Abstract
Aims: To study the influence of early post-emergence herbicides on photosynthetic pigments and yield in greengram. Study Design: Randomized Block Design. Place and Duration of Study: Field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore, India during summer 2022. Methodology: The experiment was laid out with three replications having nine treatments comprising of weedy check, different ready mix early post-emergence herbicides, two hand weedings and weed free. The chlorophyll content mg g-1 in the leaf sample was recorded at 30, 45 and 60 DAS. Grain yield and haulm yield was also calculated and expressed in kg ha-1. Results: Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value in all photosynthetic pigments viz., Chlorophyll a (1.105 mg g-1), Chlorophyll b (0.402 mg g-1), Total chlorophyll (1.601 mg g-1), Chlorophyll ab ratio and Carotenoids (0.413 mg g-1), whereas higher grain yield (908 kg ha-1) is achieved by the Pre-emergence (PE) application of PE Pendimethalin (30% EC) @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Propaquizafop 2.5% + Imazethapyr 3.75% ME Ready mix (RM) @ 125 g a.i ha-1 on 15 DAS. Conclusion: Among the early post-emergence herbicides, Imazethapyr 10% SL @ 100 g a.i ha-1+ Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS shown significant results in all the photosynthetic pigments and Propaquizafop 2.5% + Imazethapyr 3.75% ME Ready mix (RM) @ 125 g a.i ha-1 on 15 DAS shown significant results in the yield by suppressing the weeds.
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Claims 6
Claim · model-written summary
The pendimethalin followed by imazethapyr and quizalofop program produced the highest chlorophyll a, 1.105 mg g-1.
- Taxon
- Greengram
.jpg?width=60)
Vigna radiata var. radiatat0 - Treatment
- Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DASe0
- Outcome
- Chlorophyll ae0
- Direction
- higheste0
- Value
- 1.105 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value in all photosynthetic pigments viz., Chlorophyll a (1.105 mg g-1)”
Claim · model-written summary
The same program produced the highest chlorophyll b, 0.402 mg g-1.
- Taxon
- GreengramVigna radiata var. radiatat0
- Treatment
- Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DASe0
- Outcome
- Chlorophyll be0
- Direction
- higheste0
- Value
- 0.402 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value in all photosynthetic pigments viz., Chlorophyll a (1.105 mg g-1), Chlorophyll b (0.402 mg g-1)”
Claim · model-written summary
The same program produced the highest total chlorophyll, 1.601 mg g-1.
- Taxon
- GreengramVigna radiata var. radiatat0
- Treatment
- Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DASe1
- Outcome
- Total chlorophylle0
- Direction
- higheste1
- Value
- 1.601 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“Total chlorophyll (1.601 mg g-1)”
e1“Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value”
Claim · model-written summary
The same program produced the highest carotenoids, 0.413 mg g-1.
- Taxon
- GreengramVigna radiata var. radiatat0
- Treatment
- Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DASe1
- Outcome
- Carotenoidse0
- Direction
- higheste1
- Value
- 0.413 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“Carotenoids (0.413 mg g-1)”
e1“Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value”
Claim · model-written summary
The same program produced the highest chlorophyll ab ratio.
- Taxon
- GreengramVigna radiata var. radiatat0
- Treatment
- Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DASe1
- Outcome
- Chlorophyll ab ratioe0
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“Chlorophyll ab ratio”
e1“Pre-emergence (PE) application of Pendimethalin 30% EC @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Imazethapyr 10% SL @ 100 g a.i ha-1 + Quizalofop-ethyl 5% EC @ 50 g a.i ha-1 (Tank mix) on 15 DAS significantly recorded highest value”
Claim · model-written summary
The pendimethalin followed by propaquizafop and imazethapyr program gave higher grain yield of 908 kg ha-1.
- Taxon
- GreengramVigna radiata var. radiatat0
- Treatment
- Pre-emergence (PE) application of PE Pendimethalin (30% EC) @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Propaquizafop 2.5% + Imazethapyr 3.75% ME Ready mix (RM) @ 125 g a.i ha-1 on 15 DASe0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 908 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Greengram (Vigna radiata L.)”
e0“higher grain yield (908 kg ha-1) is achieved by the Pre-emergence (PE) application of PE Pendimethalin (30% EC) @ 1 kg a.i ha-1 on 3 DAS followed by (fb) Early post-emergence (EPoE) Propaquizafop 2.5% + Imazethapyr 3.75% ME Ready mix (RM) @ 125 g a.i ha-1 on 15 DAS”
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