000			02799nab a22003497a 4500
999			_c62049 _d62041
001			62049
003			MX-TxCIM
005			20211006072303.0
008			200602s2020 ne |||p|op||| 00| 0 eng d
022			_a0167-1987
024	8		_ahttps://doi.org/10.1016/j.still.2020.104675
040			_aMX-TxCIM
041			_aeng
100	0		_913861 _aHongguang Wang
245	1	0	_aEffects of tillage practices on grain yield formation of wheat and the physiological mechanism in rainfed areas
260			_aAmsterdam (Netherlands) : _bElsevier, _c2020.
500			_aPeer review
520			_aAlthough the effect of tillage practices on crops has been well studied, the systematic effect of these practices on the yield formation process of wheat in rainfed regions is often poorly reported. Here, four tillage practices, namely, strip rotary tillage (SR), strip rotary tillage after subsoiling (SRS), rotary tillage (R) and rotary tillage after subsoiling (RS), were performed during 3 wheat–growing seasons to study the effect of tillage practices on the yield formation process and the physiological mechanism in rainfed wheat. SRS and SR reduced the tiller numbers but increased the percentage of earring tillers. SRS and SR produced the spike numbers similar to those produced by RS and R but increased the grain numbers per spike by increasing the number of grains per spikelet. SRS reduced the evapotranspiration (ET) during the early–filling stage and increased the ET and water consumption ratio during the mid– and late–filling stages. Because of increased water consumption, the flag leaf water potential by SRS was improved during the late–filling stage; photosynthetic rate and superoxide dismutase activity also improved. Accompanied by the improvement in physiological characteristics, the post–anthesis dry matter accumulation by SRS increased significantly. The average grain yield by SRS in the three growing seasons was 6.0 %, 13.4 % and 7.0 % higher than those by SR, R and RS, respectively. The yield–increasing effect of subsoiling once could last for 3 years but the growth rate on the third year decreased from 8.6 % to 3.2 % in SRS, and decreased from 6.0 %–4.2 % in RS.
546			_aText in English
650		7	_2AGROVOC _913862 _aSpikes
650		7	_2AGROVOC _96005 _aDry matter
650		7	_2AGROVOC _96682 _aPlant water relations
650		7	_2AGROVOC _910495 _aWater potential
650		7	_2AGROVOC _91913 _aPhotosynthesis
650		7	_2AGROVOC _913863 _aSuperoxide dismutase
650		7	_aWheat _gAGROVOC _2 _91310
700	0		_98330 _aYu Zhenwen
700	0		_913864 _aYu Shi
700	0		_913865 _aYongli Zhang
773	0		_dAmsterdam (Netherlands) : Elsevier, 2020. _gv. 202, art. 104675 _tSoil and Tillage Research _x0167-1987 _w444738
942			_2ddc _cJA _n0