Hybrid Seed Production in Maize Crop
परिचय (Introduction):-
· मक्का में अंत:प्रजात व एकल क्रॉस संकरों के बीज उत्पादन को आधार बीज उत्पादन कहते हैं तथा त्रिपथ संकरों व द्वि क्रॉस संकरों के बीज उत्पादन को प्रमाणीकृत बीज उत्पादन कहते हैं।
(Seed production of inbreds and single cross hybrids in maize is called foundation seed production and seed production of three way hybrids and double cross hybrids is called certified seed production.)
· मक्का की फसल में 3 प्रकार के संकर उत्पादित किए जाते हैं:-
(3 types of hybrids are produced in maize crop: -)
i. एकल क्रॉस संकर (Single cross hybrid):- दो अंत:प्रजातों के मध्य संकरण। A X B
(Hybridization between two inbreds. A X B)
उदाहरण (Example):- COH – 1 (UMI – 29 X UMI - 15)
COH – 2 (UMI – 810 X UMI - 90)
ii. त्रिपथ संकर (Three way hybrid):- एकल क्रॉस संकर व अंत:प्रजात के संकरण। (A X B) X C
[Hybridization between single cross hybrid and inbred. (A X B) X C]
उदाहरण (Example):- Ganga – 5
iii. द्वि क्रॉस संकर (Double cross hybrid):-
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