Introduction and Screening Experiment of Early-maturing Glutinous Rice Varieties
[Objective]The aim was to screen early-maturing glutinous rice varieties suitable for planting in Lujiang county.[Method]Twelve medium-early maturing glutinous rice varieties were introduced from surrounding planting units,and each variety had two sowing dates.The growth period,field traits,resistance and yield structure of each tested variety under two sowing dates were analyzed and compared.[Result]The glutinous rice varieties normally sown in early and middle May were sown in early and late April.The growth period was prolonged,the leaves and internodes were relatively reduced,the number of effective panicles was increased,the panicle rate was reduced,the 1000-grain weight was lighter,the yield was reduced,the lodging resistance was deteriorated,the three major diseases of rice,the pre-harvest sprouting were heavier,and the comprehensive resistance was reduced.[Conclusion]Considering early listing,increasing economic benefits and optimizing crop stubble,according to the comprehensive analysis of the growth period,field traits and yield structure of the tested varieties,Guangmingnuo 1 is an ideal rice variety,which is suitable for promotion and planting in Lujiang county.The second is Wankennuo 1,which has high yield in early sowing,but the comprehensive resistance is the worst.It is necessary to strengthen the prevention and control of diseases and insect pests such as rice blast during planting.The indica glutinous rice Liangyou 1674 should be sown appropriately late,avoiding high temperatures during the heading and flowering period,and strengthening the prevention and control of rice smut,which is also worth promoting and planting.
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