Zhao Hongwei Li Qiuzhu Wei Yongxia.EFFECT OF DROUGHT AT DIFFERENT GROWTH STAGESON MAIN PHYSIOLOGICAL PARAMETERS AND YIELD IN SOYBEAN[J].Soybean Science,2006,25(03):329-332.[doi:10.11861/j.issn.1000-9841.2006.03.0329]
不同生育时期干旱对大豆主要生理参数及产量的影响*
- Title:
- EFFECT OF DROUGHT AT DIFFERENT GROWTH STAGESON MAIN PHYSIOLOGICAL PARAMETERS AND YIELD IN SOYBEAN
- 文献标志码:
- A
- 摘要:
- 研究了不同生育时期干旱对大豆光合速率 、硝酸还原酶活性、磷酸蔗糖合成酶和蔗糖合成酶活性等生理指标的影响以及对产量和产量构成因子的影响 。结果表明, 不同生育时期进行干旱处理均使光合速率硝酸还原酶活性、蔗糖合成酶活性和磷酸蔗糖合成酶活性降低 ,光合速率以分枝期到鼓粒期干旱处理降低幅度较大, 硝酸还原酶活性以开花期干旱处理降低幅度最大 ,其次是分枝期和鼓粒期;蔗糖合成酶活性和磷酸蔗糖合成酶活性以开花期干旱处理降低幅度最大 ,其次是鼓粒期和分枝期;不同生育时期干旱处理均导致大豆产量构成因子和产量下降 。每株荚数和每荚粒数以结荚期干旱处理降低幅度最大 ,其次是鼓粒期干旱处理、开花期干旱处理 ;百粒重以鼓粒期干旱处理降低幅度最大 ,其次是结荚期和开花期干旱处理 。单株产量以结荚期干旱处理降低幅度最大,其次是鼓粒期 、开花期干旱处理 。开花期、结荚期和鼓粒期干旱对产量影响最大, 在大豆生产中要特别注意这几个生育时期的水分管理 。
- Abstract:
- Effect of drought at different grow th stages on physiological parameters, such as Pn, NRA , SSand SPS activity , yield and yield components were studied in this article. Results showed that Pn, NRA ,SS and SPS activity were all decreased by drought treatments at different growth stages. Pn was reducedmostly by drought treatment at branch to grain-filling. NRA was decreased mostly by drought treatment atflorescence , next were branch and grain-filling. SS and SPS activity were decreased mostly by drought atflorescence ,next were grain-filling and branch. Yield and yield components were reduced by drought treat-ments at different grow th stages. Legumes per plant and number of seeds per pod were decreased mostlyby drought treatments at pod-setting next ,were grain-filling and florescence. Weight of 100-grain was de-creased mostly by drought treatments at grain-filling next pod-setting and florescence. Yield of single plantwas decreased mostly by drought treatments at pod-setting , next were grain-filling and florescence. Effectof drought treatments at florescence , pod-setting and grain-filling on yield was significant and we shouldpay attention to moisture-managing at this growth stages in producing of soybean.
参考文献/References:
1 关义新, 戴俊英, 陈军, 等. 土壤干旱下玉米叶片游离脯氨酸的累积及其与抗旱性的关系[ J] . 玉米科学, 1996,(1):42- 45.
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备注/Memo
基金项目:国家“863”计划项目(2002AA2Z4251 - 01)资助 作者简介:赵宏伟(1967 -), 女, 副教授, 主要从事作物生理和高产栽培技术教学与研究工作。