The COMPONENTS OF GROWTH AND PRODUCTIVITY RESULTS OF THREE VARIETIES OF CORN (Zea mays L) UNDER DROUGHT STRESS THROUGH WATERING FREQUENCY
PRODUCTIVITY RESULTS OF THREE VARIETIES OF CORN (Zea mays L) UNDER DROUGHT STRESS
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IGB Adwita Arsa(1*)
Universitas Nusa Cendana
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Calvin Dewa Dato(2)
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Muhamad Kasim(3)
(*) Corresponding Author
Abstract
The purpose of this research is to determine the growth components and productivity of three corn varieties (Zea mays L.) in response to the frequency of water irrigation. The treatments were arranged in a two-factor factorial design within a Randomized Complete Block Design (RCBD). The first factor was the frequency of water irrigation, consisting of 3 treatment levels: once a day (F1), every 2 days (F2), and every 3 days (F3). The second factor was the variety factor (V), comprising 3 varieties: Bonanza F1, hybrid variety Pertiwi 5, and variety Bisi 18, resulting in 9 treatment combinations. Each treatment was replicated three times, yielding a total of 27 experimental units. The parameters observed in this study included plant height, leaf count, stem diameter, flowering age, cob length, cob diameter, and cob fresh weight.
The results of the research indicate that the frequency of water irrigation significantly affects the leaf count at 14 days after sowing (HST), stem diameter, cob length, cob diameter, and cob fresh weight. Meanwhile, the variety factor significantly influences plant height and leaf count at 14 HST and post-flowering, stem diameter, cob diameter, and cob fresh weight. The interaction between the frequency of water irrigation and variety has a significant impact on stem diameter, cob diameter, and cob fresh weight. The best varieties for all frequencies of water irrigation are Pertiwi-5, and varieties tolerant to drought stress are Pertiwi-5 and Bisi-18.
