水稻品种对稻瘿蚊中国Ⅳ型的抗性及其与总酚含量关系

摘要

To clarify resistance and the mechanism of rice varieties to rice gall midge (CM) biotype China IV, antibiosis of 11 rice varieties to CM biotype China IV were tested, and the correlation between total phenol content and the resistance of rice varieties to CM was studied. The results indicated that ARC5984, 570011, ARCS833, RP1976-18-64-2 and RNR3070 were highly resistant to GM biotype China IV, and there were no preference in opposition and incursion of CM biotype China IV to resistant and susceptible rice varieties. A majority of larvae died, and the survival ones developed very slowly, most of them stayed in first instar larvae in high resistance rice varieties. The total phenol contents in high resistance variety 570011 (2.63 mg/g) were the highest, and the total phenol contents in susceptible variety W1263 (1.23 mg/g) were the lowest. The total phenol contents in resistant varieties 570011, ARC5984, ARC5833, RP1976-18-6-4-2, RNR3070 and Duokangl were significantly higher than the susceptible varieties TNI, W1263. There were obvious positive correlations between the total phenol contents in rice varieties leaves and the resistance of rice varieties to CM biotype China IV.%为明确水稻品种对稻瘿蚊中国Ⅳ型的抗性及其机制,研究了11个水稻品种对稻瘿蚊中国Ⅳ型的抗生性,并探讨总酚含量与水稻品种抗稻瘿蚊中国Ⅳ型的关系.结果表明,ARC5984、570011、ARC5833、RP1976 -18-6 -4-2、RNR3070高抗稻瘿蚊中国Ⅳ型；稻瘿蚊中国Ⅳ型对抗感水稻品种无产卵和入侵偏嗜性；在高抗水稻品种稻株内大部分幼虫死亡,存活幼虫发育缓慢,多数停留在一龄虫态阶段.高抗品种570011的总酚含量最高,达2.63 mg/g,感虫品种W1263的总酚含量最低,仅有1.23 mg/g;抗虫品种570011、ARC5984、ARC5833、RP1976-18-6-4-2、RNR3070和Duokangl的总酚含量极显著高于感虫品种TN1和W1263.水稻品种对稻瘿蚊中国Ⅳ型的抗性与稻叶总酚含量呈显著正相关.