Regulations in 2-acetyl-1-pyrroline contents in fragrant rice are associated with water-nitrogen dynamics and plant nutrient contents
文献类型： 外文期刊
作者： Mo, Zhaowen 1 ; Tang, Yongjian 1 ; Ashraf, Umair 1 ; Pan, Shenggang 1 ; Duan, Meiyang 1 ; Tian, Hua 1 ; Wang, Shuli 1 ; T 1 ;
作者机构： 1.South China Agr Univ, Coll Agr, Guangzhou 510642, Guangdong, Peoples R China
2.Minist Agr, Sci Observing & Expt Stn Crop Cultivat South Chin, Guangzhou 510642, Guangdong, Peoples R China
3.Univ Educ Lahore, Dept Bot, Faisalabad Campus, Faisalabad 380009, Punjab, Pakistan
关键词： 2-acetyl-1-pyrroline; Fragrant rice; Nutrient content; Water
期刊名称：JOURNAL OF CEREAL SCIENCE （ 影响因子：3.616； 五年影响因子：3.891 ）
ISSN： 0733-5210
年卷期： 2019 年 88 卷
页码：
收录情况： SCI
摘要： Water (W) and nitrogen (N) have pronounced effects on 2-acetyl-1-pyrroline (2AP) contents and nutrient acquisition in fragrant rice. Field experiments were conducted during the early (March-July) and the late (July-November) seasons of 2013. Two water regimes i.e., W0 (well-watered, soil water potential was 0 kPa) and W1 (soil water potential was -25 +/- 5 kPa) and two nitrogen levels i.e., NO (0 kg N/ha) and N1 (60 kg N/ha (applied in addition to basal dose) were applied to two fragrant rice cultivars i.e., 'Nongxiang 18' and Basmati 385' at booting stage. All treatments were applied with 90-90-195 kg N-P-K ha(-1) as basal fertilizer and at five days after transplanting, more N was added at 30 kg/ha. Results showed that the interactive effects of W and N influenced 2AP content in grains of both aromatic rice cultivars in both seasons. Compared to W1N0, the 2AP contents of 'Nongxiang 18' and 'Basmati 385'were increased by 37.74% and 55.78% as well as 68.35% and 47.10% at W1N1 for early and late season, respectively. Moreover, W1N1 increased total nitrogen contents in leaves and total potassium contents in leaves and stem sheath of both rice cultivars, whereas, grain 2AP contents were significantly related to the total N and N/P ratio in leaves.
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