Study effect of moisture stress in different growth stages on yield of early maturity grain sorghum cultivars.
2005
Fazanjoo, Moosa | Naroei rad, Mohammad Reza | Keyka, Kgolam Ali
For study of moisture stress effects on different stages of growth on grain sorghum yield in sistan region, this experiment with 2 early maturity cu1ti~ars (payam and check local) with 4 treatments: - ~ SI(chcck): Irrigation in all of growth stages after 100 mm evaporation from pan class A S2: Stress aplication since 7 leaf for panicle development SJ: Stress aplication since flowering initiation for filling grain S4: Stress aplication since filling grain for maturity. This experiment carried out as split plot on base of (RCBD) with 3 replication during 2 years. Mainplot include 4 level and subplot was 2 cultivars. Each cultivars planted in 6 rows with 5 m longth and 30 em space. After maturity 0/5 m deleted from margin and harvest leve1 was 4/8 m2. Results showed check local( zabol native) with 3/446 t/ha had the most yield and the least belong to stress aplication since filling grain for maturity with payam cultivar(2/92 t/ha). Kay words:. moisture stress, grain yield, early maturity cuItivars, evaporation pan class A, mainplot, subplot
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