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首页> 外文期刊>Cotton Reseach Journal >Studies on Flowering Behaviour and Fruiting Pattern of Early Maturing Germplasm Lines of Egyptian Cotton (G.barbadense, L.)
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Studies on Flowering Behaviour and Fruiting Pattern of Early Maturing Germplasm Lines of Egyptian Cotton (G.barbadense, L.)

机译：埃及棉花早熟种质系开花行为和结果模式研究（G.barbadense，L.）

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摘要

The flowering behaviour and fruiting pattern of some early maturing germplasm lines of Egyptian cotton (G.barbadense, L.) was studied during the course of morphological characterizationfor use in crop improvement programmes. The results revealed thatprolonged flowering and boll formation period was longer in early maturing accessions than the late maturing variety, Suvin. The germplasm lines viz., ICB-28, ICB-174, EC-22, NDGB-1, NDGB-2NDGB-26, NDGB-32, NDGB-36and NDGB-61 are early maturing accessionidentified from the germplasm and their maturity period ranged from 151 to 165 days against 210 days in Suvin. These accessions produced more number of flowers in the peakflowering stage. However, mature bolls plant' were low due to higher shedding percentages. Maximumflowering of 72.6 % was observed in Recessions namely EC-22, NDGB-61 and ICB-174 from second to fourth week of October, while most of the others completed their maximum flowering in the first to second week of October. The maximum boll formation was noticed in EC-22, ICB-174 and NDGB-61 from 19th to 26th October. Though all the nine accessions are early maturing, only five genotypes have been identified as high yielding types and the yield variedfrom 7.3 q ha~(-1) to 9.7 q ha~(-1). The information onflowering andfruiting behaviour of G.barbadense accessions are highly helpful for the effective utilization of germplasm in the breeding programmes and subsequent identification of progenies for desired characters. The accession EC-22, NDGB-61, ICB-174 and ICB-28 were identified as early maturing accession with desirable yield potential, minimal square shedding and maximum boll retention ability as compared to other germplasm lines under Coimbatore weather conditions of Tamil Nadu.
机译：在形态鉴定过程中研究了埃及棉花（G.barbadense，L.）的一些早熟种质系的开花行为和结果模式，用于作物改良计划。结果表明，与早熟品种Suvin相比，早熟品种的花期延长和花铃形成期更长。种质系，即ICB-28，ICB-174，EC-22，NDGB-1，NDGB-2NDGB-26，NDGB-32，NDGB-36和NDGB-61是从种质中鉴定的早熟种，其成熟期为从151天到165天不等，而在苏文省则为210天。这些种在高峰开花期产生了更多的花。但是，由于脱落率较高，成熟的棉铃植物很低。在10月第二至第四周的EC-22，NDGB-61和ICB-174衰退中，观察到最大开花量达到72.6％，而其他大多数则在10月的第一到第二周完成了最大开花量。 10月19日至26日，在EC-22，ICB-174和NDGB-61中发现了最大的棉铃形成。尽管所有九个种质都早熟，但只有五个基因型被鉴定为高产类型，产量从7.3 q ha〜（-1）到9.7 q ha〜（-1）不等。信息巴巴德氏菌种的开花和结果行为对于在育种程序中有效利用种质和随后鉴定所需性状的后代非常有帮助。与泰米尔纳德邦哥印拜陀天气条件下的其他种质系相比，EC-22，NDGB-61，ICB-174和ICB-28品种被鉴定为具有期望的产量潜力，最小的正方形脱落和最大的铃铃保留能力的早熟品种。

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