EFFECT OF DATES OF SOWING AND STAGES OF HARVESTING ON FORAGE YIELD AND QUALITY OF MAIZE (ZEA MAYS L.) VARIETIES
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Date
2000
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AAU, Anand
Abstract
The investigation was earned out at the Forage Research Project Farm, Gujarat Agricultural University, Anand during the year 1999, to assess the "Effect of dates of sowing and stages of harvesting on forage yield and quality of maize varieties". The experiment was laid out in Split Plot Design with three replications. The treatment comprised of three dates of sowing (30th June, 15th July, and 30th July), three harsvesting stages (Tasseling, Silking and Milking stages) and two varieties (African Tall, Gujarat Maize-2). The study revealed that the sowing of maize crop on 30th June (D]) recorded significantly higher leaf length, leaf width, total number leaves and stem thickness, llie highest GFY, DMY, CPY, NDF, IVDMD and DDM were also obtained when maize crop was sown on 30th June. June. The harvesting of maize crop at silking stage (T3) recorded significantly high leaf length, leaf width, number of leaves and stem thickness. The highest GFY, DMY, CPY, INDF and DDM were also obtained when crop was harvested at milking stage but harvesting at tasseling stage gave significantly higher CP and IVDMD contents. Among two varieties, variety African Tall (V2) produced significantly higher total number of leaves, leaf length, leaf width and stem thickness. The highest GFY, DMY, CPY and DDM production as well as DM content were also obtained with variety African Tall, but variety Gujarat Maize-2 synthesized significantly higher CP and IVDMD contents. From the results of the investigation it could be inferred that rowing of maize crop on 30th June using variety African Tall and harvesting it at milking stage was most effective in obtaining the higher green forage, dry matter as well as crude protein yield , which is also superior in quality.
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AGRONOMY, AGRICULTURE, A Study