 水稻茎秆性状与抗倒伏的关系[J]. 福建农业学报，2000，15（2）：1-7.
[8] 刘立军，王康君，葛立立，等. 旱种水稻基部节间性状与倒伏的关系及其生理机制[J]. 作物学报，2012，38（5）：848-856.
[9] 李旭，毛艇，付立东，等. 滨海稻区水稻不同收获期茎秆抗倒伏能力及其影响因素研究[J]. 中国农学通报，2011，27（27）：50-54.
[10] 濑古秀生.水稻の倒伏に关する研究[J]. 九州农试汇报1962，7：419-495.
