Plants respond with changes in their pattern of gene expression and protein products when exposed to low temperatures. Thus ability adapt has an impact on the distribution survival plant, crop yields. Many species tropical or subtropical origin are injured killed by non-freezing temperatures, exhibit various symptoms chilling injury such as chlorosis, necrosis, growth retardation. In contrast, tolerant able grow at cold Conventional breeding methods have met limited success improving...

Abiotic stresses collectively are responsible for crop losses worldwide. Among these, drought and salinity the most destructive. Different strategies have been proposed management of these stresses. Being a complex trait, conventional breeding approaches resulted in less success. Biotechnology has emerged as an additional novel tool deciphering mechanism behind The role compatible solutes abiotic stress tolerance studied extensively. Osmotic adjustment, at physiological level, is adaptive...

The implication of molecular biology in crop improvement is now more than three decades old. Not surprisingly, technology has moved on, and there are a number new techniques that may or not come under the genetically modified (GM) banner and, therefore, GM regulations. In cisgenic technology, cisgenes from crossable plants used it single procedure gene introduction whereby problem linkage drag other genes overcome. approach similar compared with classical breeding plant should be treated...

Development of crop varieties which are resistant against many economically important diseases is a major challenge for plant biotechnologists worldwide. Although much progress in this area has been achieved through classical genetic approaches, goal can be more selective and robust manner with the success engineering techniques. In regard, RNA interference (RNAi) emerged as powerful modality battling some most notoriously challenging caused by viruses, fungi bacteria. RNAi mechanism...

Genetic material in plants is distributed into nucleus, plastids and mitochondria. Plastid has a central role of carrying out photosynthesis plant cells. transformation becoming more popular an alternative to nuclear gene because various advantages like high protein levels, the feasibility expressing multiple proteins from polycistronic mRNAs, containment through lack pollen transmission. Recently, much progress plastid engineering been made. In addition model tobacco, many transplastomic...

Aromatic cultivars of rice respond differently to nitrogen application as compared nonaromatic rice. Most the aromatic are susceptible disease and insect pest attack, more prone lodging. Therefore, is key input for increasing productivity Research analyzing effects N level on yield nitrogen-use efficiency (NUE) modern not well documented. present study was conducted optimize levels higher NUE cultivars. Across all genotypes, mean nitrogen-fertilizer response highest at 40 kg N/ha other (0,...

A study of the macro- and micro-nutrients some soils Senapati district, Manipur (India) was carried out to soil fertility micro- nutrient status their relationship with each other. Surface (0 30 cm) investigated for diethylene-triaminepentaacetate (DTPA)- extractable Zn, Cu, Mn, Fe hot water B in relation chemical properties 20 representative soils. The mean values DTPA-extractable were 2.36, 1.52, 113.93, 766.03 0.10 mg kg-1, respectively. available N, P2O, K2O SO4-S 382.04, 38.31, 208.86...

Aim of the study is analyse inheritance seed yield and its contributing traits through combining ability analysis in field pea for this seven genotypes as parents viz., Makyatmubi, Makuchabi, KPMR-851, Prakash, Pant P-217, Rachna VL-5 diallel without reciprocals during Rabi 2013-14 were selected. The genetic was carried out following Griffing's Method II with Model I (1956) twelve quantitative characters. ANOVA revealed highly significant differences among crosses all characters studied....

Willows being multipurpose species are well recognized in short rotation forestry world over. 200 clones of different and hybrids were procured from twenty countries over the period three years. These subjected for nursery screening further 18 promising planted March, 2006 at university main campus Nauni, Solan, Himachal Pradesh. The five years growth performance was evaluated clone J-799 has given maximum plant height (19.33 m) which is par with NZ-1140 (16.33 followed by SI-63-007 (14.30...

Profile distribution of DTPA-extractable micronutrient cations (Zn, Cu, Fe and Mn) their relationship with various soil properties were studied in eighteen profiles citrus orchard Ukhrul district Manipur. The content Zn, Mn higher surface horizons decreased depth most the ranged from 0.08 to 0.76, 0.01 0.34, 8.0 54.0 1.6 20.4 mg Kg−1, respectively. Surface contain sufficient amount except Zn. Distribution was influenced positively EC first (0–20 cm) second layer (20–40 cm), Cu inversely by...

Around 100 clones of tree willows were subjected for nursery screening twice on morphometric traits. Genetic diversity was assessed in twenty-five genetically superior willow hailing from six countries using 16 SSR primers. Fourteen primers amplified the DNA but only ten showed polymorphism. Total 34 bands scored, out that 27 found to be polymorphic and 7 monomorphic. Three 100% polymorphism whereas 79.4% recorded total. The dendrogram obtained markers revealed clone SE-69-002 (S. matsudana)...

Eight parents of aromatic rice were crossed in half diallel mating design without reciprocal including parents. The evaluated for eleven different characters. Genetic analysis was done through Griffing’s Method II Model I. Analysis variance revealed highly significant differences among and their crosses all the Combining ability that gca sca most characters studied F1 generation. Amongst parental lines, Basmati Kasturi a good general combiner plant height at maturity, total number spikelets...