| 谢桂先,刘强,荣湘民,宋海星,彭建伟,朱红梅.节水灌溉条件下饲料稻不同施氮水平碳代谢关键酶活性及产量表现[J].干旱地区农业研究,2008,(5):36~40 |
| 节水灌溉条件下饲料稻不同施氮水平碳代谢关键酶活性及产量表现 |
| Effects of different nitrogen fertilizer ratio on key enzymes activities of carbon metabolism and forage rice yield under water-saving condition |
| |
| DOI：10.7606/j.issn.1000-7601.2008.05.08 |
| 中文关键词: 水稻 蔗糖磷酸合成酶 蔗糖合成酶 腺苷二磷酸焦磷酸 |
| 英文关键词:rice sucrose phosphate synthase(SPS) sucrose synthase(SUS) ADP glucose pyrophosphorylase(ADPase) photosynthesis yield |
| 基金项目:国家十五攻关项目子专题(2001BA507A) |
|
| 摘要点击次数: 391 |
| 全文下载次数: 329 |
| 中文摘要: |
| 节水条件下，采用田间小区试验研究“氮中量施肥法” （N，P2O5，K2O施用量分别为190，90，100 kg·hm-2）、“氮高量施肥法” （N，P2O5，K2O为210，90，100 kg·hm-2）、“氮低量施肥法” （N，P2O5，K2O为170，90，100 kg·hm-2）对饲料稻威优198蔗糖磷酸合成酶（SPS）、蔗糖合成酶（SUS）、腺苷二磷酸葡萄糖焦磷酸化酶（ADPase）活性、光合特性以及产量的影响。结果表明，氮中量施肥法处理水稻旗叶和粒籽中的SPS、SUS、ADPase活性较高；旗叶净光合作用速率较快；叶和籽粒中蔗糖含量较高，蔗糖转化成淀粉的能力较强。氮中量施肥法处理能显著增加水稻的有效穗和籽粒产量，有效穗分别比氮高量栽培法和氮低量施肥法提高了7.70%和10.32%，籽粒产量分别比氮高量栽培法和氮低量施肥法提高了12.02%和8.47%。 |
| 英文摘要: |
| Field experiment combining with laboratory analysis were conducted to study the effects of three different nitrogen ratio fertilizer methods (medium nitrogen ratio fertilizer method—the ratio of N, P2O5, K2O is 190, 90, 100 kg·hm-2, high nitrogen ratio fertilizer method—N, P2O5, K2O is 210, 90, 100 kg·hm-2 and low nitrogen ratio fertilizer method—N, P2O5, K2O is 170, 90, 100 kg·hm-2) on key enzymes activities of carbon metabolism and forage rice (Weiyou 198) yield under water saving condition in 2003 in Changsha city. The results showed that, the activities of sucrose phosphate synthase(SPS), sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains, the net photosy nthesis rate in flag leaves, the content of sucrose in flag leaves and grains, the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method. In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment, the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%, and grains yield were increased by 12.02% and 8.47%, respectively. The medium nitrogen ratio fertilization method was suitable for high protein forage rice cultivation. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| | |