Cell Membrane Stability and Leaf Water Relations as Affected by Nitrogen Application in Maize (Zea mays L.)

Japanese Journal of Crop Science

Hirohumi SANEOKA¹  Hideaki MATSUURA¹  Shoitsu OGATA¹  Gnanasiri S. PREMACHANDRA¹ 

关键词: Cell membrane stability;    細胞膜安定性;    Leaf water potential;    浸透調整;    Nitrogen nutrition;    窒素栄養;    Osmotic adjustment;    トウモロコシ (Zea mays. L.);    Zea mays;    葉の水ポテンシャル;   

DOI  :  10.1626/jcs.59.354

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

A field experiment was conducted to investigate the effect of N application on cell membrane stability measured by the polyethylene glycol test and leaf water relations in maize. With increasing N levels leaf water potential was decreased while total plant weight and cell membrane stability were increased. Osmotic potential decreased with increasing N levels in order to maintain turgor at lower water potential conditions. Sugar and K were identified as the major osmotic contributors in maize. Osmotic adjustment was evident while concentrations of sugar, K and amino acids in cell sap increased with increasing N application.

【 授权许可】

Unknown