Grain yield response to cultivar and harvest time of the first crop in rice ratooning in southwestern Japan
نویسندگان
چکیده
Rice (Oryza sativa L.) ratooning has attracted attention due to its higher yield potential compared with conventional methods. Here, field experiments were conducted in southwestern Japan 2019 and 2020 determine the effects of cultivar (‘Takanari’, an indica cultivar, ‘Koshihikari’, a japonica cultivar) harvest time first crop (early late) on grain yields second crops rice ratooning. For Koshihikari 2019, did not differ between times. However, Takanari produced lower at late harvest. had fewer spikelets, filled 1,000-grain weight for 2020, In stubble nonstructural carbohydrate (NSC) content increase from early harvest, whereas leaf area index (LAI) decreased times; this difference was more apparent than Koshihikari. Contrastingly, NSC increased but LAI Thus, late-harvested might be attributed resulting spikelets. contrast, maintained maintenance spikelet numbers via content. Therefore, sufficient could essential improving crop.
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ژورنال
عنوان ژورنال: Crop Science
سال: 2021
ISSN: ['1435-0653', '0011-183X']
DOI: https://doi.org/10.1002/csc2.20645