Wheat (Triticum aestivum L.) Yield and Yield Components as Influenced by Herbicide Application in Kaffa Zone, Southwestern Ethiopia

Table 8

Effect of weed control treatments on yield component and yield of wheat in 2020 main cropping season.

Treatments	Grain yield (kg ha^−1)	Biological yield (kg ha^−1)	Harvest index (%)
0.5 kg ha^−1 2,4-D amine salt + one HW	2132.1^fg	6230.4^ef	34.11^hi
1 kg ha^−1 2,4-D amine salt + one HW	2490.2^efg	7274.1^de	34.24^hi
1.5 kg ha^−1 2,4-D amine salt + one HW	2929.0^cde	7785.2^cd	37.56^def
0.4 kg ha^−1 pyroxsulam + one HW	2725.4^de	7539.0^d	36.10^fg
0.5 kg ha^−1 pyroxsulam + one HW	3494.5^bc	8867.4^bc	39.39^bc
0.6 kg ha^−1 pyroxsulam + one HW	3225.3^bcd	8402.0^bcd	38.34^cde
0.5 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	2650.7^ef	7449.9^d	35.56^gh
0.75 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	3443.5^bc	8859.7^bc	38.82^bcd
1 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	3635.6^b	9004.0^b	40.32^ab
1 kg ha^−1 2,4-D amine salt	2041.2^g	6051.7^f	33.68^i
0.75 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12%	2822.0^de	7641.6^d	36.86^efg
0.5 kg ha^−1 pyroxsulam	2828.3^de	7612.5^d	37.13^efg
Two HW 30 and 45 DAE	3547.1^b	8885.4^bc	39.89^abc
Weed-free check	4252.8^a	10223.0^a	41.57^a
Weedy check (unweeded)	1327.4^h	4524.8^g	29.23^j
LSD (5%)	567.16	1217.5	1.68
CV (%)	11.69	9.38	2.73

Same letter: means are not significantly different. CV, coefficient of variation; LSD, least significant difference; HW, hand weeding; DAE, days after crop emergence.