Seed soaking agent capable of cultivating multi-tiller robust seedlings of rice and use method thereof

A seed soaking agent and rice seed technology, applied in the direction of botany equipment and methods, applications, biocides, etc., can solve problems such as excessive growth, bakanae disease, and high quality requirements for seedlings, achieve root system development, promote early tillering, and increase resistance Effects of abilities on biotic and abiotic adversities

Active Publication Date: 2014-10-01
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reform of seedling raising and transplanting technology has become the focus of rice farming innovation, among which machine transplanting and throwing seedlings have very high requirements on the quality of seedlings, and traditional seedling raising technology is difficult to meet the new requirements
[0004] In addition, the low temperature in the early rice seedling raising period requires nylon covering, and the high temperature in single or continuous late seedling raising often causes bakanae disease and excessive growth.

Method used

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  • Seed soaking agent capable of cultivating multi-tiller robust seedlings of rice and use method thereof
  • Seed soaking agent capable of cultivating multi-tiller robust seedlings of rice and use method thereof
  • Seed soaking agent capable of cultivating multi-tiller robust seedlings of rice and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Adopt seed soaking agent aqueous solution (uniconazole concentration 50mg / L, brassinolide concentration 0.05mg / L, ClO 2 Concentration of 100mg / L, concentration of S-induced antigen 0.2mg / L) to treat the rice seeds, soak the seeds in the aqueous solution of the seed soaking agent for 36 hours, stir twice during the period, rinse the seeds with clean water for 2 times after soaking, and then germinate normally for 36 hours.

[0024] From May 2012 to October 2012, the experiment was carried out at the Fuyang base of the China Rice Research Institute. The field was selected to be flat and uniform, and the drainage and irrigation were convenient. The seedlings were sown quantitatively according to the routine, and the seedlings were transplanted to the field when the seedlings were 25 days old. Area 20m 2 , 4 repetitions. Field water and fertilizer management and pest and weed control are the same as conventional field production. Investigate when 25 days of seedling age, ...

Embodiment 2

[0040] On the basis of the plot test in 2012, a large-scale comparative test of the aqueous solution of the seed soaking agent was carried out in the same test field in 2013. The variety is the conventional japonica rice Chunjiang 119, and the concentration of the single component in the aqueous solution of the seed soaking agent is 50 mg of uniconazole. / L, brassinolide concentration 0.05mg / L, ClO 2 The concentration is 100mg / L, the concentration of S-induced antigen is 0.2mg / L, and the seed treatment method is the same as the plot test in 2012. The whole test field area is 3.6 mu, rectangular, divided into 4 sub-districts with equal area, each sub-district is 0.9 mu, wherein 2 sub-districts are transplanted with soaking agent aqueous solution to treat seedlings, and 2 sub-districts are clear water control. After the plots are harvested respectively, the output per mu is converted into, and the output per mu of the two plots treated with the aqueous solution of seed soaking a...

Embodiment 3

[0046] The difference from Example 1 is that the concentration of the individual components in the aqueous solution of the seed soaking agent is: uniconazole concentration 30mg / L, brassinolide concentration 0.1mg / L, S-induced concentration 0.1mg / L . Seed: Seed soaking agent aqueous solution = 1:1.5. Investigation was carried out at the age of 25 days. It was confirmed by experiments that the treatment of seed soaking agent aqueous solution reduced the height of seedlings, increased the number of tillers per seedling, and increased the root length and root stem of seedlings. Heavy and shoot dry weight, from appearance, the rice shoot of processing is more robust; In addition, the experiment confirms, also significantly increases (Table 5) after the seed-soaking agent aqueous solution treatment plot output, 5.3% than control increase.

[0047]Table 5, seed soaking in aqueous solution of soaking agent affects the quality of seedling field seedlings (embodiment 3)

[0048]

[...

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Abstract

The invention discloses a seed soaking agent capable of cultivating multi-tiller robust seedlings of rice and a use method thereof. The seed soaking agent comprises the components in percentage by weight: 30-100 percent of uniconazole, 0.025-0.10 percent of brassinolide and 0.1-0.5 percent of S-abscisic acid, and further comprises certain percentage of ClO2. During use, an aqueous solution is adopted for the seed soaking agent, in which the uniconazole is 30-100mg / L, the brassinolide is 0.025-0.10mg / L, the ClO2 is 100-200mg / L and the S-abscisic acid is 0.1-0.5mg / L; the weight ratio of rice seeds to the seed soaking agent aqueous solution is 1: (1-2). The seed soaking agent disclosed by the invention can enable the rice seeds to sprout robustly and healthily; seedlings grow after sprouts are adjusted and controlled; tillering in a seeding stage is promoted; during seedling generation, the seedlings are stocky and have multiple tillers, and the roots are developed; after being transplanted, the seedlings are high in re-greening speed and are rooted and tillered early; the seed soaking agent is suitable for robusting the seedlings of rice cultivated in a paddy field in China.

Description

technical field [0001] The invention relates to the field of plant growth conditioners, in particular to a seed soaking agent for cultivating multi-tiller and strong seedlings of rice and a method for using the same. Background technique [0002] Cultivating rice with multiple tillers and strong seedlings and promoting early growth after planting is the basis for high rice yield. In the main rice growing areas in my country, especially the double-cropping rice growing areas in the middle and lower reaches of the Yangtze River, the continuous cropping of late rice is limited by stubble openings, and the temperature of early rice seedlings is low, which is easy Cause low temperature and chilling injury; while the seedling age of late rice is relatively long, and seedling raising is in midsummer, the seedlings grow rapidly, and the seedlings are too large when transplanted, and the seedlings are defeated and delayed after planting, delaying the season and affecting the yield. Tw...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N59/00A01P21/00A01P3/00A01N37/42A01N43/22
Inventor 陶龙兴符冠富陈婷婷杨永杰张彩霞杨雪芹
Owner CHINA NAT RICE RES INST
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