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首页> 外文期刊>Research in Agriculture, Livestock and Fisheries >Soil amendments with farm yard manure and poultry manure confer tolerance to salt stress in rice (Oryza sativa L.)
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Soil amendments with farm yard manure and poultry manure confer tolerance to salt stress in rice (Oryza sativa L.)

机译：农田肥料和家禽粪便对土壤的改良赋予水稻抗盐胁迫的能力（Oryza sativa L.）

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Salinity causes unfavorable environment that restricts normal crop production. Organic amendments could contribute to the improvement of crop production in coastal areas. Two rice varieties viz. BRRI dhan29 (salt-sensitive) and Binadhan-8 (salt-tolerant) were grown in replicated pots to investigate the mitigation potential of salt stress in rice by organic amendments. Two doses of farm yard manure (FYM: 5 and 10 t ha -1 ) and poultry manure (PM: 4 and 8 t ha -1 ) were mixed with soils before transplanting. Rice plants were exposed to different concentrations of NaCl (25 and 50 mM) at active tillering stage. Salt stress caused a significant reduction in growth and yield of both rice varieties. Salt stress also decreased reproductive growth, chlorophyll contents, K + /Na + ratio, nutrient contents and nutrient uptake in both rice varieties. Salinity caused a significant increase in intracellular proline content in BRRI dhan29 but a decrease in Binadhan-8. Organic amendments with FYM and PM resulted in an increase in growth and yield components, chlorophyll content, K + /Na + ratio and nitrogen (N) uptake. No plants of BRRI dhan29 survived at 50 mM NaCl stress even after addition of FYM and PM. On the other hand, Binadhan-8 conferred tolerance to 50 mM NaCl stress when soils were amended with organic sources, suggesting that cultivation of Binadhan-8 might be profitable in saline affected areas with organic amendments. The present study suggests that organic amendments with FYM and PM confer tolerance to salinity in rice by increasing chlorophyll content, K + /Na + ratio and N uptake. Res. Agric., Livest. Fish.3(3): 379-386, December 2016.
机译：盐分会导致不利的环境，限制正常的农作物产量。有机修正案可能有助于改善沿海地区的农作物产量。两个水稻品种，即。将BRRI dhan29（对盐敏感）和Binadhan-8（对盐敏感）种植在复制的盆中，以研究通过有机改良剂缓解水稻盐胁迫的潜力。在移植前，将两剂农田肥料（FYM：5和10 t ha -1）和家禽肥料（PM：4和8 t ha -1）与土壤混合。在活跃分active期，水稻植株暴露于不同浓度的NaCl（25和50 mM）。盐胁迫导致两个水稻品种的生长和产量显着下降。盐胁迫还降低了两个水稻品种的生殖生长，叶绿素含量，K + / Na +比，养分含量和养分吸收。盐度导致BRRI dhan29细胞内脯氨酸含量显着增加，而Binadhan-8降低。用FYM和PM进行的有机改良剂导致生长和产量构成，叶绿素含量，K + / Na +比和氮（N）吸收增加。即使加入FYM和PM，BRRI dhan29的植物也无法在50 mM NaCl胁迫下存活。另一方面，当用有机源改良土壤时，Binadhan-8可以耐受50 mM NaCl胁迫，这表明在使用有机改良剂的盐碱化地区种植Binadhan-8可能是有利的。本研究表明，FYM和PM的有机修饰物通过增加叶绿素含量，K + / Na +比和N吸收来赋予水稻耐盐性。 Res。 Agric。，Livest。 Fish.3（3）：379-386，2016年12月。

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