SALINITY TOLERANCE IN RICE VARIETIES AT DIFFERENT GROWTH-STAGES
SALINITY TOLERANCE IN RICE VARIETIES AT DIFFERENT GROWTH-STAGES
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DOI：
10.1071/ea9880343
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发表时间：
1988-01-01
影响因子：
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通讯作者：
MCCAFFERY, DW
中科院分区：
文献类型：
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作者：
HEENAN, DP;LEWIN, LG;MCCAFFERY, DW
在控温温室中研究了几个澳大利亚和海外水稻品种在发芽、早期营养生长和生殖发育时的耐盐性，以确定在任何特定阶段筛选的可靠性。在所有3个阶段，品种的耐受程度不同，但阶段之间的耐受顺序差异很大。在所用的品种中，澳大利亚长粒品种Pelde对发芽是耐受的，但在早期营养生长和生殖发育期间最不耐受。日本品种Somewake在萌发和营养生长期间不耐受，但在生殖发育期间最耐受。线性回归分析表明，大多数品种的地上部干重与生长初期地上部钠浓度呈负相关（r ~ 2 = 0.97-0.73）。对于Pelde，干物质生产是最密切相关的钾浓度在地上部（r2 = 0.92）。
The salt tolerance of several Australian and overseas rice varieties was studied at germination, early vegetative growth, and reproductive development in a temperature controlled glasshouse to determine the reliability of screening at any particular stage. At all 3 stages, varieties differed in their degree of tolerance, but the order of tolerance varied considerably between stages. Of the varieties used, the Australian long grain variety Pelde was tolerant for germination but most intolerant during early vegetative growth and reproductive development. The Japanese variety Somewake was intolerant during germination and vegetative growth but most tolerant during reproductive development. Linear regressions showed inverse relationships (r2 = 0.97-0.73) between sodium concentration in the shoots during early growth and shoot dry weight for most varieties. For Pelde, dry matter production was most closely related to potassium concentration in the shoots (r2 = 0.92).