Heterosis: Molecular genetic principle

Heterosis is the phenomenon of superiority of character of the offspring than the mid parent value in terms of fertility, yield, speed of development and other QTL character. The concept of heterosis is very used in the genetic study for the crop production and evolution of the plants. Though up to now the molecular genetic basis of the heterosis is undefined, the genetic work on this sector has made somehow successful result and the molecular genetic basis of heterosis is going to be coined soon. There are some classical hypotheses to explain the heterosis as dominance and over dominance.....

   Heterosis: Molecular basis

Heterosis: A concept that I have received

A debateful concept that does not even now could unroll the mystery of the question what results in the phenotypic superiority of a hybrid over its parents with the certain QTL loci. A concept that has the miraculous phenomenon in the realm of plant breeding but the exact genetic phenomenon up to now is unknown. It is a concept called as heterosis which is hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. Different research conducted on the subject heterosis has resulted the different unrolling but all have their own results differently. Some scientists concluded that heterosis is due to the effect of over dominance and epistasis some said that it is due to the dominance. Some have also claimed that only one effect do not suffices the phenomenon of the heterosis. There is the need of integration of such genetic tools. Some research evidences showed that both the dominance and over dominance have a role in heterosis with some involvement of epistasis although the relative contribution of each of these mechanisms is still obscure.

   Heterosis

गजल

नाता तिम्रो मेरो आज मारेर जाँदै छु
प्रेमको यो अनौठो खेल हारेर जाँदै छु।।

सजाइयो सपना  कति बुनियो कल्पना हरु
मनै मनको दरबार आज खारेर जाँदै छु।।

हुर्काएर पनि नाता जोगाउन सकिएन
फुल्ने फुल कोपिलामै झारेर जाँदै छु।।

दोषी तिमी कि म या थियो परिस्थिति
तिम्रै माया तिमीलाईनै सारेर जाँदै छु।।

जबाफ खोज्छ मन यहाँ प्रश्न थरिथरिका
बेजबाफी छु म आफैँलाई टारेर जाँदै छु।।

                                                   - श्रीकृष्ण अधिकारी

गजल

खेल हो जिन्दगी सफल हारेर हुँदैन
ज्ञान र धर्मका कुरा यहाँ पारेर हुँदैन।।

भावनाको कदर होइन पैसाको मूल्य ठुलो
यहि छ कटु-सत्य यथार्त टारेर हुँदैन।।

छेपाराको के कुरा  मान्छे फेर्छन रंग अनेक
दया र करुणा को बिउ यहाँ सारेर हुँदैन।।

जे गरेनी जसो गरेनी चल्छ  यहाँ
कपटी र धुर्त्याईंलाई  बार बारेर हुँदैन।।

चाकरी र चाप्लुसी धेरै मौलएपछी
साहास र मेहनत अब खारेर हुँदैन।।

                                            -   श्रीकृष्ण अधिकारी 

Proposal

Proposal on
ENHANCEMENT OF ECONOMIC STATUS OF MAIZE FARMER UNDER CROP ROTATION OF LENTIL AND MAIZE WITH CROP RESIDUE MANAGEMENT
By Shree Krishna Adhikari 

ENHANCEMENT OF ECONOMIC STATUS OF MAIZE FARMER UNDER CROP ROTATION OF LENTIL AND MAIZE WITH CROP RESIDUE MANAGEMENT from Shree Krishna Adhikari