Variety Name -::- CR Dhan 701(IET 20852)
Developed by :
Dr.R.N.Rao, Mr.S.S.C Patnaik, Dr.G.J.N Rao,Dr.R.L.Verma,Dr.J.L.kATARA, Dr.O.N.Singh,Dr.T.Mohapatra
Parentage & details of pedigree :
CRMS 31 xcrl 22R
Breeding method :
Heterosis breeding utilizing CGMS(three line system)type of male sterility
Closely resembling variety :
Area of adaptation :
Medium slender translucent grains with no abdominal white,good HRR (51.6.%) intermediate alkali value(5.0) and intermediate amylose content(25.61%).It has good cooking /eating quality with accptable values.
Morphological character :
Compact and long panicle,well exserted panicle
Plant Height(cm) :
Maturity (Days) :
Reaction to major diseases :
Moderately Resistant to Rice Tungro Virus,Sheath blight
Reaction to major insect pest :
Moderately resistant to Green Leaf Hopper
Non-lODGING,Moderate tillering habit,Non-Shattering, responds to fertilizer up to 100 Kg N in kharif,and 120Kg N in Rabi.Suitable for normal showing conditions.Seed Rate 15Kg/ha for transplanting conditions.
Reaction to abiotic stress :
Adoptable to low conditions.
Avg. yield in normal condition(Kg/ha) :
6000 to 6500kg/ha in kharif season
7000 to 7500 kg/ha in Rabi Season
Agency responsible for maintaining breeder seed :
Recomended ecology :
Irrigated and shallow low lands both in kharif and Rabi Seasons
Information on acceptability :
Specific recomendation :
The Hybrid responds up to 100kg N /ha in dry season.Nitrogen applied in equal 4 splits at basal,21 DAT,PI and panicle emergence stage was found more beneficial for grain filling.Potash also should beapplied in two splits,755 in basal and 25% at PI which help in reducing spikelet sterility.Transplanting one seedling per hill at a spacing of 15X15 cm is recommended for for better grain yield.For seed production ,there is no problem for synchronization since two parents have very close flowering duration during the seed production seasons.Standard Hybrid seed production practices like staggered sowing of male parent,GA3 spray,supplementary pollination etc.should be followed to get higher seed yields.
Any other Information :
1.Better grain quality and superior performance(>20%) over comparable checks.
2.Seed production of this Hybrid is easier and more profitable because of the high out crossing and higher seed yields.
3.Suitable for both wet and Dry Seasons in the irrigated and shallow favourable lowlands.
4.The Hybrid can tolerate excess stagnant water for 10-15 days at vegetative stage.
5.The Hybrid also showed very good performance under low light conditions and is suitable for low light conditions prevailling in Eastern India Including Odisha.
6.The Hybrid was recommended for late irrigated/shallow lowlands of Bihar and Gujurat in the 44th Rice Work Shop(DRR) 2009 and it was the first long duration rice hybrid to be relesed in the country.