IDENTIFICATION OF CONTINGENT CROPS FOR DELAYED SOWING UNDER CHANGED CLIMATE IN DRYLAND AGRICULTURE
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Date
2019-07-22
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE
Abstract
A field experiment was conducted during kharif 2018 on āIdentification of
contingent crops for delayed sowing under changed climate in dryland agricultureā at
Dryland Agriculture Project Unit, GKVK, Bengaluru, Karnataka. The experiment
comprised of two factors laid out in Factorial Randomized Complete Block Design
(FRCBD) with three replications. Treatments consisted of two factors. i.e., sowing
windows and crops. Sowing windows consists of August 2nd fortnight, September 1st
fortnight and September 2nd fortnight and the crops included were foxtail millet, finger
millet, field bean, french bean and quiona. Date of sowing decides the availability of
weather conditions mainly temperature, light and humidity to the plants which have great
influence on expression of growth characteristics in plants. Delayed dates of sowing
caused drop in growth parameters which may be due to unfavorable weather conditions
to the plants which might have caused in lower rate of photosynthesis and reduced
accumulation of food materials. Among the contingent crops, french bean is the most
efficient contingent crop suitable for delayed sowings during August 2nd fortnight,
September 1st fortnight and September 2nd fortnight for obtaining higher vegetable yield
(2394, 1822 and 1150 kg ha-1, respectively) and rain water use efficiency (14.08, 10.98
and 8.16 kg ha-mm-1, respectively). French bean has obtained higher finger millet
equivalent yield (1789 kg ha-1), net returns (` 33191 ha-1) and BC ratio (2.62) compared
to field bean, finger millet, foxtail millet and quinoa.