Drought Tolerance of Maize Genotypes for Yield and Yield Parameters Using Line Source Sprinkler Irrigation Technique

Indian Journal of Pure & Applied Biosciences Pub Date : 2020-12-30 DOI:10.18782/2582-2845.8460

Renuka S. Herakal

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Abstract

Forty maize genotypes were studied for influence of moisture stress on yield and yield characters using line source sprinkler irrigation technique during rabi-summer, 2016-17 and 2017-2018 using line source sprinkler irrigation technique. The genotypes, G32-DMIL 50, G16-DMIL 13, G39DMIDS 28, G4-DMIL 78, G28-DMIT 01, G38-DMIDS 15, G15-DMIL 23, G21-DMIL 47, G24-DMIL 84 and G37-DMIDS recorded higher yield compared to other genotypes. The genotype G32DMIL 50 found promising under various moisture regimes. The genotype G32DMIL 50 (96.50) and G16DMIL 13 (91.80) recorded significantly higher cob weight (g/cob) at M1 moisture regime whereas, significantly lower cob weight (g/cob) was recorded in genotype G6DMIT 30 (17.82), G12DMIL 58 (18.45), G5DMIL 150 (19.42), G19DMID 16 (20.75), G7DMIL 112 (22.15) and G17DMIL 52 (22.23) at M5 moisture regime. G21DMIL 47 (315.89), G28DMIT 01 (314.83) and G24DMIL 84 (311.70) recorded significantly higher number of seeds per cob and G6DMIT 30 (96.67) and G19DMID 16 (116.05) recorded significantly lower number of seeds per cob. Genotypes G12DMIL 58 (87.30), G38DMIDS 15 (85.01), G39DMIDS 28 (84.99), G26DMIL 63 (84.80), G24DMIL 84 (83.83) and G4DMIL 78 (83.44) recorded significantly higher shelling percentage.

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系源喷灌技术对玉米产量及产量参数的耐旱性影响

采用线源喷灌技术，在炎夏、2016-17和2017-2018三个季节研究了水分胁迫对40个玉米基因型产量和产量性状的影响。G32-DMIL 50、G16-DMIL 13、g39dmil 28、G4-DMIL 78、G28-DMIT 01、g38 - dmil 15、G15-DMIL 23、G21-DMIL 47、G24-DMIL 84和G37-DMIDS的产量均高于其他基因型。g32dmiil 50基因型在不同湿度条件下均表现良好。g32dmiil 50(96.50)和g16dmiil 13(91.80)在M1水分条件下的穗轴重(g/cob)显著高于g6dmiil 30(17.82)、g12dmiil 58(18.45)、g5dmiil 150(19.42)、g19dmid16(20.75)、g7dmiil 112(22.15)和g17dmiil 52(22.23)，而在M5水分条件下的穗轴重(g/cob)显著低于g32dmiil 50(91.80)。g21dmit47(315.89)、g28dmit01(314.83)和g24dmit84(311.70)的单穗轴种子数显著高于其他品种，g6dmit30(96.67)和g19dmit16(116.05)的单穗轴种子数显著低于其他品种。基因型G12DMIL 58(87.30)、g38dmil 15(85.01)、g39dmil 28(84.99)、G26DMIL 63(84.80)、G24DMIL 84(83.83)和G4DMIL 78(83.44)的脱壳率显著高于其他基因型。

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Indian Journal of Pure & Applied Biosciences

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