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首页> 外文期刊>The Indian Journal of Agricultural Sciences >Effect of transplanting date and age of seedlings on growth, yield and quality of hybrids under system of rice (Oryza sativa) intensification and their effect on soil fertility
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Effect of transplanting date and age of seedlings on growth, yield and quality of hybrids under system of rice (Oryza sativa) intensification and their effect on soil fertility

机译：水稻强化栽培条件下移栽期和育苗年限对杂种的生长，产量和品质的影响及其对土壤肥力的影响。

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A field experiment to study the effect of transplanting date and age of seedlings on growth, yield and quality of rice hybrids under SRI and their effect on soil fertility was conducted on sandy-clay loam soil at Varanasi during rainy (kharif) seasons of 2012 and 2013. The experiment on sandy loam soil was laid out in split-split plot design assigning three dates of transplanting (27 June, 7 July and 17 July) in main plot, two rice hybrids (PHB-71 and Pusa RH-10) in sub-plot and three age of seedlings (10, 14 and 18-day old) in sub-sub plot with three replications. Results revealed that higher growth parameters, viz. plant height (104.2 cm), tillers/hill (20.4), leaf area index (5.16) and dry matter accumulation/hill (31.2 g) and yield attributes, viz. effective tillers/m(2) (248.2), panicle length (30.5 cm), grains/panicle (176), weight/panicle (5.08 g) and test weight (23.11 g), grain and straw yield (6.67 and 8.71 tonnes/ha, respectively) and harvest index (43.17) were observed under 27 June transplanting as compared to rest of the two dates of planting. Protein content in grain and kernel length before and after cooking also registered significant improvement in 27 June transplanted crop. The magnitude of increase in grain and straw yield of hybrid under SRI by the early transplanting (27 June) as compared to the late transplanting (17 July) was 19.9 and 15.2 %, respectively on pooled basis. However, soil pH, EC, organic carbon, available NPK, hulling, milling and head rice recovery percentage, kernel breadth (B) before and after cooking, length (L) elongation ratio and L/B ratio remained unaffected due to different dates of transplanting. Among the hybrids, PHB-71 produced markedly higher plant height (104.8 cm), tillers/hill (17.6), leaf-area index (4.91), dry matter accumulation/hill (29.5 g), effective tillers/m(2) (236.4), panicle length (30.1 cm), grains/panicle (188), weight/panicle (4.62 g), test weight (22.67 g), grain yield (7.00 tonnes/ha), straw yield (8.95 tonnes/ha) and harvest index (43.87) over Pusa RH-10. Organic carbon content in soil as well as quality parameters viz. hulling, milling and head rice recovery percentage, protein content and kernel breadth before and after cooking were also recorded higher with PHB-71 than the Pusa RH-10. However, maximum available NPK, kernel length before and after cooking, length elongation and length breadth ratio before cooking were recorded with 'Pusa RH-10'. Younger aged seedlings (10-day old) recorded significantly higher growth and yield parameters, yields and harvest index over older aged seedlings (18-day), whereas maximum available NPK was recorded with older aged seedlings (18-day). The 10-day old seedlings gave 6.4 and 12.9% more grain yield than 14 and 18-day old seedlings, respectively. Interactive effect on grain yield was significant among date of transplanting, age of seedlings and hybrids. Transplanting of PHB-71 hybrid on 27 June having either 10 or 14-day old seedlings resulted in markedly higher grain yield as compared to rest of the treatments
机译：在2012年雨季（kharif）的瓦拉纳西沙质壤土上，进行了田间试验，研究了移栽日期和年龄对水稻杂种生长，产量和品质及其对土壤肥力的影响。 2013年。在沙壤土上进行的实验以分块地块设计进行，在主块地上分配了三个移栽日期（6月27日，7月7日和7月17日），两个水稻杂交种（PHB-71和Pusa RH-10）在该地块进行。子图和三个年龄的幼苗（10、14和18天大）在子图中重复三次。结果显示较高的生长参数，即。株高（104.2 cm），分till /丘陵（20.4），叶面积指数（5.16）和干物质积累/丘陵（31.2 g）和产量属性，即。有效耕作机/米（2）（248.2），穗长（30.5厘米），谷粒/穗（176），重量/穗（5.08克）和试验重量（23.11克），谷物和稻草产量（6.67和8.71吨/与6月27日播种的其余时间相比，在6月27日的移植过程中观察到分别为100公顷（公顷）和收获指数（43.17）。在6月27日的移植作物中，蒸煮前后谷物的蛋白质含量和籽粒长度也显着改善。早期移植（6月27日）与后期移植（7月17日）相比，在SRI下杂交的谷物和稻草产量的增加幅度分别为19.9％和15.2％。但是，土壤pH，EC，有机碳，有效NPK，脱壳，碾米和糙米的回收率，蒸煮前后的谷粒宽度（B），长度（L）伸长率和L / B比率由于日期不同而没有受到影响。移植。在这些杂种中，PHB-71的株高（104.8 cm），分till /丘陵（17.6），叶面积指数（4.91），干物质积累/丘陵（29.5 g），有效分ers / m（2）显着更高（ 236.4），穗长（30.1厘米），谷粒/穗（188），重量/穗（4.62克），试验重量（22.67克），谷物产量（7.00吨/公顷），稻草产量（8.95吨/公顷）和Pusa RH-10的收获指数（43.87）。土壤中的有机碳含量以及质量参数。 PHB-71的皮脱壳，碾米和糙米的回收率，蛋白质含量和籽粒宽度也被记录为高于Pusa RH-10。但是，使用“ Pusa RH-10”记录了最大可用NPK，蒸煮前后的籽粒长度，蒸煮之前的长度伸长率和长度宽度比。较年轻的老化幼苗（10天）记录的生长和产量参数，产量和收获指数显着高于较老的老化幼苗（18天），而较老的幼苗（18天）记录到最大可用NPK。 10天大的幼苗分别比14天和18天的幼苗多出6.4％和12.9％的谷粒产量。在移栽日期，幼苗和杂​​种的年龄之间，对谷物产量的相互作用具有显着影响。与其余处理相比，在6月27日移植10天或14天大的PHB-71杂种可显着提高谷物产量

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