Abstract
An experiment was conducted at Meghalaya, during 2006–08 to study the effect of rice straw mulching on growth, yield attributes and yield of different rapeseed (Brassica campestris L.) varieties, namely ‘M 27’, ‘TS 38’ and ‘Sikkim Sarson’. The plant height of rapeseed increased by 7.2% at harvest due to rice straw mulching @ 5.0 tonnes/ha over the non-mulching and it was highest (96.88 cm) in ‘TS 38’. Lower values (–2.9°C) of canopy air temperature difference were recorded in the mulch treatment than under control (–2.3°C). Mulching resulted in storage of 2.0% more soil moisture in the root zone of the crop over the unmulched control, indicating better microclimate for crop growth and development. Leaf area index was higher in ‘TS 38’ and in mulching treatment. Number of siliquae/plant (24.6%), seeds/siliqua (17.6%) and seed yield (35.4%) increased due to mulching over the non-mulching. The varieties differed significantly with respect to 100-seed weight and it was highest (0.37 g) in ‘TS 38’. Highest seed yield was obtained in ‘TS 38’ (1.51 tonnes/ha), followed by ‘M 27’ (1.46 tonnes/ha) and significantly superior over the ‘Sikkim Sarson’ (0.97 tonnes/ha).
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Claims 13
Claim · model-written summary
Rice straw mulch increased rapeseed height by 7.2% at harvest.
Verbatim
e0“The plant height of rapeseed increased by 7.2% at harvest due to rice straw mulching @ 5.0 tonnes/ha over the non-mulching”
Claim · model-written summary
TS 38 had the highest plant height, 96.88 cm.
Verbatim
e0“it was highest (96.88 cm) in ‘TS 38’”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Canopy air temperature difference was lower under mulch than control.
Verbatim
e0“Lower values (–2.9°C) of canopy air temperature difference were recorded in the mulch treatment than under control (–2.3°C)”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Mulch increased root-zone soil moisture by 2.0%.
Verbatim
e0“Mulching resulted in storage of 2.0% more soil moisture in the root zone of the crop over the unmulched control”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Leaf area index was higher in TS 38.
Verbatim
e0“Leaf area index was higher in ‘TS 38’ and in mulching treatment”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Mulch increased leaf area index.
Not reportedComparator
Verbatim
e0“Leaf area index was higher in ‘TS 38’ and in mulching treatment”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Mulch increased siliquae per plant by 24.6%.
Verbatim
e0“Number of siliquae/plant (24.6%), seeds/siliqua (17.6%) and seed yield (35.4%) increased due to mulching over the non-mulching”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Mulch increased seeds per siliqua by 17.6%.
Verbatim
e0“Number of siliquae/plant (24.6%), seeds/siliqua (17.6%) and seed yield (35.4%) increased due to mulching over the non-mulching”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Mulch increased seed yield by 35.4%.
Verbatim
e0“Number of siliquae/plant (24.6%), seeds/siliqua (17.6%) and seed yield (35.4%) increased due to mulching over the non-mulching”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Varieties differed significantly in 100-seed weight, highest in TS 38 at 0.37 g.
Verbatim
e0“The varieties differed significantly with respect to 100-seed weight and it was highest (0.37 g) in ‘TS 38’”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
TS 38 had the highest yield at 1.51 tonnes/ha.
Verbatim
e0“Highest seed yield was obtained in ‘TS 38’ (1.51 tonnes/ha)”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
M 27 yielded 1.46 tonnes/ha.
Verbatim
e0“followed by ‘M 27’ (1.46 tonnes/ha)”
t0“rapeseed (Brassica campestris)”
Claim · model-written summary
Sikkim Sarson yielded 0.97 tonnes/ha, significantly below the other varieties.
Verbatim
e0“significantly superior over the ‘Sikkim Sarson’ (0.97 tonnes/ha)”
t0“rapeseed (Brassica campestris)”
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