Clonal Selection and Hybridization

क्लोनीय वरण व संकरण (Clonal Selection and Hybridization):-

क्लोनीय वरण (Clonal Selection):-

•      परिभाषा (Definition):- जब क्लोनीय फसलों में उपस्थित प्राकृतिक विविधता का वरण द्वारा शोषण किया जाता है तो इसे क्लोनीय वरण कहते हैं।

(When the natural diversity present in clonal crops is exploited by selection, it is called clonal selection.)

•      पौधों के लक्षण प्रारूप पर वातावरण व जीन प्रारूप का प्रभाव पड़ता है।

(Environment and genotype affect the phenotype of plants.)

•      स्वपरागित फसलों में क्लोनीय वरण शुद्ध वंशक्रम वरण के समान ही होता है।

(In self-pollinated crops, clonal selection is similar to pure line selection.)

•      पौधे 2 प्रकार के लक्षण प्रदर्शित करते हैं:-

(Plants exhibit 2 types of characters: -)

i. उच्च वंशागतित्व लक्षण (High heritability characters):- इनके लिए क्लोनीय वरण प्रभावी होता है। उदाहरण:- पौधों की लंबाई, पुष्पनकाल, रोगरोधिता आदि।

(Clonal selection is effective for these characters. Examples: - Length of plants, flowering time, disease disease resistance etc.)

ii. निम्न वंशागतित्व लक्षण (Low heritability characters):- 

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