Knowledge of crop development pattern or phenology is useful for adopting improved management practices during crop growth cycle for higher yields. Additionally, knowledge of occurrence of growth stages can also be used in many physiological studies to identify the critical growth stage during plant growth that are sensitive to environmental factors, to take necessary measures to avoid stress and improve crop yields. The rice cultivars which are having about 135 days growth cycle (sowing to physiological maturity) In the present study, the initiation of tillering started at 19 days after sowing, active tillering at 50 days after sowing, initiation of primordial floral at 68 days after sowing, booting at 95 days after sowing, flowering at 106 days after sowing and physiological maturity at 134 days after sowing.Maximum root length, tillering per plant and plant height were achieved at about 110 days after sowing. Quantification of these growth stages can be useful in adopting appropriate management practices during rice crop growth cycle for maximizing yield, concentration, and uptake of macro- and micronutrients varying with plant age and nutrient availability. Nutrient uptake
pattern during crop growth cycle may help in fertility management of lowland rice in Brazilian lowland soils.
Knowledge of crop development pattern or phenology is useful for adopting improved management practices during crop growth cycle for higher yields. Additionally, knowledge of occurrence of growth stages can also be used in many physiological studies to identify the critical growth stage during plant growth that are sensitive to environmental factors, to take necessary measures to avoid stress and improve crop yields. The rice cultivars which are having about 135 days growth cycle (sowing to physiological maturity) In the present study, the initiation of tillering started at 19 days after sowing, active tillering at 50 days after sowing, initiation of primordial floral at 68 days after sowing, booting at 95 days after sowing, flowering at 106 days after sowing and physiological maturity at 134 days after sowing.Maximum root length, tillering per plant and plant height were achieved at about 110 days after sowing. Quantification of these growth stages can be useful in adopting appropriate management practices during rice crop growth cycle for maximizing yield, concentration, and uptake of macro- and micronutrients varying with plant age and nutrient availability. Nutrient uptake pattern during crop growth cycle may help in fertility management of lowland rice in Brazilian lowland soils.
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