Varied responses of black gram (Vigna mungo) to certain foliar applied chemicals and plant growth regulators

Varied responses of black gram (Vigna mungo) to certain foliar applied chemicals and plant growth regulators

2008

A:PS

The effects of NAA (40 ppm), salicylic acid (125 ppm), mepiquat chloride [mepiquat] (125 ppm), brassinolide (0.1 ppm), triacontanol (100 ppm) and micronutrient mixture on the performance of black gram (cv. Aduthurai 5) were studied in Killikulam, Tamil Nadu, India, during 2002-03. Black gram exhibited significant changes in growth, physiology and yield due to the application of chemicals and plant growth regulators. The foliar application of NAA at the pre-flowering stage increased plant height, number of branches, leaf area index and leaf area duration. Photosynthetic efficiency was greatest in plants treated with brassinolide, as evident in greater specific leaf weight, chlorophyll content, soluble protein content, and nitrate reductase activity. Among the treatments, brassinolide was the most effective in the enhancement of dry matter accumulation, number of pods and seeds per plant, and seed yield. The seed protein content was also improved by brassinolide application.

v.31(2):110-113, LEGUME RESEARCH

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