The effects of different levels of irrigation and weeding weed management on some growth indices maize sorghum varieties Ks260 Speth feed
Subject Areas :
mansureh
khodadadi
1
(Mashhad Ferdowsi University)
ali
ghanbari
2
(mashhad ferdowsi uni)
reza
ghorbani
3
(mashhad ferdowsi uni)
ghorban ali
asadi
4
(mashhad ferdowsi uni)
mehdi
rastgoo
5
(mashhad ferdowsi unh)
Keywords: Growth indices, weed management, Irrigation level sources,
Abstract :
Water is considered to be the main component of growth and survival for plants, and is considered to be the most important growth factor for these creatures. The study of the response of different growth parameters and yield of corn and sorghum to underwater conditions, as well as the quantification of corn and sorghum competition with weed-based weed control in field conditions, plays an important role in explaining the effect of this component. . For this purpose, a field experiment was conducted in a factorial experiment in split plot experiment in 2013-2012 growing season in a randomized complete block design with three replications. Irrigation levels (65, 75, 85 and 100% water requirement), the main factor of the experiment and two varieties of corn and sorghum, weed management and weed management were factorial and as sub factors. In this design, the growth indices of corn and sorghum were measured and the effect of different levels of irrigation on these indices was investigated. . As a result, 100% water requirement was obtained with the highest leaf area, dry weight, growth rate, relative growth rate, leaf area durability (58.1, 10.81, 8.54, 10.92, 41.3 , 22/1), the most suitable irrigation and treatment was 65% water requirement with minimum leaf area values, dry weight, growth rate, relative growth rate, leaf area durability (0.073, 0.056, 0.26, 3.5, 0.52, 0.75), were introduced as treatment close to the drought stress and dehydration treatment. All treatments
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